Mechanical components for assembly automation.
INFORMATION ON NEW PRODUCTS
STRAIGHT EJECTOR PINS
STRAIGHT EJECTOR PINS
GAS VENT COMPONENTS
SLIDE CORE / LOOSE CORE
COMPONENTS FOR EJECTOR SPACE
MOLD OPENING CONTROLLERS
D P.436
D P.623
D P.897/898
D P.929/930
D P.33/34
D P.53/54
Front Two–step Ejector Unit Rear Two–step Ejector Unit 2 type two-step ejection. The amount of ejection can be freely adjusted. Also functions as Ejector Leader Pins / Bushings.
Internal Latch Lock Mold opening is controlled within the mold.
Sprung Cores Inclined Pins is not required. Undercut processing is possible with this product alone. Processing time is also greatly reduced.
Porous Vent ® Block Type MISUMI’s original porous metal block material. Gas is released from the entire surface of the molded product, enabling processing of a variety of shapes.
Stepped Ejector Pins for Die Cast Newly released Ejector Pins for die-casting molds with shaft diameter tolerance of –0.02/–0.04 For full-length cutting.
Dies Ejector Pin With Gas Vent Gas venting function added to die material Ejector Pins. Flat cut and headband types are available.
The amount of mold opening can be freely adjusted. Used for small and medium–sized molds with no space outside the mold.
CHEMICAL PRODUCTS / COMPONENTS FOR INJECTION MOLDING
COOLING COMPONENTS ②
GAS VENT COMPONENTS
GAS VENT COMPONENTS
GAS VENT COMPONENTS
ACCESSORIES
D P.437
D P.440
D P.455/456
D P.1036
D P.1123–1126
D P.1133
Porous Vent ® Round Type Porous metal round material. Blank type that can be machined and relief hole type that can be effortlessly installed are available.
Ejector Pins with Gas Vent Filter Ejector Pins with a gas releasing filter press-fitted into the tip. Applicable to shaped products and large products also.
Cooling Circuit Plugs –Heat resistant 150°C– High temperature type for Cooling Circuit Plugs. The Plugs that is fixed to the cooling hole and allows free setting of the cooling water circulation path.
High Performance Swivel Lifting Eye Bolts Five times higher safety factor/high durability. Can be rotated even under load. Passed 20,000 cycles of use test with maximum 1.5 times allowance load.
Insert Blocks with Slit Vent (Slit width 30μm) Slit structure provides high gas release effect. A new type that retains gas release performance even after processing is now available.
Lubricant (Heat–Resistant Grease) Heat resistance of 426°C. Adhesive, retains viscosity even at high temperatures.
CHEMICAL PRODUCTS / COMPONENTS FOR INJECTION MOLDING
CHEMICAL PRODUCTS / COMPONENTS FOR INJECTION MOLDING
CHEMICAL PRODUCTS / COMPONENTS FOR INJECTION MOLDING
GAS VENT COMPONENTS
SLIDE CORE / LOOSE CORE
SLIDE CORE / LOOSE CORE
D P.457/458
D P.578
D P.608
D P.1133
D P.1133
D P.1133
Core Pins with Gas Vent Filter Core Pins with a gas releasing filter press-fitted into the tip. Powerful filter with great gas release effect.
Oil-free Slide units for Loose Core –Assist Rod– Allows for steeper undercut tilt angles.
Micro Slide Core Unit More compact Mini Slide Core Unit. Stroke can be selected from 3mm or 6mm type.
Lubricant (Extra Heat–Resis- tant Grease) Heat resistance up to 800°C.
Detergent (Zap–Ox) New all-purpose cleaner. Removes dirt and rust from metal surfaces. Can be used for antioxidant, etc.
Sealant (Slic tite) New sealing agents are now available in chemical products. Non-drying, easy cleaning possible.
E Some products are only available in Japan or in some countries/regions.
Introduction- 1
Introduction- 2
DID YOU KNOW THAT MISUMI HAS A LINEUP OF PRODUCTS THAT CAN SOLVE A VARIETY OF PROBLEMS?
PRODUCTS TO SOLVE CUSTOMERS' PROBLEMS
Measures Against Molding Defects due to Gas
Measures Against Molding Defects due to Gas
Measures Against Molding Defects due to Gas
Safety Measures
improving Maintenance
improving Maintenance
D P.455– 457
D P.436
D P.437
D P.515– 518
D P.846
D P.1123– 1126
NEW
NEW
NEW
NEW
■ Filter Pins
■ Porous Vent ® Block Type Machining freedom No.1. Gas is released from all sides, so it is effective in any place.
■ Porous Vent ® Round Type The round material makes it easy to install. Also, the low price make it easy to try porous metals.
■ Date Marked Pin Sets Heat–resistant, with removal tap type Outside ring can also be replaced from the PL side, greatly reducing the time and effort required for replacement.
■ High Performance Swivel Lifting Eye Bolts Five times higher safety factor/high durability Bearingless prevents deformation and damage of bearings due to load.
■ Positioning Straight Pin Sets –Pin/Bushing PL Installation Type– Makes the maintenance easier because it can be installed and removed from PL side.
(Ejector Pins/Core Pins) Useful pin that allows gas to escape from the filter on the molded product surface. Special shape prevents resin inflow.
Measures Against Molding Defects due to Gas
Molding Defect String Prevention
Molding Defect String Prevention
For High Temperature
For High Temperature
For High Temperature
D P.440
D P.697
D P.675
D P.831/832 P.881/882
D P.931/932
D P.1018
■ Oil-free Leader Bushings/ Ejector Leader Bushings for high temperature Can be used up to 250°C Oil-free type that reduces the trouble of refueling.
■ Roller Lock Sets –Heat resistant type– Improved from standard type heat resistant temperature 80°C to 150°C.
■ Cooling Uni-Joints –Heat resistant type– Heat resistant 180°C Joint pipe for cooling piping with adjustable pipe length.
■ Insert Blocks with Slit Vent Diffusion bonding slit structure releases more gas, faster. Excellent for reducing maintenance.
■ Thread Prevent Cap Easy to install. Effective in thread prevention after molding trials.
■ Sprue Bushings (String Eliminator Type) Essential products for stringing prevention that is used by many customers.
Space saving
Space saving
Space saving
Cycle time reduction
Cycle time reduction
Cycle time reduction
D P.783
D P.1025/ 1026
D P.1041/ 1042
D P.578/579
D P.584
D P.897/898
NEW
NEW
■ Slide Core Unit for two– color mold Compact unitization of undercut mechanism for two–color mold.
■ Front Two–step Ejector Unit Rear Two–step Ejector Unit Two types of ejection methods can be selected to save space in a two–step ejection mechanism.
■ Rolling Gate Cut Units Convenient product that enables gate cutting with mold opening motion.
■ Heat Transaction Pipes Can be used in places with small cooling hole diameter, thus increasing cooling efficiency.
■ Air Jet Coolers for mold Efficient cooling of narrow space that cannot be cooled by water cooling and places where water leakage is a concern.
■ Micro Slide Core Unit Reduces height by up to 7mm compared to conven- tional products, allowing use in small molds such as cassette molds.
Space saving
Space saving
Space saving
Cycle time reduction
Cycle time reduction
Cycle time reduction
D P.1031
D P.707/708
D P.668
D P.929/930
D P.623
D P.564
NEW
NEW
■ Locking Blocks with Angular Pin Hole Locking block with angular pin hole function that requires no slant processing.
■ Internal Latch Lock Mold opening is controlled within the mold. The amount of mold opening can be freely adjusted.
■ Sprung Cores Inclined pin is not required. Undercut processing is possible with only this item.
■ Eco-Sprue Bushings Reduces the amount of resin material used in the sprue section and also contributes to shorter cooling time.
■ Spiral Baffle Boards –Separate Type/Straight Type– Helical flow of water enables cooling of the sides.
■ Hot Runner Nozzle Simple hot runner unit with valve open and close function. Achieves reduction of resin used and im- provement of productivity at low cost.
E Some products are only available in Japan or in some countries/regions.
Introduction- 3
Introduction- 4
INDEX
Standard Components
for Plastic Mold
It is now easily to see and find products.
Find the products you want soon!
INDEX OF ALL PRODUCTS… ……………………… Introduction- 11 HOW TO USE CATALOG… ………………………………………… 1 STRAIGHT EJECTOR PINS… ……………………………………… 5 STEPPED EJECTOR PINS………………………………………… 95 FREE FLANGE-POSITION EJECTOR PINS… …………………… 143 RECTANGULAR EJECTOR PINS………………………………… 163 EJECTOR SLEEVES…………………………………………… 217 STRAIGHT CENTER PINS……………………………………… 275 STEPPED CENTER PINS… …………………………………… 285 STRAIGHT CORE PINS………………………………………… 319 STEPPED CORE PINS… ……………………………………… 361 FOR SHAPED-ROUND SHANK / BOSS / INLAY CORE PINS… ………… 417 GAS VENT COMPONENTS… ………………………………… 431 BLOCK CORE PINS / CAVITY INSERTS… ……………………… 467 STEEL PLATES… …………………………………………… 491 DATE / RECYCLE MARK INSERTS……………………………… 503 ANGULAR PINS / LOCKING BLOCKS…………………………… 545 SLIDE CORES / LOOSE CORES………………………………… 567 GUIDE RAILS / CENTER RAILS… ……………………………… 625 SPRUE BUSHINGS / LOCATING RINGS… ……………………… 667 COMPONENTS OF RUNNER ELECTRODES……………………… 709 COMPONENTS OF GATE… …………………………………… 741 LEADER COMPONENTS… …………………………………… 785 COMPONENTS FOR POSITIONING……………………………… 835 COMPONENTS FOR EJECTOR SPACE… ……………………… 867 MOLD OPENING CONTROLLERS… …………………………… 913 COOLING COMPONENTS ① COUPLERS / FITTING JOINTS / HOSES……… 947 COOLING COMPONENTS ② JOINTS / COOLING PARTS FOR INSIDE OF MOLD… … 1007 HEATING ITEMS… …………………………………………… 1045 HEAT INSULATION SHEETS… ………………………………… 1085 ACCESSORIES… …………………………………………… 1097 CHEMICAL PRODUCTS / COMPONENTS FOR INJECTION MOLDING … 1133 – INFORMATION ON TRANSITION TO NEW LISTING– SPRING… …………………………………………………… 1139 COMPONENTS OF DIE CASTING –INFORMATION ON TRANSITION TO NEW LISTING– ……… 1189 PRODUCTS DATA/TECHNICAL DATA…………………………… 1190 BUSINESS INFORMATION……………………………………… 1231 INDEX… …………………………………………………… 1233
Quick reference table has been revised. D P.433 etc.
INDEX OF ALL PRODUCTS
D Introduction-11
The lineup of standard parts for plastic molds can be now seen at a glance. Representative products are listed for each product group.
Introduction of products that solve customer's problems On the product selection page, you can get useful information for selecting products from materials, precision, shape, features, func- tionality, and examples of use. The following indexes have been added for quick reference table. • GAS VENT COMPONENTS • COOLING COMPONENTS ②
D Introduction- 3
New Catalog
It is now possible to search for products based on the customer's problem.
Old Catalog
Introduction- 5
Introduction- 6
EXAMPLE OF USING STANDARD PARTS FOR MISUMI PLASTIC MOLD ①
Three-plate mold
Distance Spacer
Runner Ejector Sets
Screw Plug with Washer
P.724
P.1107–
P.1119
Runner Lock Pin
Leader Bushings –Straight type–
Locating Rings –Shoulder type–
Stop Bolts
Bushings for Runner Lock Pin
Sprue Bushings –Shoulder type–
P.915
P.713–
P.702/703
P.822–
P.723
P.691
Sprue Bushing Guides
Pusher Pins
Support Pins
P.946
P.817–
P.693
Leader Bushings –Head type–
スプルーブシュ -ボルトタイプ-
ロケートリング -ボルトタイプ-
ガイドピン -ヘッド付タイプ-
Runner Stripper Plate
Screw Plugs
P.0000 ・ 0000
P.0000 ~
P.0000 ~
P.821–
アンギュラピン押え板
P.1107–
テーパピンセット用 スペーサ
ガイドブシュ -ヘッド付タイプ-
Fixed Installation Plate
金型デートマークセット
P.0000
P.0000 ~
Pin-point Gate Extension Bushings
P.0000 ~
P.0000 ~
Parting Lock Bushings
Inlay Bushings
Side Straight Block Sets
P.779
Web-only products
P.921
P.858–
Gate-cut Springs
P.1183
P.0000 Fixed Die Plate Movable Die Plate 固定側取付板 アイボルト
Cavity Inserts for Gas Release
Parting Lock Sets
テーパピンセット
アンギュラピン
P.0000 ~
P.0000 ~
P.446
P.925–
スライドコア
Pin-point gate Bushings
固定側型板
スプルーロックブシュ
P.0000 ~
P.0000
P.745–
ランナーチェンジピン
Ejector Sleeves
無給油ガイドレール
ロッキングブロック
P.0000 ~
P.0000 ~ 0000 ・ 0000 ~ Sheath Thermocouple
P.0000 ~
P.227–
Cavity Insert Wedges
Cartridge Heaters
Ring
P.1056–
P.1039
P.483–
P.1076
可動側型板
冷却用ジョイント
Baffle Boards
P.0000 ~
P.1027–
Cavity Inserts
Mounting Jig for Sheath Thermocouple
P.481–
ノックピン
リターンピン
スプリングガイドピン
P.0000 ~
P.0000
Tapered Screw Plugs
P.0000 Stepped Ejector Pins
Retainers for Tension Link
Cooling Pipe
Block Core Pins –Flange Type–
Ball Retainers
P.1076
スプリング
Inlay Core Pins
Parting Locks
P.0000 ~
P.940
P.1021–
受け板
P.1043
P.887
Web-only products
P.919–
無給油スライドプレート
P.101–
P.0000 ~
P.469–
Tension Links Back Plate Spacer Block Puller Bolts
エジェクタピン
P.936–
エジェクタプレート セット用ボルト
P.0000 ~
冷却ユニジョイント
P.0000
P.0000
Spacers for Cavity Insert Wedges
スペーサブロック
P.917–
P.487–
エジェクタプレート上
可動側取付板 Upper Ejector Plate Lower Ejector Plate
エジェクタプレート下
サポートピラ
プラ金型用ネームプレート
P.0000 ~
P.0000
断熱板
P.0000 ~
Movable Mounting Plate
エジェクタロッド 無給油エジェクタガイドブシュ
P.0000 ~
P.0000 ~
Ejector Plate Return Detection Switches
Distance Spacer
エジェクタガイドピン
P.0000 ~
Ejector Leader Pins
Positioning Bolts
Support Pillar
Ejector Pin
Heat Insulation Plate
Holding Plates for Pin
Socket Head Cap Screws
Stopper Pins
P.1119
P.901–
P.1130
P.907–
P.11–
P.873–
P.1087–
P.1129
P.906
P.1099–
Ejector Leader Bushings
Center Pins
P.277–
P.880–
Straight Ejector Pins
Stepped Ejector Pins
Free Flange Position Ejector Pins
Rectangular Ejector Pin
Ejector Sleeves
Straight Center Pins
Stepped Center Pins
Straight Core Pins
Stepped Core Pins
Gas Vent Components
Block Core Pins / Cavity Inserts
For Shaped-Round Shank / Boss / Inlay Core Pins
Steel Plates
Date / Recycle Mark Inserts
Angular Pins / Locking Blocks
Slide Cores / Loose Cores
Guide Rails / Center Rails
Sprue Bushings / Locating Rings
Components of Runner / Electrodes
Components of Gate
Mold Opening Controllers
Components for Positioning
Components for Ejector Space
Leader Components
Cooling Components ② Joints / Cooling Parts for Inside of Mold
Cooling Components ① Couplers / Fitting Joints / Hoses
Heat Insulation Sheets
Heating Items
Chemical Products / Components for Injection Molding
Accessories
Springs
Components of Die Casting
Introduction- 7
Introduction- 8
EXAMPLE OF USING STANDARD PARTS FOR MISUMI PLASTIC MOLD ②
Two-plate mold
Spur Bushings –Bolt Type–
Angular Pin Retainer
P.677–
P.555
Stopper Plates for Angular Pin
Spur Bushings –Bolt Type–
Spacer for Tapered Pin Set
Locating Rings –Bolt Type–
Leader pin –Head type–
P.556
Hose Nipple
P.975–
P.677–
スプルーブシュ -ボルトタイプ- P.701/703
P.791–
P.849–
ロケートリング -ボルトタイプ-
ガイドピン -ヘッド付タイプ-
P.0000 ・ 0000
P.0000 ~
P.0000 ~
Tapered Pin Set
Leader Bushings –Head type–
アンギュラピン押え板
Date Marked Pin Sets
Slide Core
テーパピンセット用 スペーサ
ガイドブシュ -ヘッド付タイプ-
金型デートマークセット
P.839–
P.0000
P.515–
P.0000 ~
P.585–
P.0000 ~
P.0000 ~
P.821–
Selection Side Molding Plate Eyebolt
固定側取付板
Straight Core Pin
Ejector Pins with Tip Process
Block Core Pin –Flange Type–
Leader Pin
Leader Bushings
テーパピンセット
Angular Pin
アンギュラピン
アイボルト
P.0000 ~
P.325–
P.822–
P.805–
P.0000 ~ P.549–
P.0000
P.637/645– Oil-free Guide Rail
P.469–
P.75–
P.1127
スライドコア
固定側型板
スプルーロックブシュ Sprue Lock Bushings
P.0000 ~
Hose Nipple –Long Type–
P.0000
Oil-free Slide Plate
One-Step Core Pin
Air-Jet Valve
Inclined Pin
P.699
ランナーチェンジピン
Locking Block
P.367–
無給油ガイドレール
ロッキングブロック
P.93
P.613–
P.659–
P.0000 ~
P.0000 ~ 0000 ・ 0000 ~
P.0000 ~
Runner Change Pins
P.975
P.559–
P.0000 ~ Selection Side Plate Movable Mold Plate
P.725–
可動側型板
Slide Stopper
冷却用ジョイント
P.594
Knock Pin
Cooling Joints
P.1115
P.1011–
ノックピン
リターンピン
スプリングガイドピン
P.0000 ~
P.0000
Return pin
P.0000
Back Plate
スプリング
P.890–
P.0000 ~
受け板
Spring
無給油スライドプレート
Cooling Unijoint
P.0000 ~
Mold Coupler –Plug–
P.1161–
エジェクタピン
エジェクタプレート セット用ボルト
P.1017
P.0000 ~
Oil-free Slide Plate
冷却ユニジョイント
P.956–
P.0000
P.659–
P.0000
Ball Button
スペーサブロック
Spacer Ring
P.593
Spacer Block Ejector Plate Top Ejector Plate Bottom
Spring Leader Pin
エジェクタプレート上
P.906
P.1185
エジェクタプレート下
Countersunk Bolt
Ball Plunger
P.1103
Bolts for Ejector Plate Set
サポートピラ
P.591
可動側取付板
プラ金型用ネームプレート
P.0000 ~
P.0000
Stopper Ring
Movable Mounting Plate
Stroke Adjustment Color
Dowel pins
P.900
断熱板
P.906
P.1128
P.0000 ~
P.906
Round Wire Coil Spring
Heat Insulation Plate
P.1148–
P.1087–
エジェクタロッド 無給油エジェクタガイドブシュ
P.0000 ~
P.0000 ~
Ejector Leader Pin
Stopper Pin
Name Plate for Plastic Molds
Support Pillar
Ejector Pin
Ejector Rod
エジェクタガイドピン Ejector Leader Pin
Oil-free Ejector Guide Bushings
Oil-free Slide Unit for Loose Core
Ejector Leader Bushing
P.0000 ~
P.906
P.876
P.1120
P.873–
P.905–
P.880–
P.901–
P.881–
P.11–
P.599–
Straight Ejector Pins
Stepped Ejector Pins
Free Flange Position Ejector Pins
Rectangular Ejector Pin
Ejector Sleeves
Straight Center Pins
Stepped Center Pins
Straight Core Pins
Stepped Core Pins
Gas Vent Components
Block Core Pins / Cavity Inserts
For Shaped-Round Shank / Boss / Inlay Core Pins
Steel Plates
Date / Recycle Mark Inserts
Angular Pins / Locking Blocks
Slide Cores / Loose Cores
Guide Rails / Center Rails
Sprue Bushings / Locating Rings
Components of Runner / Electrodes
Components of Gate
Mold Opening Controllers
Components for Positioning
Components for Ejector Space
Leader Components
Cooling Components ② Joints / Cooling Parts for Inside of Mold
Cooling Components ① Couplers / Fitting Joints / Hoses
Heat Insulation Sheets
Heating Items
Chemical Products / Components for Injection Molding
Accessories
Springs
Components of Die Casting
Introduction- 9
Introduction- 10
STANDARD COMPONENTS FOR PLASTIC MOLD 2021
Index of All Products
P. 5
P. 361
Straight Ejector Pins
Stepped Core Pins
Without tip processing
For die cast
With gas release processing
Tip processing
Engraving
One-step
Taperless One-step
Two steps
Taperless Two-step For die cast
For Shaped-Round Shank / Boss / Inlay Core Pins
P. 95
P. 417
Stepped Ejector Pins
One-stepped ejector pins With gas release processing Tip processing
Engraving
Two-stepped ejector pins
Large diameter
Round core
For boss
Core sleeves
P. 143
P. 431
Free Flange-Position Ejector Pins
Gas Vent Components
Gas release assist unit
Porous vent ® round type
Insert blocks with slit vent
Straight
Stepped
Rectangular
Tip processed straight Tip processed stepped
Porous vent ® block Type
Filter pins
P. 163
P. 467
Rectangular Ejector Pins
Block Core Pins / Cavity Inserts
Without tip processing
R-chamfered
Tip processing
For large mold
D shaped
Straight/engraving Harden plates Cavity insert blanks Cavity insert wedges
Stop plates
P. 217
P. 491 Steel Plates
Ejector Sleeves
High-precision ground
6-faces grinded For wire cutting
For milling
2-faces grinded
Straight
Short
Stepped
For die cast
P. 275
P. 503
Straight Center Pins
Date / Recycle Mark Inserts
Full-length adjustable
With heat-resistant/ dismounting tap
PL exchange type Plate side exchange Double ring type
Tip processing
Angular Pins / Locking Blocks
P. 285
P. 545
Stepped Center Pins
One-step center pin Taperless One-step Two-step center pin Stepped one-step Stepped two-step
Angular pins Angular pin retainers Angular cams
Locking blocks
P. 319
P. 567
Straight Core Pins
Slide Cores / Loose Cores
Straight
Tip processing
Gas release
Engraving
Slide core unit
Slide core
Ball plunger
Loose core unit
Inclined pin
Introduction- 11
Introduction- 12
STANDARD COMPONENTS FOR PLASTIC MOLD 2021
Index of All Products
Cooling Components ① Couplers / Fitting Joints/Hoses
P. 625
P. 947
Guide Rails / Center Rails
Guide rail
Center rail
Slide plate
Shim for plate
Couplers
Joint couplers
Hoses
Hose related parts
Cooling Components ② Joints / Cooling Parts for Inside of Mold
P. 667
P. 1007
Sprue Bushings / Locating Rings
Sprue bushings Sprue lock bushings Sprue related parts Locating ring
Cooling Joints
Cooling Pipes
Baffle board
Cooling items
Air jet cooler
Components of Runner Electrodes
P. 709
P. 1045 Heating Items
Runner lock bushings
Temperature controller
Runner ejector sets
Change pins
Electrodes
Runner lock pins
Cartridge heater Temperature sensor
Mounting jig
Thermometer
Heat Insulation Sheets
P. 741
P. 1085
Components of Gate
High temperature proof
Bakelite Paper
Pin Gate
Extension bushings Rolling gate cut units
Standard
Heat proof
High strength
P. 785
P. 1097 Accessories
Leader Components
Shot counters for mold
Socket head cap screw
Shoulder bolts
Dowel pins
Eye Bolt
Leader pins
Support Pins
Leader Bushings
Chemical Products /
P. 835
P. 1133
Components for Positioning
Components for Injection Molding
Rust-prevention agent
Pins
Block
Side block
Positioning block set Side cotter block
Sealant
Lubricant
Detergent
P. 867
P. 1139
Components for Ejector Space
Springs
Gas springs for plastic mold
Ejector guide
Return pins
Support pillars Two-step ejection Return switch
Wire
Wire coil
Gate-cut springs Spring guide pins
P. 913
Mold Opening Controllers
Mold opening prevention plates
Mold opening related parts
Puller bolts
Parting Locks
Tension links
Introduction- 13
Introduction- 14
GUIDE TO MARKS
HOW TO USE CATALOG
Mark
Meaning Notes/Description examples
Mark
Meaning Notes/Description examples
Number applied to each part of the product that includes two parts or more.
New Products
New products sold in this catalog.
Unit No.
◦ Guide to Marks......................................................................................................................... P.2 ◦ How to use Catalog.................................................................................................................. P.3
Enforced in EU on July 22, 2019 Indicates that the product does not contain ten (10) Restricted Substances of RoHS Directive of EU more than the threshold value (or the value of the applicable exemption). (Does not indicate CE marking)
The added specifications are displayed in red.
Additional Specification
RoHS Directive (10 Substances) Compliant Products
Red character display
The changed specifications are displayed in purple.
Change Specification
Purple character display
Part Number
L
Order
M Material SKH51
Order
Material
MS 6
50
Hardness
Delivery
H Hardness 58–60HRC
Quotation Delivery
Surface Treatment
To be quoted at local MISUMI representative
Quotation
Quotation
Surface treatment Black Oxide
S
Example
Example
Accessories
A Accessories MS6–25
+ 0.005 0
Alteration can be ordered without drawings.
T
Alteration
Tolerance
Note: Warning
E Notes are described after the mark.
Indicates that specific sizes or types are not available for alteration. X D3 – 8 (D3 – 8: Not available) Also used to indicate specifications that cannot be ordered.
Not Available
Refer to Catalog Page
D
P.234
L + 0.02 0 ) When L is larger than 200, L will be + 0.05 0 (L > 200 C L + 0.05 0
Conditions and their results A C B means
1
2
HOW TO USE CATALOG
Do not fill in any details in these text boxes during calibration
0107-0108_EM02-007
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Alteration • Select alterations with code (change code). •Alteration is a system to change some standard tolerances and dimensions. Can be ordered with code (change code) without drawing. Price • To know the latest product price,send us RFQ by FAX, E-mail or online Quotation request which is available on Misumi site.
Die Steel SKD61 + Nitrided
P/L/N dimension designation type
STEPPED EJECTOR PINS – P/L/N DIMENSION DESIGNATION TYPE –
Product Name
N
L
Photograph
Part Number – L – P – N – (KC/WKC … etc.) EJSF 10 – 720.5 – P9.00 – N300 – SKC7.0
High Speed Steel SKH51
Alterations
Die Steel SKD61 + Nitrided Die Steel SKD61 Prehardened Die Steel SKD61 Stainless Steel SUS440C High Speed Steel SKH51 + Hard chromate
Alteration details D P.99
Alterations Code
Spec.
Alterations Code
Spec.
Head diameter change HC = 0.1mm increments E D + 1 ≦ HC < H
Single flat cutting D/2 ≦ KC < H/2
KC
HC
KC - 0.1 0
R ≦ 0.5
Step R
( D ≦ 2 R ≦ 0.3 )
Two flats cutting D/2 ≦ WKC < H/2
Head thickness change TC = 0.1mm increments E T/2 ≦ TC < T (Dimensions L and N remains unchanged) E T–TC ≦ Lmax.–L
About Designation Unit for Key Flat Cutting
WKC
WKC - 0.1 0
Drawing
TC - 0.05 0
TC
Varied width parallel flats cutting D/2 ≦ KAC < H/2 KBC = 0.1mm increments only KAC < KBC < H/2
T
T
KAC KBC
- 0.1 0
- 0.1 0
( L - N )
- 5 0
P
KAC
KBC
N
+ 0.1
Dowel hole boring E Available when H ≧ 4 X Combination with other than NHC/NHN not available Dowel hole + Spring pin driving E Available when H ≧ 4 X Combination with other than NHC/NHN not available
+ 0.02
+ 0.05
+ 0.5 ) 0
T d ℓ 4 2 3 6 3 5 8
0 d
( 200 < L ≦ 500
, L > 500
(1) To align the key flat with the retention diameter Unit of designation 0.05mm increments possible
L
L
L
0
0
NC
Two flats (right angled) cutting D/2 ≦ RKC < H/2
M Material SKD61 + Nitrided H Hardness Surface:
RKC
Part Number
Head thickness
T
RKC - 0.1 0
4mm JIS (6/8mm) 10mm
T Tolerance
T
T P dimension tolerance D L 1.5–8 10–20 L ≦ 500
900HV– Base material: 40–45HRC
0 –0.02 (L > 300 c T
Part Number
0 –0.05 )
ℓ 1
d
T d 4 2
ENSF 4mm (T4)
Range of guaranteed retention diameter (D) precision/ base material hardness/surface hardness for nitrid- ing/Step R (Details D P.97 )
DKC Three flats cutting D/2 ≦ DKC < H/2
NCW
–0.01 –0.02 –0.01 –0.03
–0.01 –0.03 –0.01 –0.04
Index
6 8
5
3
DKC - 0.1 0
0 –0.05
DKC
EJSF
T
6/8mm (JIS)
L > 500
Materials and others
Dowel hole + Dowel pin driving E Available when H ≧ 4 X Combination with other thanNHC/NHN not available
P –0.01 –0.02 –0.01 –0.02
SKC Four flats cutting D/2 ≦ SKC < H/2
ℓ 2
d
T d 4 2
(2) To designate arbitrary key flat dimensions Unit of designation 0.1mm
Head thickness 4mm
Head thickness JIS
- 0.1 0
NCS
SKC
Part Number
6 8
5
3
P 0
L 0.01mm increments (L > 500 c 0.1mm increments)
T
–0.005
P 0.01mm increments
N 1mm increments
AG °
Two flats (angled) cutting D/2 ≦ KGC < H/2 AG = 1° increments 0 < AG < 360
± 0.5
Type
0 °
KGC
P 0
Numbering at the back part of the head Range of designation and Designation method: D P.100 X Combination with SKC/MC not available Automatic sequential numbering on the head Range of designation and Designation method: D P.100 X Combination with SKC/MC not available
H T H T
D
–0.002
217
Head thickness 4mm
Head thickness JIS
Sub-index
KGC
NHC
Tip Diameter Designation Total Length Designation
120 ° 120 °
1.5
40.00–200.00
0.80– 1.40 0.80– 1.90 0.80– 2.40 1.00– 2.90 1.50– 3.40 1.50– 3.90 2.50– 4.40 3.00– 4.90 3.50– 5.40 4.00– 5.90 4.50– 6.40 4.90– 6.90 5.90– 7.90 7.90– 9.90 8.90–11.90 10.90–14.90 11.90–15.90 15.90–19.90
3 4 5 6
Three flats cutting at 120° D/2 ≦ KTC < H/2
N ≧ 15 and 15 ≦ (L–N) ≦ 150
- 0.1 0 120 °
• The part, which shows the characteristics of the products in the each mirror margin, is colored.
KTC
2
1 2 3
NHN
KTC
40.00–300.00
How to find the product To quickly check shape, model, and description page of the product, use: • Index of All Products... ............ D Introduction -11 • Index...................................... D P.1233
2.5
–
– –
Tip Diameter Total Length Designation Tip Diameter Total Length Designation
3
Head tapping E Available for EJSF when D ≧ 8, H ≧ 13, T = 8 X Combination with any other alteration not available
MC
D 8
M
40.00–400.00
M4 10 M5 12/15 M6 16/20 M8
3.5
Tip Process
MC
7
4
40.00–400.00 (50.00–600.0)
M × 1
8
Engraving
4.5
• N ≧ 15 (T4) and 20 ≦ (L–N) ≦ 200
8
ENSF
5
40.00–500.00 (50.00–600.0)
4
Gas Vent
9
5.5 40.00–500.00 (50.00–500.00) 6 40.00–500.00 (50.00–1000.0) 6.5 40.00–500.00 (50.00–700.0)
6
9
10
10
11
EJSF
7 8
• N ≧ L – 3
(JIS)
11 15 17
13 15 17 20 21 25
40.00–500.00 (50.00–1000.0)
and (L–N) ≧ 10
10 12 15 16 20
• The usage examples of each product are explained in an easy-to-under- stand way. Example
8
Dimension Table
50.00–900.0
– –
–
50.00–1000.0
• Select blue characters one by one from the left to find order symbols.
E The figures in ( ) for L dimension are for EJSF only.
E Nitriding may extend to the head as it is applied after dimension P machining.
Part Number – L – P – N ENSF 2.5 – 149.78 – P1.5 – N70
Quotation
Delivery
Order
• Dimensions unnecessary to specify for order symbols are covered with blue mesh.
• Printed in red means added specifications, printed in purple means specifications were altered.
Page
107
108
JIS notation
0107-0108_EM02-007.indd 全ページ
2021/03/10 11:45:09
LSP ( L Shape Swivel Type)
Shipping Date
Compatible with P.955 socket
How to Order
12
l
• CAD data (2D/3D) is available (Excluding some products). Download the catalog from MISUMI-VONA. CAD data
※ Socket Connections
• The codes and specific examples required for ordering are listed.
R ( PT )
M Material Brass(C3604) Screw Part JIS B0203 Tapered Screw for Pipe R (PT)
d
E There is hole for hexagon wrench on the tapered screw.
• The indication of JIS standard on the page of each commodity is for reference only and does not signify onspec product.
3
4
STRAIGHT EJECTOR PINS
Straight Ejector Pins
Straight Ejector Pins with Tip Process Straight Ejector Pins with Engraving
Red Letters: New products
P dimension designation, L dimension selection type
P/L dimension designation type
P dimension designation, L dimension selection type
P/L dimension designation type
Standard type
Shape
P dimension designation, L dimension selection type
P/L dimension designation type
L dimension designation type
M
T L
T L
T L
T L
T
T
Category
L
L
Material
Part Number Page Part Number Page Part Number Page Part Number Page
Part Number Page Part Number Page
Part Number
Page
Part Number
Page
Head thickness (T) Shaft diameter (P) Tolerance
EPV □ M / EPV □ MR (Sequential number)
*** EPVB □ M / EPVB □ MR (Sequential number) ***
0 –0.002 0 –0.005 0 –0.005 0 –0.005 –0.01 –0.02
EPV–L EPH–L
EPV–G EPH–G EPHE–G EPY–G EPHJ–G EPHJE–G
EPVB EPHB
–
–
–
P.21 P.13 P.13 P.13 P.15 P.15
P.21 P.17 P.17 P.17 P.17 P.17
P.21 P.19 P.19 P.19 P.19 P.19 P.23 P.23 P.23 P.23 P.23 P.31 P.31 P.37 P.41 P.41 P.43 P.45
EPH □ A EPHE □ A
EPHB □ A EPHBE □ A
P.77 EPH □ M / EPH □ MR (Sequential number) / EPH □ T P.83 / 89 EPBH □ M / EPHB □ MR (Sequential number) / EPHB □ T P.85 / 89 P.77 EPHE □ M / EPHE □ MR (Sequential number) / EPHE □ T P.83 / 89 EPHBE □ M / EPHBE □ MR (Sequential number) /EPHBE □ T P.85 / 89
4mm (T4)
* EPH
P.11 P.11
P.75 P.75
* EPHE–B
EPHE–L
EPHBE
SKH51
4mm (T4) Small diameter
EPY–L
EPYB
–
–
–
–
–
EPHJB □ A EPHJBE □ A
EPHJ □ M EPHJE □ M
EPHJB □ M EPHJBE □ M
EPHJ □ A EPHJE □ A
EPHJ
EPHJ–L EPHJE–L
EPHJB EPHJBE C–EPHB C–EPHBE C–EPYB C–EPHJB C–EPHJBE
P.15 P.15
P.75 P.75
P.77 P.77
P.83 P.83
P.85 P.85
6/8mm (JIS)
–0.01 –0.02
EPHJE
0 –0.005
– – – – –
– – – – –
– – – – –
– – – – –
– – – – –
– – – – –
– – – – – – – – – – – – – –
4mm (T4)
–0.01 –0.02
SKH51 + Hard chromate plating
4mm (T4) Small diameter
0 –0.005 0 –0.005
6/8mm (JIS)
–0.01 –0.02
EPNB □ A EPJB □ A
EPN □ M / EPN □ MR (Sequential number) EPJ □ M / EPJ □ MR (Sequential number)
4mm (T4)
EPN □ A EPJ □ A
* EPN * EPJ
EPN–L EPJ–L
EPNG EPJG
EPNB EPJB
P.25 P.25
P.27 P.27
P.29 P.29
P.79 P.79
P.81 P.81
P.87 P.87
Reference tolerance –0.01 –0.02
6/8mm (JIS)
SKD61 + Nitriding
–0.02 –0.04
T ** (4/5/6/8/10/12mm)
DCEPD
DCEPDL
– –
–
–
–
– – – – – – –
Reference tolerance –0.01 –0.02
EPDBS □ A EPDB □ A
10mm (T10)
EPDS □ A EPD □ A
DEP
DEPL
DEPB
**
**
P.35 P.39 P.39 P.43 P.45 P.45
P.37 P.41 P.41 P.43 P.45 P.45
0 –0.005
EPDS * EPD EPAJ EPW EPWJ
EPDS–L EPD–L EPAJ–L EPW–L EPWJ–L
EPDGS EPDG EPAJG EPWG EPWJG
EPDBS EPDB EPAJB EPWB EPWJB
**
**
P.39 P.39 P.43 P.45
4mm (T4)
SKD61
–0.01 –0.02
– – – –
– – – –
Reference tolerance –0.01 –0.02
4/6/8mm (JIS)
SKD61 Pre–hardened
4mm (T4) 6mm (JIS)
0 –0.005
SUS440C
P.45 P.45 * The 50 PACK/100 PACK are advantageous for the standard length type of mark. e ** Web–only products *** Varies depending on the shaft diameter (P).
Straight Ejector Pins with Gas Vent –Die Steel–
Red Letters: New products
Straight Ejector Pins with Gas Vent –High Speed Steel–
L dimension designation type
P/L dimension designation type
L dimension designation type
P/L dimension designation type
Shape
Shape
Flats cutting
Flats cutting
Flats cutting
Flats cutting
T
T
T
T
L
L
L
L
Category
Category
Headband
Headband
Headband
Headband
Material Head thickness (T) Shaft diameter (P) Tolerance
Type
Part Number
Page Part Number
Page
Type
Material Head thickness (T) Shaft diameter (P) Tolerance
Part Number
Page
Part Number
Page
4mm (T4)
Single face
GW (S) –EPN–L
GW (S) –EPNB
P.53
P.53
Single face
0 –0.005
GW (S) –EPH–L
GW (S) –EPHB
Reference tolerance
SKD61 + Nitriding
6/8mm (JIS) 10mm (T10)
GW (S) –EPJ–L
GW (S) –EPJB
P.53
P.53
4mm (T4)
–0.01 –0.02
–0.01 –0.02
GW(S)–EPHE–L
GW (S)–EPHBE
GW (S) –DEPL
GW (S) –DEPB
P.55
P.55
P
P
P.47
P.47
Four faces
0 –0.005
GW (S) –EPDS–L
GW (S) –EPDBS
P.57
P.57
Four faces
0 –0.005
4mm (T4)
GW(S)–EPHJ–L
GW (S) –EPHJB
SKD61
–0.01 –0.02
GW (S) –EPD–L
GW (S) –EPDB
P.57
P.57
6/8mm (JIS)
–0.01 –0.02
4/6/8mm (JIS)
Reference tolerance –0.01 –0.02
SKD61 (Pre–hardened)
GW(S)–EPHJE–L
GW(S)–EPHJBE
GW (S) –EPAJ–L
GW (S) –EPAJB
P.59
P.59
P
SKH51
P
4mm (T4)
GV–EPN–L GV–EPJ–L
GV–EPNB GV–EPJB GV–DEPB GV–EPDBS
P.61 P.61 P.63 P.65 P.65 P.67
P.61 P.61 P.63 P.65 P.65 P.67
GV–EPH–L GVB–EPH–L GV–EPHE–L GVB–EPHE–L GV–EPHJ–L GVB–EPHJ–L GV–EPHJE–L GVB–EPHJE–L
GV–EPHB GVB–EPHB GV–EPHBE GVB–EPHBE GV–EPHJB GVB–EPHJB GV–EPHJBE GVB–EPHJBE
P.49 P.51 P.49 P.51 P.49 P.51 P.49 P.51
P.49 P.51 P.49 P.51 P.49 P.51 P.49 P.51
0 –0.005
Reference tolerance
SKD61 + Nitriding
6/8mm (JIS) 10mm (T10)
4mm (T4)
–0.01 –0.02
–0.01 –0.02
GV–DEPL
0 –0.005
GV–EPDS–L GV–EPD–L GV–EPAJ–L
0 –0.005
4mm (T4)
SKD61
6/8mm (JIS)
–0.01 –0.02
GV–EPDB
P
P
–0.01 –0.02
4/6/8mm (JIS)
SKD61 (Pre–hardened)
Reference tolerance –0.01 –0.02
GV–EPAJB
■ Refer to D P.96 for characteristics of materials for straight ejector pins.
Pins for ejector block
Air–Jet Valves
P.93/94
Dowel pins
Z Groove Processed Straight Ejector Pins
P.94
P.91
Tip processing
Shape
Category
T
L
Close–up of tip end
Head thickness (T)
Shaft diameter (P) Tolerance
Material
Part Number Page
Air–Jet Valves Spacer Part Number AJVE AJV AJVS
5
6
Z–EPH–L Z–EPHE–L
0 –0.005
SKH51 4mm (T4)
P.69
Part Number EBPJ
Part Number WSP MS
–0.01 –0.02
PRODUCT DATA
■ Guaranteed Range of Shaft–diameter Precision
■ Guaranteed Range of Nitriding and Surface Hardness Straight Ejector Pins
Surface hardness
Head thickness (T)
● Details of part A
M Material
x 3 max.
As shown in the figure on the left, smooth step R processing is performed on the junction section between the shaft diameter (P) area and the relief area. ※ Size of step R: approximately 100R (reference value)
①
② (Guaranteed range of nitrided surface hardness)
※ Cross–sectional view
(Range of guaranteed shaft diameter precision)
x 1
b 1
x 1
b 1
b 3 (Guaranteed range of nitrided surface hardness)
x 3
T4 (4mm)
※ Step R
40
SKD61 + Nitrid- ing
Base material hardness
–
900HV–
JIS (4/6/8mm)
A
40
900HV–
L
①
②
(without nitrided layer) (with nitrided layer)
b 1 ≧ L− x 1 max.
T10 (10mm)
L
40
b 3 ≧ L −x 3 max. ● Nitriding
x 1 max.
T Shaft Diameter (P) Tolerance
Nitriding is one of the steel surface treatment methods.
p 1 Precision
Shaft diameter 0.01mm increments
Head thickness (T)
Shaft diameter fixed side
M Material
The steel is placed in a furnace that is then filled with nitrogen gas, and at high temperatures (around 500 ℃ ) a hardened layer combined with the nitrogen is formed on the surface of the steel.
(Nitrided)
L150.00 or less
L150.01 –200.00
L200.01 –250.00
L250.01 –300.00
L300.01 or more
T4 (Extra Precision P < 0.8) EPV–L EPV–G EPVB T4 (Extra Precision P ≧ 0.8) EPV–L EPV–G EPVB
10
10
● Nitrided
This refers to the depth of the hardened layer formed on the surface of the steel by nitriding treatment.
0 –0.002
Depth
The nitrided depth of MISUMI's Hardness of 900HV– plastic mold ejector pin is 0.003–0.008mm (reference value) and the depth at which the hardness of steel increases due to the combination with nitrogen is 0.1mm from (reference value) than the surface. The nitrided depth of straight ejector pin is controlled by adjusting nitriding temperature and treatment time in accordance with shaft diameter size. In the case of stepped ejector pins, nitrided depth is controlled by adjusting nitriding temperature and treatment time in accordance with tip diameter (P) size. For this reason, the surface hardness of the retention diameter (D) of stepped ejector pins becomes slightly lower at around 500HV (reference value).
30
30
–
–
–
–
p 1 = P
0 –0.1
T4 (Small diameter) EPY–L EPY–G EPYB
SKH51
10
10
0 –0.005
30 35 30 35
30 35 30 35
30 35 30 35
T4 (4mm)
60
100
150
■ Hardness of ejector pins
JIS (6/8mm)
T4 (4mm)
p 1 = P
Normally, it is quite easy to file down an ejector pin using a regular file (metalworking file). The nitriding treatment applied to the surface of SKD61 + Nitriding makes it difficult to file down because the file does not bite as easily into the surface. The nitrided layer is several microns thick, so a little pressure should be applied to the file. ※ Most regular metalworking files have a hardness of 68–70HRC. How to measure the hardness of the ejector pin: 1) If you want to check the hardness quickly and easily, use a simple hardness check file. 2) When you want to measure hardness accurately, we recommend using a Vickers hardness tester or micro–Vickers hardness tester. Since Vickers hardness testers can change the test load during hardness measurement, they are useful for measuring objects that are small, thin, or have curved surfaces. It is suitable for hardness testing of thin cylindrical parts such as ejector pins.
–0.01 –0.1
–0.01 –0.02
60
100
150
JIS (6/8mm)
Metalworking le
T4 (4mm)
Ejector Pin
See attached table 1
40
40
40
40
40
40
JIS (6/8mm) T10 (10mm) T ** (4/5/6/8/10/12mm)
SKD61 + Nitriding
p 1 = P p 1 = P p 1 = P
–0.01 –0.1
–0.02 –0.04
40
40
40
40
40
40
Load
0 –0.1
0 –0.005
SKD61
40
40
40
40
40
40
T4 (4mm)
–0.01 –0.1
–0.01 –0.02
Hardness tester
SKD61 Pre–hardened
See attached table 1
35 30 35
35 30 35
35 30 35
35
35
35
JIS (4/6/8mm)
Ejector Pin
T4 (4mm)
V block
p 1 = P
0 –0.1
0 –0.005
–
–
–
SUS440C
JIS (6/8mm)
E Check each product page as well.
■ Attached Table 1 L P
■ Guaranteed Range of Base Material Hardness
One point advice Rockwell hardness tester (C scale) is generally not suitable for measuring the hardness of thin cylindrical parts such as ejector pins.
L ≦ 500 L > 500 p 1 Precision
x 2
b 2 (Guaranteed Range of Base Material Hardness)
The Rockwell hardness tester (C scale) applies a large load (150 kgf) to the object to be measured with a diamond conical indenter when measuring hardness. If the object to be measured is not flat (curved surface), the conical indenter will slip and measurement error will occur, causing the meter to display a lower hardness than the actual hardness. The measurement error of this curved surface shape requires correction of the values according to the manual supplied with the hardness tester. (The thinner it is, the larger the measurement error.) In order to keep the measurement error of the Rockwell hardness tester (C scale) low, it is necessary to cut the object, make a flat part, and measure that part. Not suitable for measurement of thin plates. (Generally speaking, a thickness of at least 1.2mm is required for hardness measurement.) General guideline (reference value) for measuring cylindrical objects (curved surface) with a Rockwell hardness tester (C scale): –Approximately φ 6mm............Not suitable for measurement because of large error and difficulty in measurement. φ 6.5–9mm..............................needs to be corrected according to the manual provided with but it is said to be unsuitable due to large measurement errors. φ 10–25mm.............................Correction is required according to the supplied manual. Approximately φ 30mm............No need for numerical correction after measurement. * There are models that can be changed from C scale (HRC) to A scale (HRA) or D scale (HRD) of Rockwell hardness testers, but the load applied during measurement is as high as 60 kgf for A scale and 100 kgf for D scale, so they are not suitable for measuring thin objects or objects with curved surfaces as well as C scale. ※ For details, check the manual that comes with the hardness tester.
T + 2
–0.01 –0.02 –0.01 –0.03 –0.01 –0.04
–0.01 –0.03 –0.01 –0.03 –0.01 –0.05
1–13
p 1 = P
–0.01 –0.1
13.01–20
Head annealing
b 2 ≧ L− x 2 max.
① ②
③
L
p 1 = P
–0.01 –0.15
20.01–25
Base material hardness
Head thickness (T) x 2 max.
M Material
①
②
③ (Guaranteed range of base material hardness)
T4 ( EPY–L EPV–L EPVB EPY–G EPV–G EPYB EVSL EVSG EVSF EHYF ERVYF )
58–60HRC Overall quenching (no annealing)
58–60HRC Overall quenching (no annealing)
0
58–60HRC
※ SKH51
■ MISUMI Ejector Pin Tempered Hardness and General Tempered Hardness M Material SKH51 (JIS high–speed steel)
T4 (4mm)
30 35
M Material SKD61 (JIS die steel) pre–hardened, and nitrided
28–35HRC (reference value)
28–60HRC (reference value)
58–60HRC
JIS (4/6/8mm)
70HRC
70HRC
About 68–70HRC
T4 (4mm)
Metalworking le (Reference value)
Metalworking le (Reference value)
28–45HRC (reference value) (Excluding nitrided surface) 28–43HRC (reference value) (Excluding nitrided surface) 28–45HRC (reference value) (Excluding nitrided surface) 28–45HRC (reference value)
28–45HRC (reference value) (Excluding nitrided surface) 28–43HRC (reference value) (Excluding nitrided surface) 28–45HRC (reference value) (Excluding nitrided surface) 28–55HRC (reference value)
40–45HRC (Excluding nitrided surface) 40–43HRC (Excluding nitrided surface) 40–45HRC (Excluding nitrided surface)
About 68–70HRC
65HRC
68HRC
JIS (4/6/8mm) T10 (10mm) T ** (4/5/6/8/10/12mm)
Cutting Tool (Reference value)
SKD61 + Nitriding
SKH51
60HRC
66HRC
40
About 64–67HRC
55HRC
64HRC
Press Die Punch (Reference value)
(General completely quenched) (Ex.) Plate, etc.
About 61–64HRC
SKH51
SKD61
About 48–52HRC
50HRC
62HRC
SKD61
T4 (4mm)
40
50–55HRC
45HRC
60HRC
Ejector pin for plastic mold
Ejector pin for plastic mold
SKD61 Pre–hardened
SKD61
About 40–45HRC
SKH51
About 58–60HRC
JIS (4/6/8mm)
35
28–45HRC (reference value)
28–45HRC (reference value)
40–45HRC
40HRC
58HRC
■ Finishing of tips and edges
T4 (4mm)
30 35
SUS440C
26–35HRC (reference value)
26–60HRC (reference value)
56–60HRC
When ejector pins are processed to determine the total length, fine, processing burring about 0.02–0.05mm (reference values) in length occurs at the edge of the tip. When this burring is removed, a slight sag results. MISUMI does not deburr the tip in order to prevent sagging. The allowable sag R at the tip of the pin depends on a variety of conditions such as precision of individual mold, characteristics of the formed object, various shape and resin type. For this reason, the sag R caused by deburring may be an issue. Use an oilstone, sandpaper, cloth, etc. to remove the burring according the precision control standards on your design drawing of the mold being used.
JIS (4/6mm)
※ The following products are fully hardened. Straight ejector pin EPH P ≦ 0.2
• Annealing is performed on the heads of SKH51 SUS440C SKD61 to achieve a level of 30HRC. Annealing is performed on heads of SKD61 + Nitriding SKD61 Pre–hardened to achieve a level of 40HRC.
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