ALTERATION GUIDE FOR STEPPED EJECTOR PINS
Items
Applicable Products
Alterations
Code
Specifications
Items
Applicable Products
Alterations
Code
Specifications
Reduces the head diameter. Range of designation D + 1 ≦ HC ＜ H and D ≧ 1.5 Unit of designation 0.1mm increments Designation method HC6.5 Reduces the head diameter. (Precision) Range of designation D + 1 ≦ HCC ＜ H–0.3 and D ≧ 1.5 Unit of designation 0.1mm increments Designation method HCC6.1
Head diameter change
Precision key at cutting
Precision single flat cutting Range of designation D/2 ≦ VKC ＜ H/2 E Only high speed steel SKH51 is applicable Precision two parallel flats cutting Range of designation D/2 ≦ VWC ＜ H/2 E Only high speed steel SKH51 is applicable
HC
VKC
－ 0.02 0
VKC
When aligning the head cut with the retention diameter surface position
Head diameter change (precision)
Precision key at cutting
VWC
HCC
－ 0.02 VWC 0
Key at cutting
Head diameter change
Reduces the head thickness from the standard. Dimension L remains unchanged except for blank types. Range of designation T/2 ≦ TC ＜ T E D ≧ 1.5 E T–TC ≦ Lmax.–L
Single flat cutting Range of designation D/2 ≦ KC ＜ H/2 Two parallel flats cutting Range of designation D/2 ≦ WKC ＜ H/2
TC
KC
TC
KC
－ 0.1 0
T
KC
Dowel hole boring Adds a dowel hole by using WSP/MS. Designation method NC E Available when head diameter H ≧ 4 X Combination with other than NHC/NHN/TMC/GVC not available Dowel hole boring + Spring pin driving Designation method NCW E Available when head diameter H ≧ 4 X Combination with other than NHC/NHN/TMC/GVC not available. Dowel hole + Dowel pin driving Designation method NCS E Available when head diameter H ≧ 4 X Combination with other than NHC/NHN/TMC/GVC not available.
Unit of designation 0.05mm increments possible Designation method • VKC3 (When D6) • VWC3.5 (When D7) • KC0.75 (When D1.5) • WKC3.5 (When D7) • KAC1.25–KBC2.0 (When D2.5) • RKC2.25 (When D4.5) • DKC3 (When D6) • SKC2.5 (When D5) • KGC1.5–AG125 (When D3) • KTC3.25 (When D6.5) E Tolerance remains unchanged when D/2 is designated to align to the retention diameter.
ℓ
Dowel hole boring
T 4 6
d 2
Dowel pin
＋ 0.1 0
Key at cutting
3
MS2
d
NC
WKC
3
MS3
8 10
5
－ 0.1 WKC 0
T
4
MS4
Stepped Ejector Pins
d Dowel hole boring + Spring pin
Varied width two parallel flats cutting Range of designation D/2 ≦ KAC KAC ＜ KBC ＜ H/2
Key at cutting
ℓ 1
T d 4 2
Spring pin
KAC KBC
WSP2 WSP3 WSP4
NCW
6
3
5
－ 0.1 0
－ 0.1 0
8 10 4
KAC
KBC
T
Key at cutting
d Dowel hole boring + Dowel pin
＊ Excluding products with tip process and engraving
ℓ 2
Right angled two flats cutting Range of designation D/2 ≦ RKC ＜ H/2
T d 4 2
NCS
RKC
6 8
5
3
－ 0.1 0
RKC
Stepped Ejector Pins
T
Key at cutting
Numbering at the back of the head Electrolytic marking method is used to insert ID code on the back of the head. (about 1.8 angle, Round–Gothic type) Available characters 10 types of Numerals (0–9), and 26 types of Alphabets (A–Z) Range of designation 1 character when 2 ≦ H ＜ 4.9
Three flats cutting Range of designation D/2 ≦ DKC ＜ H/2 Four flats cutting Range of designation D/2 ≦ SKC ＜ H/2
Numbering
DKC
To designate an arbitrary flat size
－ 0.1 DKC 0
A13
DKC
Head alteration
Up to 2 characters when 5 ≦ H ＜ 6.9 (only the first character may be an alphabet) Up to 3 characters when 7 ≦ H (only the first character may be an alphabet.)
NHC
Key at cutting
3
Designation method NHC–6 NHC–23 NHC–A90 E Available when head diameter H ≧ 2 X Combination with SKC/MC not available. X The processing is not possible if the back of the head cannot accommodate the size of 1.8 long x 1.8 wide x no. of characters. Numbering at the back part of the head (Automatic sequential numbering) Automatically adds sequential numbers at the back of the head when multiple ejector pins of identical size are ordered. Available characters Same as NHC (see above) Range of designation Same as NHC (see above) Designation method W hen 3 pieces are ordered with NHN–1, a sequential number starting from 1 is added at the back part of the head of each piece.
SKC
－ 0.1 0
SKC
KC Unit of designation 0.1mm increments only Designation method • VKC1.4/VWC2.3/KC1.4/WKC2.3
Aside from reference plane (0°), an angle for key cutting can be specified. Range of designation D/2 ≦ KGC ＜ H/2 AG = 1° increments 0 ＜ AG ＜ 360
AG ° ± 0.5 Key at cutting (angled)
KGC
0 ° KGC
Numbering
• KAC1.4–KBC1.6/RKC1.4/DKC1.8 • SKC5.8/KGC1.4–AG135/KTC2.3
Key at cutting (angled)
Three flats cutting at 120°. Range of designation D/2 ≦ KTC ＜ H/2
1
2
3
120 ° 120 °
NHN
－ 0.1 0 120 °
KTC
When 10 pieces are ordered with NHN–A15, a sequential number starting from A15 through A24 is added at the back part of the head of each piece.
Head alteration
KTC
A1
A2
A3
E Only available when two or more pieces of identical size are ordered. E Available when head diameter H ≧ 2 X Combination with SKC/MC not available. X The processing is not possible if the back of the head cannot accommodate the size of 1.8 long x 1.8 wide x no. of characters.
D/2 0 ° θ 0 － 0.1 Key at cutting (angled) 0 ° 90 ° Key at cutting (angled) 270 °
Changes the flat position (standard: 0°) clockwise in 1° increments. Range of designation 0 ≦ AKC ＜ 360 E No need to designate AKC0 Unit of designation 1° increments Designation method θ= 45° c AKC45
AKC
180 °
Tapping
E Available when D ≧ 8, H ≧ 13, T ≧ 8
Creates a tap on the head.
MC
Designation method MC When D 8.00–9.99 M4
When D10.00–11.99 M5
MC
Adds two parallel flats at the standard position 0°. Moreover, changes the position clockwise in 1° increments. Range of designation 0 ≦ AWC ＜ 360 Unit of designation 1° increments Designation method θ= 0° c AWC0, θ= 45° c AWC45 Adds two right–angled flats at the standard position 0°. Moreover, changes the position clockwise in 1° increments. Range of designation 0 ≦ ARC ＜ 360 Unit of designation 1° increments Designation method θ= 0° c ARC0, θ= 45° c ARC45 Adds three flats at the standard position 0°. Moreover, changes the position clockwise in 1° increments. Range of designation 0 ≦ ADC ＜ 360 Unit of designation 1° increments Designation method θ= 0° c ADC0, θ= 45° c ADC45 Adds a flat at the standard position 0° and another is made clockwise in 1° increments from the standard position to make a total of two flats. Range of designation 0 ＜ KGA ＜ 360 Unit of designation 1° increments Designation method θ= 135° c KGA135 Adds a flat at the standard position 0° and another is made clockwise in 1° increments from the standard position to make a total of two flats. E Please note that standard position 0° is upper surface which is different from other alterations. Range of designation 0 ＜ KG ＜ 360 Unit of designation 1° increments Designation method θ= 135° c KGB135
90 °
When D12.00–15.99 M6 When D16.00–20.00 M8 X Combination with key flat cutting NC/NCW/NCS/HC/HCC/NHC/NHN not available.
ℓ= M × 1
AWC
θ 0 °
0 °
180 °
Extra Precision Stepped Ejector Pins
Tip tolerance alteration
0 － 0.1
Tolerance of tip can be changed. 0 –0.002 c –0.001 –0.003 Designation method PKC
D/2
Tolerance alteration
270 °
PKC
Key at cutting (angled)
90 °
θ
Stepped Ejector Pins
Tip LAP finishing
ARC
Stepped Ejector Pins
180 °
0 °
Performs lapping on the tip face. Available for Full Length Designation type when the material is SKH51 and Tip Diameter/Full Length Designation type E Available when P ≧ 0.6
0 °
TMC
0 － 0.1
D/2
270 °
L
Key at cutting (angled)
with Tip Process & Stepped Ejector Pins with Engraving
90 °
Tip alteration
Tip shaft diameter alteration Range of designation When P –0.01
The tolerance of the flat cutting width is 0 −0.1 .
–0.02 , P–0.08 ≦ PCC ＜ P–0.02
ADC
θ
Gas Release Stepped Ejector Pins
0 °
180 °
0 °
PCC
When P 0.01 –0.005 , P–0.08 ≦ PCC ＜ P Unit of designation PCC = 0.01mm increments Designation method PCC5.92 Gas vent machining Range of designation 2 ≦ S ≦ 10, S + 5 ≦ B ≦ 30 Unit of designation S, B = 1mm increments Designation method GVC–S3–B20 E Available for P ≧ 3
0 － 0.1
D/2
270 °
Key at cutting (angled)
90 ° θ
Gas vent machining
P
t
Stepped Ejector Pins
KGA
R1 R1
180 °
0 ° 0 － 0.1
3.00 – 4.99 5.00 – 9.99 10.00–12.00
0.3 0.4 0.5
GVC
270 °
D/2
＋ 0.1 0 ＋ 0.1 S B 0
Shaft alteration
0 ° θ Key at cutting (angled)
Relief under the head
Extra Precision Stepped Ejector Pins
Adds a relief under the head. Designation method TRN
TRN
KGB
90 °
270 °
180 °
Tip angle alteration Range of designation 60 ≦ GCB ＜ 90 Unit of designation 1° increments Designation method GCB85 E Available when L ≦ 200 X Combination with GCD not available Tip angle alteration Range of designation 60 ≦ GCD ＜ 90 Unit of designation 1° increments Designation method GCD80 E Available when L ≦ 200 X Combination with GCB not available Engraved character depth alteration 0.05 c 0.1 0.2 c 0.1 0.2 c 0.3 Designation method EC E Available when P ≧ 1 X Combination with GCB/GCD not available
Varied width two parallel flats cutting Range of designation D/2 ≦ KAC KAC ＜ KBC ＜ H/2 X Combination with other key flat cutting not available
GCB
Key at cutting
KAC KBC
＋ 0.05 0
Stepped Ejector Pins with Engraving
L
Engraving alteration
＋ 0.05 0
－ 0.1 0
－ 0.1 0
L
KAC
KBC
GCD
GCD °
E Note that designating (H/2–0.15) or more for key flat cutting alteration will create hardly any flat on the head.
99
100
EC
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