Standard Components For Plastic Mold 2021

PRODUCT SELECTION ① SPRUE BUSHINGS

■ Sprue Bushings • Bolt fixing type Category

• Ecology Sprue Bushings(Web-only product) Category Material

• Cooling Sprue Bushings (Web-only product)

Bolt hole Pitch

String Eliminator Processing

HPM1 equivalent

Material (Hardness) SUS420J2 equivalent (37–43HRC) SUS420J2 equivalent (47–50HRC) SKD61 (48–52HRC)

S45C

SKD61

Category

Normal

Type

Normal

String Eliminator Processing

Shape Flange thickness

Bolt hole Pitch

Type

HPM1 equivalent SKD61 DC53

Material

Shape Flange thickness

S45C HPM1 equivalent SKD61 DC53 S45C

Type

Normal bolt type

L dimension selection (P3.5, SR11) P.677 L dimension designation P.679

SBBPE SBBKE

SBCS SBCSH

30mm

Normal bolt type (Flange thickness 10mm)

SBBP–B SBBK–B SBBS–B –

SBBPH–B SBBKH–B SBBSH–B

10mm

Normal bolt (Old) JIS A type

25mm 36mm

SJACE SJAME SJADE

SBCK SBCKH

SBBP SBBK SBBS –

SBBPH SBBKH SBBSH

30mm

10

Straight

10mm

Special bolt type

SBBME SBBDE

SBCD SBCDH

32mm

Plate thickness selection P.681

10

SBBJH SBBYH –

15mm

10

Shoulder type

(Old) JIS A type P.683

SBSME SBSDE

25mm 36mm

SJAC SJAM SJAD –

SJACH SJAMH SJADH –

15

■ Sprue Bushings and Locating Rings Materials

Normal bolt type

Straight

Special bolt type * P.685 L dimension designation P.687 L dimension designation P.689 L dimension designation Web - only product L dimension designation P.679

SBGPE SBGKE

30mm

Compatible Resins (Reference)

SBBM

SBBD

SBBMH

SBBDH

32mm

M Material

H Hardness

Remarks

10mm

Normal bolt (Old) JIS A type

25mm 36mm

15mm

SJGCE SJGME SJGDE

S45C

(Raw material)

Normal resin

SBBH SBBT SBBX –

SBBHH SBBTH SBBXH

38mm

10

Tapered

15

HPM1 equivalent

using aging treatment Pre-hardened steel

Special bolt type

37–43HRC

Normal resin

20mm

SBGME SBGDE

32mm

SBBF SBBR –

SBBFH SBBRH –

49mm

Glass fiber–filled resin (engineering plastics) Glass fiber–filled reinforced resin (super engineering plastic)

Hardening and tempering treatment Tempering temperature: (550 ℃ or more) Hardening and tempering treatment Tempering temperature: (200 ℃ or more)

SKD61

48–52HRC

15mm

20

Shoulder type

SBTME SBTDE

8mm

SBBZ SBBZS

SBBV SBBVS

DC53

58–62HRC

15

22mm

8

• Extension nozzle type

• Sprue lock bushings

Material

SKD61

Material

HPM1 equivalent

SKD61

SBGP SBGK SBGS –

SBGPH SBGKH SBGSH

30mm

Category

Shape

Page

Shape

Page

B dimension selection

B dimension designation

Type

Normal

Normal

Type

10mm

(Old) JIS A type P.683

Locator presser type Small nozzle type Large nozzle type Special nozzle type

25mm 36mm

SXHM SXHD

P.694

Tapered

SJGC SJGM SJGD –

SJGCH SJGMH SJGDH –

Head Type

SLBH SLBF

SXM SXD SXTM SXTD SXDM SXDD SXGM SXGD SXCM SXCD SXSM SXSD

Straight Tapered Straight Tapered Straight Tapered

10

Special bolt type * P.685 L dimension designation P.687 L dimension designation P.689 L dimension designation Web - only product

P.699

SBGM

SBGD

SBGMH

SBGDH

32mm

P.695

Straight Type

15mm

SLBS –

Tapered

SBGH SBGT SBGX –

SBGHH SBGTH SBGXH

38mm

15

20mm

■ Sprue Bushings ● Coaxiality and squareness

SBGF SBGR –

SBGFH SBGRH –

49mm

20

8mm

SBBZT SBBZTS

SBBVT SBBVTS

φ 0.2

φ 0.3

φ 0.2

φ 0.3

A

A

A

A

A

A

22mm

8

* All bolts except the special ones are general–purpose bolts.

• Shoulder type Category

Type

Normal

String Eliminator Processing

E Temper color (heat treatment color) may be applied to the end face and side face of the flange of sprue bushings made of SKD61 or DC53.

HPM1 equivalent

HPM1 equivalent

Material

Shape Flange thickness

S45C

SKD61 DC53 S45C

SKD61 DC53

Type

15mm

φ 0.02/100

φ 0.02/100 A

Shoulder type P.691

A

SBSM SBSD SBSS –

SBSMH SBSDH SBSSH

15

Straight

25–30mm

(Old) JIS B type Web - only product

● Neck of sprue bushings Flange necks of sprue bushings may have gone through a relief process (3mm range). Since the R is larger than the escape depth, the mounting hole should be chamfered. (Please refer to each page for details.)

SJBC SJBM SJBD –

SJBCH SJBMH SJBDH –

3

25–30

R

15mm

Shoulder type P.691

SBTM SBTD SBTS –

SBTMH SBTDH SBTSH

L

15

Tapered

25–30mm

(Old) JIS B type Web - only product

SJTC SJTM SJTD –

SJTCH SJTMH SJTDH –

669

670

25–30

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