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GUIDE FOR SPRUE BUSHINGS AND LOCATING RINGS

List for Sprue Bushings

(Ecology Sprue Bushings)
Category Type Type Material
S45C HPM1 comparable SKD61 DC53
Normal bolt type
(Flange thickness:
10mm)
Straight - SBBPE SBBKE -
Tapered - SBGPE SBGKE -
Shoulder type Straight - SBSME SBSDE -
Tapered - SBTME SBTDE -
Normal bolt type
(Flange thickness :
10mm)
Old JIS A type
Straight SJACE SJAME SJADE -
Tapered SJGCE SJGME SJGDE -
Proper bolt type
(Flange thickness :
10mm)
Straight - SBBME SBBDE -
Tapered - SBGME SBGDE -
(Bolt type)
Category Type Material S45C HPM1 comparable SKD61 DC53
Type Normal String eliminator type Normal String eliminator type Normal String eliminator type Normal String eliminator type
Normal
bolt
(P3.5,
SR11)
(Flange
thickness:
10mm)
Straight - - SBBP-B SBBPH-B SBBK-B SBBKH-B SBBS-B SBBSH-B
Normal
bolt type
(Flange
thickness:
10mm)
Straight - - SBBP SBBPH SBBK SBBKH SBBS SBBSH
Tapered - - SBGP SBGPH SBGK SBGKH SBGS SBGSH
Normal
bolt
(Flange
thickness:
10mm)
Straight - - - SBBJH - SBBYH - -
Old
JIS A
type
Straight SJAC SJACH SJAM SJAMH SJAD SJADH - -
Tapered SJGC SJGCH SJGM SJGMH SJGD SJGDH - -
Proper
bolt type
(Flange
thickness:
10mm)
Straight - - SBBM SBBMH SBBD SBBDH - -
Tapered - - SBGM SBGMH SBGD SBGDH - -
Normal
bolt type
(Flange
thickness:
15mm)
Straight - - SBBH SBBHH SBBT SBBTH SBBX SBGX
Tapered - - SBGH SBGHH SBGT SBGTH SBBXH SBGXH
Normal
bolt type
(Flange
thickness:
20mm)
Straight SBBF SBBFH SBBR SBBRH - - - -
Tapered SBGF SBGFH SBGR SBGRH - - - -
Normal
bolt type
(Flange
thickness:
8mm)
Straight - - SBBZ
SBBZS
- SBBV
SBBVS
- - -
Tapered - - SBBZT
SBBZTS
- SBBVT
SBBVTS
- - -

(Shoulder type)
Category Type Material S45C HPM1 comparable SKD61 DC53
Type Normal String
eliminator
type
Normal String
eliminator
type
Normal String
eliminator
type
Normal String
eliminator
type
Shoulder type Straight - - SBSM SBSMH SBSD SBSDH SBSS SBSSH
Tapered - - SBTM SBTMH SBTD SBTDH SBTS SBTSH
Old JIS
B type
Straight SJBC SJBCH SJBM SJBMH SJBD SJBDH - -
Tapered SJTC SJTCH SJTM SJTMH SJTD SJTDH - -

(Electroforming Sprue Bushings·Normal bolt Type) PDF (112KB)
Category Type Type Part Number
Normal
bolt type
(Flange thickness:10mm)
Straight SBBN
Tapered SBBNT
Normal
bolt type
(Flange thickness:15mm)
Straight SBBE
Tapered SBBET
Normal
bolt type
(Flange thickness:20mm)
Straight SBBL
Tapered SBBLT
Old JIS A type Straight SBJE
Tapered SBJET

(Electroforming Sprue Bushings·Shoulder Type)
Category Type Type Part Number
Shoulder
type
Straight SBSN
Tapered SBSNT
Old JIS
B type
Straight SBJN
Tapered SBJNT

(Extension nozzle type)
Category Type Material HPM1 comparable SKD61
Type Normal Normal
Locator
Presser foot
Tapered SXHM SXHD
Small
nozzle type
Straight SXM SXD
Tapered SXTM SXTD
Large
nozzle type
Straight SXDM SXDD
Tapered SXGM SXGD
Special
nozzle type
Straight SXCM SXCD
Tapered SXSM SXSD

(Press fit type)
Category Type Material SKD61
Type Normal
Press
fit type
Straight SBBW
Tapered SBGW

(Cooling sprue bushings)
Category Type Material SUS420J2
comparable
Type
Normal
bolt type
(Flange thickness:10mm)
Normal SBCK
SBCS
String
eliminator type
SBCKH
SBCSH

List for Sprue Lock Bushings

Type Material SKD61
Type B selection type B disignation type
Head type SLBH SLBF
Straight type SLBS -

List for Locating Rings

Appl.sprue bushings Category
Material S45C
Standard type Large
diameter type
JIS type Runner lock pin presser type Reversible type Locating
ring adapter
For bolt type LRBS
LRBF
LRBD
LRK LRJS LRJST LRBW LAR
For
shoulder type
LRSS
LRSD
- -

Materials of Locating Ring and Sprue Bushings

Material Hardness Remarks
S45C (Annealed steel) -
HPM1 comparable 37~43HRC Prehardened
steel by aging
SKD61 48~52HRC Quench-and-temper
Tempering: 550°C or higher
DC53 58~62HRC Quench-and-temper
Tempering: 200°C or higher
Nickel alloy
(Electro forming)
(Inside:0.5mm) 55~60HRC
(Outside) 38~42HRC
Details (PDF (112KB))

Example of Combination(Normal Bolt stopper type)

Part Number For two-plate mold For three-plate mold
Locating ring
LRBS
LRBF
Sprue Bushings
SBB□
SBG□
Locating ring
LRBS
LRBF
Sprue Bushings
SBB□
SBG□
Locating ring
LRBD
Sprue Bushings
SBB□
SBG□
Locating ring
LRK
Sprue Bushings
SBB□
SBG□
Locating ring
LRK
Sprue Bushings
SBB□
SBG□

Example of Combination(Old JIS Type)

Part Number For two-plate mold For three-plate mold
Locating ring
LRJS
Sprue Bushings
SJA□
SJG□
Locating ring
LRJS
Sprue Bushings
SJB□
SJT□

Example of Combination(Shoulder Type)

Part Number For two-plate mold For three-plate mold
Locating ring
LRSS
Sprue Bushings
SBS□
SBT□
Locating ring
LRSD
Sprue Bushings
SBS□
SBT□

About Steel Sprue Bushings

Concentricity·Squareness

End and side faces of sprue bushings made of SKD61 or DC53 may be colored by heat treatment at the time of refining.

About the head of sprue bushings
Relief processed in the flange neck part of sprue bushing(3mm range).
Because R is large than the relief depth, do chamfering toinstallation holes.
(Refer to each page for details, please.)

GUIDE FOR HOT RUNNER NOZZLE    Available only in Japan

Hot runner nozzle is a simple hot runner unit obtained by heating the conventional nozzle with a heater, melting the resin and carrying out the continuous injection molding process.
The gate set at the tip of hot runner nozzle can be opened/closed according to the injection pressure.

HRF-PHS
HRH-PHS
HRT-TK(K type)
HRT-TJ(J type)

Installation example    Available only in Japan

Part Number For two-plate mold
Locating Ring LRSS
Hot runner nozzle HRU-BH

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