GUIDE FOR SPRUE BUSHINGS AND LOCATING RINGS

(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	-

• Ecology Sprue Bushings-Guide- PDF (143KB)
• Ecology Sprue Bushings-Examination results- PDF (165KB)

(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

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

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	-			-

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))

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□

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

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

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.)

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)

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