RETAINERS

Type	Shape					Locating method	Mounting method
	For round punch / die	Type	For shaped punch	Type	Retainer body thickness
Heavy duty type for high-tensile steel
End retainers for NC machining		HDP-AP HDPAR BPC HDP-AN		HDP-FP HDPFR BPC HDP-FN	30	Punch locating is performed by means of the two dowel holes in the retainer.	Bolt is inserted from the punch tip side, fastening the retainer to the die.
End retainers for NC machining -For heavy load-		HAP-AP HAPAR BPC HAP-AN		HAP-FP HAPFR BPC HAP-FN	35	Punch locating is performed by means of the two dowel holes in the retainer.
Square retainers		HSR-AP HMPSR MPSP HSR-AN		HSR-FP HMPDR MPSP HSR-FN	30	Punch locating is performed by means of the two dowel holes in the retainer.
Square retainers -For heavy load-		HSA-AP HASAR MPSP HSA-AN		HSA-FP HASAR MPSP HSR-AN	35
Single fixing-bolt type
End retainers for NC machining		SP-APS SPARS BPST SP-ASN		SP-FPS SPFRS BPST SP-FSN	25	Punch locating is performed by means of the two dowel holes in the retainer.	Bolt is inserted from the punch tip side, fastening the retainer to the die.
End retainer for edge-matching machining		TP-APS TPARS BPST TP-ASN		TP-FPS TPFRS BPST TP-FSN	25	Punch locating is performed by machining a matching hole at the retainer dowel hole after the edges of the punch and die have been matched. (Note 1)
Double fixing-bolts type
End retainers for NC machining		DP-AP DP-AD DPAR BPC BDC DP-AN		DP-FP DP-FD DPFR BPC BDC DP-FN	30	Punch locating is performed by means of the two dowel holes in the retainer.	Bolt is inserted from the punch tip side, fastening the retainer to the die.
End retainer for edge-matching machining		CP-AP CP-AD CPAR BPC BDC CP-AN		CP-FP CP-FD CPFR BPC BDC CP-FN	30	Punch locating is performed by machining a matching hole at the retainer dowel hole after the edges of the punch and die have been matched. (Note 1)
End retainers for NC machining -For heavy load-		AP-AP APAR BPC AP-AN		AP-FP APFR BPC AP-FN	30	Punch locating is performed by means of the two dowel holes in the retainer.
End retainers for edge-matching machining -For heavy load-		FP-AP APAR BPC AP-AN		FP-FP FPFR BPC FP-FN	30	Punch locating is performed by machining a matching hole at the retainer dowel hole after the edges of the punch and die have been matched. (Note 1)
Triangle type
End retainers for NC machining		25CRN-AP 25CRN-AD 25CRNAR CRNBP CRNBD 25CRN-A		25CRN-FP 25CRN-FD 25CRNFR CRNBP CRNBD 25CRN-F	25 32	Punch locating is performed by means of the two dowel holes in the retainer.	Bolt is inserted from the punch tip side, fastening the retainer to the die.
		CRN-AP CRN-AD CRNAR CRNBP CRNBD CRN-A		CRN-FP CRN-FD CRNFR CRNBP CRNBD CRN-F
Square type
Square retainers		SR-AP SR-AD MPSR MPSP MDSP SR-AN		SR-FP SR-FD MPDR MPSP MDSP SR-FN	30	Punch locating is performed by means of the two dowel holes in the retainer.	Bolt is inserted from the punch tip side, fastening the retainer to the die.
Square retainers -For heavy load-		SA-AP ASAR MPSP SA-AN		SA-FP ASFR MPSP SA-FN

(Note1) Matching-hole machining: Dowel hole machining without using NC is performed by installing the retainer with punch mounted onto the upper die, aligning the punch and die edges, then using a drill to create a hole while the retainer is attached. A reamer is then used to simultaneously machine the retainer and upper die.
(Note 2) Correct use of end retainers and square retainers
With a square retainer, the punch is inserted at the center of the shape. As a result, this type provides superior balance. However there are many cases in which the holes that will actually be machined in the product are close together and a square retainer cannot be used due to space problems. End retainers are used in such cases when there is insufficient mounting space.

Select retainers	Compact air type	Standard air type	Standard manual type	Air type for heavy load
Type	SLC-EA SLC-FA SLC-SEA SLC-SFA	SLS-EA SLS-FA SLS-SEA SLS-SFA	SLS-EH SLS-FH	SLA-EA SLA-FA SLA-SEA SLA-SFA
Stroke	ST=8mm	ST=10mm
Shaft dia.	D=10•13•16•20	D=10•13•16•20•25•32		D=10•13•16•20