Ejector Pins with Cylindrical Head Dimensions Chart

The dimensions and tolerances of standard ejector pins with cylindrical head which are used in compression and injection moulds and in die casting dies. All dimensions are in millimetres.

Ra 0,8 for hot worked steel. Ra 0,4 for alloyed cold worked steel.

Dimensions of ejector pins with cylindrical head of hot worked steel
D₁g6		D₂ 0/-0.2	L +2/ 0											H 0/-0.05	R +0.2/0
Std. size	Over size	D₂ 0/-0.2	100	125	160	200	250	315	400	500	630	800	1000	H 0/-0.05	R +0.2/0
2		4	X	X	X									2	0.2
	2.2	4		X		X									0.2
2.5		5	X	X	X	X									0.3
	2.7	5		X		X
3		6	X	X	X	X	X	X						3
	3.2	6		X		X		X
3.5		7	X	X	X	X	X	X
	3.7	7		X		X		X
4		8	X	X	X	X	X	X	X
	4.2	8	X		X		X		X
5		10	X	X	X	X	X	X	X	X
	5.2	10		X		X		X		X
6		12	X	X	X	X	X	X	X					5	0.5
	6.2	12	X		X		X		X		X
8		14	X	X	X	X	X	X	X	X	X	X
	8.2	14		X		X		X		X		X
10		16	X	X	X	X	X	X	X	X	X	X	X
	10.2	16	X		X		X		X		X		X
12		18		X	X	X	X	X	X	X	X	X	X	7	0.8
	12.5	18		X	X	X	X	X	X	X	X	X	X
16		22			X	X	X	X	X	X	X	X	X
20		26			X	X	X	X	X	X	X	X	X	8	1
25		32				X	X	X	X	X	X	X	X	10
32		40					X	X	X	X	X	X	X	10

Dimensions of ejector pins with cylindrical head of alloyed cold worked steel
D₁g6		D₂ 0/-0.2	L +2/ 0								H 0/-0.05	R +0.2/0
Std. size	Over size	D₂ 0/-0.2	80	100	125	160	200	250	315	400	H 0/-0.05	R +0.2/0
1.5		3	X	X	X	X					1.5	0.2
	1.6	3	X	X	X	X					1.5
2		4	X	X	X	X	X				2
	2.2	4	X		X		X
2.5		5	X	X	X	X	X					0.3
	2.7	5	X		X		X
3		6	X	X	X	X	X	X			3
	3.2	6		X		X		X
3.5		7	X	X	X	X	X	X
	3.7	7		X		X		X
4		8	X	X	X	X	X	X	X
	4.2	8	X		X		X		X
5		10	X	X	X	X	X	X	X
	5.2	10	X		X		X		X
6		12	X	X	X	X	X	X	X		5	0.5
	6.2	12	X		X		X		X
8		14	X	X	X	X	X	X	X	X
	8.2	14		X		X		X		X
10		16		X	X	X	X	X	X	X
	10.2	16		X		X		X		X
12		18		X	X	X	X	X	X	X	7	0.8
	12.5	18		X	X	X	X	X	X	X
16		22		X	X	X	X	X	X	X
20		26			X	X	X	X	X	X	8	1

Reference:

ISO 6751:1998, Tools for moulding — Ejector pins with cylindrical head