Spring Plungers Stainless Steel, Short Stroke

♢ This series is MISUMI economy series stainless steel spring plunger with coarse threads and mounted from the hexagon socket at the bottom. It is manufactured in China, so its price is reduced significantly, up to 93% less than other similar products.
♢ The spring plunger is also known as the positioning column, ball screw, spring screw, etc. It is a product involving vertical stroke, in which the front pin is pressed till the pin sinks into the body and then the front pin can be ejected through the built-in spring. It can be used in mold release, workpiece lifting and positioning, etc., which can be widely applied in medium and low-precision mechanical devices, fixtures, molds, automation machines, etc.

Load Classification		Type	Body	Pin		Spring
			Material	Material	Hardness	Material
Stainless Steel Convex Pin	Light Load	C－SPJK	SUS304	SUS303	20HRC～	SUS304
	Ultra Heavy Load	C－SPJX

 

Load Classification		Type	Body		Pin		Spring
			Material		Material		Material
Stainless Steel Convex Pin	Ultra Light Load	E－LSPJY	SUS304		SUS303		SUS304
Resin Convex Pin	Utra Light Load	E－LSPRY			POM
	Light Load	E－LSPRK
	Heavy Load	E－LSPRZ
	Ultra Heavy Load	E－LSPRX

 

Part Number		d	Stroke S	L	ℓ (Reference Value)	B	Light Load		Ultra Heavy Load
Type	O.D. M (Coarse Thread)						Load (N)		Load (N)
							min.	max.	min.	max.
C－SPJK (Light Load) C－SPJX (Ultra Heavy Load)	3	1.2	1	10	3	1.5	1	2	－	－
	4	2.1	1.2		2	2	2	5	4	12
	5	2.7	1.5	12	2.5	2.5		8	6	24
	6	3.2			3	3	3	10	9	30
	8	4	2	16	3.5	4	4	11	13	45
	10	5	2.5		4	5		15	19	50

The min. load represents the initial load, and the max. load represents the load at the maximum press-in limit of convex pin.
There is no groove for front end riveting.
No anti-loosening treatment is applied.
C-SPJX (Ultra Heavy Load) is for O.D. M4~M10 only.

Part Number		d	Stroke S	L	ℓ (Reference Value)	B	Ultra Light Load		Light Load		Heavy Load		Ultra Heavy Load
Type	O.D. M (Coarse Thread)						Load (N)		Load (N)		Load (N)		Load (N)
							min.	max.	min.	max.	min.	max.	min.	max.
(Stainless Steel Convex Pin) E－LSPJY (Resin Convex Pin) E－LSPRY E－LSPRK E－LSPRZ E－LSPRX	3	1.2	1	7	1	1.5	0.11	0.49	0.5	1.51	0.8	2	-	-
	4	2.1	1.2	9	1.5	2	0.51	1.54	1.6	4.8	2	9	4	11.5
	5	2.7	1.5	12	2	2.5	0.62	2.49	2	7.9	5.1	14.7	6	24.2
	6	3.2		13	2.5	3	0.97	3.06	2.8	9.9	5.5	19.6	9.4	29.5
	8	4	2	15	2.5	4	1.16	3.26	3.6	10.9	6.1	19.6	13.5	43.7
	10	5	2.5	16	3	5	1.54	4.76	4.2	14.6	9.6	29.4	19.1	53.3
	12	6	3.5	20	3	6	1.81	4.82	4.6	14.8	10.4	29.4	24.5	58.8
	16	8	4.5	22	3	8	3.1	9.1	9.9	29.3	18	58.8	26.6	78.7

♢ It has complete specifications, which can satisfy the requirements of various sizes, lengths, and loads.
♢ It is made of all stainless steel without painting and coloring, so it is suitable for equipment with high requirements on the surface.
♢The front end has a wrench slot, and the bottom end has a hex socket mounting hole, which facilitates installation.
♢ The stroke can be fine-tuned correspondingly to the screw-in depth.
♢ The spring plunger is a product involving vertical stroke. It can be used in mold release, workpiece lifting and positioning, etc., which can be widely applied in medium and low-precision mechanical devices, fixtures, molds, automation machines, etc.