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Spring Plungers Stainless Steel, Short Stroke

Volume Discount

Check FAQ of this product (3 items)

MISUMI

MiSUMi Economy

MISUMI

RoHS

Part Number

Configured Part Number is shown.

Drawing/Specifications
3D Preview
Part Numbers

Product Overview

♢ 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.

Dimensional Drawing

Material Specification

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

Specification Table

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)
Type	O.D. M (Coarse Thread)						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	10	2	2	2	5	4	12
	5	2.7	1.5	12	2.5	2.5	2	8	6	24
	6	3.2	1.5	12	3	3	3	10	9	30
	8	4	2	16	3.5	4	4	11	13	45
	10	5	2.5	16	4	5	4	15	19	50

kgf=N×0.101972

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)
Type	O.D. M (Coarse Thread)						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	1.5	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

Product Features

♢ 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.

Example of Use

When pressed down
Usage Method 1

When released
Usage Method 2

Part Number

CAD Data download and 3D preview are not available because the part number has not yet been determined.

*In order to open the CAD Data download and 3D preview screen, the part number must be fixed.
Please confirm the part number from "Specification / Dimension"on the left side, and then perform the CAD Data Download / 3D Preview operation.

CAD Download

: 30; 45; 60

Part Number
C-SPJK3
C-SPJK4
C-SPJK5
C-SPJK6
C-SPJK8
C-SPJK10
C-SPJX4
C-SPJX5
C-SPJX6
C-SPJX8
C-SPJX10
E-LSPJY3
E-LSPJY4
E-LSPJY5
E-LSPJY6
E-LSPJY8
E-LSPJY10
E-LSPJY12
E-LSPJY16
E-LSPRK3
E-LSPRK4
E-LSPRK5
E-LSPRK6
E-LSPRK8
E-LSPRK10
E-LSPRK12
E-LSPRK16
E-LSPRX4
E-LSPRX5
E-LSPRX6
E-LSPRX8
E-LSPRX10
E-LSPRX12
E-LSPRX16
E-LSPRY3
E-LSPRY4
E-LSPRY5
E-LSPRY6
E-LSPRY8
E-LSPRY10
E-LSPRY12
E-LSPRY16
E-LSPRZ3
E-LSPRZ4
E-LSPRZ5
E-LSPRZ6
E-LSPRZ8
E-LSPRZ10
E-LSPRZ12
E-LSPRZ16

Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	Outer Dia. M (mm)	Stroke (S) (mm)	Pin Material	Min. Load (N)	Max. Load (N)	Load Type
MYR 6.13	1 Piece(s)	Available	1 Day(s) or more	3	1	[Stainless Steel] Stainless Steel	1	2	Light load
MYR 6.86	1 Piece(s)	Available	5 Day(s) or more	4	1.2	[Stainless Steel] Stainless Steel	2	5	Light load
MYR 6.86	1 Piece(s)	Available	1 Day(s) or more	5	1.5	[Stainless Steel] Stainless Steel	2	8	Light load
MYR 7.35	1 Piece(s)	Available	1 Day(s) or more	6	1.5	[Stainless Steel] Stainless Steel	3	10	Light load
MYR 7.35	1 Piece(s)	Available	1 Day(s) or more	8	2	[Stainless Steel] Stainless Steel	4	11	Light load
MYR 9.81	1 Piece(s)	Available	5 Day(s) or more	10	2.5	[Stainless Steel] Stainless Steel	4	15	Light load
MYR 6.13	1 Piece(s)	Available	5 Day(s) or more	4	1.2	[Stainless Steel] Stainless Steel	4	12	Ultra heavy load
MYR 6.86	1 Piece(s)	Available	11 Day(s) or more	5	1.5	[Stainless Steel] Stainless Steel	6	24	Ultra heavy load
MYR 7.35	1 Piece(s)	Available	5 Day(s) or more	6	1.5	[Stainless Steel] Stainless Steel	9	30	Ultra heavy load
MYR 8.58	1 Piece(s)	Available	5 Day(s) or more	8	2	[Stainless Steel] Stainless Steel	13	45	Ultra heavy load
MYR 9.81	1 Piece(s)	Available	5 Day(s) or more	10	2.5	[Stainless Steel] Stainless Steel	19	50	Ultra heavy load
MYR 8.40	1 Piece(s)	Available	1 Day(s) or more	3	1	[Stainless Steel] Stainless Steel	0.11	0.49	Ultra Light Load
MYR 7.92	1 Piece(s)	Available	1 Day(s) or more	4	1.2	[Stainless Steel] Stainless Steel	0.51	1.54	Ultra Light Load
MYR 7.92	1 Piece(s)	Available	1 Day(s) or more	5	1.5	[Stainless Steel] Stainless Steel	0.62	2.49	Ultra Light Load
MYR 7.92	1 Piece(s)	Available	1 Day(s) or more	6	1.5	[Stainless Steel] Stainless Steel	0.97	3.06	Ultra Light Load
MYR 8.86	1 Piece(s)	Available	6 Day(s) or more	8	2	[Stainless Steel] Stainless Steel	1.16	3.26	Ultra Light Load
MYR 9.32	1 Piece(s)	Available	6 Day(s) or more	10	2.5	[Stainless Steel] Stainless Steel	1.54	4.76	Ultra Light Load
MYR 11.65	1 Piece(s)	Available	6 Day(s) or more	12	3.5	[Stainless Steel] Stainless Steel	1.81	4.82	Ultra Light Load
MYR 19.42	1 Piece(s)	Available	6 Day(s) or more	16	4.5	[Stainless Steel] Stainless Steel	3.1	9.1	Ultra Light Load
MYR 8.40	1 Piece(s)	Available	6 Day(s) or more	3	1	[Others] Resin	0.5	1.51	Light load
MYR 7.92	1 Piece(s)	Available	1 Day(s) or more	4	1.2	[Others] Resin	1.6	4.8	Light load
MYR 8.40	1 Piece(s)	Available	10 Day(s) or more	5	1.5	[Others] Resin	2	7.9	Light load
MYR 8.86	1 Piece(s)	Available	6 Day(s) or more	6	1.5	[Others] Resin	2.8	9.9	Light load
MYR 9.32	1 Piece(s)	Available	6 Day(s) or more	8	2	[Others] Resin	3.6	10.9	Light load
MYR 10.25	1 Piece(s)	Available	6 Day(s) or more	10	2.5	[Others] Resin	4.2	14.6	Light load
MYR 14.12	1 Piece(s)	Available	6 Day(s) or more	12	3.5	[Others] Resin	4.6	14.8	Light load
MYR 28.24	1 Piece(s)	Available	6 Day(s) or more	16	4.5	[Others] Resin	9.9	29.3	Light load
MYR 7.93	1 Piece(s)	Available	6 Day(s) or more	4	1.2	[Others] Resin	4	11.5	Ultra heavy load
MYR 8.40	1 Piece(s)	Available	6 Day(s) or more	5	1.5	[Others] Resin	6	24.2	Ultra heavy load
MYR 7.76	1 Piece(s)	Available	6 Day(s) or more	6	1.5	[Others] Resin	9.4	29.5	Ultra heavy load
MYR 9.32	1 Piece(s)	Available	1 Day(s) or more	8	2	[Others] Resin	13.5	43.7	Ultra heavy load
MYR 10.25	1 Piece(s)	Available	6 Day(s) or more	10	2.5	[Others] Resin	19.1	53.3	Ultra heavy load
MYR 14.12	1 Piece(s)	Available	6 Day(s) or more	12	3.5	[Others] Resin	24.5	58.8	Ultra heavy load
MYR 28.24	1 Piece(s)	Available	6 Day(s) or more	16	4.5	[Others] Resin	26.6	78.7	Ultra heavy load
MYR 8.40	1 Piece(s)	Available	14 Day(s) or more	3	1	[Others] Resin	0.11	0.49	Ultra Light Load
MYR 7.92	1 Piece(s)	Available	6 Day(s) or more	4	1.2	[Others] Resin	0.51	1.54	Ultra Light Load
MYR 8.40	1 Piece(s)	Available	6 Day(s) or more	5	1.5	[Others] Resin	0.62	2.49	Ultra Light Load
MYR 8.86	1 Piece(s)	Available	6 Day(s) or more	6	1.5	[Others] Resin	0.97	3.06	Ultra Light Load
MYR 9.32	1 Piece(s)	Available	6 Day(s) or more	8	2	[Others] Resin	1.16	3.26	Ultra Light Load
MYR 10.25	1 Piece(s)	Available	6 Day(s) or more	10	2.5	[Others] Resin	1.54	4.76	Ultra Light Load
MYR 14.12	1 Piece(s)	Available	6 Day(s) or more	12	3.5	[Others] Resin	1.81	4.82	Ultra Light Load
MYR 28.24	1 Piece(s)	Available	6 Day(s) or more	16	4.5	[Others] Resin	3.1	9.1	Ultra Light Load
MYR 8.40	1 Piece(s)	Available	1 Day(s) or more	3	1	[Others] Resin	0.8	2	Heavy Load
MYR 7.93	1 Piece(s)	Available	6 Day(s) or more	4	1.2	[Others] Resin	2	9	Heavy Load
MYR 8.40	1 Piece(s)	Available	14 Day(s) or more	5	1.5	[Others] Resin	5.1	14.7	Heavy Load
MYR 8.86	1 Piece(s)	Available	1 Day(s) or more	6	1.5	[Others] Resin	5.5	19.6	Heavy Load
MYR 9.32	1 Piece(s)	Available	6 Day(s) or more	8	2	[Others] Resin	6.1	19.6	Heavy Load
MYR 10.25	1 Piece(s)	Available	6 Day(s) or more	10	2.5	[Others] Resin	9.6	29.4	Heavy Load
MYR 14.12	1 Piece(s)	Available	10 Day(s) or more	12	3.5	[Others] Resin	10.4	29.4	Heavy Load
MYR 18.59	1 Piece(s)	Available	6 Day(s) or more	16	4.5	[Others] Resin	18	58.8	Heavy Load

Basic Information

Body Material	Stainless Steel	Mounting Method	Screw-In	Initial Load (Range)(N)	0.01~50
Thread Locking Treatment	Not Provided	Tip Heat Treatment	Not Provided	Wrench Hole Shape	Hex
Main Body Surface Treatment	Not Provided	Pin Surface Treatment	Not Provided

Configure

50 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

Specification/Dimensions

Outer Dia. M(mm)
3

4

5

6

8

10

12

16
Clear
Stroke (S)(mm)
1

1.2

1.5

2

2.5

3.5

4.5
Clear
Pin Material
- Stainless Steel
  - Stainless Steel
- Others
  - Resin
Clear
Min. Load(N)
0.11

0.5

0.51

0.62

0.8

0.97

1

1.16

1.54

1.6

1.81

2

2.8

3

3.1

3.6

4

4.2

4.6

5.1

5.5

6

6.1

9

9.4

9.6

9.9

10.4

13

13.5

18

19

19.1

24.5

26.6
Clear
Load Type
- Heavy Load
- Light load
- Ultra Light Load
- Ultra heavy load
Clear
type
- C-SPJK
- C-SPJX
- E-LSPJY
- E-LSPRK
- E-LSPRX
- E-LSPRY
- E-LSPRZ
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

1 Day(s) or Less

5 Day(s) or Less

6 Day(s) or Less

10 Day(s) or Less

11 Day(s) or Less

14 Day(s) or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Frequently asked question (FAQ)

Question: What role does a spring plunger play?: Answer: By controlling the screw-in depth for threads, it enables the internal pin to set the preload and perform up and down stroke movement. It is suitable for mechanical devices, fixtures, molds, automated machinery, etc.
Question: What is the meaning of max load and min load?: Answer: It refers to the load of the product. The min load represents the initial load value, and the max load represents the load value at the maximum press-in stroke.
Question: What is the difference between a ball plunger and a spring plunger?: Answer: A ball plunger is headed with a steel ball and its stroke is the displacement of the ball. A spring plunger has a pin-shaped front section and the displacement stroke of the pin is used for such purposes as temporary positioning, mold demoulding and workpiece lifting.

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Spring Plungers Stainless Steel, Short Stroke

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