What role does a ball plunger play?

It specifies the stroke of the front ball and can be used for temporary positioning and indexing of workpieces.

What role does a spring plunger play?

With pin-shaped front section, it can be used to eject workpieces or stoppers.

What is the difference between a ball plunger and a spring plunger?

A 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 and indexing of workpieces.

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Part Number Complete

E-LNPJS3-3

type Outer Dia. M Stroke (S) Pin Material Thread Locking Treatment Main Body Surface Treatment Pin Surface Treatment Min. Load CAD Days to Ship

Specification/Dimensions

type
- E-LPJS
Clear
Outer Dia. M(mm)
3

4

5

6

8

10

12

16

20

24

30
Clear
Stroke (S)(mm)
1.5

2

3

4

5

7

10

15

20

30

40

50

60

70

80
Clear
Pin Material
- Steel
  - Steel
- Others
  - Resin
Clear
Thread Locking Treatment
- Not Provided
- Provided
Clear
Main Body Surface Treatment
- Black Oxide
- Electroless Nickel Plating
Clear
Pin Surface Treatment
- Not Provided
- Black Oxide
- Zinc Plating
Clear
Min. Load(N)
0.05

0.09

0.2

0.3

0.5

0.6

0.7

0.8

0.9

1

1.3

1.4

1.5

1.6

1.7

1.8

1.9

2

2.2

2.5

2.9

3

3.4

3.5

3.9

4.9

5

5.2

5.5

5.9

6.2

6.9

7

7.8

8.8

9.1

9.8

12

13

14

15

16

18

19

20

22

23

24

25

28

29

35

37

44

45

47

50

53
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

10 Day(s) or Less
Clear

Specify Alterations

Spring Plungers Steel Screw (E-LNPJS3-3)

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Brand :

MiSUMi Economy

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Product Overview

Spring Plungers Steel Screw

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	Surface Treatment	Material	Hardness	Surface Treatment	Material
Steel Convex Pin	Ultra Light Load	E-LPJS	1215	Black Oxide	S45C	45~55HRC	Zinc Plating	SWP-B
	Light Load	E-LPJL
	Heavy Load	E-LPJH					Black Oxide
	Ultra Heavy Load	E-LPJX		Nickel plating
Resin Convex Pin	Ultra Light Load	E-LNPJS		Black Oxide	POM	-	_
	Light Load	E-LNPJL
	Heavy Load	E-LNPJH
	Ultra Heavy Load	E-LNPJX		Nickel plating

Specification Table

Spring Plungers Steel Screw

Part Number			d	ℓ	L		B	Ultra Light Load		Light Load		Heavy Load		Ultra Heavy Load
Type	M (Coarse Thread)	S			Ultra Light Load Light Load Heavy Load	Ultra Heavy Load		Load (N)		Load (N)		Load (N)		Load (N)
Type	M (Coarse Thread)	S			Ultra Light Load Light Load Heavy Load	Ultra Heavy Load		min.	max.	min.	max.	min.	max.	min.	max.
(Steel Convex Pin) E-LPJS (Only with ＊ symbol) E-LPJL E-LPJH E-LPJX (Only with ＊ symbol) (Resin Convex Pin) E-LNPJS (Only with ＊ symbol) E-LNPJL(Only with ＊ symbol) E-LNPJH(Only with ＊ symbol) E-LNPJX (Only with ＊ symbol) ℓ dimension in ( ) applies to Ultra Heavy Load.	3	**1.5	1.1	10 (15)	10	15	0.9	0.1	0.3	0.4	1.6	0.9	4.2	2.5	5.1
	3	＊＊3	1.1	15 (20)	15	20	0.9	0.1	0.3	0.3	1	1.1	4.9	2.5	6.8
	4	＊＊2	1.6	15 (24)	15	24	1.3	0.2	0.7	0.9	4.1	1.9	8.7	6.2	15.3
	4	＊＊4	1.6	24	24	24	1.3	0.2	0.7	0.7	2.2	0.3	8.3	4.8	15
	5	＊＊3	2	20 (27)	20	27	1.5	0.7	3	1.5	9.8	2	22.5	11	30.4
	5	＊＊5	2	27 (39)	27	39	1.5	0.7	3	1.6	10.4	2.5	23.4	11.6	31.5
	6	＊＊3	2.5	25 (30)	25	30	2	0.9	3.2	3.4	10.4	12.5	33.8	17.2	46.6
		＊＊5	2.5	30 (26)	30	36	2	0.9	3.2	1.9	9.7	6.2	32.6	16.8	47.4
		10	2.5	30	39	-	2	-	-	1.5	10.9	5	32.7	-	-
	8	＊＊3	3.1	25 (27)	25	27	2.5	0.9	3.3	3.5	9.4	11.7	31.2	28.1	56.9
		＊＊5	3.1	27 (30)	27	35	2.5	0.9	3.3	2.9	9.6	8.3	31.9	10.5	39.9
		10	3.1	30	43	-	2.5	-	-	3.1	11.2	8.4	36.4	-	-
	10	＊＊5	3.8	30	30	35	3	1.9	4.7	2.8	14.1	11.4	51	17	73.7
		＊＊10	3.8	30	43	53	3	1.7	4.7	2.9	14.6	9.5	60.8	13.7	75.5
		15	3.8	30	58	-	3	-	-	3.4	17	7.2	57.3	-	-
	12	＊＊5	5.5	30 (35)	30	43	4	1.5	4.7	3.5	17.1	5.6	41	35.3	107.9
		＊＊10	5.5	35	43	58	4	1.3	5.9	2.5	21.1	5.2	55.9	12.7	107.9
		＊＊15	5.5	35	51	78	4	1.6	5.9	2.3	19.4	5.1	53.6	16.7	140.2
		20	5.5	35	78	-	4	-	-	4.1	22.5	8.7	56.1	-	-
	16	＊＊10	8	35	60	60	5	1.7	12.8	12.1	38	26.5	78	29.6	157.9
		＊＊15	8	35	60	70	5	1.7	12.8	9.7	39.7	14.2	79.4	10	142.2
		＊＊20	8	35	85	90	5	1.7	12.8	8.6	40.1	16.8	80.4	4.3	146.1
		＊30	8	35	125	125	5	-	-	17	38	19.8	81.2	5.2	140.7
		40	8	35	125	-	5			5.5	41.2	7.6	84.3	-	-
		50	8	35	155		5			4.4	48.3	7.5	78.8
		60	8	35	159		5			4.1	49.6	6.4	78.1
		70	8	35	185		5			3.1	55.7	4.3	95
		80	8	35	185		5			2.5	51.3	3.2	103.5
	20	＊15	10	45	60	80	6			14.4	79.4	22.5	147.1	14.5	274.6
		20	10	45	72	-	6			13.9	83.4	23	157.9	-	-
		30	10	45	96		6			13.6	88.3	18.6	154
		40	10	45	120		6			13.4	109.8	26.8	195.1
	24	7	10	45	60		10			27.8	65.9	40.7	127.9
		＊15	10	45	60	84	10			25.5	106.9	46.9	226.5	55.1	375.2
		20	10	45	75	-	10			15.3	101	43.1	224.6	-	-
		30	10	45	100		10			19.1	100	47.8	231.4
		40	10	45	124		10			17.1	98.1	44.1	225.5
	30	15	14	45	66		10			9.3	104.4	32.4	259.9
		20	14	45	78		10			55.2	156.9	72.6	356.5
		30	14	45	100		10			28.4	128.3	41.6	290.3
		40	14	45	123		10			14.7	109.2	44.4	303

Load (N) is “-”, indicating that this series has no corresponding dimensions and specifications

Product Features

·It has complete specifications, which can satisfy the requirements of various sizes, lengths, and loads.
·The body is made of steel material, while the front pin is made of either steel or polyacetal, available in anti-loosening type and none anti-loosening type.
·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.
·The stroke can be fine-tuned correspondingly to the screw-in depth.

Usage Method

When pressed down

When released

: 30; 45; 60

Part Number
E-LNPJS3-3

Part Number	Price	Minimum Order Qty.	Volume Discount	Days to Ship	RoHS	Outer Dia. M (mm)	Stroke (S) (mm)	Pin Material	Thread Locking Treatment	Main Body Surface Treatment	Pin Surface Treatment	Min. Load (N)	Max. Load (N)
	₹ 1,009.00	1 Piece(s)	Available	10 Day(s)	10	3	3	[Others] Resin	Not Provided	Black Oxide	Not Provided	0.09	0.32

Basic Information

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

Please check the type/dimensions/specifications of the part E-LNPJS3-3 in the Spring Plungers Steel Screw series.

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 ball plunger play?: Answer: It specifies the stroke of the front ball and can be used for temporary positioning and indexing of workpieces.
Question: What role does a spring plunger play?: Answer: With pin-shaped front section, it can be used to eject workpieces or stoppers.
Question: What is the difference between a ball plunger and a spring plunger?: Answer: A 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 and indexing of workpieces.

Product variants

Part Number
E-LNPJH12-15
E-LNPJH12-5
E-LNPJH16-10
E-LNPJS4-2
E-LNPJS4-4
E-LNPJS5-3

Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	RoHS	Outer Dia. M (mm)	Stroke (S) (mm)	Pin Material	Thread Locking Treatment	Main Body Surface Treatment	Pin Surface Treatment	Min. Load (N)	Max. Load (N)
₹ 1,136.00	1 Piece(s)	Available	10 Day(s)	10	12	15	[Others] Resin	Provided	Black Oxide	Not Provided	4.9	49
₹ 1,096.00	1 Piece(s)	Available	10 Day(s)	10	12	5	[Others] Resin	Provided	Black Oxide	Not Provided	19	49
₹ 1,203.00	1 Piece(s)	Available	10 Day(s)	10	16	10	[Others] Resin	Provided	Black Oxide	Not Provided	13	78.5
₹ 1,006.00	1 Piece(s)	Available	10 Day(s)	10	4	2	[Others] Resin	Not Provided	Black Oxide	Not Provided	0.2	0.2
₹ 1,010.00	1 Piece(s)	Available	10 Day(s)	10	4	4	[Others] Resin	Not Provided	Black Oxide	Not Provided	0.2	0.02
₹ 1,003.00	1 Piece(s)	Available	10 Day(s)	10	5	3	[Others] Resin	Provided	Black Oxide	Not Provided	0.7	0.7

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