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Spring Plungers（Tip Surface Treatment：Trivalent Chromate）

A spring plunger is a mechanical device consisting of a pin or plunger enclosed within a housing, with a spring providing force to extend or retract the plunger. When not acted upon, the spring pushes the plunger outward from the housing. Applying external force compresses the spring, allowing the plunger to retract. Once the force is removed, the spring pushes the plunger back out. Some spring plungers have locking mechanisms for added stability. They are widely used in manufacturing for precise positioning, retaining objects in place, aligning components, and providing adjustable force. They can also serve as safety devices by giving feedback or triggering switches. In essence, spring plungers offer a simple yet effective solution for controlling motion and force in various applications. To select a Misumi spring plunger, consult the product specifications for factors such as size, material, spring force, and any additional features required for your specific application needs. Then, use MISUMI's online catalog or contact direct our MISUMI for assistance.

12 items

: 30; 45; 60

Days to Ship	All Same day 4 Day(s) or Less 5 Day(s) or Less 6 Day(s) or Less 7 Day(s) or Less 8 Day(s) or Less 9 Day(s) or Less 10 Day(s) or Less 11 Day(s) or Less 12 Day(s) or Less

Spring Plungers - Steel

MISUMI

Products with loosening prevention have been treated with loosening prevention treatment (epoxy resin adhesive) in advance.
Workability is improved with no need for thread locking agents! Achieved reduced screw locking agent application work and stable quality of loosening prevention.

[Features that prevent loosening]
- When screwed in, the microcapsules are destroyed and hardening begins.
・Excellent chemical resistance and heat resistance.

Volume Discount

CAD ：: 2D / 3D

Standard Price:	SGD 5.55-
Days to Ship:	Same day or more

Short Spring Plungers - Steel

MISUMI

Volume Discount

CAD ：: 2D / 3D

Standard Price:	SGD 4.88-
Days to Ship:	Same day or more

Spring Plungers - Flat Tip

MISUMI

[Features]Spring plunger with a flat tip. Spring material: SWP−B.

Volume Discount

CAD ：: 2D / 3D

Standard Price:	SGD 6.74-
Days to Ship:	Same day or more

Short Stroke Plunger - PSP

NABEYA BI-TECH

[Features]
· With nylon welding to prevent loosening (except for M3 and M4).
· PSP-N is equipped with plastic pins.
· Does not scratch the workpiece.
· Use the dedicated plunger wrench (PPW) for pin mounting and removal.
· Use abrasion-resistant ball buttons (BB) on the receiving end.
· The manufacturer also offers custom products made to unique specifications, including dimensions, loads, and materials, etc.

CAD ：: 2D / 3D

Standard Price:	SGD 7.82-
Days to Ship:	Same day or more

Spring Plungers - With Hex Nose

MISUMI

Volume Discount

CAD ：: 2D / 3D

Standard Price:	SGD 9.47-
Days to Ship:	4 Day(s) or more

Small Plunger PCF

NABEYA BI-TECH

Light-load and heavy-load types available in steel and stainless steel.

CAD ：: 2D / 3D

Standard Price:	SGD 4.50-
Days to Ship:	4 Day(s) or more

Long Stroke Plunger PLP

NABEYA BI-TECH

Used for oil breakers, knockouts, and positioners. Includes anti-loosening nylon lock.

CAD ：: 2D / 3D

Standard Price:	SGD 19.83-
Days to Ship:	4 Day(s) or more

Small Plunger PSS

NABEYA BI-TECH

Stainless steel for high resistance to corrosion/heat.

[Features]
- PSS-2: Made of steel; light load.
- PSS-1: Made of steel, heavy load.
- PSSS-1: Made of stainless steel, heavy load.
- PSSS-3: Made of stainless steel; super-heavy load.
- The PSSS-1 and PSSS-3 are made entirely of stainless steel.
- Excellent in cutting and heat resistance.
- The PSS-2 and the PSS-1 are equipped with a nylon lock (except for M4).
- Use a locking service with the PSSS-1 and PSSS-3.
- Use the ball button BB with improved abrasion resistance for the receiving side.

CAD ：: 2D / 3D

Standard Price:	SGD 4.86-
Days to Ship:	4 Day(s) or more

Spring Plungers - Flanged

MISUMI

Volume Discount

CAD ：: 2D / 3D

Standard Price:	SGD 6.98-
Days to Ship:	4 Day(s) or more

Spring Plungers - Body with Hexagon Socket Hole

MISUMI

As it can be fixed with a hex key from the top, no dedicated wrench is required.

Volume Discount

CAD ：: 2D / 3D

Standard Price:	SGD 9.43-
Days to Ship:	Same day or more

Short Stroke Plungers (Light Load) SP-S

KONISHI

This is a light duty type of short spring plunger. Compatible wrenches for SP-3-H and SP-4-H are not available.

CAD ：: 2D

Standard Price:	SGD 9.65-
Days to Ship:	5 Day(s) or more

Long Stroke Plungers (Light Load) LSP-L

KONISHI

Use as a press mold component for oil breakers, knockouts, positioners, and so on. Anti-looseness treatment (ALOK) is applied to the screw part.

CAD ：: 2D

Standard Price:	SGD 19.30-
Days to Ship:	5 Day(s) or more


Brand
Product Series
CAD
Days to Ship
Outer Dia. M(mm)
Stroke S(mm)
Tip Material
Body Material
Mounting Method
Initial Load (Range)(N)
Lock
Tip Heat Treatment
Screw Type of Pin Plunger
Wrench Hole Shape
Main Body Surface Treatment
Tip Surface Treatment


Brand	MISUMI	MISUMI	MISUMI	NABEYA BI-TECH	MISUMI	NABEYA BI-TECH	NABEYA BI-TECH	NABEYA BI-TECH	MISUMI	MISUMI	KONISHI	KONISHI
Product Series	Spring Plungers - Steel	Short Spring Plungers - Steel	Spring Plungers - Flat Tip	Short Stroke Plunger - PSP	Spring Plungers - With Hex Nose	Small Plunger PCF	Long Stroke Plunger PLP	Small Plunger PSS	Spring Plungers - Flanged	Spring Plungers - Body with Hexagon Socket Hole	Short Stroke Plungers (Light Load) SP-S	Long Stroke Plungers (Light Load) LSP-L
CAD	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D	2D
Days to Ship	Same day or more	Same day or more	Same day or more	Same day or more	4 Day(s) or more	4 Day(s) or more	4 Day(s) or more	4 Day(s) or more	4 Day(s) or more	Same day or more	5 Day(s) or more	5 Day(s) or more
Outer Dia. M(mm)	3 ～ 16	3 ～ 16	5 ～ 12	3 ～ 12	10 ～ 16	6 ～ 24	16 ～ 30	4 ～ 16	3 ～ 16	8 ～ 12	5 ～ 12	16 ～ 30
Stroke S(mm)	1.5 ～ 20	1 ～ 4.5	3 ～ 10	1.5 ～ 5	5 ～ 20	2 ～ 8	10 ～ 30	1.2 ～ 4.5	1.5 ～ 40	3 ～ 10	3 ～ 5	10 ～ 30
Tip Material	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel
Body Material	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel
Mounting Method	Screw-In	Screw-In	Screw-In	Screw-In	Screw-In	Screw-In	Screw-In	Screw-In	Screw-In	Screw-In	Screw-In	Screw-In
Initial Load (Range)(N)	0.01~50	0.01~50	0.01~50	0.01~50	0.01~50	0.01~50 / 50.01~100	0.01~50	0.01~50	0.01~50	0.01~50	0.01~50	0.01~50
Lock	Not Provided / Provided	Not Provided	Provided	Provided	Provided	Not Provided	Provided	Provided	Provided	Provided	Provided	Provided
Tip Heat Treatment	Carburized	Carburized	Carburized	Hardening	Carburized	Hardening	Hardening	Hardening	Carburized	Carburized	Not Provided	Not Provided
Screw Type of Pin Plunger	Spherical	Short Stroke	Flat	Spherical / With Hex Socket / Short Stroke	With Hex Nose	Spherical	Spherical / With Hex Socket / Long Stroke	Spherical / With Hex Socket	Flanged	With Hex Socket	Spherical / With Hex Socket / Short Stroke	Spherical / With Hex Socket / Long Stroke
Wrench Hole Shape	Hex	Hex	Hex	Hex	Hex	Negative	Hex	Hex	Hex	Hex	Hex	Hex
Main Body Surface Treatment	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide
Tip Surface Treatment	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate	Trivalent Chromate

Configure

Specification/Dimensions

Outer Dia. M(mm)
1.5

2

3

4

5

6

8

10

12

16

20

24

30
Drawing

Clear

Stroke S(mm)
1

1.2

1.5

2

2.3

2.5

3

3.5

4

4.5

5

6

6.5

7

8

9

10

12

15

20

30

40

50

60

70

80
Drawing

Clear

Tip Material
- Steel
- Stainless Steel
- Plastic
Clear

Body Material
- Steel
- Stainless Steel
Clear

Mounting Method
- Screw-In
- Press Fit
Clear

Initial Load (Range)(N)
- 0.01~50
- 50.01~100
Clear

Lock
- Not Provided
- Provided
Clear

Tip Heat Treatment
- Not Provided
- Hardening
- Carburized
Clear

Screw Type of Pin Plunger
- Flat
- Spherical
- Taper R
- Flanged
- Tapped Tip
- With Hex Nose
- With Hex Socket
- Short Stroke
- Long Stroke
Images

Clear