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Spring Plungers（Tip Surface Treatment：Black Oxide）

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.

23 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

On Sale Till 31/03/2025

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 5.48-
	Special Price
Days to Ship:	Same day or more

On Sale Till 31/03/2025

Short Spring Plungers - Steel

MISUMI

Volume Discount

CAD ：: 2D / 3D

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

On Sale Till 31/03/2025

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-
	Special Price
Days to Ship:	Same day or more

On Sale Till 31/03/2025

Spring Plunger (ZP, PL, PLH, ZN, PLN)

IMAO CORPORATION

Classic spring plungers. Available in three types of load for different screw diameters (excluding certain diameters). Available in a variety of materials.

CAD ：: 2D / 3D

Standard Price:	SGD 7.72-
	Special Price
Days to Ship:	Same day or more

On Sale Till 31/03/2025

Short Spring Plunger (ZSP, SPL, SPLH)

IMAO CORPORATION

It is a short type spring plunger.
[Features]
·Its short overall length makes it convenient for use in small spaces.
·Three different loads are available for each thread diameter (except some).
·Markings are attached to the bottom of the product for product identification.
·ZSP: 1 line SPLH: 2 lines.
·Heat-Resistant Temperature: 100°C .
[Applications]
·Positioning of jig replacement.
·Preliminary guidelines on the index head, and ejecting press workpieces.

CAD ：: 2D / 3D

Standard Price:	SGD 4.40-
	Special Price
Days to Ship:	Same day 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 18.78-
Days to Ship:	4 Day(s) or more

On Sale Till 31/03/2025

Spring Plungers - Tapped Tip

MISUMI

[Features]It can be used with a stopper pin or urethane pusher attached to the tip.

Volume Discount

CAD ：: 2D / 3D

Standard Price:	SGD 13.14-
	Special Price
Days to Ship:	Same day or more

Spring Plunger (with Long Lock) (LPL, LPLN)

IMAO CORPORATION

Self-locking type spring plungers. Plastic (LPLN) nose types are also available. Available in three types of load for different screw diameters (excluding certain diameters). Available in a variety of materials.

CAD ：: 2D / 3D

Standard Price:	SGD 13.32-
Days to Ship:	6 Day(s) or more

Short Plunger SPL

KONISHI

A spring is built in the screw, and the spring force causes the ball to move in and out. It can be used for indexing, positioning, and extrusion of jigs. Since the thread diameters range from M4 to M24, please select the required size.

CAD ：: 2D

Standard Price:	SGD 3.95-
Days to Ship:	4 Day(s) or more

A Type Spring Pin Plunger

NABEYA

The perfect plunger for positioning, fixing, pressing, pushing against, and pushing apart.

CAD ：: 2D

Standard Price:	SGD 4.08-
Days to Ship:	4 Day(s) or more

Short Stroke Plungers (Heavy Load) SP-H

KONISHI

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

CAD ：: 2D

Standard Price:	SGD 9.71-
Days to Ship:	4 Day(s) 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

Spring Plunger - PSF/PSN

NABEYA BI-TECH

[Features]
· Both of the steel and stainless steel plungers are available with plastic pins.
· PsF: Light load, steel plunger.
· PSF-SN: Light load, full stainless steel plunger.
· PSN: Light load, steel plunger with plastic pin.
· PSF-KN: Light load, stainless steel plunger with plastic pin.
· PSF-ss: Heavy load, steel plunger.

CAD ：: 2D / 3D

Standard Price:	SGD 7.64-
Days to Ship:	4 Day(s) or more

Spring Pin Plunger B Type

NABEYA

[Features]This is a plunger suitable for positioning, fixing, pressing and releasing.

CAD ：: 2D

Standard Price:	SGD 3.27-
Days to Ship:	4 Day(s) or more

On Sale Till 31/03/2025

Small Plunger PCF

NABEYA BI-TECH

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

CAD ：: 2D / 3D

Standard Price:	SGD 4.36-
	Special Price
Days to Ship:	Same day or more

On Sale Till 31/03/2025

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-
	Special Price
Days to Ship:	Same day or more

Long Stroke Plungers (Light Load) HSP-L

KONISHI

Can be used as a press mold component for oil breakers, knockouts, positioners, and so on. Anti-looseness treatment is applied to the screw part.

CAD ：: 2D

Standard Price:	SGD 58.68
Days to Ship:	8 Day(s) or more

Spring Pin Plunger C Type

NABEYA

[Features]
· For the PPC-J, the hexagon socket set screw is glossy.
· Optimal plunger for positioning, fixing, pressing, and press releasing.

CAD ：: 2D

Standard Price:	SGD 5.71-
Days to Ship:	4 Day(s) or more

Short-Stroke Plunger SP

KONISHI

[Features]
・ A spring is built in the screw, and the pin will come in and out with the force of the spring
・ It can be used for indexing, positioning and extrusion of jigs
・ Since the thread diameters range from M4 to M24, please select the required size

CAD ：: 2D

Standard Price:	SGD 7.05-
Days to Ship:	4 Day(s) or more

On Sale Till 31/03/2025

Short Spring Plunger (with Long Lock) (LSPL / LSPL / LSPLH)

IMAO CORPORATION

Self-locking type short plungers. Available in three types of load for different screw diameters (excluding certain diameters).

[Features]
· The overall length is short for convenient use in confined spaces.
· Equipped with a self-locking (long-lock) feature.
· Strongly vibration resistant with a high extraction moment.
· Enables precise positioning.
· The self-locking feature is effective for up to approx. 20 install/uninstall cycles.
· The rear surfaces are marked for product identification.

CAD ：: 2D / 3D

Standard Price:	SGD 10.59-
	Special Price
Days to Ship:	Same day or more

Long Stroke Plungers (Heavy Load) LSP-H

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 16.82-
Days to Ship:	5 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

Long Stroke Plungers (Heavy Load) HSP-H

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 151.65
Days to Ship:	23 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

	On Sale Till 31/03/2025	On Sale Till 31/03/2025	On Sale Till 31/03/2025	On Sale Till 31/03/2025	On Sale Till 31/03/2025		On Sale Till 31/03/2025								On Sale Till 31/03/2025	On Sale Till 31/03/2025				On Sale Till 31/03/2025
Brand	MISUMI	MISUMI	NABEYA BI-TECH	IMAO CORPORATION	IMAO CORPORATION	NABEYA BI-TECH	MISUMI	IMAO CORPORATION	KONISHI	NABEYA	KONISHI	MISUMI	NABEYA BI-TECH	NABEYA	NABEYA BI-TECH	NABEYA BI-TECH	KONISHI	NABEYA	KONISHI	IMAO CORPORATION	KONISHI	MISUMI	KONISHI
Product Series	Spring Plungers - Steel	Short Spring Plungers - Steel	Short Stroke Plunger - PSP	Spring Plunger (ZP, PL, PLH, ZN, PLN)	Short Spring Plunger (ZSP, SPL, SPLH)	Long Stroke Plunger PLP	Spring Plungers - Tapped Tip	Spring Plunger (with Long Lock) (LPL, LPLN)	Short Plunger SPL	A Type Spring Pin Plunger	Short Stroke Plungers (Heavy Load) SP-H	Spring Plungers - With Hex Nose	Spring Plunger - PSF/PSN	Spring Pin Plunger B Type	Small Plunger PCF	Small Plunger PSS	Long Stroke Plungers (Light Load) HSP-L	Spring Pin Plunger C Type	Short-Stroke Plunger SP	Short Spring Plunger (with Long Lock) (LSPL / LSPL / LSPLH)	Long Stroke Plungers (Heavy Load) LSP-H	Spring Plungers - Flanged	Long Stroke Plungers (Heavy Load) HSP-H
CAD	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D	2D	2D	2D / 3D	2D / 3D	2D	2D / 3D	2D / 3D	2D	2D	2D	2D / 3D	2D	2D / 3D	2D
Days to Ship	Same day or more	Same day or more	Same day or more	Same day or more	Same day or more	4 Day(s) or more	Same day or more	6 Day(s) 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	4 Day(s) or more	Same day or more	Same day or more	8 Day(s) or more	4 Day(s) or more	4 Day(s) or more	Same day or more	5 Day(s) or more	4 Day(s) or more	23 Day(s) or more
Outer Dia. M(mm)	3 ～ 30	3 ～ 16	3 ～ 12	3 ～ 24	4 ～ 20	12 ～ 30	12 ～ 20	5 ～ 16	4 ～ 24	6 ～ 12	3 ～ 12	10 ～ 16	3 ～ 24	4 ～ 12	4 ～ 24	4 ～ 16	10	3 ～ 12	3 ～ 24	4 ～ 16	12 ～ 30	3 ～ 16	16
Stroke S(mm)	1.5 ～ 80	1 ～ 4.5	1.5 ～ 5	1.5 ～ 10	1.5 ～ 6.5	10 ～ 30	15 ～ 30	2.3 ～ 5	1.5 ～ 8	2 ～ 3.5	1.5 ～ 5	5 ～ 20	1 ～ 10	1.5 ～ 3.5	1.5 ～ 8	1.2 ～ 4.5	8	1 ～ 4	1 ～ 10	1.5 ～ 4.5	10 ～ 30	1.5 ～ 40	40
Tip Material	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	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	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	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 / 50.01~100	0.01~50	0.01~50	0.01~50 / 50.01~100	0.01~50 / 50.01~100	0.01~50	0.01~50	0.01~50 / 50.01~100	0.01~50 / 50.01~100	0.01~50	0.01~50	0.01~50	0.01~50 / 50.01~100	0.01~50	0.01~50 / 50.01~100	0.01~50	0.01~50	0.01~50	0.01~50 / 50.01~100	0.01~50 / 50.01~100	0.01~50	0.01~50	0.01~50
Lock	Not Provided / Provided	Not Provided	Provided	Not Provided	Not Provided	Provided	Not Provided	Provided	Not Provided	Not Provided	Provided	Provided	Not Provided	Not Provided	Not Provided	Provided	Provided	Not Provided	Not Provided	Provided	Provided	Provided	Provided
Tip Heat Treatment	Carburized	Carburized	Hardening	Carburized	Carburized	Hardening	Carburized	Carburized	Not Provided	Carburized	Not Provided	Carburized	Hardening	Carburized	Hardening	Hardening	Not Provided	Carburized	Not Provided	Carburized	Not Provided	Carburized	Not Provided
Screw Type of Pin Plunger	Spherical	Short Stroke	Spherical / With Hex Socket / Short Stroke	Spherical	Spherical	Spherical / With Hex Socket / Long Stroke	Tapped Tip	Spherical	Spherical / Short Stroke	With Hex Socket	Spherical / With Hex Socket / Short Stroke	With Hex Nose	Spherical / With Hex Socket	Spherical	Spherical	Spherical / With Hex Socket	Spherical / With Hex Socket / Long Stroke	With Hex Socket	Spherical / With Hex Socket / Short Stroke	Spherical	Spherical / With Hex Socket / Long Stroke	Flanged	Spherical / With Hex Socket / Long Stroke
Wrench Hole Shape	Hex	Hex	Hex	Hex	Negative	Hex	Hex	Hex	Negative	Hex	Hex	Hex	Hex	Negative	Negative	Hex	Hex	Hex	Hex	Negative	Hex	Hex	Hex
Main Body Surface Treatment	Black Oxide / Electroless Nickel Plating	Black Oxide / Electroless Nickel Plating	Black Oxide / Electroless Nickel Plating	Black Oxide	Black Oxide	Black Oxide	Electroless Nickel Plating	Black Oxide	Black Oxide	Black Oxide	Black Oxide	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	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide	Black Oxide

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

Wrench Hole Shape
- Negative
- Hex
Clear

Main Body Surface Treatment
- Not Provided
- Black Oxide
- Electroless Nickel Plating
- Trivalent Chromate
Clear

Tip Surface Treatment
- Not Provided
- Black Oxide
- Trivalent Chromate
- Electroless Nickel Plating
- Nitriding Treatment
- Zinc Plating
Clear

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Spring Plungers（Tip Surface Treatment：Black Oxide）

Configure

Specification/Dimensions

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

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