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Spring Plungers（Tip Heat Treatment：Carburized）

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.

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Brand	(8) (0) KONISHI (0) NABEYA (3) NABEYA BI-TECH (0)
CAD	2D 3D
Days to Ship	All Same day 5 Day(s) or Less 6 Day(s) or Less 7 Day(s) or Less 8 Day(s) or Less Others

11 items

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: 30; 45; 60

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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

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
3 ～ 30	1.5 ～ 80	Steel	Steel	Screw-In	0.01~50 / 50.01~100	Not Provided / Provided	Carburized	Spherical	Hex	Black Oxide / Electroless Nickel Plating	Black Oxide / Trivalent Chromate

From: ₹ 278.59
Days to Ship: Same day or more

Same day or more

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Short Spring Plungers - Steel

MISUMI

Volume Discount

CAD ：: 2D / 3D

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
3 ～ 16	1 ～ 4.5	Steel	Steel	Screw-In	0.01~50	Not Provided	Carburized	Short Stroke	Hex	Black Oxide / Electroless Nickel Plating	Black Oxide / Trivalent Chromate

From: ₹ 154.00
Days to Ship: Same day or more

Same day or more

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Spring Plungers - Flat Tip

MISUMI

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

Volume Discount

CAD ：: 2D / 3D

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
5 ～ 12	3 ～ 10	Steel	Steel	Screw-In	0.01~50	Provided	Carburized	Flat	Hex	Black Oxide	Trivalent Chromate

From: ₹ 194.00
Days to Ship: Same day or more

Same day or more

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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

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
12 ～ 20	15 ～ 30	Steel	Steel	Screw-In	0.01~50	Not Provided	Carburized	Tapped Tip	Hex	Electroless Nickel Plating	Black Oxide / Electroless Nickel Plating

From: ₹ 658.48
Days to Ship: Same day or more

Same day or more

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Spring Plungers - With Hex Nose

MISUMI

Volume Discount

CAD ：: 2D / 3D

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
10 ～ 16	5 ～ 20	Steel	Steel	Screw-In	0.01~50	Provided	Carburized	With Hex Nose	Hex	Black Oxide	Black Oxide / Trivalent Chromate

From: ₹ 513.50
Days to Ship: Same day or more

Same day or more

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A Type Spring Pin Plunger

NABEYA

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

CAD ：: 2D

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
6 ～ 12	2 ～ 3.5	Steel	Steel	Screw-In	0.01~50	Not Provided	Carburized	With Hex Socket	Hex	Black Oxide	Black Oxide / Electroless Nickel Plating

From: ₹ 346.33
Days to Ship: Same day or more

Same day or more

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Spring Plungers - Body with Hexagon Socket Hole

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

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
8 ～ 12	3 ～ 10	Steel	Steel	Screw-In	0.01~50	Provided	Carburized	With Hex Socket	Hex	Black Oxide	Trivalent Chromate

From: ₹ 429.00
Days to Ship: Same day or more

Same day or more

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Spring Plungers - For Inclined Surface

MISUMI

Volume Discount

CAD ：: 2D / 3D

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
10 ～ 16	10 ～ 30	Steel	Steel	Screw-In	0.01~50	Provided	Carburized	Spherical	Hex	Black Oxide	Electroless Nickel Plating

From: ₹ 1,062.10
Days to Ship: Same day or more

Same day or more

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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

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
3 ～ 12	1 ～ 4	Steel	Steel	Screw-In	0.01~50	Not Provided	Carburized	With Hex Socket	Hex	Black Oxide	Black Oxide

From: ₹ 480.27
Days to Ship: 5 Day(s) or more

5 Day(s) or more

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Spring Plungers - Flanged

MISUMI

Volume Discount

CAD ：: 2D / 3D

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
3 ～ 16	1.5 ～ 40	Steel	Steel	Screw-In	0.01~50	Provided	Carburized	Flanged	Hex	Black Oxide	Black Oxide / Trivalent Chromate

From: ₹ 379.60
Days to Ship: 6 Day(s) or more

6 Day(s) or more

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Spring Pin Plunger B Type

NABEYA

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

CAD ：: 2D

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
4 ～ 12	1.5 ～ 3.5	Steel	Steel	Screw-In	0.01~50	Not Provided	Carburized	Spherical	Negative	Black Oxide	Black Oxide / Electroless Nickel Plating

From: ₹ 273.62
Days to Ship: 5 Day(s) or more

5 Day(s) or more


Brand
Product Series
CAD
From
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

	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare
Brand	MISUMI	MISUMI	MISUMI	MISUMI	MISUMI	NABEYA	MISUMI	MISUMI	NABEYA	MISUMI	NABEYA
Product Series	Spring Plungers - Steel	Short Spring Plungers - Steel	Spring Plungers - Flat Tip	Spring Plungers - Tapped Tip	Spring Plungers - With Hex Nose	A Type Spring Pin Plunger	Spring Plungers - Body with Hexagon Socket Hole	Spring Plungers - For Inclined Surface	Spring Pin Plunger C Type	Spring Plungers - Flanged	Spring Pin Plunger B Type
CAD	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D / 3D	2D	2D / 3D	2D / 3D	2D	2D / 3D	2D
From	₹ 278.59	₹ 154.00	₹ 194.00	₹ 658.48	₹ 513.50	₹ 346.33	₹ 429.00	₹ 1,062.10	₹ 480.27	₹ 379.60	₹ 273.62
Days to Ship	Same day or more	Same day or more	Same day or more	Same day or more	Same day or more	Same day or more	Same day or more	Same day or more	5 Day(s) or more	6 Day(s) or more	5 Day(s) or more
Outer Dia. M(mm)	3 ～ 30	3 ～ 16	5 ～ 12	12 ～ 20	10 ～ 16	6 ～ 12	8 ～ 12	10 ～ 16	3 ～ 12	3 ～ 16	4 ～ 12
Stroke S(mm)	1.5 ～ 80	1 ～ 4.5	3 ～ 10	15 ～ 30	5 ～ 20	2 ～ 3.5	3 ～ 10	10 ～ 30	1 ～ 4	1.5 ～ 40	1.5 ～ 3.5
Tip Material	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel	Steel
Body Material	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
Initial Load (Range)(N)	0.01~50 / 50.01~100	0.01~50	0.01~50	0.01~50	0.01~50	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	Not Provided	Provided	Not Provided	Provided	Provided	Not Provided	Provided	Not Provided
Tip Heat Treatment	Carburized	Carburized	Carburized	Carburized	Carburized	Carburized	Carburized	Carburized	Carburized	Carburized	Carburized
Screw Type of Pin Plunger	Spherical	Short Stroke	Flat	Tapped Tip	With Hex Nose	With Hex Socket	With Hex Socket	Spherical	With Hex Socket	Flanged	Spherical
Wrench Hole Shape	Hex	Hex	Hex	Hex	Hex	Hex	Hex	Hex	Hex	Hex	Negative
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	Black Oxide	Black Oxide	Black Oxide	Black Oxide
Tip Surface Treatment	Black Oxide / Trivalent Chromate	Black Oxide / Trivalent Chromate	Trivalent Chromate	Black Oxide / Electroless Nickel Plating	Black Oxide / Trivalent Chromate	Black Oxide / Electroless Nickel Plating	Trivalent Chromate	Electroless Nickel Plating	Black Oxide	Black Oxide / Trivalent Chromate	Black Oxide / Electroless Nickel Plating

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

11

12

15

20

30

40

50

60

70

80
Drawing

Clear

Tip Material
- Steel
- Stainless Steel
- Plastic
- Others
Clear

Body Material
- Steel
- Stainless Steel
- Aluminum
Clear

Mounting Method
- Screw-In
- Press Fit
- Screw Clamp
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
- Nickel Plating
- Trivalent Chromate
- Others
Clear

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

Related Categories to Spring Plungers

FAQ Spring Plungers

Question: How do spring plungers contribute to the efficiency of injection molding processes?: Answer: Spring plungers boost injection molding efficiency by securely holding mold components, ensuring precise alignment for consistent results. During setup, they allow quick and effortless adjustment, reducing downtime. Their spring-loaded design maintains component position while enabling easy repositioning, simplifying the process. By streamlining setup and operation, spring plungers enhance productivity in injection molding, benefiting manufacturers by saving time and improving overall efficiency.
Question: What are spring plungers used for?: Answer: Spring plungers have a wide range of applications, especially in manufacturing. Here are some common uses:
Positioning and alignment: Spring plungers can be used to precisely position and align components during assembly.
Retention: They can hold objects in place, like detents in latches or catches in housings.
Ejection: Spring plungers can eject parts from molds or fixtures.
Applying pressure: They can apply a controlled amount of force for tasks like clamping or activating switches.
Question: What is the importance of ball plungers in automation?: Answer: Ball plungers are important in automation because they help things get in the right spot and stay there. Even though they're small, they're super good at making sure parts are in the exact place they need to be. They're used in tools and fixtures to keep stuff secure and move it exactly where it needs to go on the assembly line. Ball plungers are great because they make sure everything runs smoothly and works well, making factories more efficient and products better.
Question: What materials are spring plungers typically made of?: Answer: Spring plungers are commonly made of materials such as stainless steel, carbon steel, brass, and plastic. The choice of material depends on factors like the application requirements, environmental conditions, and desired durability.
Question: What role do locating, positioning, jigs & fixtures play in plunger technology?: Answer: Locating, positioning, jigs, and fixtures are super important in plunger technology. Locating mechanisms make sure plungers and workpieces are in the right spot for machining or assembly, reducing mistakes. Positioning devices control how plungers move, so they go exactly where they're supposed to. Jigs and fixtures hold everything in place securely during machining or assembly, which helps prevent errors and makes things work faster and better. Overall, these parts work together to make plunger technology work smoothly and produce high-quality results.
Question: What are the characteristics of spring plungers with flat tip?: Answer: Spring plungers with flat tips are versatile tools designed for precise positioning and secure holding of components. Their flat tip ensures even pressure distribution, minimizing the risk of damage to surfaces. These plungers provide strong retention force, securely holding components in place. Some models allow for adjusting the spring tension to customize the holding force. Made from durable materials like steel or stainless steel, they offer longevity and resistance to wear. They are easy to install and replace, making setup and maintenance hassle-free.
Question: What are the key considerations when selecting materials for plungers?: Answer: When selecting materials for plungers, consider their strength, durability, and corrosion resistance. Ensure they can withstand operational forces without wearing out quickly. Check if they're resistant to rust and can handle the temperatures they'll encounter. Also, factor in the cost and ease of manufacturing. By evaluating these factors, you can choose materials that meet the needs of your application, providing long-lasting performance without breaking the bank. Ultimately, selecting the right materials ensures reliable and efficient operation of plungers in various industrial settings.

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Spring Plungers（Tip Heat Treatment：Carburized）

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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FAQ Spring Plungers

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