Can the knob plunger withstand radial force?

It is not recommended to bear radial cutting force, as it is prone to product damage and fracture, and generally it can only bear axial force.

What role does a ball plunger play?

It is a mechanical element part that can easily and quickly locate and fix the workpiece by operating the knob or the handle to pull out or insert the pin. Early knob plungers were mainly used for parts used in the angular positioning of indexing devices. In recent years, knob plunger has been more widely used, and become an indispensable mechanical element part of equipment and devices.

What are the characteristics of fine thread type compared to coarse thread type?

Fine thread type is suitable for fine-tuning the ejection amount of the pin. More precise positioning is more possible compared to coarse thread type.

What is the difference between reset type and self-locking type knob plungers?

The self-locking type can lock the front end by turning 90° after pulling out the knob, while keeping the pulled state and turning 90° to release the lock.

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E-SPXRKN12

Screw Dia. M Tip Outer Dia. B Stroke (S) Locking Mechanism Length L Pin Material Pin Surface Treatment Main Body Surface Treatment type Body Material CAD Days to Ship

Specification/Dimensions

Screw Dia. M(mm)
12

16
Clear
Tip Outer Dia. B(Ø)
6

8
Clear
Stroke (S)(mm)
6

7
Clear
Locking Mechanism
- Nose Lock
  - Self-locking Type
- Returning
  - Reset Type
Clear
Length L(mm)
48

56
Clear
Pin Material
- Stainless Steel
  - Stainless Steel
- S45C
Clear
Pin Surface Treatment
- Black Oxide
- Nickel Plating
Clear
Main Body Surface Treatment
- Black Oxide
Clear
type
- E-PXRKN
- E-PXSKN
- E-SPXRKN
- E-SPXSKN
Clear
Body Material
- Steel
  - Steel
- Stainless Steel
  - Stainless Steel
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

Same day
Clear

Specify Alterations

Index Plungers Short Thread Type

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Brand :

MiSUMi Economy

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Product Overview of Indexing Plungers

♢ Knob plunger is also known as indexing pin or Indexing Plungers. The pin can be pulled out or inserted by the operation knob for easy and fast positioning and for fixing mechanical elements of the workpiece.
Suitable for fixture indexing, positioning, stop limit and other occasions.

Product Features of Indexing Plungers

♢ The Economy series Indexing Plungers has been domestic, which greatly reduces the cost, and is up to 85% OFF compared to MISUMI similar existing products.
♢ This series is short thread type, which is suitable for installation in narrow environments. It is not recommended to use on a vibrating or rotating workbench.
♢ The operation method is generally divided into two types: reset and self-locking type.

Dimensional Drawing of Indexing Plungers

Type of Indexing Plungers		Thread	Indexing Plungers	Body		Pin			Spring	(Locknut)
Reset Type	Self-Locking Type	Thread	Material	Material	Surface Treatment	Material	Hardness	Surface Treatment	Material	Material	Surface Treatment
E-PXSKN	E-PXRKN	Fine	A6061 (Black Anodized)	1215	Blackening	45 Steel	45～55HRC	Blackening	SUS304	35 Steel	Blackening
E-SPXSKN	E-SPXRKN	Fine	A6061 (Black Anodized)	SUS303	－	SUS420F	40～50HRC	Nickel Plated	SUS304	SUS304	－

Specifications Overview of Indexing Plungers

Part Number of Indexing Plungers			Thread Pitch	D	D₁	B	S	L	L₁	L₂	L₃	Sw₁	Sw₂	R	Load (N)		Torque (N)
Type		M	Fine												min.	max.	max.
(Reset Type) E-PXSKN E-SPXSKN	(Self-Locking Type) E-PXSKN E-SPXRKN	12	1.5	21	19.6	6	6	48	10	5	6	17	19	3	6	15.5	30
		16		26	21.9	8	7	56	12	6	8	19	24	4	13.7	21	100

kgf＝N× 0.101972

Usage Method of Indexing Plungers

How to operate the reset type and self-locking type
•Reset type of Indexing Plungers
1. The front end is usually protruding.
2. The front end retracts when the knob is pulled out.
3. If the knob is released, the front end will return to the protruding state through the action of the built-in spring force.

•Self-locking type of Indexing Plungers
1. The front end is usually protruding.
2. The front end retracts when the knob is pulled out.
3. If the front end is rotated by 90 while maintaining the pull-out state°, the retraction state of the front end can be locked.
4. To release the locked state, simply rotate 90° while maintaining the pulled-out state.
5. If the Indexing Plungers is released, the front end will return to the protruding state through the action of the built-in spring force.

Example Use of Indexing Plungers

Indexing Plungers is used to prevent malfunction in the example of use of sheet metal bending fixture.

Part Number

Incomplete part number.
Please use left hand selections to complete a part number.

: 30; 45; 60

Part Number
E-SPXRKN12
E-SPXRKN16
E-SPXSKN12
E-SPXSKN16

Price	Minimum Order Qty.	Volume Discount	Days to Ship	RoHS	Screw Dia. M (mm)	Tip Outer Dia. B (Ø)	Stroke (S) (mm)	Locking Mechanism	Body Material	Length L (mm)	Pin Material	Pin Surface Treatment	Main Body Surface Treatment
₹ 778.00	5 Piece(s)	Available	Same day	10	12	6	6	[Nose Lock] Self-locking Type	[Stainless Steel] Stainless Steel	48	[Stainless Steel] Stainless Steel	Nickel Plating	-
₹ 894.00	5 Piece(s)	Available	Same day	10	16	8	7	[Nose Lock] Self-locking Type	[Stainless Steel] Stainless Steel	56	[Stainless Steel] Stainless Steel	Nickel Plating	-
₹ 683.00	5 Piece(s)	Available	Same day	10	12	6	6	[Returning] Reset Type	[Stainless Steel] Stainless Steel	48	[Stainless Steel] Stainless Steel	Nickel Plating	-
₹ 818.00	5 Piece(s)	Available	Same day	10	16	8	7	[Returning] Reset Type	[Stainless Steel] Stainless Steel	56	[Stainless Steel] Stainless Steel	Nickel Plating	-

Dimensional Drawing

Specification Table

Part Number			Thread Pitch	D	D₁	B	S	L	L₁	L₂	L₃	Sw₁	Sw₂	R	Load (N)		Torque (N)
Type		M	Fine												min.	max.	max.
(Reset Type) E-PXSKN E-SPXSKN	(Self-Locking Type) E-PXSKN E-SPXRKN	12	1.5	21	19.6	6	6	48	10	5	6	17	19	3	6	15.5	30
		16		26	21.9	8	7	56	12	6	8	19	24	4	13.7	21	100

kgf＝N× 0.101972

Material Specification

Type		Thread	Knob	Body		Pin			Spring	(Locknut)
Reset Type	Self-Locking Type	Thread	Material	Material	Surface Treatment	Material	Hardness	Surface Treatment	Material	Material	Surface Treatment
E-PXSKN	E-PXRKN	Fine	A6061 (Black Anodized)	1215	Blackening	45 Steel	45～55HRC	Blackening	SUS304	35 Steel	Blackening
E-SPXSKN	E-SPXRKN	Fine	A6061 (Black Anodized)	SUS303	－	SUS420F	40～50HRC	Nickel Plated	SUS304	SUS304	－

Basic Information

Type	Standard Type	Mounting Method	Screw-In	All Stainless	Not Compliant
Knob	Provided	Accessories	With locknut

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

Frequently asked question (FAQ)

Question: Can the knob plunger withstand radial force?: Answer: It is not recommended to bear radial cutting force, as it is prone to product damage and fracture, and generally it can only bear axial force.
Question: What role does a ball plunger play?: Answer: It is a mechanical element part that can easily and quickly locate and fix the workpiece by operating the knob or the handle to pull out or insert the pin. Early knob plungers were mainly used for parts used in the angular positioning of indexing devices. In recent years, knob plunger has been more widely used, and become an indispensable mechanical element part of equipment and devices.
Question: What are the characteristics of fine thread type compared to coarse thread type?: Answer: Fine thread type is suitable for fine-tuning the ejection amount of the pin. More precise positioning is more possible compared to coarse thread type.
Question: What is the difference between reset type and self-locking type knob plungers?: Answer: The self-locking type can lock the front end by turning 90° after pulling out the knob, while keeping the pulled state and turning 90° to release the lock.

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