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  • Notice of End of Sales for Economy Series Pneumatic Equipment Category. More information.

Spring Plungers Stainless Steel, Short Stroke (C-SPJK4)

Product Overview
♢ This series is MISUMI economy series stainless steel spring plunger with coarse threads and mounted from the hexagon socket at the bottom. It is manufactured in China, so its price is reduced significantly, up to 93% less than other similar products.
♢ 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
尺寸图
Material Specification
Load ClassificationTypeBodyPinSpring
 Material Material Hardness Material
Stainless Steel Convex PinLight LoadC-SPJKSUS304SUS30320HRC~SUS304
Ultra Heavy LoadC-SPJX
 
Load ClassificationTypeBodyPinSpring
 Material Material Material
Stainless Steel Convex PinUltra Light LoadELSPJYSUS304SUS303SUS304
Resin Convex PinUtra Light LoadELSPRYPOM
Light LoadELSPRK
Heavy LoadELSPRZ
Ultra Heavy LoadELSPRX
Specification Table
订货范例
 
Part NumberdStroke SL
(Reference Value)
BLight LoadUltra Heavy Load
TypeO.D. M
(Coarse Thread)
Load (N)Load (N)
min.max.min.max.
C-SPJK (Light Load)
C-SPJX (Ultra Heavy Load)
31.211031.512
42.11.22225412
52.71.5122.52.58624
63.233310930
842163.544111345
1052.545151950
kgf=N×0.101972
The min. load represents the initial load, and the max. load represents the load at the maximum press-in limit of convex pin.
There is no groove for front end riveting.
No anti-loosening treatment is applied.
C-SPJX (Ultra Heavy Load) is for O.D. M4~M10 only.
Part NumberdStroke SL
(Reference Value)
BUltra Light LoadLight LoadHeavy LoadUltra Heavy Load
TypeO.D. M
(Coarse Thread)
Load (N)Load (N)Load (N)Load (N)
min.max.min.max.min.max.min.max.
(Stainless Steel Convex Pin)
ELSPJY
(Resin Convex Pin)
ELSPRY
ELSPRK
ELSPRZ
ELSPRX
31.21711.50.110.490.51.510.82--
42.11.291.520.511.541.64.829411.5
52.71.51222.50.622.4927.95.114.7624.2
63.2132.530.973.062.89.95.519.69.429.5
842152.541.163.263.610.96.119.613.543.7
1052.516351.544.764.214.69.629.419.153.3
1263.520361.814.824.614.810.429.424.558.8
1684.522383.19.19.929.31858.826.678.7
Product Features
♢ It has complete specifications, which can satisfy the requirements of various sizes, lengths, and loads.
♢ It is made of all stainless steel without painting and coloring, so it is suitable for equipment with high requirements on the surface.
♢The front end has a wrench slot, and the bottom end has a hex socket mounting hole, which facilitates installation.
♢ The stroke can be fine-tuned correspondingly to the screw-in depth.
♢ 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.
Example of Use
When pressed down
Usage Method 1
When released
Usage Method 2
Related Products


Part Number 

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Part Number
C-SPJK4
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipOuter Dia. M
(mm)
Stroke (S)
(mm)
Pin Material Body Material Initial Load (Range)
(N)
Main Body Surface Treatment Min. Load
(N)
Max. Load
(N)
Load Type Content

SGD 1.68

1 Piece(s)Available Same day 41.2[Stainless Steel] Stainless Steel[Stainless Steel] Stainless Steel0.01~50Electroless Nickel Plating25Light loadLight Load

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  1. 1

Basic Information

Mounting Method Screw-In Thread Locking Treatment Not Provided Tip Heat Treatment Not Provided
Wrench Hole Shape Hex Pin Surface Treatment Not Provided

Please check the type/dimensions/specifications of the part C-SPJK4 in the Spring Plungers Stainless Steel, Short Stroke series.

Frequently asked question (FAQ)

Question: What role does a spring plunger play?
Answer: By controlling the screw-in depth for threads, it enables the internal pin to set the preload and perform up and down stroke movement. It is suitable for mechanical devices, fixtures, molds, automated machinery, etc.
Question: What is the meaning of max load and min load?
Answer: It refers to the load of the product. The min load represents the initial load value, and the max load represents the load value at the maximum press-in stroke.
Question: What is the difference between a ball plunger and a spring plunger?
Answer: A ball 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, mold demoulding and workpiece lifting.

Similar Part Numbers

Part Number
C-BULX6-12SUSFP
C-SPJK10
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C-SPJK5
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Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipOuter Dia. M
(mm)
Stroke (S)
(mm)
Pin Material Body Material Initial Load (Range)
(N)
Main Body Surface Treatment Min. Load
(N)
Max. Load
(N)
Load Type Content

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