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Spring Plungers Stainless Steel


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.
Product Feature
♢ 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-PJHW3-3
C-PJHW4-2
C-PJHW4-4
C-PJHW5-3
C-PJHW5-5
C-PJHW6-3
C-PJHW6-5
C-PJHW8-3
C-PJHW8-5
C-PJHW10-5
C-PJHW12-10
C-PJLW3-3
C-PJLW4-2
C-PJLW4-4
C-PJLW5-3
C-PJLW5-5
C-PJLW6-3
C-PJLW6-5
C-PJLW8-3
C-PJLW8-5
C-PJLW10-5
C-PJLW12-10
Part NumberMinimum order quantityVolume DiscountDays to ShipOuter Dia. M
(mm)
Stroke (S)
(mm)
Load Type
10 Piece(s)Available 10 Day(s) 33Heavy load
20 Piece(s)Available 10 Day(s) 42Heavy load
10 Piece(s)Available 10 Day(s) 44Heavy load
10 Piece(s)Available 10 Day(s) 53Heavy load
20 Piece(s)Available 10 Day(s) 55Heavy load
20 Piece(s)Available 10 Day(s) 63Heavy load
20 Piece(s)Available 10 Day(s) 65Heavy load
10 Piece(s)Available 10 Day(s) 83Heavy load
10 Piece(s)Available 10 Day(s) 85Heavy load
20 Piece(s)Available 10 Day(s) 105Heavy load
10 Piece(s)Available 10 Day(s) 1210Heavy load
1 Piece(s)Available Same day 33Light load
20 Piece(s)Available 10 Day(s) 42Light load
20 Piece(s)Available 10 Day(s) 44Light load
20 Piece(s)Available 10 Day(s) 53Light load
10 Piece(s)Available 10 Day(s) 55Light load
10 Piece(s)Available 10 Day(s) 63Light load
1 Piece(s)Available Same day 65Light load
10 Piece(s)Available 10 Day(s) 83Light load
10 Piece(s)Available 10 Day(s) 85Light load
10 Piece(s)Available 10 Day(s) 105Light load
10 Piece(s)Available 10 Day(s) 1210Light load

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  1. 1

Dimensional Drawing
・Material Specification table
Load ClassificationTypeBodyFront EndSpringOperating Temperature
Material Material Hardness Material
Light LoadC-PJLWSUS303SUS30320HRC~SUS304-30 to 260℃
Heavy LoadC-PJHW

Dimensional Drawing
Specification Table
Part NumberSdLBLight Load (C-PJLW)Heavy Load (C-PJHW)
TypeM (Coarse Thread)min.N
Load
max.min.N
Load
max.
C-PJLW
C-PJHW
33115150.90.31.50.63
421.615151.30.52210
4242415210
53220201.5210518
52727315825
632.525252315825
530305201030
833.125252.55201030
527278251340
1053.8303035201545
12105.5354348251850
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 a groove for front end riveting.
No anti-loosening treatment is applied.
kgf=N× 0.101972

Basic Information

Pin Material Stainless Steel Body Material Stainless Steel

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.

Tech Support