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Spring Plungers Steel Screw (Part Numbers)
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Part Number
Configured Part Number is shown.
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.
Material Specification
| Load Classification | Type | Body | Pin | Spring | ||||
 Material |  Surface Treatment | Material |  Hardness | Surface Treatment | Material | |||
| Steel Convex Pin | Ultra Light Load | E-LPJS | 1215 | Black Oxide | S45C | 45~55HRC | Zinc Plating | SWP-B |
| Light Load | E-LPJL | |||||||
| Heavy Load | E-LPJH | Black Oxide | ||||||
| Ultra Heavy Load | E-LPJX | Nickel plating | ||||||
| Resin Convex Pin | Ultra Light Load | E-LNPJS | Black Oxide | POM | - | _ | ||
| Light Load | E-LNPJL | |||||||
| Heavy Load | E-LNPJH | |||||||
| Ultra Heavy Load | E-LNPJX | Nickel plating | ||||||
| Part Number | d | ℓ | L | B | Ultra Light Load | Light Load | Heavy Load | Ultra Heavy Load | |||||||
| Type | M (Coarse Thread) | S | Ultra Light Load Light Load Heavy Load | Ultra Heavy Load | Load (N) | Load (N) | Load (N) | Load (N) | |||||||
| min. | max. | min. | max. | min. | max. | min. | max. | ||||||||
| (Steel Convex Pin) E-LPJS (Only with ＊ symbol) E-LPJL E-LPJH E-LPJX (Only with ＊ symbol) (Resin Convex Pin) E-LNPJS (Only with ＊ symbol) E-LNPJL(Only with ＊ symbol) E-LNPJH(Only with ＊ symbol) E-LNPJX (Only with ＊ symbol) ℓ dimension in ( ) applies to Ultra Heavy Load. | 3 | **1.5 | 1.1 | 10 (15) | 10 | 15 | 0.9 | 0.1 | 0.3 | 0.4 | 1.6 | 0.9 | 4.2 | 2.5 | 5.1 |
| ＊＊3 | 1.1 | 15 (20) | 15 | 20 | 0.9 | 0.1 | 0.3 | 0.3 | 1 | 1.1 | 4.9 | 2.5 | 6.8 | ||
| 4 | ＊＊2 | 1.6 | 15 (24) | 15 | 24 | 1.3 | 0.2 | 0.7 | 0.9 | 4.1 | 1.9 | 8.7 | 6.2 | 15.3 | |
| ＊＊4 | 1.6 | 24 | 24 | 24 | 1.3 | 0.2 | 0.7 | 0.7 | 2.2 | 0.3 | 8.3 | 4.8 | 15 | ||
| 5 | ＊＊3 | 2 | 20 (27) | 20 | 27 | 1.5 | 0.7 | 3 | 1.5 | 9.8 | 2 | 22.5 | 11 | 30.4 | |
| ＊＊5 | 2 | 27 (39) | 27 | 39 | 1.5 | 0.7 | 3 | 1.6 | 10.4 | 2.5 | 23.4 | 11.6 | 31.5 | ||
| 6 | ＊＊3 | 2.5 | 25 (30) | 25 | 30 | 2 | 0.9 | 3.2 | 3.4 | 10.4 | 12.5 | 33.8 | 17.2 | 46.6 | |
| ＊＊5 | 2.5 | 30 (26) | 30 | 36 | 2 | 0.9 | 3.2 | 1.9 | 9.7 | 6.2 | 32.6 | 16.8 | 47.4 | ||
| 10 | 2.5 | 30 | 39 | - | 2 | - | - | 1.5 | 10.9 | 5 | 32.7 | - | - | ||
| 8 | ＊＊3 | 3.1 | 25 (27) | 25 | 27 | 2.5 | 0.9 | 3.3 | 3.5 | 9.4 | 11.7 | 31.2 | 28.1 | 56.9 | |
| ＊＊5 | 3.1 | 27 (30) | 27 | 35 | 2.5 | 0.9 | 3.3 | 2.9 | 9.6 | 8.3 | 31.9 | 10.5 | 39.9 | ||
| 10 | 3.1 | 30 | 43 | - | 2.5 | - | - | 3.1 | 11.2 | 8.4 | 36.4 | - | - | ||
| 10 | ＊＊5 | 3.8 | 30 | 30 | 35 | 3 | 1.9 | 4.7 | 2.8 | 14.1 | 11.4 | 51 | 17 | 73.7 | |
| ＊＊10 | 3.8 | 30 | 43 | 53 | 3 | 1.7 | 4.7 | 2.9 | 14.6 | 9.5 | 60.8 | 13.7 | 75.5 | ||
| 15 | 3.8 | 30 | 58 | - | 3 | - | - | 3.4 | 17 | 7.2 | 57.3 | - | - | ||
| 12 | ＊＊5 | 5.5 | 30 (35) | 30 | 43 | 4 | 1.5 | 4.7 | 3.5 | 17.1 | 5.6 | 41 | 35.3 | 107.9 | |
| ＊＊10 | 5.5 | 35 | 43 | 58 | 4 | 1.3 | 5.9 | 2.5 | 21.1 | 5.2 | 55.9 | 12.7 | 107.9 | ||
| ＊＊15 | 5.5 | 35 | 51 | 78 | 4 | 1.6 | 5.9 | 2.3 | 19.4 | 5.1 | 53.6 | 16.7 | 140.2 | ||
| 20 | 5.5 | 35 | 78 | - | 4 | - | - | 4.1 | 22.5 | 8.7 | 56.1 | - | - | ||
| 16 | ＊＊10 | 8 | 35 | 60 | 60 | 5 | 1.7 | 12.8 | 12.1 | 38 | 26.5 | 78 | 29.6 | 157.9 | |
| ＊＊15 | 8 | 35 | 60 | 70 | 5 | 1.7 | 12.8 | 9.7 | 39.7 | 14.2 | 79.4 | 10 | 142.2 | ||
| ＊＊20 | 8 | 35 | 85 | 90 | 5 | 1.7 | 12.8 | 8.6 | 40.1 | 16.8 | 80.4 | 4.3 | 146.1 | ||
| ＊30 | 8 | 35 | 125 | 125 | 5 | - | - | 17 | 38 | 19.8 | 81.2 | 5.2 | 140.7 | ||
| 40 | 8 | 35 | 125 | - | 5 | 5.5 | 41.2 | 7.6 | 84.3 | - | - | ||||
| 50 | 8 | 35 | 155 | 5 | 4.4 | 48.3 | 7.5 | 78.8 | |||||||
| 60 | 8 | 35 | 159 | 5 | 4.1 | 49.6 | 6.4 | 78.1 | |||||||
| 70 | 8 | 35 | 185 | 5 | 3.1 | 55.7 | 4.3 | 95 | |||||||
| 80 | 8 | 35 | 185 | 5 | 2.5 | 51.3 | 3.2 | 103.5 | |||||||
| 20 | ＊15 | 10 | 45 | 60 | 80 | 6 | 14.4 | 79.4 | 22.5 | 147.1 | 14.5 | 274.6 | |||
| 20 | 10 | 45 | 72 | - | 6 | 13.9 | 83.4 | 23 | 157.9 | - | - | ||||
| 30 | 10 | 45 | 96 | 6 | 13.6 | 88.3 | 18.6 | 154 | |||||||
| 40 | 10 | 45 | 120 | 6 | 13.4 | 109.8 | 26.8 | 195.1 | |||||||
| 24 | 7 | 10 | 45 | 60 | 10 | 27.8 | 65.9 | 40.7 | 127.9 | ||||||
| ＊15 | 10 | 45 | 60 | 84 | 10 | 25.5 | 106.9 | 46.9 | 226.5 | 55.1 | 375.2 | ||||
| 20 | 10 | 45 | 75 | - | 10 | 15.3 | 101 | 43.1 | 224.6 | - | - | ||||
| 30 | 10 | 45 | 100 | 10 | 19.1 | 100 | 47.8 | 231.4 | |||||||
| 40 | 10 | 45 | 124 | 10 | 17.1 | 98.1 | 44.1 | 225.5 | |||||||
| 30 | 15 | 14 | 45 | 66 | 10 | 9.3 | 104.4 | 32.4 | 259.9 | ||||||
| 20 | 14 | 45 | 78 | 10 | 55.2 | 156.9 | 72.6 | 356.5 | |||||||
| 30 | 14 | 45 | 100 | 10 | 28.4 | 128.3 | 41.6 | 290.3 | |||||||
| 40 | 14 | 45 | 123 | 10 | 14.7 | 109.2 | 44.4 | 303 | |||||||
Load (N) is “-”, indicating that this series has no corresponding dimensions and specifications·The body is made of steel material, while the front pin is made of either steel or polyacetal, available in anti-loosening type and none anti-loosening type.
·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.
·The stroke can be fine-tuned correspondingly to the screw-in depth.
| Part Number |
|---|
| E-LPJX4-4 |
| E-LPJX5-3 |
| E-LPJX5-5 |
| E-LPJX6-3 |
| E-LPJX6-5 |
| E-LPJX8-3 |
| E-LPJX8-5 |
| E-LPJX10-5 |
| E-LPJX10-10 |
| E-LPJX12-5 |
| E-LPJX12-10 |
| E-LPJX12-15 |
| E-LPJX16-10 |
| E-LPJX16-15 |
| E-LPJX16-20 |
| E-LPJX16-30 |
| E-LPJX20-15 |
| E-LPJX24-15 |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Outer Dia. M (mm) | Stroke (S) (mm) | Pin Material | Thread Locking Treatment | Main Body Surface Treatment | Pin Surface Treatment | Min. Load (N) | Max. Load (N) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
SGD 2.80 | 1 Piece(s) | Available | 9 Day(s) | 4 | 4 | [Steel] Steel | Not Provided | Electroless Nickel Plating | Black Oxide | 5.2 | 13 | |
SGD 2.60 | 1 Piece(s) | Available | 9 Day(s) | 5 | 3 | [Steel] Steel | Provided | Electroless Nickel Plating | Black Oxide | 9.1 | 24.5 | |
SGD 2.70 | 1 Piece(s) | Available | 9 Day(s) | 5 | 5 | [Steel] Steel | Provided | Electroless Nickel Plating | Black Oxide | 8.8 | 24.8 | |
SGD 2.60 | 1 Piece(s) | Available | 9 Day(s) | 6 | 3 | [Steel] Steel | Provided | Electroless Nickel Plating | Black Oxide | 14 | 39.5 | |
SGD 2.70 | 1 Piece(s) | Available | 9 Day(s) | 6 | 5 | [Steel] Steel | Provided | Electroless Nickel Plating | Black Oxide | 14 | 39.4 | |
SGD 2.80 | 1 Piece(s) | Available | 9 Day(s) | 8 | 3 | [Steel] Steel | Provided | Electroless Nickel Plating | Black Oxide | 35 | 41.2 | |
SGD 3.00 | 1 Piece(s) | Available | 9 Day(s) | 8 | 5 | [Steel] Steel | Provided | Electroless Nickel Plating | Black Oxide | 15 | 41.2 | |
SGD 5.50 | 1 Piece(s) | Available | 9 Day(s) | 10 | 5 | [Steel] Steel | Provided | Electroless Nickel Plating | Black Oxide | 16 | 62.8 | |
SGD 5.50 | 1 Piece(s) | Available | 9 Day(s) | 10 | 10 | [Steel] Steel | Provided | Electroless Nickel Plating | Black Oxide | 13 | 62.8 | |
SGD 5.70 | 1 Piece(s) | Available | 9 Day(s) | 12 | 5 | [Steel] Steel | Provided | Electroless Nickel Plating | Black Oxide | 37 | 98.1 | |
SGD 5.90 | 1 Piece(s) | Available | 9 Day(s) | 12 | 10 | [Steel] Steel | Provided | Electroless Nickel Plating | Black Oxide | 15 | 98.1 | |
SGD 6.40 | 1 Piece(s) | Available | 9 Day(s) | 12 | 15 | [Steel] Steel | Provided | Electroless Nickel Plating | Black Oxide | 15 | 98.1 | |
SGD 7.20 | 1 Piece(s) | Available | 9 Day(s) | 16 | 10 | [Steel] Steel | Provided | Electroless Nickel Plating | Black Oxide | 24 | 147 | |
SGD 8.10 | 1 Piece(s) | Available | 9 Day(s) | 16 | 15 | [Steel] Steel | Provided | Electroless Nickel Plating | Black Oxide | 22 | 147 | |
SGD 9.00 | 1 Piece(s) | Available | 9 Day(s) | 16 | 20 | [Steel] Steel | Provided | Electroless Nickel Plating | Black Oxide | 13 | 147 | |
SGD 13.00 | 1 Piece(s) | Available | 9 Day(s) | 16 | 30 | [Steel] Steel | Provided | Electroless Nickel Plating | Black Oxide | 20 | 147 | |
SGD 17.80 | 1 Piece(s) | Available | 9 Day(s) | 20 | 15 | [Steel] Steel | Provided | Electroless Nickel Plating | Black Oxide | 13 | 245 | |
SGD 19.50 | 1 Piece(s) | Available | 9 Day(s) | 24 | 15 | [Steel] Steel | Provided | Electroless Nickel Plating | Black Oxide | 25 | 314 |
Loading...
Basic Information
| Body Material | Steel | Mounting Method | Screw-In | Initial Load (Range)(N) | 0.01~50 |
|---|---|---|---|---|---|
| Tip Heat Treatment | Not Provided | Wrench Hole Shape | Hex |
Specification/Dimensions
-
Outer Dia. M(mm)
-
Stroke (S)(mm)
-
Pin Material
- Steel
- Others
- Steel
-
Thread Locking Treatment
- Not Provided
- Provided
-
Main Body Surface Treatment
- Black Oxide
- Electroless Nickel Plating
-
Pin Surface Treatment
- Not Provided
- Black Oxide
- Zinc Plating
-
Min. Load(N)
-
type
- E-LPJS
-
CAD
- 2D
- 3D
Days to Ship
-
- All
- 9 Day(s) or Less
Specify Alterations
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
Frequently asked question (FAQ)
- Question: What role does a ball plunger play?
- Answer: It specifies the stroke of the front ball and can be used for temporary positioning and indexing of workpieces.
- Question: What role does a spring plunger play?
- Answer: With pin-shaped front section, it can be used to eject workpieces or stoppers.
- Question: What is the difference between a ball plunger and a spring plunger?
- Answer: A 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 and indexing of workpieces.
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