Plungers
About Plungers
Plungers are machine elements for positioning and fixing workpieces.
A spring is built into the main body so that the ball (pin) at the tip sinks into the body when a load is applied, and is returned to its former position by spring force when the load is removed.
Ball plungers with moving tip balls and pin plungers with moving tip pins are available.
They are used in applications such as positioning and indexing of sliding mechanisms and workpiece extrusion.
The spring-loaded reciprocating mechanism of the ball (pin) can be incorporated easily in devices and equipment.
Selection Conditions
- Select Thread SizeM5
| Image |  |
|
|
|
|
|
 |
|
|
|---|---|---|---|---|---|---|---|---|---|
| Part Name | Miniature Ball Plunger | Miniature Ball Plunger | Miniature Ball Plunger | Miniature Ball Plunger | Miniature Ball Plunger | Miniature Ball Plunger | Miniature Ball Plunger (Made of Stainless Steel) | Miniature Ball Plunger (Made of Stainless Steel) | Miniature Ball Plunger (Made of Stainless Steel) |
| Part Number | PAF-5-L | PAF-5-L-P | PAF-5-M | PAF-5-M-P | PAF-5-H | PAF-5-H-P | PAFS-5-L | PAFS-5-L-P | PAFS-5-M |
| Feature | Good Cost Performance |
Good Cost Performance |
Good Cost Performance |
Good Cost Performance |
Good Cost Performance |
Good Cost Performance |
Good Cost Performance |
Good Cost Performance |
Good Cost Performance |
| Thread Part Material | Steel | Steel | Steel | Steel | Steel | Steel | Stainless Steel | Stainless Steel | Stainless Steel |
| Material | Steel | Steel | Steel | Steel | Steel | Steel | Stainless Steel | Stainless Steel | Stainless Steel |
| Thread Size | M5 | M5 | M5 | M5 | M5 | M5 | M5 | M5 | M5 |
| Load | 2.9N ～ 9.8N | 2.9N ～ 9.8N | 4.9N ～ 20N | 4.9N ～ 20N | 11.2N ～ 24.1N | 11.2N ～ 24.1N | 2.9N ～ 9.8N | 2.9N ～ 9.8N | 4.9N ～ 20N |
| Vibration Resistant Treatment | No | Yes | No | Yes | No | Yes | No | Yes | No |
| CAD | CAD | CAD | CAD | CAD | CAD | CAD | CAD | CAD | CAD |
| Specifications | Specifications | Specifications | Specifications | Specifications | Specifications | Specifications | Specifications | Specifications | Specifications |
| Image | |
|
|
 |
 |
 |
|
 |
|
|---|---|---|---|---|---|---|---|---|---|
| Part Name | Miniature Ball Plunger (Made of Stainless Steel) | Miniature Ball Plunger (Made of Stainless Steel) | Miniature Ball Plunger (Made of Stainless Steel) | Miniature Ball Plunger - with Nylon Lock | Miniature Ball Plunger - with Nylon Lock | Miniature Ball Plunger (Made of Stainless Steel) | Miniature Ball Plunger (Made of Stainless Steel) | Small Plunger | Small Plunger |
| Part Number | PAFS-5-M-P | PAFS-5-H | PAFS-5-H-P | FP-5 | MP-5 | MPS-5 | MPS-5-Z | PSS-5-2 | PSS-5-1 |
| Feature | Good Cost Performance |
Good Cost Performance |
Good Cost Performance |
Light load Spinning ball |
Heavy-loaded Spinning ball |
Spinning ball | Spinning ball | Small Plunger | Small Plunger |
| Thread Part Material | Stainless Steel | Stainless Steel | Stainless Steel | Steel | Stainless Steel | Stainless Steel | Stainless Steel | Steel | Steel |
| Material | Stainless Steel | Stainless Steel | Stainless Steel | Steel | Steel | Stainless Steel | Stainless Steel | Steel | Steel |
| Thread Size | M5 | M5 | M5 | M5 | M5 | M5 | M5 | M5 | M5 |
| Load | 4.9N ～ 20N | 11.2N ～ 24.1N | 11.2N ～ 24.1N | 2.9N ～ 9.8N | 4.9N ～ 20N | 4.9N ～ 20N | 11N ～ 24N | 2N ～ 7.8N | 4.9N ～ 15N |
| Vibration Resistant Treatment | Yes | No | Yes | Yes | Yes | No | No | Yes | Yes |
| CAD | CAD | CAD | CAD | CAD | CAD | CAD | CAD | CAD | CAD |
| Specifications | Specifications | Specifications | Specifications | Specifications | Specifications | Specifications | Specifications | Specifications | Specifications |
| Image |  |
|
 |
|
|
|
|
 |
|
|---|---|---|---|---|---|---|---|---|---|
| Part Name | Small Plunger | Small Plunger | Spring Plungers | Spring Plungers | Spring Plungers | Spring Plungers | Spring Plungers | Spring Plungers | Spring Plungers |
| Part Number | PSSS-5-1 | PSSS-5-3 | PSP-5B-3 | PSP-5-3 | PSP-5-5 | PSP-5-3-S | PSP-5-5-S | PSP-5-3-N | PSP-5-5-N |
| Feature | Small Plunger | Small Plunger | Pin Plunger with Vibration Resistant Treatment |
Pin Plunger with Vibration Resistant Treatment |
Pin Plunger with Vibration Resistant Treatment |
Pin Plunger with Vibration Resistant Treatment |
Pin Plunger with Vibration Resistant Treatment |
Light load | Light load |
| Thread Part Material | Stainless Steel | Stainless Steel | Steel | Steel | Steel | Steel | Steel | Steel | Steel |
| Material | Stainless Steel | Stainless Steel | Steel | Steel | Steel | Steel | Steel | Plastic | Plastic |
| Thread Size | M5 | M5 | M5 | M5 | M5 | M5 | M5 | M5 | M5 |
| Load | 4.9N ～ 15N | 6N ～ 24.2N | 1N ～ 7.8N | 2N ～ 9.8N | 2N ～ 9.8N | 3.9N ～ 20N | 2.9N ～ 19.6N | 2N ～ 9.8N | 2N ～ 9.8N |
| Vibration Resistant Treatment | No | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
| CAD | CAD | CAD | CAD | CAD | CAD | CAD | CAD | CAD | CAD |
| Specifications | Specifications | Specifications | Specifications | Specifications | Specifications | Specifications | Specifications | Specifications | Specifications |
| Image |  |
|
|
|
 |
|
|
|
|
|---|---|---|---|---|---|---|---|---|---|
| Part Name | Spring Plungers - Stainless Steel | Spring Plungers - Stainless Steel | Spring Plungers - Stainless Steel | Spring Plungers - Stainless Steel | Spring Plungers - Stainless Steel | Spring Plungers - Stainless Steel | Spring Plungers - Stainless Steel | Spring Plungers - Stainless Steel | |
| Part Number | PSPS-5-3-S | PSPS-5-5-S | PSPS-5-3-Z | PSPS-5-5-Z | PSPS-5-3-NS | PSPS-5-5-NS | PSPS-5-3-NZ | PSPS-5-5-NZ | |
| Feature | Pin Plungers | Pin Plungers | Pin Plungers | Pin Plungers | Pin Material Plastic |
Pin Material Plastic |
Pin Material Plastic |
Pin Material Plastic |
|
| Thread Part Material | Stainless Steel | Stainless Steel | Stainless Steel | Stainless Steel | Stainless Steel | Stainless Steel | Stainless Steel | Stainless Steel | |
| Material | Stainless Steel | Stainless Steel | Stainless Steel | Stainless Steel | Plastic | Plastic | Plastic | Plastic | |
| Thread Size | M5 | M5 | M5 | M5 | M5 | M5 | M5 | M5 | |
| Load | 2.7N ～ 16.3N | - | 6.8N ～ 22N | - | 2.7N ～ 16.3N | - | 6.8N ～ 22N | - | |
| Vibration Resistant Treatment | No | No | No | No | No | No | No | No | |
| CAD | CAD | CAD | CAD | CAD | CAD | CAD | CAD | CAD | |
| Specifications | Specifications | Specifications | Specifications | Specifications | Specifications | Specifications | Specifications | Specifications |
Products related to Plungers
| Image |  |
 |
 |
 |
 |
 |
|||
|---|---|---|---|---|---|---|---|---|---|
| Part Name | Wrench for Pin Plunger | Plunger Holder | Ball Button | Locating Pin | Bushing for Locating Pin - Straight Type | Bushing for Locating Pin - Flange Type | |||
| Part Number | PPW | PHL | BB | PJP | PJA | PJB | |||
| Feature | Dedicated Wrench | Holder for use with Plunger | Used in combination with Plunger For Heavy Load |
For Locating Parallel Pin |
Used in combination with PJP | Used in combination with PJP | |||
| CAD | CAD | CAD | CAD | CAD | CAD | CAD | |||
| Specifications | Specifications | Specifications | Specifications | Specifications | Specifications | Specifications | |||
| List | PPW-10 PPW-12 PPW-16 PPW-24 PPW-30 PPW-5 PPW-6 PPW-8 | PHL-M10-A PHL-M12-A PHL-M16-A PHL-M5-A PHL-M6-A PHL-M8-A | BB-10 BB-12 BB-16 BB-4 BB-5 BB-6 BB-8 | PJP-10-25 PJP-10-30 PJP-12-40 PJP-3-10 PJP-3-15 PJP-3-20 PJP-4-10 PJP-4-15 PJP-4-20 PJP-5-10 PJP-5-15 PJP-5-18 PJP-5-20 PJP-6-10 PJP-6-15 PJP-6-18 PJP-6-20 PJP-8-20 PJP-8-25 PJP-8-30 | PJA-10 PJA-12 PJA-5 PJA-6 PJA-8 | PJB-10 PJB-12 PJB-5 PJB-6 PJB-8 |
Latest
Helpful Resources
Search by purpose
Product IntroductionCustomizationServices & Product OptionsIssue/case studiesTechnical DataUsageSelection MethodInstallation Method/MaintenanceSafety PrecautionsGlossary
Search by keyword
Improved productivity/workabilitySafety measures/precautionary measuresReduced cost/energy saving/long lifeVibration prevention/high precisionCompact/space-saving/lightweightCustomizationHigh strength/high rigidityHeat resistance/corrosion resistanceElegant functionality/designCleanroom/vacuum/non-magneticSeizing PreventionAutomation/robots/motorizationOthers
Search by industry
Machine ToolsSemiconductor Manufacturing EquipmentFood MachineryAutomotive Manufacturing ProcessMedical equipmentFA Devices
Search by series
The Semiconductor Industry and NBKVideo LibraryHints for correctly using NBK productsSolution samplesWhat is a Screw?Description of Mechanical Components for EngineersDescription of Special Screws for Engineers3 Min Engineering TipsServices & Product OptionsTechnical Data
