Airtac SCJ32 Standard Cylinder SCJ32X250-75S
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X250-75S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 75 mm range without swapping the cylinder. Ø32mm bore, 250mm nominal stroke, PT1/8 ports and adjustable end cushioning.
- BoreØ32 mm
- Nominal stroke250 mm
- Stroke adjust-75 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X250-75S
The SCJ32X250-75S is a 32 mm bore double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end. Its rear-cap adjusting screw provides up to 75 mm of stroke-end reduction, letting you fine-tune the 250 mm nominal stroke for commissioning or format changes without swapping the cylinder. At 0.5 MPa it delivers 402 N push and 345 N pull, with a 12 mm diameter piston rod and M10x1.25 rod thread.
This tie-rod cylinder uses PT1/8 ports and features a 21 mm air cushion for smooth deceleration. The built-in magnet (suffix -S) allows direct mounting of CMSG/DMSG/EMSG reed or solid-state sensors along the barrel for reliable end-of-stroke detection. Body length A is 182 mm plus stroke, making it compact for integration into light automation, packaging, or test fixtures.
Airtac SCJ32 Standard Cylinder SCJ32X250-75S Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X250-75S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 250 mm |
| Stroke adjustment | Up to 75 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/8 |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max stroke | Up to 1000 mm |
Specifications follow the official AirTAC SCJ (adjustable-stroke) datasheet. The rear adjusting screw sets the stroke end position; force is the same as the equivalent single-rod SC bore. Confirm against the product label before installation. Thread options: PT (standard) / G.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
SCJ is single-rod, so force matches the equivalent SC bore: push uses the full bore area, pull subtracts the rod area. Actual usable force is lower than theoretical due to friction and back-pressure; size with a safety margin.
Model Code: Airtac SCJ32 Standard Cylinder SCJ32X250-75S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×250 | Nominal (maximum) stroke length in mm. |
| -75 | Adjustable-stroke range in mm (options 10/20/30/40/50/75/100). |
| -S | Optional built-in magnet for sensor position sensing. |
Related types: SC (single rod, fixed stroke), SCD (double rod), SCT (multi-position). SCJ mounting: Basic, FA, LB, TC, TCM1. Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Where the Airtac SCJ32 Standard Cylinder SCJ32X250-75S Is Used
Commissioning & Setup
The 75 mm adjust range allows technicians to quickly find the optimal stroke end during machine bring-up, eliminating the need for multiple fixed-stroke cylinders.
Light Assembly Stops
Sets a repeatable mechanical stop in small assembly cells, where the 402 N push force handles pressing or locating tasks with adjustable end-position tuning.
Packaging Gate Adjustment
Fine-tunes a diverter gate stroke on a compact conveyor line, adapting to different package sizes without reprogramming or changing hard stops.
Is the Airtac SCJ32 Standard Cylinder SCJ32X250-75S the Right Cylinder?
Choose the SCJ32X250-75S when you need to dial in a precise stroke end position during commissioning or after tooling wear. If 402 N push is marginal, stepping up to the SCJ40 bore provides 628 N push at the same pressure. For applications requiring a fixed, non-adjustable stroke, the standard SC32X250 is a simpler alternative. This model replaces any AirTAC SCJ32 adjustable-stroke cylinder with a 250 mm nominal stroke, 75 mm adjust range, PT ports, and a magnet. For strokes over 300 mm, consider an external guide to protect the 12 mm rod from side loads.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-75)
- ✓ Required force at your working pressure
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear adjusting screw, then lock it before running.
- check Adjust end cushion screws for smooth stops.
- check Use SCJ mounting accessory (FA / LB / TC / TCM1).
- check Installation by qualified personnel per AirTAC docs.
Airtac SCJ32 Standard Cylinder SCJ32X250-75S FAQ
A rear-cap screw sets the stroke end position within a 75 mm range. The 250 mm nominal stroke is the maximum; the screw shortens it, allowing field adjustment without disassembling the cylinder.
At 0.5 MPa air pressure, it generates 402 N pushing force and 345 N pulling force. The push force is higher because the single rod reduces the piston area on the pull side.
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