Airtac SCJ32 Standard Cylinder SCJ32X250-30
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X250-30 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 30 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-30 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X250-30
The SCJ32X250-30 is a 32 mm bore double-acting, single-rod cylinder with a rear adjusting screw that provides 30 mm of field-adjustable stroke-end control. This allows you to fine-tune the piston's stopping position without removing the cylinder from the machine, making it ideal for commissioning trials and format changeovers. At 0.5 MPa it delivers 402 N of push force, with the 12 mm diameter rod providing 345 N of pull force.
This tie-rod cylinder uses PT1/8 ports and an M10x1.25 rod thread, with a 21 mm air cushion at each end to decelerate the piston. The body length A(SCJ) is 182 mm plus the 250 mm nominal stroke. It operates on filtered air from 0.15 to 1.0 MPa and handles temperatures from -20 to +70 °C with its standard TPU seals.
Airtac SCJ32 Standard Cylinder SCJ32X250-30 Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X250-30 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 250 mm |
| Stroke adjustment | Up to 30 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 SCJ32X250-30
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×250 | Nominal (maximum) stroke length in mm. |
| -30 | 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 SCJ32X250-30 Is Used
Commissioning & Setup
The 30 mm rear adjuster lets technicians dial in the exact stroke end position during initial machine setup, eliminating the need to swap cylinders or fabricate external hard stops.
Product Stops & Diverter Gates
On light-duty conveyors, the adjustable stroke allows operators to quickly change the stop or divert position for different package sizes without tools, using the 402 N push force to halt products reliably.
Wear Compensation
In repetitive clamping or pressing fixtures, the stroke-end screw can be advanced over time to compensate for pad or tooling wear, maintaining consistent clamp force and part contact without reprogramming the machine.
Is the Airtac SCJ32 Standard Cylinder SCJ32X250-30 the Right Cylinder?
Step up to the 40 mm bore SCJ if your application needs more force—the SCJ40 delivers 628 N push at 0.5 MPa. For a fixed-stroke solution without the adjusting screw, consider the standard SC series. This SCJ32X250-30 is a direct replacement for another AirTAC SCJ32 with a 250 mm nominal stroke, 30 mm adjust range, PT ports, basic mounting, and no magnet. Because the stroke is 250 mm, ensure the rod is not subjected to high side loads; if lateral forces are present, add an external guide rail or switch to a guided cylinder to prevent rod bending and seal wear.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-30)
- ✓ 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 SCJ32X250-30 FAQ
At 0.5 MPa, the push force is 402 N and the pull force is 345 N. The maximum push force at the 0.9 MPa operating limit is 724 N. The rear adjusting screw changes only the stroke end position, not the cylinder's force output.
Yes, if your existing cylinder is an AirTAC SCJ32 with a 250 mm nominal stroke, a 30 mm adjustable range, PT1/8 ports, and basic (no bracket) mounting. Verify that your machine's mounting holes and rod thread (M10x1.25) match before ordering.
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