Airtac SCJ32 Standard Cylinder SCJ32X250-50
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X250-50 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 50 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-50 mm
- Port sizePT1/8
- Rod threadM10×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ32 Standard Cylinder SCJ32X250-50
The SCJ32X250-50 is a double-acting, single-rod pneumatic cylinder with a 50 mm rear adjusting screw that lets you dial in the exact stroke end position on the machine. With a 32 mm bore and 12 mm rod, it delivers 402 N of push force at 0.5 MPa, making it a compact but capable actuator for light positioning and clamping tasks.
Because the stroke is field-adjustable, you can compensate for wear, fine-tune a stop during commissioning, or adapt to a new product format without dismounting the cylinder. The tie-rod body is 182 mm long (A dimension) and includes an adjustable air cushion to decelerate the piston smoothly at end of travel.
Airtac SCJ32 Standard Cylinder SCJ32X250-50 Technical Specifications
| Model | Airtac SCJ32 Standard Cylinder SCJ32X250-50 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 250 mm |
| Stroke adjustment | Up to 50 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 SCJ32X250-50
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×250 | Nominal (maximum) stroke length in mm. |
| -50 | 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 SCJ32X250-50 Is Used
Commissioning & Setup
The 50 mm adjusting screw allows technicians to creep up on the exact stop position during machine bring-up, eliminating the need to swap fixed-stroke cylinders or machine external hard stops.
Wear Compensation
In repetitive pressing or clamping fixtures, the adjustable stroke end can be tweaked over time to maintain consistent contact force as tooling or pads wear, extending fixture life.
Format Changeover
On small packaging or sorting lines, the 250 mm stroke with 50 mm of adjustment lets a single cylinder handle multiple product sizes by quickly resetting the pusher or gate end position.
Is the Airtac SCJ32 Standard Cylinder SCJ32X250-50 the Right Cylinder?
Choose this 32 mm bore when you need up to 402 N of push force at standard plant air. If your load demands more thrust, step up to the SCJ40 series, which provides 628 N push at 0.5 MPa. For applications where the stroke never changes after setup, the fixed-stroke SC32X250 is a simpler, lower-cost alternative. This SCJ32X250-50 is a direct replacement for an existing AirTAC SCJ adjustable cylinder of the same bore, 250 mm nominal stroke, and 50 mm adjust range with PT ports and basic mounting.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-50)
- ✓ 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 SCJ32X250-50 FAQ
At 0.5 MPa, the push force is 402 N and the pull force is 345 N (the rod reduces the piston area on the return stroke). At the maximum operating pressure of 0.9 MPa, push force reaches 724 N. The theoretical maximum at 1.0 MPa is 82 kgf.
Yes, this is a genuine AirTAC SCJ32X250-50. It is a direct dimensional and performance match for any AirTAC SCJ32 cylinder with a 250 mm nominal stroke and 50 mm adjustment range, using the standard PT port thread and basic mounting. Verify your existing port size (PT1/8) and rod thread (M10x1.25) match.
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