
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X225-20S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 20 mm range without swapping the cylinder. Ø32mm bore, 225mm nominal stroke, PT1/8 ports and adjustable end cushioning.
The AirTAC SCJ32X225-20S is a double-acting, single-rod tie-rod cylinder with a rear-cap adjusting screw that provides up to 20 mm of field-adjustable stroke-end reduction, letting you fine-tune the 225 mm nominal stroke without changing the cylinder. This model includes a built-in magnet for direct mounting of CMSG/DMSG/EMSG sensors, and at 0.5 MPa it delivers 402 N push and 345 N pull force through a 12 mm diameter piston rod.
The 32 mm bore body has a length A of 182 mm and uses PT1/8 ports with an M10x1.25 rod thread. Its 21 mm air cushion decelerates the piston smoothly at both ends, and the entire unit operates on 40 µm filtered air from 0.15 to 1.0 MPa across a temperature range of -20 to +70 °C.
| Model | Airtac SCJ32 Standard Cylinder SCJ32X225-20S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 225 mm |
| Stroke adjustment | Up to 20 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.
| 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.
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×225 | Nominal (maximum) stroke length in mm. |
| -20 | 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.
During machine setup, the 20 mm adjusting screw lets technicians dial in the exact stroke end position for pick-and-place or ejector mechanisms without swapping shims or cylinder bodies.
In light-duty diverters or stoppers, the adjustable stroke compensates for wear on the tooling or product contact surface over time, maintaining consistent positioning.
The 402 N push force and adjustable end stop suit fixturing where the clamping depth must be set precisely for different part batches on a small assembly line.
Choose the SCJ32 when your application needs up to 402 N of push force at standard plant pressure and you value the ability to adjust the stroke end by up to 20 mm during commissioning or format changes. If you need more force, stepping up to the SCJ40 bore provides 628 N push at 0.5 MPa, while a fixed-stroke SC32 is the better pick when the stroke length is permanently fixed and you want to eliminate the adjusting mechanism. For direct replacement, match the SCJ32X225-20S bore, 225 mm nominal stroke, 20 mm adjust range, PT port thread, basic mounting, and the -S magnet option.
At a 225 mm stroke, the 12 mm rod is well-supported within the standard range, but if your load applies significant side force, consider adding an external guide rail or switching to a guided cylinder to protect the rod bearing from premature wear.
Adjustable-stroke checklist
At 0.5 MPa, it generates 402 N pushing and 345 N pulling. At the maximum operating pressure of 0.9 MPa, the push force reaches 724 N. The pull force is lower because the 12 mm rod reduces the effective piston area on the return stroke.
Yes, provided the mounting style and port thread match. The SCJ32 body is slightly longer to house the adjusting screw, so check the 182 mm body length A and ensure the extra rear-cap clearance is available. The stroke must be set to match your original requirement within the 20 mm adjustment range.
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