The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X250-30S 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.
The SCJ32X250-30S is a 32 mm bore double-acting single-rod cylinder that lets you fine-tune the stroke end by up to 30 mm using the rear adjusting screw, without removing the cylinder from the machine. It delivers 402 N of push force at 0.5 MPa and 724 N at the maximum operating pressure of 0.9 MPa, making it a capable actuator for light to medium automation tasks where stroke length needs field calibration.
This model includes a built-in magnet (-S suffix), so CMSG/DMSG/EMSG reed or solid-state sensors clamp directly onto the tie-rod barrel for non-contact position sensing. The 12 mm diameter piston rod, PT1/8 port, and 21 mm air cushion provide reliable deceleration, while the 182 mm body length (A dimension) keeps the package compact for integration into existing layouts.
| Model | Airtac SCJ32 Standard Cylinder SCJ32X250-30S |
|---|---|
| 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.
| 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. |
| ×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.
The 30 mm rear screw adjustment lets technicians dial in the exact stroke end position during machine commissioning without swapping cylinders or machining external stops, speeding up line start-up.
Adjust the stroke end to fine-tune the gate opening width for different product sizes on a conveyor. The built-in magnet provides end-of-stroke confirmation via a CMSG sensor.
In light clamping fixtures, the 30 mm adjustment range compensates for jaw or pad wear over time, maintaining consistent clamping force without reprogramming the controller.
Choose the SCJ32X250-30S when you need a 250 mm nominal stroke with 30 mm of rear-end adjustability for commissioning or format changes. If the push force of 402 N at 0.5 MPa is marginal, stepping up to the 40 mm bore SCJ40 series provides 628 N at the same pressure. For applications that do not require stroke adjustment, the fixed-stroke SC32X250 is a simpler, slightly shorter alternative. When replacing an existing unit, match the 32 mm bore, 250 mm nominal stroke, 30 mm adjustment range, PT port thread, and the built-in magnet; the basic mounting style uses the cylinder body directly.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 402 N and the pull force is 345 N (reduced by the 12 mm rod area). 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, if you need field-adjustable stroke. The SCJ32X250-30S shares the same 32 mm bore, PT1/8 port, and single-rod design as the SC32, but adds a rear adjusting screw that shortens the stroke end by up to 30 mm. Ensure the slightly longer body length (182 mm A dimension) fits your mounting space.
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