The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X500-30 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, 500mm nominal stroke, PT1/8 ports and adjustable end cushioning.
The SCJ32X500-30 is a double-acting, single-rod pneumatic cylinder that integrates a rear-cap adjusting screw, providing up to 30 mm of field-adjustable stroke reduction from the 500 mm nominal maximum. This allows engineers to precisely dial in the stroke end position during commissioning or changeovers without replacing the cylinder or adding external hard stops. With a 32 mm bore, it delivers 402 N of push force at 0.5 MPa, making it suitable for light clamping, sorting, and material-handling tasks.
Built on a proven tie-rod platform, the SCJ32 features a 12 mm diameter piston rod with M10x1.25 threads and PT1/8 ports. The adjustable air cushion decelerates the piston smoothly, and the body length A(SCJ) is 182 mm plus stroke. Its compact footprint and the ability to take up mechanical wear or adjust for different product formats make it a versatile choice for machine builders who need repeatable, tunable linear motion.
| Model | Airtac SCJ32 Standard Cylinder SCJ32X500-30 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 500 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. |
| ×500 | 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 adjustment range lets technicians fine-tune the end-of-stroke position during initial machine setup, compensating for small assembly variations without needing to machine custom spacers.
On packaging lines, quickly adjust the push-off stroke for different box or product sizes by turning the rear screw, minimizing downtime between production runs.
In clamping or pressing fixtures, the adjustable stroke can be used to take up mechanical wear on tooling or contact surfaces over time, maintaining consistent clamping force and position.
Choose the SCJ32 when your application requires a 500 mm stroke that can be fine-tuned by up to 30 mm. If you need more force, step up to the 40 mm bore SCJ40, which provides 628 N of push at 0.5 MPa. For applications where the stroke length is fixed and will never need adjustment, the standard SC32 fixed-stroke cylinder offers a simpler, more cost-effective solution. This model is a direct replacement for an existing AirTAC SCJ32X500-30 with PT ports and basic mounting. For strokes of this length, ensure the rod is adequately supported against side loads; if significant lateral force is present, consider adding an external linear guide or switching to a guided cylinder.
Adjustable-stroke checklist
A screw in the rear cap acts as an internal stop for the piston. By turning this screw, you can shorten the piston's travel by up to 30 mm from its maximum 500 mm stroke. This adjusts the stroke end position without affecting the cylinder's bore, force output, or speed.
At the standard operating pressure of 0.5 MPa, the SCJ32X500-30 provides 402 N of pushing force and 345 N of pulling force due to the 12 mm piston rod. The maximum push force at 0.9 MPa is 724 N.
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