The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X32-20S 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, 32mm nominal stroke, PT1/8 ports and adjustable end cushioning.
The SCJ32X32-20S is a compact 32 mm bore double-acting, single-rod cylinder with a field-adjustable stroke end. Its rear adjusting screw provides up to 20 mm of stroke-end reduction, allowing you to fine-tune the piston's stop position without replacing the cylinder or adding external hard stops. The built-in magnet (-S) lets you clamp CMSG/DMSG/EMSG sensors directly onto the tie-rod barrel for reliable end-of-stroke detection.
At 0.5 MPa, this cylinder delivers 402 N of push force and 345 N on the pull stroke, making it suitable for light clamping, sorting, and diverting tasks. The 12 mm diameter piston rod and M10x1.25 rod thread provide a rigid connection, while the 21 mm air cushion at each end decelerates the piston quietly. The body length A(SCJ) is 182 mm, a compact footprint for integration into tight machine spaces.
| Model | Airtac SCJ32 Standard Cylinder SCJ32X32-20S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 32 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. |
| ×32 | 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.
The 20 mm adjust range lets technicians dial in the exact stroke end-stop on a new machine without cutting rods or fabricating custom stops, speeding up factory acceptance testing.
Fine-tune the gate opening on a conveyor diverter for different product widths. The 402 N push force is ample for lightweight plastic or cardboard packages, and the sensor magnet confirms gate position.
Adjust the press depth for varying material thicknesses. The rear screw provides a repeatable mechanical stop, ensuring consistent label placement or stamp impression depth across production runs.
Choose the SCJ32X32-20S when your application requires a stroke that can be dialed in precisely during commissioning or adjusted for different product sizes. If 402 N of push force is insufficient, stepping up to the SCJ40 bore provides 628 N at the same pressure. For applications needing a fixed, non-adjustable stroke, the standard SC32 series is a direct alternative with identical mounting and force characteristics.
This model is a direct replacement for another AirTAC SCJ32 adjustable-stroke cylinder with a 32 mm nominal stroke, 20 mm adjust range, PT ports, basic mounting, and a magnet. It uses the standard SCJ mounting subset, including FA front flange (F-SC32FA) and LB foot mounts (F-SC32LB).
Adjustable-stroke checklist
A screw in the rear end-cap acts as an adjustable mechanical stop for the piston. Turning the screw changes the retracted end position of the stroke by up to 20 mm. The nominal 32 mm stroke is the maximum; the screw only shortens the stroke, it does not extend it or adjust the cylinder's speed or force.
The SCJ has a rear adjusting screw that allows you to change the stroke end position in the field. A standard SC cylinder has a fixed stroke that is set at the factory. Both are single-rod, double-acting cylinders with identical push/pull forces for the same bore and pressure. Choose the SCJ when you need to fine-tune the stroke on the machine.
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