The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X30-20S 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, 30mm nominal stroke, PT1/8 ports and adjustable end cushioning.
The SCJ32X30-20S is a double-acting, single-rod tie-rod cylinder that puts a 20 mm field-adjustable stroke range at your fingertips. With a 12 mm diameter piston rod and M10x1.25 rod thread, it delivers 402 N of push force at 0.5 MPa, making it ideal for light-duty positioning tasks where the end-stop needs fine-tuning after installation.
A built-in magnet allows direct mounting of CMSG/DMSG/EMSG sensors along the barrel for reliable end-of-stroke detection. The rear adjusting screw shortens the stroke end without changing the cylinder body, and the PT1/8 port keeps plumbing compact. At 0.9 MPa, push force reaches 724 N.
| Model | Airtac SCJ32 Standard Cylinder SCJ32X30-20S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 30 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. |
| ×30 | 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.
Adjust the stroke end on a new assembly fixture during initial setup without swapping shims or hard stops, saving commissioning time.
Compensate for mechanical wear on a conveyor diverter gate by periodically adjusting the cylinder's end position to maintain a tight seal.
Set a precise clamping depth for delicate electronic components, using the 20 mm adjustment to prevent over-travel and part damage.
Choose the SCJ32X30-20S when you need to dial in a precise stroke end on a compact machine. If the 402 N push force at 0.5 MPa is marginal, stepping up to the 40 mm bore provides 628 N. For applications needing a fixed, non-adjustable stroke, the standard SC series is a simpler alternative. A direct replacement must match the 32 mm bore, 30 mm nominal stroke, 20 mm adjust range, PT ports, and the -S magnet option.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 402 N and the pull force is 345 N. Because it is a single-rod cylinder, the pull force is lower due to the area of the 12 mm rod. At the maximum operating pressure of 0.9 MPa, the push force increases to 724 N.
Yes, if you need the ability to adjust the stroke end. The SCJ32X30-20S has the same bore and nominal stroke as an SC32X30 but includes a rear adjusting screw. Ensure your mounting and porting (PT1/8) are compatible, and note the body length is slightly longer than the fixed-stroke version.
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