The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X225-50S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 50 mm range without swapping the cylinder. Ø32mm bore, 225mm nominal stroke, PT1/8 ports and adjustable end cushioning.
The SCJ32X225-50S is a double-acting, single-rod tie-rod cylinder that puts fine stroke-end tuning directly on the machine. Its rear adjusting screw provides up to 50 mm of field-adjustable stroke reduction from the 225 mm nominal maximum, so you can dial in the exact end position during commissioning or changeover without swapping cylinders or adding external hard stops.
This 32 mm bore model delivers 402 N of push force and 345 N of pull force at 0.5 MPa, with a 12 mm diameter piston rod and PT1/8 ports. The built-in magnet (suffix -S) allows CMSG/DMSG/EMSG sensors to clamp directly onto the barrel for reliable end-of-stroke sensing. The body length A(SCJ) is 182 mm, and the adjustable air cushion provides smooth deceleration over a 21 mm cushion length.
| Model | Airtac SCJ32 Standard Cylinder SCJ32X225-50S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 225 mm |
| Stroke adjustment | Up to 50 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. |
| -50 | 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 50 mm adjustable stroke lets technicians fine-tune the end position on a new assembly line without machining custom stops, speeding up initial machine bring-up.
Quickly adjust the push stroke for different box sizes on a packaging line by turning the rear screw, eliminating mechanical change parts and reducing downtime between batches.
As gripper pads or tooling tips wear down over thousands of cycles, the stroke can be incrementally extended via the adjusting screw to maintain consistent contact without replacing the cylinder.
Choose the SCJ32 when you need a compact, adjustable-stroke cylinder with up to 402 N of push force at 0.5 MPa. If your application calls for more force, step up to the 40 mm bore SCJ40, which provides 628 N of push force at the same pressure. For applications that do not require field-adjustable stroke, the fixed-stroke SC32 series offers a simpler, more cost-effective alternative.
To replace an existing SCJ32X225-50S, match the 32 mm bore, 225 mm nominal stroke, 50 mm adjust range, PT port thread, basic mounting, and the -S magnet option. For strokes of 225 mm, ensure the rod is not subjected to significant side loading; if lateral forces are present, consider an external guide rail or a guided cylinder to prevent rod bending and premature seal wear.
Adjustable-stroke checklist
At 0.5 MPa, this 32 mm bore cylinder generates 402 N of push force and 345 N of pull force. The push force is higher because the single rod reduces the effective piston area on the return stroke. At the maximum operating pressure of 0.9 MPa, the push force reaches 724 N.
Yes, provided you need the 50 mm stroke-end adjustability. The SCJ32X225-50S matches the mounting footprint and porting of an SC32 with a 225 mm stroke, but the body length A(SCJ) is 182 mm, which is slightly longer than the fixed-stroke version to accommodate the adjusting mechanism. Ensure the -S magnet option is matched if your existing setup uses sensors.
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