The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X400-40S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 40 mm range without swapping the cylinder. Ø32mm bore, 400mm nominal stroke, PT1/8 ports and adjustable end cushioning.
The SCJ32X400-40S is a double-acting, single-rod tie-rod cylinder that puts stroke-end fine-tuning directly on the machine. Its rear adjusting screw provides a 40 mm adjustable range, letting you dial in the exact 400 mm nominal stroke end position without swapping the cylinder or adding external hard stops.
With a 12 mm rod, PT1/8 ports, and a 21 mm air cushion, this 32 mm bore unit delivers 402 N of push force at 0.5 MPa and up to 724 N at 0.9 MPa. The built-in magnet (S) allows CMSG/DMSG/EMSG sensors to clamp directly onto the barrel for reliable, non-contact position sensing.
| Model | Airtac SCJ32 Standard Cylinder SCJ32X400-40S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 400 mm |
| Stroke adjustment | Up to 40 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. |
| ×400 | Nominal (maximum) stroke length in mm. |
| -40 | 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.
During machine setup, the 40 mm adjustment screw allows technicians to precisely dial in the 400 mm stroke end position to match tooling or fixtures without iterative disassembly.
In high-cycle pick-and-place systems, the adjustable stroke can be periodically tweaked to compensate for gripper pad wear, maintaining consistent part contact without replacing the actuator.
For small packaging machines handling different box sizes, the stroke can be quickly re-adjusted via the rear screw to suit a new format, reducing changeover time compared to fixed-stroke cylinders.
Choose this model when you need field-adjustable stroke control in a compact 32 mm bore package. If your force requirement grows, stepping up to the 40 mm bore SCJ40 series provides 628 N of push at 0.5 MPa. For applications where the stroke is fixed and never needs adjustment, the standard SC32 series offers a simpler, cost-effective alternative. This unit is a direct replacement for an existing AirTAC SCJ32 cylinder with a 400 mm nominal stroke, 40 mm adjust range, PT ports, basic mounting, and a magnet.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 402 N and the pull force is 345 N. The maximum push force at the 0.9 MPa operating limit is 724 N. Because it is a single-rod cylinder, the push force is always greater than the pull force.
A screw in the rear cap acts as an internal, adjustable end stop for the piston. Turning the screw shortens the stroke end by up to 40 mm from the 400 mm nominal maximum, allowing you to fine-tune the piston's stopping position without affecting the cylinder's force or speed.
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