
The AirTAC SCJ32 Standard Cylinder SCJ32X75-30S is a genuine double-acting DOUBLE-ROD air cylinder whose rear rod carries the stroke ADJUSTER: the stroke end is field-adjustable within a 30 mm range without swapping the cylinder. Ø32mm bore, 75mm nominal stroke, PT1/8 ports and adjustable end cushioning.
The SCJ32X75-30S is a double-acting, double-rod cylinder with a 30 mm rear stroke-end adjustment, letting you fine-tune the piston stop without changing the unit.
This model includes a built-in magnet, so CMSG/DMSG/EMSG sensors clamp directly onto the tie-rod barrel for reliable end-of-stroke detection. The 21 mm air cushion at each end decelerates the piston smoothly, and the body length A is 182 mm.
| Model | Airtac SCJ32 Standard Cylinder SCJ32X75-30S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 75 mm |
| Stroke adjustment | Up to 30 mm (rear adjusting screw) |
| Acting type | Double acting (double 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 adjuster on the rear rod sets the stroke end position. Confirm against the product label before installation. Thread options: PT (standard) / G.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 346 N | 346 N |
| 0.7 MPa | 484 N | — |
| Max (@1.0 MPa) | 70 kgf | |
SCJ is double-rod: the rear rod that carries the stroke adjuster passes through the rear cover, so both piston faces lose rod area. Push is shown at the annular-area value (conservative), lower than a single-rod SC push of the same bore. 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. |
| ×75 | 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.
During machine setup, the 30 mm screw adjustment lets technicians dial in the exact stroke end for gripper or pusher mechanisms without swapping cylinders.
On a packaging line, adjust the stroke to accommodate different box widths, ensuring a compact 32 mm bore actuator consistently pushes items onto the correct lane.
In repetitive clamping fixtures, the adjustable stroke end takes up mechanical wear on contact surfaces over time, maintaining consistent clamping pressure without reprogramming.
Choose the SCJ32 when you need a compact adjustable stroke up to 75 mm nominal. A fixed-stroke SC32 is a better fit when the end position never changes and you want the simplest possible setup. For direct replacement, match the 32 mm bore, 75 mm nominal stroke, 30 mm adjust range, PT ports, basic mount, and the magnet option (-S) to retain sensor compatibility.
Adjustable-stroke checklist
The maximum push force at 0.9 MPa is 724 N.
A screw in the rear cap sets the stroke end position within a 30 mm range. Turning the screw shortens the effective stroke from the nominal 75 mm down to a minimum of 45 mm, without affecting the cylinder's bore or force output.
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