The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X500-40S 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, 500mm nominal stroke, PT1/8 ports and adjustable end cushioning.
The SCJ32X500-40S is a 32 mm bore double-acting single-rod cylinder that lets you fine-tune the stroke end by up to 40 mm via the rear adjusting screw, eliminating the need for external hard stops during commissioning. With a 12 mm rod and PT1/8 ports, it delivers 402 N of push force at 0.5 MPa and up to 724 N at the maximum operating pressure of 0.9 MPa.
This model includes a built-in magnet (-S suffix), so CMSG/DMSG/EMSG reed and solid-state sensors clamp directly onto the tie-rod barrel for reliable end-of-stroke detection. The body length A is 182 mm, and the adjustable air cushion decelerates the piston smoothly within a 21 mm cushion zone, protecting the end cap from impact at speeds up to 800 mm/s.
| Model | Airtac SCJ32 Standard Cylinder SCJ32X500-40S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 500 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. |
| ×500 | 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.
Dial in the exact stroke end position on a packaging machine jaw set without swapping cylinders, using the 40 mm rear screw adjustment to accommodate different product sizes.
The built-in magnet allows CMSG/DMSG sensors to be positioned along the 500 mm stroke for precise mid-stroke or end-of-stroke signals, easily recalibrated after adjusting the stroke end.
On a small-bore diverter gate, the adjustable stroke compensates for pad wear over time, maintaining a consistent gate position without mechanical shimming.
Choose the SCJ32X500-40S when you need a compact 32 mm bore with field-adjustable stroke end for format changes or wear take-up on a 500 mm stroke axis. If 402 N push at 0.5 MPa is marginal, stepping up to the SCJ40 bore delivers 628 N push at the same pressure. For applications that do not require stroke adjustability, the fixed-stroke SC32X500-S saves cost and length. This cylinder replaces any AirTAC SCJ32 with a 500 mm nominal stroke, 40 mm adjust range, PT ports, basic mounting, and a magnet sensor option.
Adjustable-stroke checklist
At 0.5 MPa operating pressure, the push force is 402 N and the pull force is 345 N. The pull force is lower because the 12 mm piston rod reduces the effective piston area on the return stroke. At the maximum operating pressure of 0.9 MPa, push force reaches 724 N.
A rear-cap adjusting screw lets you shorten the stroke end by up to 40 mm from the nominal 500 mm maximum. It is a direct dimensional replacement for an AirTAC SCJ32X500-40S of the same configuration. If you are replacing a fixed-stroke SC32, ensure the slightly longer SCJ body length (A=182 mm) fits your mounting envelope and that you need the adjustability feature.
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