
The AirTAC Airtac SCJ32 Standard Cylinder SCJ32X125-100 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 100 mm range without swapping the cylinder. Ø32mm bore, 125mm nominal stroke, PT1/8 ports and adjustable end cushioning.
The AirTAC SCJ32X125-100 is a double-acting, single-rod adjustable-stroke cylinder that delivers 402 N of push force at 0.5 MPa. Its rear-cap adjusting screw provides a full 100 mm of stroke-end adjustment, letting you dial in the exact 125 mm nominal stroke without swapping the cylinder. The 12 mm diameter piston rod and 21 mm air cushion work together to handle precise end-position tuning and smooth deceleration.
This genuine AirTAC SCJ unit uses a PT1/8 port and an M10x1.25 rod thread, fitting compact automation tasks where field-adjustable stroke saves commissioning time. The body length A(SCJ) is 182 mm, slightly longer than a fixed-stroke SC to house the adjustment mechanism. Operating pressure spans 0.15–1.0 MPa, with a proof pressure of 1.5 MPa, and the standard TPU seal works from -20 to +70 °C.
| Model | Airtac SCJ32 Standard Cylinder SCJ32X125-100 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø32 mm |
| Nominal stroke | 125 mm |
| Stroke adjustment | Up to 100 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. |
| ×125 | Nominal (maximum) stroke length in mm. |
| -100 | 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 100 mm adjustment screw lets technicians quickly dial in the perfect stroke end during initial machine setup without needing to swap out cylinders or fabricate custom hard stops.
Adjust the stroke end on the fly to match different package widths on a conveyor line. The 402 N push force at 0.5 MPa is well-suited for lightweight diverting and sorting tasks.
In clamping or pressing fixtures, the adjustable stroke can be extended over time to compensate for pad wear or tooling compression, maintaining consistent clamping force without reprogramming.
Choose the SCJ32X125-100 when you need to fine-tune the stroke end by up to 100 mm on the machine—ideal for format changes or wear take-up. If you require more push force, step up to the SCJ40 series, which provides 628 N at 0.5 MPa. For applications that don't need field adjustability, a fixed-stroke SC32X125 cylinder is a simpler, cost-effective alternative. This model is a direct dimensional replacement only for another AirTAC SCJ32 cylinder with a 125 mm nominal stroke, 100 mm adjust range, PT1/8 ports, and basic mounting. For strokes of 300 mm or more, consider an external guide or a guided cylinder to protect the 12 mm rod from side-load bending.
Adjustable-stroke checklist
At 0.5 MPa, the cylinder generates 402 N of push force and 345 N of pull force. The maximum push force at the 0.9 MPa operating limit is 724 N. These values are identical to a fixed-stroke SC32 cylinder.
You can replace it if you need the adjustable stroke feature, but the SCJ body is slightly longer (182 mm) to house the adjusting screw. Ensure your mounting space can accommodate the extra length. The port, rod thread, and mounting footprints are otherwise compatible.
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