The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X130-75 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 75 mm range without swapping the cylinder. Ø80mm bore, 130mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X130-75 is an 80 mm bore double-acting, single-rod pneumatic cylinder with a rear-cap adjusting screw that provides up to 75 mm of stroke-end reduction, letting you fine-tune the 130 mm nominal stroke on the machine without swapping the cylinder. At 0.5 MPa it delivers 2513 N push and 2268 N pull, with a 25 mm diameter piston rod and PT3/8 ports, making it a capable mid-range actuator for applications that need a repeatable, field-settable end position.
This genuine AirTAC tie-rod cylinder uses a 28 mm air cushion to decelerate the piston quietly, and the body length A(SCJ) is 239 mm. The adjustable screw only sets the stroke end—it does not change the bore force rating or act as a speed controller. Operating pressure is 0.15–1.0 MPa with a speed range of 30–800 mm/s, and the standard TPU seal works from -20 to +70 °C.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X130-75 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 130 mm |
| Stroke adjustment | Up to 75 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT3/8 |
| Rod thread | M20×1.5 |
| 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, 28 mm |
| Max stroke | Up to 1500 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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. |
|---|---|
| 80 | Bore size in mm. |
| ×130 | Nominal (maximum) stroke length in mm. |
| -75 | 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 75 mm adjustable stroke lets integrators quickly find the optimal end-stop position during machine setup without machining spacer blocks or ordering multiple fixed-stroke cylinders.
On packaging or assembly lines that switch between product sizes, the rear screw can be reset to change the pusher or stop position in minutes, reducing downtime between batches.
In clamping or pressing fixtures where tooling or pads wear over time, the adjustable stroke end can be periodically advanced to maintain consistent contact force and position without replacing the actuator.
Choose the SCJ80X130-75 when you need to dial in a stroke end position during commissioning, format changes, or to take up mechanical wear, and the 75 mm adjustment range covers your variation. If you require more push force, step up to the 100 mm bore SCJ100 series which provides 3927 N at 0.5 MPa; if space or force requirements are lower, the 63 mm bore SCJ63 offers 1559 N. For a fixed, non-adjustable stroke with identical mounting, the SC80 series is a direct alternative. A matching replacement must share the 80 mm bore, 130 mm nominal stroke, 75 mm adjust range, PT3/8 ports, and basic mounting—verify the SCJ code suffix matches your current unit. At a 130 mm stroke, rod side-loading is generally not a concern with proper alignment, but for offset loads consider adding an external guide rail.
Adjustable-stroke checklist
At the standard 0.5 MPa operating pressure, the push force is 2513 N and the pull force is 2268 N (the difference is due to the single 25 mm rod reducing the piston area on the return side). At the maximum operating pressure of 1.0 MPa, the theoretical push force reaches 5026 N.
Yes, provided the SCJ's 130 mm nominal stroke and 75 mm adjustment range cover your required motion. The SCJ body is slightly longer due to the adjusting mechanism, so check the 239 mm body length A(SCJ) against your available space. Mounting accessories from the SCJ subset (Basic, FA, LB, TC) are compatible, but note that FB flange and CA/CB clevis mounts are not available for the SCJ series.
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