The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X160-75S 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. Ø50mm bore, 160mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ50X160-75S is a double-acting, single-rod pneumatic cylinder that puts stroke-end fine-tuning directly into the rear cap. With a 50 mm bore and a nominal 160 mm stroke, it delivers 982 N of push force at 0.5 MPa, while the 75 mm adjusting screw lets you dial back the stroke end without removing the cylinder from the machine. The 20 mm piston rod and PT1/4 ports keep it compatible with common AirTAC SC-series mounting and flow controls.
A built-in magnet (the -S suffix) allows CMSG, DMSG, or EMSG reed and solid-state sensors to clamp directly onto the tie-rod barrel, giving you clean, non-contact position feedback. The adjustable air cushion, with a 21 mm cushion length, decelerates the piston smoothly, and the TPU seals handle standard compressed air from -20 to +70 °C. This model is a practical drop-in when you need to commission a stroke by feel or accommodate part tolerance drift over time.
| Model | Airtac SCJ50 Standard Cylinder SCJ50X160-75S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 160 mm |
| Stroke adjustment | Up to 75 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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, 21 mm |
| Max stroke | Up to 1200 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 | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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. |
|---|---|
| 50 | Bore size in mm. |
| ×160 | 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.
Dial in the exact stroke end-stop during machine commissioning. The 75 mm adjustment range lets technicians fine-tune the actuator position without cutting brackets or swapping cylinders, speeding up line start-up.
Quickly adapt a pusher or diverter stroke for different product sizes. The rear adjusting screw provides 75 mm of stroke-end variation, making batch-size changeovers fast and tool-free.
Take up mechanical play or seal wear in a clamping or pressing station. The adjustable stroke end compensates for gradual dimensional changes, maintaining consistent contact force without reprogramming the PLC.
Choose the SCJ50 when your application needs up to 982 N of push force at standard shop air. If you require more force, stepping up to the 63 mm bore provides 1559 N push at the same 0.5 MPa. For applications where the stroke never needs field adjustment, the fixed-stroke SC50 cylinder is a simpler, slightly shorter alternative. This SCJ50X160-75S is a direct replacement for another AirTAC SCJ50 with a 160 mm nominal stroke, 75 mm adjust range, PT ports, and a magnet, using basic mounting. For strokes of 300 mm and above on a 50 mm bore, consider an external guide rail or a guided cylinder to protect the 20 mm rod from side-load bending.
Adjustable-stroke checklist
At 0.5 MPa, the cylinder generates 982 N of push force and 825 N of pull force. The maximum operating push force at 0.9 MPa is 1767 N. Because it is a single-rod cylinder, the push force is always greater than the pull force due to the rod area on the return side.
Yes, if you need field-adjustable stroke. The SCJ50X160-75S shares the same bore, rod diameter, and mounting footprint as an SC50, but adds a rear adjusting screw that shortens the stroke end by up to 75 mm. Ensure your machine has clearance for the slightly longer SCJ body length (A=194 mm) and that the nominal 160 mm stroke matches your requirement.
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