The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X160-50S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 50 mm range without swapping the cylinder. Ø80mm bore, 160mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X160-50S is an 80 mm bore double-acting single-rod cylinder with a 50 mm field-adjustable stroke range, letting you fine-tune the stroke end without removing the cylinder. At 0.5 MPa it delivers 2513 N push and 2268 N pull, moving loads up to 160 mm nominal with a PT3/8 port and a 25 mm diameter rod.
A built-in magnet (the -S suffix) allows CMSG/DMSG/EMSG sensors to clamp directly onto the tie-rod barrel for reliable end-of-stroke sensing. The 28 mm air cushion decelerates the piston smoothly, and the rear adjusting screw shortens the stroke end by up to 50 mm—ideal for commissioning trials or format changeovers on packaging lines.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X160-50S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 160 mm |
| Stroke adjustment | Up to 50 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. |
| ×160 | Nominal (maximum) stroke length in mm. |
| -50 | 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 50 mm rear screw lets technicians precisely dial in the stroke end position for a gripper or pusher without swapping cylinders or machining external stops.
Quickly adjust the stroke to handle different box sizes on a case packer. The -S magnet signals the retracted position to the PLC, confirming the cylinder is clear for the next cycle.
In a woodworking clamp, the adjustable stroke compensates for pad wear over time. The 2513 N push force at 0.5 MPa provides ample clamping power, and the sensor confirms clamp engagement.
Choose this SCJ80 when you need the 2513 N push force of an 80 mm bore and the ability to dial in the stroke end on the machine. If your load requires less force, the 63 mm SCJ63 delivers 1559 N push at 0.5 MPa; for heavier work, the 100 mm SCJ100 provides 3927 N. If the stroke is fixed and never needs adjustment, the standard SC80 fixed-stroke cylinder is a simpler alternative.
For a drop-in replacement, match the 80 mm bore, 160 mm nominal stroke, 50 mm adjust range (-50), PT3/8 port, and the -S magnet. This model uses a basic mount; if you need a pivot, order the TC centre trunnion with the F-SC80TC kit. At 160 mm stroke, rod bending is not a primary concern, but for offset loads consider 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 pull force is lower because the 25 mm rod reduces the piston area on the return side). At the maximum 0.9 MPa operating pressure, the push force reaches 4523 N.
Yes, if your existing cylinder is an AirTAC SCJ80 with a 160 mm nominal stroke, a 50 mm adjust range (-50), a built-in magnet (-S), PT ports, and a basic mount. The adjustable stroke end is set by the rear screw; ensure the 50 mm adjustment range covers your required stroke variation.
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