The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X175-10S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 10 mm range without swapping the cylinder. Ø80mm bore, 175mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X175-10S is a double-acting, single-rod pneumatic cylinder with a rear-cap adjusting screw that lets you fine-tune the stroke end position by up to 10 mm. With an 80 mm bore and a 25 mm rod, it delivers 2513 N of push force at 0.5 MPa, making it a solid choice for medium-duty automation where the final stop point needs on-machine tweaking.
This model includes a built-in magnet (-S), so you can clamp CMSG/DMSG/EMSG reed or solid-state sensors directly onto the tie-rod barrel for accurate end-of-stroke sensing without extra brackets. The body length A(SCJ) is 239 mm, and the adjustable air cushion decelerates the piston smoothly at each end of the 175 mm nominal stroke.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X175-10S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 175 mm |
| Stroke adjustment | Up to 10 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. |
| ×175 | Nominal (maximum) stroke length in mm. |
| -10 | 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 10 mm adjusting screw allows technicians to dial in the exact end-stop position for a gripper or pusher without re-machining mounts or adding external hard stops.
In high-cycle sorting gates, the stroke-end screw can be advanced slightly over time to compensate for wear on the tooling or contact surface, maintaining precise positioning without replacing the cylinder.
On packaging lines that handle different box sizes, the adjustable stroke lets operators quickly change the pusher travel distance by turning the rear screw, reducing downtime between product runs.
Choose the SCJ80 bore when you need around 2500 N of push force at standard shop air. If your load is lighter, stepping down to the 63 mm bore (1559 N push at 0.5 MPa) reduces air consumption and physical size. For heavier work, the 100 mm bore delivers 3927 N push, but requires a larger mounting footprint.
If your application does not require field-adjustable stroke, the fixed-stroke SC80 cylinder is a simpler, cost-effective alternative. For exact replacement, match an SCJ80 with a 175 mm nominal stroke, 10 mm adjust range, PT ports, basic mounting, and the -S magnet option. For strokes over 300 mm, always check for side loading; use an external guide rail or switch to a guided cylinder if the rod is subjected to lateral force.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 2513 N and the pull force is 2268 N (single rod, so push is greater than pull). At the maximum operating pressure of 1.0 MPa, the theoretical push force reaches 5026 N. Always apply a safety factor for dynamic loads.
Yes, if you need the ability to fine-tune the stroke end position. Ensure the nominal stroke (175 mm), bore (80 mm), port thread (PT), and magnet option (-S) match your current setup. The SCJ body is slightly longer than the SC to house the adjusting screw, so check the 239 mm body length A(SCJ) against your available space.
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