The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X175-10S 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. Ø63mm bore, 175mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X175-10S is a double-acting, single-rod tie-rod cylinder with a field-adjustable stroke end, letting you fine-tune the piston stop position by up to 10 mm without removing the unit. With a 63 mm bore and a 20 mm rod, it delivers 1559 N of push force at 0.5 MPa, making it a solid mid-range actuator for tasks that need a precise, repeatable end point.
A built-in magnet (the -S suffix) allows direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors along the barrel for reliable end-of-stroke detection. The cylinder uses PT1/4 ports, has a 28 mm air cushion for smooth deceleration, and its body length A(SCJ) is 197 mm, providing a compact footprint for its power class.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X175-10S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 175 mm |
| Stroke adjustment | Up to 10 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, 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 | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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. |
|---|---|
| 63 | 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 commissioning, the 10 mm adjusting screw lets technicians dial in the exact stroke end for a gripper or pusher without fabricating custom hard stops, speeding up line bring-up.
In clamping or pressing fixtures, the adjustable stroke compensates for tooling wear or material thickness variation over time, maintaining consistent clamp force without reprogramming.
For packaging machines handling different box sizes, the rear screw provides quick stroke-end adjustment to match a new product format, reducing changeover downtime compared to swapping fixed-stroke cylinders.
Step up to an 80 mm bore if your application demands more than the 1559 N push force this model provides at 0.5 MPa (the SCJ80 delivers 2513 N). If your stroke length is fixed and you never need to adjust the end position, the standard SC63X175 fixed-stroke cylinder is a simpler, more cost-effective choice. For a direct replacement, match the 63 mm bore, 175 mm nominal stroke, 10 mm adjust range, PT thread, and the -S magnet option; this unit uses a basic mount with no additional brackets.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 1559 N and the pull force is 1402 N (the difference is due to the 20 mm single rod). The maximum push force at the 0.9 MPa operating limit is 2805 N.
Yes, this is a direct replacement for any AirTAC SCJ63 adjustable-stroke cylinder with a 175 mm nominal stroke, a 10 mm adjust range, PT ports, and a magnet. Verify your mounting style matches the basic configuration, or order the correct mounting kit (FA, LB, or TC) separately.
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