The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X150-100 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 100 mm range without swapping the cylinder. Ø63mm bore, 150mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X150-100 is a double-acting, single-rod pneumatic cylinder designed for applications where the stroke end position must be field-tuned. A rear-cap adjusting screw provides up to 100 mm of retraction from the nominal 150 mm stroke, letting you dial in the exact stopping point during commissioning or format changes without replacing the cylinder.
With a 63 mm bore and 20 mm rod, this tie-rod cylinder generates 1559 N of push force and 1402 N of pull force at 0.5 MPa. The 28 mm air cushion at each end decelerates the piston smoothly, and the PT1/4 ports supply standard flow. The body length A is 197 mm, making it a compact choice for space-constrained adjustable-stroke tasks.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X150-100 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 150 mm |
| Stroke adjustment | Up to 100 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. |
| ×150 | Nominal (maximum) stroke length in mm. |
| -100 | 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.
Speed up machine commissioning by fine-tuning the stroke end in 100 mm increments until the actuator perfectly aligns with tooling or stops, then lock the screw.
Adjust the retracted position to handle different product sizes on a packaging line without changing the cylinder or adding external hard stops.
Take up mechanical play or seal wear over time by slightly extending the effective stroke via the rear screw, maintaining consistent clamping or pressing force.
Choose the SCJ63 when you need to fine-tune stroke end position on the fly. If your application requires a fixed, repeatable stroke with no adjustment, the standard SC63 is a simpler alternative. For guided loads or high side-force scenarios, consider pairing this cylinder with an external guide or switching to a guided cylinder. Stepping up to an 80 mm bore provides 2513 N of push force at the same pressure. As a direct replacement, match the SCJ63, 150 mm nominal stroke, 100 mm adjust range, PT1/4 ports, and basic mounting style.
Adjustable-stroke checklist
At 0.5 MPa, it generates 1559 N pushing and 1402 N pulling. Because it is a single-rod cylinder, the push force is greater than the pull force due to the rod area on the return side.
No, the rear screw only sets the stroke end position. It does not act as a mechanical lock. If the load must hold without air pressure, an external rod brake or pilot-operated check valve is required.
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