The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X215-30 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 30 mm range without swapping the cylinder. Ø63mm bore, 215mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X215-30 is a double-acting, single-rod pneumatic cylinder that puts stroke-end fine-tuning directly in your hands. Its rear-cap adjusting screw provides a 30 mm field-adjustable range, letting you dial in the exact stop position without swapping the cylinder or adding external hard stops. With a 63 mm bore, it delivers 1559 N of push force at 0.5 MPa (2805 N at 0.9 MPa), driven by a 20 mm diameter piston rod.
This tie-rod cylinder uses a PT1/4 port and includes an adjustable air cushion (28 mm length) to decelerate the load smoothly at end of travel. The body length A is 197 mm for the SCJ configuration, making it slightly longer than a fixed-stroke SC of the same bore. It is a genuine AirTAC unit built for commissioning trials, format changeovers, and any application where the stroke length needs periodic tweaking.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X215-30 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 215 mm |
| Stroke adjustment | Up to 30 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. |
| ×215 | Nominal (maximum) stroke length in mm. |
| -30 | 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.
Fine-tune the end position during machine commissioning without draining the air system. The 30 mm adjustment screw lets technicians quickly dial in the perfect stroke after installation.
Adjust the cylinder stroke on the fly when a packaging line switches between box sizes. The rear screw provides a repeatable 30 mm window to accommodate different product heights without mechanical rework.
Take up mechanical slack in a clamping or pressing fixture over time. As tooling wears, the adjustable stroke end can be extended slightly within the 30 mm range to maintain consistent contact force.
Step up to an 80 mm bore (2513 N push at 0.5 MPa) if the 63 mm bore's 1559 N is marginal for your load, or down to a 50 mm bore (982 N) to save space and air consumption when force requirements are lighter. If your application never needs stroke adjustment, a fixed-stroke SC63X215 is a simpler, more cost-effective choice. For a direct replacement, match an SCJ63X215-30 with a PT port, basic mounting, and no magnet; the adjustable range must be 30 mm to maintain the same setup. At a 215 mm stroke, ensure the load is guided externally if significant side forces are present to prevent rod bending.
Adjustable-stroke checklist
The theoretical push force at 0.5 MPa is 1559 N, and the pull force on the retract stroke is 1402 N (accounting for the 20 mm rod area). At the maximum operating pressure of 0.9 MPa, the push force reaches 2805 N. Always apply a safety factor for real-world dynamic loads.
Yes, the SCJ63X215-30 is dimensionally compatible with the SC series for the same bore and port type, though the body is slightly longer to house the adjustment mechanism. Ensure the 30 mm adjustment range does not interfere with your machine's envelope, and match the PT port thread and basic mounting style.
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