The AirTAC Airtac AIRTAC SCJ63 Standard Cylinder SCJ63X500-10S 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, 500mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X500-10S is a 63 mm bore, double-acting single-rod cylinder with a 500 mm nominal stroke and a 10 mm rear adjusting screw for fine-tuning the stroke end position. It delivers 1559 N of push force at 0.5 MPa and up to 2805 N at the maximum operating pressure of 0.9 MPa, while the pull force is 1402 N at 0.5 MPa due to the 20 mm rod diameter. The built-in magnet allows for direct mounting of CMSG/DMSG/EMSG sensors for piston position feedback.
The adjustable stroke mechanism is integrated into the rear cap, allowing operators to shorten the stroke end by up to 10 mm without disassembling the cylinder. This model features a 28 mm air cushion for smooth deceleration and uses PT1/4 ports with an M16x1.5 rod thread. Its tie-rod construction and TPU seals make it a robust choice for general industrial automation where stroke length needs on-machine calibration.
| Model | Airtac AIRTAC SCJ63 Standard Cylinder SCJ63X500-10S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 500 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. |
| ×500 | 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.
The 10 mm rear adjusting screw lets technicians precisely dial in the actuator's end stop during machine commissioning, eliminating the need for shims or external hard stops on a 500 mm stroke.
In clamping or pressing fixtures, the adjustable stroke can be used to take up mechanical wear on tooling or workpieces over time, maintaining consistent contact force without reprogramming.
For packaging or sorting lines handling different product sizes, the stroke can be quickly adjusted by up to 10 mm to accommodate a new format, reducing changeover time significantly.
Choose the SCJ63X500-10S when you need a 500 mm stroke with the ability to dial in the exact end position during setup. If your force requirement is lower, stepping down to a 50 mm bore reduces push force to 982 N at 0.5 MPa; for higher demands, an 80 mm bore provides 2513 N. For applications where the stroke length is permanently fixed, a standard SC63X500 cylinder is a more economical alternative. This SCJ cylinder is a direct replacement for any AirTAC SCJ63X500-10S with a PT port and built-in magnet.
With a 500 mm stroke, be mindful of side-loading on the piston rod. If the load is not guided externally, rod deflection can cause premature seal wear. In such cases, consider adding an external linear guide or switching to a guided cylinder assembly to ensure reliable long-term operation.
Adjustable-stroke checklist
The push force is 1559 N at 0.5 MPa and 2805 N at 0.9 MPa. The pull force is lower at 1402 N (0.5 MPa) because the 20 mm piston rod reduces the effective area on the return stroke.
A screw in the rear cap limits the piston's retraction. By turning the screw, you can shorten the stroke end by up to 10 mm from the nominal 500 mm. It adjusts the mechanical stop position, not the cylinder's speed or force.
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