The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X1000-50SH is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 50 mm range without swapping the cylinder. Ø63mm bore, 1000mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X1000-50SH is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke, delivering 1559 N of push force at 0.5 MPa. Its rear-cap adjusting screw provides up to 50 mm of stroke-end reduction, allowing machine builders to fine-tune the piston stop position during commissioning or format changes without swapping the cylinder. This model is equipped with a built-in magnet for sensor mounting and high-temperature Viton seals.
With a 20 mm rod diameter and PT1/4 ports, this 63 mm bore cylinder handles a maximum standard stroke of 1500 mm. The adjustable cushion, with a length of 28 mm, decelerates the piston smoothly near the stroke end. At the maximum operating pressure of 0.9 MPa, it generates a substantial 2805 N of push force, suitable for demanding end-stop positioning tasks on long-stroke applications.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X1000-50SH |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 1000 mm |
| Stroke adjustment | Up to 50 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. |
| ×1000 | Nominal (maximum) stroke length in mm. |
| -50 | 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 50 mm adjustment screw lets technicians quickly set the exact stroke end for a 1000 mm travel during initial machine setup, eliminating the need for physical hard stops.
Ideal for pusher or diverter stations on long conveyors where the end position must be fine-tuned to align with different product widths or pallet sizes.
With Viton seals rated for 0 to +150°C, this cylinder is suited for actuating dampers or gates in hot air or steam environments, where stroke adjustment is needed for precise flow control.
Select the SCJ63X1000-50SH when you need to precisely dial in a long 1000 mm stroke end position on a machine. If the 1559 N push force at 0.5 MPa is insufficient, stepping up to an 80 mm bore provides 2513 N, while a 50 mm bore offers 982 N for lighter, more compact installations. The adjustable stroke is ideal for absorbing tolerance stack-up; for a fixed, unchangeable stroke, the standard SC series is a more economical choice.
For a stroke of 1000 mm, managing side loads is critical to prevent rod bending. Always use an external guide rail or a guided cylinder if the load is not perfectly axial. This unit is a direct replacement for another AirTAC SCJ63X1000-50SH cylinder with a magnet, Viton seals, and PT ports, matching the same nominal stroke and 50 mm adjustment range.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 1559 N and the pull force is 1402 N. The maximum push force at the 0.9 MPa operating limit is 2805 N. The pull force is lower due to the area of the 20 mm piston rod.
You can replace an SC63X1000 with this SCJ63X1000-50SH if you need the 50 mm stroke-end adjustability. The SCJ body is slightly longer to house the adjusting screw. Ensure your mounting and porting (PT1/4) are compatible, and note this model includes a magnet and Viton seals.
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