The AirTAC Airtac AIRTAC SCJ63 Standard Cylinder SCJ63X282-10 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, 282mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X282-10 is a double-acting, single-rod pneumatic cylinder from AirTAC's SCJ series, engineered with a rear-cap adjusting screw that provides a 10 mm field-adjustable stroke-end range. This allows machine builders to fine-tune the piston stop position for commissioning or format changes without replacing the cylinder. With a 63 mm bore, it delivers 1559 N of push force and 1402 N of pull force at 0.5 MPa, making it a robust mid-range actuator.
This tie-rod cylinder uses a 20 mm diameter piston rod, PT1/4 ports, and an M16x1.5 rod thread for secure tooling attachment. The adjustable air cushion is 28 mm long, providing smooth deceleration, and the SCJ body length is 197 mm, slightly longer than a fixed-stroke SC of the same bore to accommodate the adjustment mechanism. It operates on 40 µm filtered air from 0.15 to 1.0 MPa and is rated for speeds of 30-800 mm/s.
| Model | Airtac AIRTAC SCJ63 Standard Cylinder SCJ63X282-10 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 282 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. |
| ×282 | 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 adjustment screw allows operators to dial in the exact stroke end position during machine commissioning, compensating for assembly tolerances without mechanical rework.
On packaging lines, the adjustable stroke lets you set the precise push distance for different box sizes, eliminating the need to swap cylinders during format changeovers.
In clamping or pressing fixtures, the screw can be advanced over time to take up for tooling or pad wear, maintaining consistent clamping force without replacing the actuator.
Choose the SCJ63X282-10 when your application requires a nominal 282 mm stroke with the ability to precisely shorten the end position by up to 10 mm during setup. If you need more force, stepping up to the 80 mm bore provides 2513 N of push force at 0.5 MPa. For a simpler, fixed-stroke solution without the adjustment screw, the standard SC63X282 is a direct alternative. A direct replacement must match the 63 mm bore, 282 mm nominal stroke, 10 mm adjust range, PT port thread, and basic mounting configuration.
At this stroke length, consider the potential for side-loading on the 20 mm rod. If the load is not guided externally, rod deflection can cause premature seal wear. In such cases, adding an external guide rail or selecting a guided cylinder assembly is recommended to ensure long service life.
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.
A rear-cap screw physically limits the piston's retraction stroke end within a 10 mm range, letting you fine-tune the stop position on the machine. Pick an SCJ when you need this field adjustability for setup or format changes; choose a fixed-stroke SC if your stroke length is permanent and you want a simpler, slightly shorter cylinder.
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