The AirTAC Airtac AIRTAC SCJ63 Standard Cylinder SCJ63X80-10 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, 80mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X80-10 is a double-acting, single-rod pneumatic cylinder from AirTAC's adjustable-stroke SCJ series, offering a nominal 80 mm stroke with a 10 mm rear-end adjustment range. This allows you to fine-tune the stroke end position on the machine without replacing the cylinder, making it ideal for commissioning and setup. The 63 mm bore delivers a robust 1559 N of push force at 0.5 MPa, with a 20 mm diameter piston rod and PT1/4 ports.
This tie-rod cylinder features a variable air cushion (28 mm length) for smooth deceleration and operates reliably between 0.15 and 1.0 MPa. The body length (A dimension) is 197 mm, providing a compact yet powerful solution. This basic model comes with TPU seals, PT threads, and no magnet, ready for straightforward integration into your pneumatic system.
| Model | Airtac AIRTAC SCJ63 Standard Cylinder SCJ63X80-10 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 80 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. |
| ×80 | 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 adjustment screw lets technicians quickly fine-tune the actuator's end-stop during initial machine commissioning, eliminating the need for shims or external hard stops.
On a packaging line, the stroke can be slightly altered to accommodate different box sizes or product heights, reducing downtime between production runs without swapping the cylinder.
In clamping or pressing fixtures, the adjustable stroke can be extended slightly over time to compensate for mechanical wear on tooling or seals, maintaining consistent clamping force.
Choose the SCJ63 bore when your application needs a push force around 1559 N at 0.5 MPa. If you need more force, step up to the 80 mm bore, which provides 2513 N of push force. For a lighter, more compact solution, the 50 mm bore delivers 982 N. This adjustable-stroke model is the right choice when you need to dial in the end position during setup or changeover; if your stroke is fixed and never needs field adjustment, the standard SC63 fixed-stroke cylinder is a more economical alternative. For a direct replacement, match the 63 mm bore, 80 mm nominal stroke, 10 mm adjustment range, PT port thread, and basic mounting style.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 1559 N and the pull force is 1402 N. The push force is higher because it acts on the full piston area, while the pull force is reduced by the 20 mm rod area. The maximum push force at the 0.9 MPa operating limit is 2805 N.
Yes, if you need the 10 mm field-adjustable stroke feature. The SCJ63X80-10 has the same 63 mm bore, 80 mm nominal stroke, port size, and mounting footprint as a standard SC63. Ensure your machine can accommodate the slightly longer body length (A=197 mm) required for the rear adjusting mechanism.
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