The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X130-20 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 20 mm range without swapping the cylinder. Ø63mm bore, 130mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X130-20 is a double-acting, single-rod pneumatic cylinder from AirTAC, engineered with a rear-cap adjusting screw that provides up to 20 mm of field-adjustable stroke-end control. With a 63 mm bore and a nominal 130 mm stroke, this model delivers a push force of 1559 N at 0.5 MPa, making it a strong choice for applications needing precise end-position tuning without swapping the cylinder.
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 integrated air cushion, with a 28 mm cushion length, decelerates the piston smoothly, while the adjustable screw lets operators fine-tune the stroke end during commissioning or format changes. The body length A(SCJ) is 197 mm, providing a compact yet robust package for industrial automation tasks.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X130-20 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 130 mm |
| Stroke adjustment | Up to 20 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. |
| ×130 | Nominal (maximum) stroke length in mm. |
| -20 | 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 20 mm rear adjustment screw allows technicians to dial in the exact stroke end position during initial machine setup, compensating for minor assembly tolerances without needing external hard stops.
On packaging or sorting lines, operators can quickly adjust the cylinder's stroke to handle different product sizes or formats, reducing downtime between production runs.
In clamping or pressing fixtures, the adjustable stroke can be used to take up mechanical wear on tooling or contact surfaces over time, maintaining consistent clamping force and position.
Select the SCJ63X130-20 when you need to fine-tune the stroke end position by up to 20 mm on the machine. If your force requirements are lower, stepping down to a 50 mm bore reduces push force to 982 N at 0.5 MPa; for higher demands, the 80 mm bore provides 2513 N. For applications requiring a fixed, non-adjustable stroke, the standard SC63 series offers a simpler, cost-effective alternative. A direct replacement must match the 63 mm bore, 130 mm nominal stroke, 20 mm adjustment range, PT1/4 ports, basic mounting, and the same SCJ adjustable-stroke design.
Adjustable-stroke checklist
At 0.5 MPa, the cylinder produces 1559 N of push force and 1402 N of pull force. The maximum push force at the 0.9 MPa operating limit is 2805 N. The theoretical force at 1.0 MPa is 318 kgf.
A screw in the rear cap mechanically limits the piston's retraction, shortening the stroke end by up to 20 mm from the 130 mm nominal maximum. This is a mechanical end-stop adjustment, not a speed or pressure control, and it does not hold the position if air pressure is lost.
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