The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X120-10S 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, 120mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X120-10S is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end, letting you fine-tune the piston stop position by up to 10 mm without replacing the unit. Its 63 mm bore generates a push force of 1559 N at 0.5 MPa, making it a robust actuator for medium-duty positioning tasks where commissioning or format changes demand a tweakable end point.
This model includes a built-in magnet (-S suffix), so CMSG/DMSG/EMSG reed or solid-state sensors clamp directly onto the tie-rod barrel for non-contact end-of-stroke detection. The 20 mm rod, PT1/4 ports, and 28 mm air cushion provide smooth deceleration, while the 197 mm body length (A dimension) keeps the footprint compact for its force class.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X120-10S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 120 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. |
| ×120 | 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.
Fine-tune the retract or extend stop by up to 10 mm during machine commissioning, eliminating the need for shims or external hard stops.
Adjust the stroke end to compensate for tooling or gripper wear in pick-and-place systems, maintaining precise engagement without reprogramming.
Quickly adapt the cylinder's end position for different product sizes on a packaging line, reducing changeover time compared to swapping fixed-stroke cylinders.
Choose the SCJ63X120-10S when 1559 N of push force at 0.5 MPa is sufficient and you need to dial in the stroke end on the machine. If more force is required, step up to the 80 mm bore (2513 N push at 0.5 MPa); for a lighter, more compact solution, the 50 mm bore offers 982 N. The adjustable stroke is ideal for taking up wear or accommodating part tolerances—if a fixed stroke is acceptable, the standard SC63X120 is a simpler alternative. For direct replacement, match the 63 mm bore, 120 mm nominal stroke, 10 mm adjust range, PT ports, basic mounting, and the -S magnet option.
Adjustable-stroke checklist
At 0.5 MPa, this 63 mm bore cylinder delivers 1559 N of push force and 1402 N of pull force. The push force is higher because the single rod reduces the piston area on the pull side.
Yes, if you need the ability to fine-tune the stroke end by up to 10 mm. The SCJ63X120-10S shares the same mounting, port, and force characteristics as an SC63, but its body is slightly longer to house the rear adjusting screw. Ensure your machine has clearance for the 197 mm body length.
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