The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X150-10S 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, 150mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X150-10S is a double-acting, single-rod AirTAC cylinder that gives you on-machine stroke fine-tuning via a rear-cap adjusting screw. With a 63 mm bore producing 1559 N of push force at 0.5 MPa and a 10 mm adjustable range, it lets commissioning engineers dial in the exact stroke end position without swapping the cylinder or adding external hard stops.
This model includes a built-in magnet (the -S suffix), so standard CMSG/DMSG/EMSG reed and solid-state sensors clamp directly onto the tie-rod barrel for reliable end-of-stroke detection. The 20 mm piston rod, PT1/4 ports, and 28 mm air cushion suit general automation tasks where the stroke length needs a final tweak after installation.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X150-10S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 150 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. |
| ×150 | 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 adjusting screw lets technicians precisely set the stroke end position during machine startup, eliminating the need to machine custom stops or swap cylinders to get the actuator throw exactly right.
In pneumatic clamping or pressing fixtures, the adjustable stroke compensates for tooling wear or workpiece thickness variations over time, maintaining consistent clamp force without reprogramming or mechanical shimming.
On packaging or assembly lines running multiple product sizes, operators can quickly adjust the cylinder stroke end to accommodate a new box height or component position, reducing changeover downtime significantly.
Choose this 63 mm bore for mid-range force requirements; it delivers 1559 N push at 0.5 MPa. If your load needs less force, the 50 mm bore SCJ50 series provides 982 N push, saving air consumption and space. For heavier loads, step up to the 80 mm bore which outputs 2513 N push at the same pressure. The SCJ adjustable-stroke design is the right pick when the machine stroke requires field adjustment during commissioning, format changes, or wear take-up. If your application needs a fixed, repeatable stroke without the adjusting screw, select a standard SC fixed-stroke cylinder instead. For direct replacement, match a genuine AirTAC SCJ63 cylinder with a 150 mm nominal stroke, -10 adjust range, PT ports, basic mounting, and the -S magnet option.
Adjustable-stroke checklist
At 0.5 MPa operating pressure, the 63 mm bore generates 1559 N of push force and 1402 N of pull force (the pull force is lower because the 20 mm piston rod reduces the effective area on the return stroke). At the maximum operating pressure of 1.0 MPa, theoretical push force reaches 318 kgf.
Yes, provided your machine can accommodate the slightly longer body length of the SCJ series (body length A is 197 mm for the 63 bore). This is a direct dimensional replacement for another AirTAC SCJ63X150-10S. To replace a fixed-stroke SC63, you must verify that the rear adjusting screw housing does not interfere with adjacent structures and that the 10 mm stroke reduction range meets your process needs.
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