The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X400-10S 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, 400mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X400-10S is a double-acting, single-rod tie-rod cylinder that puts stroke-end fine-tuning directly on the machine. Its rear-cap adjusting screw provides up to 10 mm of retraction from the nominal 400 mm stroke, so commissioning engineers can dial in the exact end position without swapping cylinders or machining external stops. The built-in magnet allows CMSG/DMSG/EMSG sensors to clamp directly onto the barrel for reliable, non-contact position sensing.
With a 20 mm rod and PT1/4 ports, this 63 mm bore cylinder delivers 1559 N of push force at 0.5 MPa and up to 2805 N at the maximum operating pressure of 0.9 MPa. The adjustable air cushion (28 mm length) decelerates the piston smoothly, and the TPU seal works across a standard temperature range of -20 to +70 °C. The body length A(SCJ) is 197 mm plus stroke, making it a compact choice for format-change or wear-compensation applications.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X400-10S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 400 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. |
| ×400 | 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 fine-tune the actuator end-stop on a new assembly line without removing the cylinder, speeding up machine runoff and reducing the need for custom shims.
When a packaging machine switches between box sizes, the SCJ63X400-10S can be quickly adjusted to the new push-off or gating position, minimizing downtime between production runs.
In clamping or pressing fixtures, the adjustable stroke can be periodically advanced to compensate for tooling or pad wear, maintaining consistent clamping force without replacing the cylinder.
Choose the SCJ63 bore when your application needs roughly 1560 N of push force at standard plant air pressure. If you require more force, stepping up to the 80 mm bore provides 2513 N push at 0.5 MPa; for a lighter, more compact solution, the 50 mm bore delivers 982 N. This adjustable-stroke model is ideal when the end position needs field tweaking—if the stroke is fixed and known, the standard SC63 fixed-stroke cylinder is a simpler, cost-effective alternative.
For a drop-in replacement, match the 63 mm bore, 400 mm nominal stroke, 10 mm adjust range, PT port thread, and the built-in magnet (-S suffix). This 400 mm stroke is well within the 1500 mm maximum for the 63 mm bore. At this extended stroke length, ensure the rod is guided externally or consider a guided cylinder if the load applies significant side force, to prevent rod bending and premature seal wear.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 1559 N and the pull force is 1402 N (the difference is due to the single 20 mm rod). At the maximum operating pressure of 0.9 MPa, the push force reaches 2805 N. The adjustable stroke screw does not alter the cylinder's force output.
Yes, if you need the ability to fine-tune the stroke end position by up to 10 mm. The SCJ63X400-10S shares the same mounting footprint and port size as an SC63. Ensure the replacement matches the 400 mm nominal stroke, PT ports, and that your control system can use the built-in magnet for sensors.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.