The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X200-100S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 100 mm range without swapping the cylinder. Ø63mm bore, 200mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X200-100 is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end, letting you fine-tune the 200 mm nominal stroke by up to 100 mm using the rear-cap screw. It delivers 1559 N of push force at 0.5 MPa (2805 N at 0.9 MPa) through a 20 mm diameter piston rod, with a 28 mm air cushion decelerating the piston near the end of travel. The built-in magnet allows CMSG/DMSG/EMSG sensors to clamp directly onto the tie-rod barrel for reliable position feedback.
This model's 100 mm adjustment range is the widest standard option for the 63 bore, making it ideal for commissioning trials, format changeovers, or processes where the end-stop needs frequent re-setting without swapping the cylinder. The body length A(SCJ) is 197 mm, and the PT1/4 ports keep it compatible with common pneumatic fittings. It operates on 40 µm filtered air from 0.15 to 1.0 MPa and withstands temperatures from -20 to +70 °C with its standard TPU seals.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X200-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 200 mm |
| Stroke adjustment | Up to 100 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. |
| ×200 | Nominal (maximum) stroke length in mm. |
| -100 | 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.
A packaging line running boxes of three different lengths uses the 100 mm adjustment range to quickly dial in the correct pusher stop position for each batch, eliminating mechanical change parts.
In a woodworking clamp, the adjustable stroke compensates for material thickness variations up to 100 mm, ensuring consistent clamping pressure without re-plumbing the circuit.
During machine commissioning, the screw is used to precisely set the actuator's end-of-stroke position. Over time, it can be re-adjusted to take up mechanical wear in the tooling, extending the machine's service life.
Choose the SCJ63 bore when your application needs around 1560 N of push force at standard plant pressure. If you require less force, the SCJ50 provides 982 N push at 0.5 MPa; for more, the SCJ80 delivers 2513 N. The 100 mm adjustable stroke is particularly useful when you need to accommodate multiple product sizes on one machine. If your stroke length is fixed after commissioning, a standard SC63 fixed-stroke cylinder is a simpler, lower-cost alternative. For a direct replacement, match the 63 mm bore, 200 mm nominal stroke, 100 mm adjustment range, PT port thread, and the built-in magnet (-S). At this 200 mm stroke, ensure the rod is not subjected to significant side loads; if it is, add an external linear guide or switch to a guided cylinder to prevent rod bending and premature seal wear.
Adjustable-stroke checklist
Because it is a single-rod cylinder, push and pull forces are different. At 0.5 MPa, it provides 1559 N pushing and 1402 N pulling. At the maximum operating pressure of 0.9 MPa, the push force increases to 2805 N. The 100 mm adjustment range does not change the cylinder's force output.
Yes, if you need the ability to adjust the stroke end. The SCJ63X200-100 is a direct dimensional replacement for another AirTAC SCJ63 with a 200 mm nominal stroke and 100 mm adjustment range. It is not a direct drop-in for a fixed-stroke SC63, as the SCJ body is longer to house the adjusting screw. Ensure your mounting and port connections (PT1/4) match.
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