The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X200-50S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 50 mm range without swapping the cylinder. Ø63mm bore, 200mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X200-50S is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end, offering a 50 mm adjustment range via a rear-cap screw. This model delivers 1559 N of push force at 0.5 MPa and 2805 N at 0.9 MPa, using a 20 mm diameter piston rod and PT1/4 ports. The built-in magnet allows direct mounting of CMSG/DMSG/EMSG sensors for precise end-of-stroke detection without extra brackets.
With a 200 mm nominal stroke and a 28 mm air cushion, this cylinder decelerates loads smoothly, making it suitable for positioning tasks that require fine-tuning during commissioning or format changes. The tie-rod construction ensures durability, and the adjustable screw lets operators dial in the exact stroke end position, reducing mechanical setup time on complex machinery.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X200-50S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 200 mm |
| Stroke adjustment | Up to 50 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. |
| -50 | 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 end-stop position during machine commissioning without swapping cylinders. The 50 mm adjustment range allows engineers to dial in the exact stroke for grippers or clamps on new assembly lines.
Quickly adjust the stroke end for different product sizes on packaging or sorting conveyors. The rear screw provides a mechanical stop that is easily changed between production runs, reducing downtime.
Compensate for tooling or seal wear over time by slightly extending the effective stroke. This keeps processes like pressing or forming within tolerance without immediately replacing the entire cylinder.
Choose the SCJ63 bore when your application needs between 1559 N and 2805 N of push force. If you require less force, consider stepping down to the SCJ50 bore which provides 982 N of push at 0.5 MPa. For higher force demands, the SCJ80 bore offers 2513 N at the same pressure. The adjustable stroke is ideal for applications where the end position must be tuned on-site; if your stroke length is fixed and never changes, the standard SC series without the adjustment mechanism may be a more economical choice.
For this 200 mm stroke, ensure the load is guided to prevent side-loading and rod bending. When replacing this unit, match the bore (63 mm), nominal stroke (200 mm), adjustment range (-50), PT port thread, and the built-in magnet (-S). The basic mounting configuration uses the cylinder body directly, but FA or LB mounts can be added if needed.
Adjustable-stroke checklist
The theoretical push force is 1559 N at 0.5 MPa and 2805 N at 0.9 MPa. The pull force on the rod side is lower due to the 20 mm rod area, providing 1402 N at 0.5 MPa. Always calculate force based on your specific operating pressure.
Yes, the SCJ63X200-50S can replace a standard SC63X200 if you need the adjustable stroke feature. Ensure the port thread (PT), mounting style, and magnet option match. The SCJ body is slightly longer to accommodate the adjusting screw, so verify the available space in your machine.
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.