
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X500-40S is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 500mm stroke, G1 air ports and adjustable end cushioning. Its large-bore tie-rod build delivers high thrust and drops into standardized ISO 15552 mounting on heavy automation.
Delivering 24543 N of thrust at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder integrates a 40 mm external adjuster to shorten the extend stroke on-site. Four steel tie rods clamp the aluminum barrel to the covers, providing structural rigidity for heavy-duty cycles. The built-in piston magnet supports CMSG, DMSG, and EMSG switches for precise position detection, while the G1 port handles high airflow volumes. A 60 mm adjustable air cushion at each end decelerates the massive moving load smoothly.
The external stop screw lets you fine-tune the usable extend stroke from 460 to 500 mm without changing the cylinder mounting, as the retract end remains fixed. This on-site adjustability is ideal for shared spares across stroke variants. It handles a safe working load of roughly 14726 N, translating to about 1251 kg lifted vertically with a 2:1 margin. For high-temperature environments up to 150 C, the Viton H seal option is available, as TPU is not offered on this 250 mm bore.
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X500-40S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 500 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1 |
| Rod thread | M42×2.0 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 60 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SGC datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Thread options: PT (blank) / G. TPU seals are not available for the Ø250 bore (NBR / Viton only).
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 24544 N | 23562 N |
| 0.7 MPa | 34361 N | — |
| Max (@1.0 MPa) | 5006 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×500 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
SGC-family variants: SGC (double acting), SGCD (double rod), SGCJ (adjustable stroke). Mounting: LB / FA / FB / CA / CB / CR / TC / FTC / TCM1 / TCM2. Seals: TPU (blank) / Viton H / NBR N.
Raises loaded pallets in automated distribution hubs, using the 40 mm adjuster to set the exact discharge height for varying pallet sizes.
Pushes heavy blanks into a hydraulic press, relying on the 60 mm adjustable cushion to decelerate the 500 mm extend stroke safely.
Secures large injection molds by providing up to 34360 N of force at 0.7 MPa, with the external stop allowing precise mold gap tuning.
When sizing this unit, the 250 mm bore sits at the top of the SGCJ range, pushing 24543 N at 0.5 MPa compared to 15708 N for the 200 mm bore. If your application requires less force, stepping down to a 200 mm bore saves space and air consumption. The 40 mm adjustable window is particularly useful when you need to dial in the exact end-of-stroke position after installation, allowing one spare cylinder to serve multiple stroke lengths. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2 brackets. Because the standard stroke is 500 mm, the large bore and long extension create a high bending moment; always use an external guide or rod-end support to prevent side-load damage.
Quick checklist
At 0.5 MPa it provides 24543 N push and 23562 N pull. At 0.7 MPa it provides 34360 N push and 32986 N pull. The theoretical max is 5006 kgf at 1.0 MPa. The air port is G1, the rod is 50 mm with an M42x2.0 thread, and it features a 60 mm adjustable cushion.
An external stop screw lets you shorten the extend stroke by up to 40 mm on-site, giving a usable extend range of 460 to 500 mm. The nominal 500 mm stroke is the maximum, and the retract end is fixed. This stop only sets the end position and does not lock the load; a separate rod lock or pilot-operated check valve is required for load holding.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Large-bore cylinders built to order — confirm lead time.
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.