
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X700-50S is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 700mm 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 massive output for heavy industry, this large-bore ISO 15552 tie-rod cylinder generates 24543 N of push force at 0.5 MPa. Four steel tie rods clamp the aluminum barrel to the covers, ensuring structural rigidity under high stress. The G1 air port feeds the 50 mm piston rod, while a 60 mm adjustable air cushion decelerates the payload at each end.
The -50 code defines an external adjuster window that lets you shorten the extend stroke on-site by up to 50 mm, dropping the usable extension to 650 mm without swapping the cylinder. This on-site tuning is perfect for dialing in exact end positions. With a safe working load around 14726 N, it can lift roughly 1251 kg vertically with a 2:1 margin. The -S suffix adds a piston magnet for CMSG, DMSG, or EMSG sensors, and because this is a 250 mm bore, high-temp Viton H seals are used instead of TPU.
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X700-50S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 700 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). |
| ×700 | 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.
Dial in the exact bottoming out position of a 250 mm bore forming press on-site using the 50 mm extend shortening window, avoiding cylinder replacement.
Shift massive 1251 kg vertical loads in a distribution hub, relying on the 24543 N push force and 60 mm adjustable cushions to stop smoothly.
Secure heavy industrial molds by tuning the extend end-point within the 650 to 700 mm range, using the built-in magnet for DMSG sensor feedback.
When sizing this unit, stepping down to a 200 mm bore yields 15708 N of push at 0.5 MPa, while this 250 mm bore tops out at 24543 N at the same pressure, with a theoretical maximum of 5006 kgf at 1.0 MPa. The 50 mm adjustable window is highly useful when you need to share a spare cylinder across slightly different stroke variants or fine-tune a final pressing position on the factory floor. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2 brackets. Because the 700 mm stroke is long, always use an external guide to prevent rod bending under side loads. Note that a plain cylinder drifts on air loss, so specify an external rod lock for suspended loads.
Quick checklist
This 250 mm bore cylinder features a G1 air port and a 50 mm rod. It delivers 24543 N push and 23562 N pull at 0.5 MPa, 34360 N push and 32986 N pull at 0.7 MPa, with a theoretical maximum of 5006 kgf at 1.0 MPa.
The external adjuster lets you shorten the extend stroke by up to 50 mm on-site, reducing the usable extension from the 700 mm maximum down to 650 mm. The retract end remains fixed, and this mechanism only sets the end position rather than locking the load.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Large-bore cylinders built to order — confirm lead time.
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