
The AirTAC SGCJ200-250 Adjustable Cylinder SGCJ250X100-30 is a genuine double acting, double rod, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 100mm 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.
The nominal 100 mm stroke serves as the maximum travel, allowing you to fine-tune the end position without changing the cylinder itself. Four steel tie rods clamp the aluminum barrel to the covers for high structural rigidity.
Equipped with a G1 air port and a 50 mm piston rod, the unit features a 60 mm adjustable air cushion at each end to absorb kinetic energy. The front-cover packing and buffer gasket are NBR; note that TPU seals are not available on this 250 mm bore. A Viton H high-temperature seal option extends the operating range from -20 to +70 C up to 0-150 C. This plain SKU lacks a magnet and cannot accept position sensors, whereas the -S variant supports CMSG, DMSG and EMSG switches.
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X100-30 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 100 mm |
| Acting type | Double acting, double rod, 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 | 23562 N | 23562 N |
| 0.7 MPa | 32987 N | 32987 N |
| Max (@1.0 MPa) | 4805 kgf | |
SGCJ is double-rod: the rear rod that carries the stroke adjuster passes through the rear cover, so both piston faces lose rod area. Push is shown at the annular-area value (conservative).
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×100 | 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. On Ø250 the blank code is the standard NBR build (no TPU).
Applies up to 5006 kgf of theoretical clamping force at 1.0 MPa to compress heavy pallet loads, with the 30 mm adjuster allowing precise stroke trimming for varying package heights.
Drives heavy industrial gates where the 70 to 100 mm usable extend stroke can be dialed in exactly to the valve seat without swapping the actuator body.
Pushes large metal castings into deburring fixtures, using the 60 mm adjustable cushions to decelerate the 50 mm rod smoothly before impact.
The adjustable stroke is particularly useful when you need to share a spare cylinder across machines with slightly different extend lengths, or when final end-position tuning is required on-site. Mounting options include FA, LB, TC, FTC, TCM1 and TCM2 brackets, all conforming to ISO 15552 mounting-interface dimensions. Because this is a non-magnetized model, it cannot take CMSG or DMSG sensors; you would need the -S variant for position feedback. Even at 100 mm stroke, guiding the load against side forces is recommended to prevent rod wear.
Quick checklist
This 250 mm bore cylinder has a G1 air port and a 50 mm rod.
An external stop screw lets you shorten the extend stroke on-site by up to 30 mm, giving a usable extend range of 70 to 100 mm. The nominal 100 mm stroke is the maximum travel, and the retract end remains fixed. This mechanism only sets the end position and does not lock 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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Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.