
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X700-30 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 thrust in a large-bore format, this ISO 15552 tie-rod cylinder pushes with 24543 N and pulls with 23562 N at 0.5 MPa. The four steel tie rods clamp the aluminium barrel securely to the covers, and the G1 air port feeds a 50 mm piston rod with an M42x2.0 thread. Adjustable 60 mm air cushions at both ends absorb the heavy shock loads inherent to this size class.
The -30 code means an external adjuster can shorten the extend stroke by up to 30 mm on site, letting you fine-tune the end position from 670 to 700 mm without swapping the cylinder. It handles a safe working load of about 14726 N, which translates to lifting roughly 1251 kg vertically with a 2:1 margin. Note that TPU seals are not offered on this 250 mm bore; it uses NBR packings, with a Viton H option for 0 to 150 C environments.
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X700-30 |
|---|---|
| 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.
Raises loaded pallets in automated distribution hubs, using the 30 mm extend adjuster to dial in exact platform heights without repositioning the cylinder.
Ejects dense metal parts from large stamping presses, relying on the 60 mm cushions to decelerate the massive 23562 N pull force safely.
Drives heavy stamping heads downward, where the on-site stroke shortening window accommodates different die thicknesses on the same press frame.
This 250 mm bore sits at the top of the SGCJ range, so there is no larger standard size to step up to. If you need less force, the 200 mm bore provides 15708 N of push at 0.5 MPa. The adjustable stroke feature is highly useful here: you can stock one 700 mm unit and dial the extend end-position in 30 mm to cover slight mechanical variations across multiple fixtures. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2 brackets. Because this is a non-magnet SKU, it cannot accept CMSG, DMSG, or EMSG sensors; you must specify an -S variant for position detection. Finally, at a 700 mm stroke, the heavy 50 mm rod requires external guide rails to prevent side-load bending.
Quick checklist
It features a G1 air port and generates 24543 N push and 23562 N pull at 0.5 MPa. At 0.7 MPa, push increases to 34360 N and pull to 32986 N. The theoretical maximum force is 5006 kgf at 1.0 MPa.
The external adjuster lets you shorten the extend stroke by up to 30 mm on site, giving a usable extend range of 670 to 700 mm. The nominal 700 mm stroke is the maximum, and the retract end remains fixed. This mechanism sets the end position and does not lock the load; you need an external rod lock or pilot-operated check valve to hold a load on air loss.
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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