
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X700-75S 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 with a 24543 N push at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder integrates an external adjuster to shorten the extend stroke on-site by up to 75 mm. The nominal 700 mm stroke serves as the maximum travel, meaning the usable extend range is 625-700 mm while the retract end remains fixed. This on-site tuning allows precise end-positioning without physically swapping the actuator. Four steel tie rods clamp the aluminum barrel to the covers for high structural rigidity, and the G1 air port handles the high volume required for rapid cycling.
Dimensionally interchangeable per the ISO 15552 mounting interface, it drops directly into existing large-bore fixtures. It carries a built-in piston magnet for CMSG/DMSG/EMSG switches, and because this is a 250 mm bore, TPU seals are unavailable in favor of standard NBR or high-temp Viton H rated for 0-150 C. The 24543 N output translates to a safe working load of roughly 14726 N, or about 1251 kg lifted vertically with a 2:1 margin. Note that the 60 mm adjustable air cushions only decelerate the piston near stroke end; an external rod lock or pilot-operated check valve is required to hold a load securely on air loss.
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X700-75S |
|---|---|
| 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.
Provides the 24543 N push at 0.5 MPa needed to rotate loaded pallet upenders, using the 75 mm extend adjustment to fine-tune the resting angle without repositioning the machine frame.
Slowly closes large stamping dies at 30-500 mm/s, relying on the 60 mm adjustable air cushions to decelerate the heavy platen and the external stop to dial in the exact 625-700 mm closure distance.
Raises heavy automated storage carriages, where the built-in magnet triggers CMSG/DMSG/EMSG sensors for precise vertical positioning and the G1 port supplies the necessary air volume.
When sizing this actuator, stepping down to a 200 mm bore yields 15708 N of push force at 0.5 MPa, whereas this 250 mm bore provides 24543 N, and there is no larger standard SGCJ option. The 75 mm adjustable window is highly beneficial when sharing a spare cylinder across multiple stroke variants or fine-tuning the end position of a heavy tooling plate on-site. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. The -S suffix confirms the piston magnet is present for CMSG/DMSG/EMSG sensors. Because the 700 mm stroke is substantial, always provide external guide rails to prevent rod bending and side-load damage.
Quick checklist
This 250 mm bore cylinder uses a G1 air port and a M42x2.0 rod thread. It generates 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 force of 5006 kgf at 1.0 MPa.
The external adjuster allows you to shorten the extend stroke on-site by up to 75 mm. The nominal 700 mm stroke is the maximum travel, so the usable extend range is 625-700 mm, while the retract end remains fixed. This mechanism sets the end position and is not a load lock.
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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