
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X800-40S is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 800mm 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.
Generating 24543 N of push force 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 40 mm. The nominal 800 mm stroke remains the maximum travel, yielding a usable 760 to 800 mm window for fine-tuning the end position without changing the hardware. Four steel tie rods clamp the aluminum barrel to the covers, delivering structural rigidity for heavy-duty cycles.
Driven by a G1 pneumatic port and a 50 mm rod, the unit handles a safe working load of roughly 14726 N, which equates to lifting about 1251 kg vertically with a 2:1 safety margin. Because this is a 250 mm bore, TPU seals are unavailable; instead, NBR packings manage the 60 mm adjustable air cushions, with a Viton H option for 0 to 150 C environments. The built-in -S magnet supports CMSG, DMSG and EMSG sensors for position tracking.
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X800-40S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 800 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). |
| ×800 | 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.
Drives large platens to compress goods, using the 40 mm extend adjuster to fine-tune the final stack height on-site without swapping cylinders.
Delivers 24543 N at 0.5 MPa to push heavy parts out of molds, relying on the 60 mm cushions to decelerate the 50 mm rod smoothly.
Shifts massive bulkhead doors across the 800 mm stroke, using the -S magnet and EMSG sensors to confirm open and closed positions.
When sizing this unit, stepping down to a 200 mm bore drops the 0.5 MPa push force to 15708 N, while this 250 mm bore provides 24543 N at the top end. The 40 mm adjustable window is highly useful for sharing a single spare cylinder across multiple stroke variants, letting technicians dial in the exact extend end position on-site. Mounting options include FA, LB, TC, FTC, TCM1 and TCM2 brackets per the ISO 15552 interface. Because the 800 mm stroke is long, always provide external guide rails to prevent rod bending and manage side loads. The -S magnet enables CMSG, DMSG or EMSG electronic switches.
Quick checklist
This 250 mm bore cylinder features a G1 port and delivers 24543 N push / 23562 N pull at 0.5 MPa, and 34360 N push / 32986 N pull at 0.7 MPa. The theoretical maximum force is 5006 kgf at 1.0 MPa.
The external adjuster shortens the extend stroke by up to 40 mm on-site, giving a usable extend range of 760 to 800 mm while the retract end remains fixed. The nominal 800 mm is the maximum travel, and this stop only sets the end position; it 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.
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.