
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X700-30S 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 24543 N of thrust at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder handles heavy tasks with ease. Four steel tie rods clamp the aluminum barrel to the covers for high structural rigidity. The G1 air port feeds the 50 mm piston rod, yielding a theoretical maximum output of 5006 kgf at 1.0 MPa. With a safe working load around 14726 N, it can vertically lift approximately 1251 kg with a 2:1 safety margin.
The -30 code means an external adjuster can shorten the extend stroke on-site by up to 30 mm, giving a usable range of 670 to 700 mm without changing the cylinder itself. This on-site end-position tuning is ideal for shared spares across stroke variants. The retract end remains fixed. A built-in magnet supports CMSG, DMSG, and EMSG sensors. Note that TPU seals are unavailable for this 250 mm bore; NBR is standard, with a Viton H option for 0 to 150 C environments.
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X700-30S |
|---|---|
| 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.
Lifts loaded pallets weighing up to 1251 kg vertically with a 2:1 margin, using the 30 mm adjuster to dial in the exact raise height for different dock levels.
Forms heavy components where the 670 to 700 mm extend window lets operators trim the final pressing position on-site without swapping the cylinder.
Drives large storage shuttle arms, relying on the 60 mm adjustable air cushions to decelerate massive payloads smoothly at the end of travel.
When sizing this unit, the neighboring 200 mm bore offers 15708 N at 0.5 MPa, while the 250 mm bore tops the range at 24543 N, making this the high edge for extreme loads. The adjustable stroke helps when you need to fine-tune the extend end position on-site or want a shared spare across slightly different stroke variants. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2 brackets. The -S suffix means a magnet is present for CMSG, DMSG, or EMSG switches. Because the 700 mm stroke is long, always provide external guide rails to prevent rod bending and absorb side loads.
Quick checklist
It features a G1 air port and a 50 mm rod. At 0.5 MPa it provides 24543 N push and 23562 N pull. At 0.7 MPa it provides 34360 N push and 32986 N pull. The theoretical maximum force is 5006 kgf at 1.0 MPa.
The nominal 700 mm stroke is the maximum. An external stop screw lets you shorten the extend stroke by up to 30 mm on-site, yielding a usable range of 670 to 700 mm. The retract end is fixed. This stop sets the end position and is not a load lock; use an external rod lock or pilot-operated check valve to hold a load.
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.