
The AirTAC Airtac SGC Standard Cylinder SGC250X300FA is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 300mm 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 for heavy-duty automation, this double-acting tie-rod cylinder generates 24543 N of push force at 0.5 MPa. The SGC250X300FA relies on four steel tie rods clamping the aluminum barrel to the front and rear covers, ensuring high rigidity under extreme loads while a two-way piston seal maintains an oil reservoir for long service life.
Because this is a 250 mm bore unit, TPU seals are not available; instead, it uses NBR front-cover packing and buffer gaskets, with a Viton H option for 0-150 C high-temperature environments. It features a G1 air port and an M42x2.0 rod thread. For practical sizing, plan for about 14726 N of real work at 0.5 MPa, which equates to lifting roughly 1251 kg vertically with a 2:1 safety margin. Note that this SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG position switches.
| Model | Airtac SGC Standard Cylinder SGC250X300FA |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 300 mm |
| Acting type | Double acting |
| 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.
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×300 | 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 34360 N push force at 0.7 MPa required to drive large stamping dies and form thick steel plates in automotive lines.
Secures large mold halves with 23562 N of pull force at 0.5 MPa, using the rigid tie-rod build to withstand high clamping reactions.
Actuates heavy indexing arms to position full pallets, leveraging the FA flange mount for secure attachment to the robotic joint.
When sizing this 300 mm stroke actuator, compare it against the adjacent SGC bores: the 200 mm class provides 15708 N push at 0.5 MPa, while this 250 mm bore reaches 24543 N, representing the top tier of the series with a theoretical maximum of 5006 kgf at 1.0 MPa. The integrated FA flange mounting makes it straightforward to secure to heavy machine frames. Because the stroke is 300 mm, ensure external guide rails are used to prevent rod bending under offset loads.
Remember that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered, as the adjustable 60 mm air cushions only decelerate the piston near the stroke ends rather than locking it. To suspend a load safely during an emergency stop, incorporate an external pilot-operated check valve or a dedicated rod lock.
Quick checklist
This 250 mm bore cylinder features a G1 air port, an M42x2.0 rod thread, and a 50 mm piston rod. It delivers 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.
This specific SKU lacks the -S magnet, meaning it cannot accept CMSG, DMSG, or EMSG switches without upgrading to the -S variant. However, it is dimensionally interchangeable per the ISO 15552 mounting interface, so it drops directly into existing large-bore ISO 15552 fixtures and utilizes standard FA flange accessories.
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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