
The AirTAC Airtac SGC Standard Cylinder SGC125X45 is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 45mm stroke, G1/2 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 6136 N of push force at 0.5 MPa, this large-bore double-acting cylinder handles heavy short-stroke automation tasks. The aluminium barrel is clamped by four steel tie rods for high rigidity, while the two-way piston seal maintains an internal oil reservoir to ensure long service life. Plan for about 3682 N of real work at 0.5 MPa, which equates to lifting roughly 313 kg vertically with a 2:1 safety margin.
Built to the ISO 15552 mounting interface, it drops directly into existing large-bore fixtures and shares standard accessory dimensions. The bore dictates a G1/2 air port and an M27x2.0 rod thread. This specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG or EMSG position switches; choose the -S variant if sensing is required.
| Model | Airtac SGC Standard Cylinder SGC125X45 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 45 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M27×2.0 |
| 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, 40 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 | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 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). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×45 | 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.
Uses the 6136 N push force to knock heavy stamped metal panels out of a die within a tight 45 mm travel.
Folds corrugated cardboard flaps on large industrial pallets prior to strapping, leveraging the short stroke.
Secures thick steel plates during welding by applying over 3600 N of safe working clamping force.
For a 125 mm bore, the SGC series does not offer a smaller size, so if 6136 N at 0.5 MPa is excessive, consider an SGC160X45 which provides 10053 N if you need to step up. The 45 mm stroke is well below the 500 mm threshold, so side-load risks are minimal. Note that a plain cylinder drifts when air is lost or a valve is centred; the adjustable 40 mm air cushions only decelerate the piston near the end of travel, so add an external rod lock or pilot-operated check valve if the load must be held.
Quick checklist
At 0.5 MPa it provides 6136 N push and 5734 N pull. At 0.7 MPa it provides 8590 N push and 8028 N pull. The theoretical maximum force is 1251 kgf at 1.0 MPa, and the air port size is G1/2.
Yes, it is dimensionally interchangeable per the ISO 15552 mounting interface, allowing it to drop into standard LB, FA, FB, CA, CB or TC mounting setups. The tie-rod build adds rigidity for large-bore thrust loads.
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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Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.