
The AirTAC Airtac SGC Standard Cylinder SGC125X300FA is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 300mm 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 double-acting large-bore cylinder is built on a genuine ISO 15552 tie-rod framework. Four steel tie rods clamp the aluminum barrel to the front and rear covers, ensuring high structural rigidity while the two-way piston seal maintains an internal oil reservoir for long service life. Because it adheres to the ISO 15552 mounting interface, it drops directly into existing large-bore fixtures and shares standard accessory dimensions.
This specific FA flange-mounted configuration uses a 125 mm bore, a 300 mm stroke, and a G1/2 air port. 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. Note that this SKU lacks the -S magnet, so it cannot accept CMSG, DMSG, or EMSG position switches without upgrading to the magnet-equipped variant.
| Model | Airtac SGC Standard Cylinder SGC125X300FA |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 300 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). |
| ×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 6136 N push force needed to eject formed metal parts from heavy stamping presses, utilizing the FA flange for rigid front-plate mounting.
Acts as a robust 300 mm stroke diversion gate on high-speed packaging lines, physically halting pallets weighing up to 313 kg with a safe 2:1 margin.
Generates reliable separation force for large injection mold halves, leveraging the tie-rod construction to withstand repetitive high-impact cycles.
When sizing this 125 mm bore unit, verify your actual load requirements against its 6136 N push capacity at 0.5 MPa. If your application demands less force, dropping down is not an option within the SGC family as this is the smallest available bore; stepping up to the 160 mm bore yields 10053 N of push force at the same pressure. The integrated FA flange makes front mounting straightforward, but remember that a standard cylinder drifts when air is removed or the valve is centered. The adjustable air cushions only decelerate the piston near the stroke ends and do not function as a locking brake, so incorporate an external rod lock or pilot-operated check valve if you need to hold a suspended load. Additionally, with a 300 mm stroke, ensure your guiding mechanism prevents side-load rod bending.
Quick checklist
This 125 mm bore cylinder features a G1/2 air port and generates 6136 N push / 5734 N pull at 0.5 MPa, and 8590 N push / 8028 N pull at 0.7 MPa. Its theoretical maximum force is 1251 kgf at 1.0 MPa.
No, this specific SKU does not include the -S magnet option, meaning it cannot accept CMSG, DMSG, or EMSG switches. You must select the -S variant (e.g., SGC125X300FA-S) if your application requires electronic position sensing.
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Covers non-human-caused product damage.
Large-bore cylinders built to order — confirm lead time.
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