Airtac SGC Standard Cylinder SGC125X270
The AirTAC Airtac SGC Standard Cylinder SGC125X270 is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 270mm 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.
- BoreØ125 mm
- Stroke270 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SGC Standard Cylinder SGC125X270
Delivering 6136 N of push force at 0.5 MPa, this double-acting large-bore cylinder handles heavy-duty automation tasks with ease. The SGC125X270 features a 125 mm bore, a 270 mm stroke, and a G1/2 air port. It is built with a genuine ISO 15552 mounting interface, allowing it to drop directly into existing large-bore fixtures and standard accessory kits without redesign.
Four steel tie rods clamp the aluminum barrel to the front and rear covers, providing high structural rigidity under large-bore thrust. The internal two-way piston seal retains an oil reservoir for continuous lubrication and long service life. Because this specific SKU lacks the -S magnet suffix, it cannot accept CMSG, DMSG, or EMSG magnetic switches; position sensing requires external limit switches or upgrading to the -S variant. For practical sizing, plan for about 3682 N of real work at 0.5 MPa, which safely lifts roughly 313 kg vertically with a 2:1 margin.
Airtac SGC Standard Cylinder SGC125X270 Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC125X270 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 270 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).
Theoretical Output Force (Ø125mm)
| 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.
Model Code: Airtac SGC Standard Cylinder SGC125X270
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×270 | 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.
Where the Airtac SGC Standard Cylinder SGC125X270 Is Used
Press Ejection Systems
Provides the 6136 N push force needed to eject formed metal parts from heavy stamping presses, utilizing the 270 mm stroke to clear the die area completely.
Pallet Discharge Gates
Actuates heavy diverter gates on high-throughput packaging lines, where the ISO 15552 mounting interface allows straightforward replacement of legacy cylinders.
Automated Clamping Fixtures
Secures large welded frames during machining operations, relying on the rigid four-tie-rod construction to maintain stability under fluctuating loads.
Is the Airtac SGC Standard Cylinder SGC125X270 the Right Cylinder?
When sizing this 125 mm bore unit, compare your actual load against its 6136 N push force at 0.5 MPa. If your application demands less power, there is no smaller SGC bore available, so a different series would be required; if you need more thrust, stepping up to the 160 mm bore yields 10053 N at 0.5 MPa. Since this model lacks the -S magnet, it cannot host magnetic sensors, so verify your detection method. At a 270 mm stroke, side-load risks are moderate, but always ensure the load is guided to prevent rod bending. Note that a standard cylinder drifts when air is lost or the valve is centered, as the air cushion only decelerates the piston near the end of stroke; for suspended loads, install an external rod lock or pilot-operated check valve.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Long-stroke side load — support the rod end
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load; support long strokes at the rod end.
- check Set cushions to minimum, then release gradually.
- check Use correct mounting accessory (LB/FA/FB/CA/CB/CR/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SGC Standard Cylinder SGC125X270 FAQ
The SGC125X270 has a G1/2 air port. It generates a push force of 6136 N and a pull force of 5734 N at 0.5 MPa. At 0.7 MPa, the push force is 8590 N and the pull force is 8028 N. The theoretical maximum force is 1251 kgf at 1.0 MPa.
This specific SKU does not include a magnet, so it cannot accept CMSG, DMSG, or EMSG magnetic switches without upgrading to an -S variant. Structurally, the four steel tie rods clamp the assembly together, ensuring high rigidity and making the body dimensionally interchangeable per the ISO 15552 mounting interface for easy fixture integration.
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1-Year Warranty
Covers non-human-caused product damage.
Made to Order
Large-bore cylinders built to order — confirm lead time.
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