Airtac SGC Standard Cylinder SGC125X275S
The AirTAC Airtac SGC Standard Cylinder SGC125X275S is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 275mm 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
- Stroke275 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 SGC125X275S
Generating 6136 N of push force at 0.5 MPa, this double-acting large-bore actuator handles heavy-duty positioning with ease. Built to ISO 15552 mounting-interface dimensions, it drops directly into existing large-bore fixtures without custom brackets. The four steel tie rods clamp the aluminum barrel to the covers, providing high structural rigidity under heavy thrust, while the two-way piston seal maintains an internal oil reservoir for long mechanical life.
Equipped with a 275 mm stroke and a built-in piston magnet (-S), this unit supports CMSG, DMSG, and EMSG electronic or reed switches for end-of-stroke detection. It uses a G1/2 air port and an M27x2.0 rod thread. 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 SGC125X275S Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC125X275S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 275 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 SGC125X275S
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×275 | 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 SGC125X275S Is Used
Pallet Diversion
Pushes heavy timber or steel pallets off a high-throughput main conveyor line using its 6136 N thrust and 275 mm travel.
Press Ejection
Cycles horizontally to eject formed metal parts from a hydraulic press bed, relying on the steel tie-rod frame for rigidity.
Gate Actuation
Opens and closes heavy weighted sorting gates in a parcel distribution hub, using the -S magnet for position feedback.
Is the Airtac SGC Standard Cylinder SGC125X275S the Right Cylinder?
When sizing this 125 mm bore against the rest of the SGC family, step down if your load is lighter to save air volume, or step up to the 160 mm bore (10053 N push at 0.5 MPa) if you need significantly more thrust. This 275 mm stroke falls well under the 1500 mm standard maximum, keeping side-load risks low, but always ensure rigid guidance on the driven payload to prevent rod bending. Because the base model is double-acting, it will drift and drop its load if air pressure is lost or the valve is centered. The adjustable air cushion at both ends only decelerates the piston near stroke end, so specify an external rod lock or pilot-operated check valve for suspended or gravity-loaded applications.
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 SGC125X275S FAQ
This 125 mm bore cylinder uses a G1/2 air port and generates a push force of 6136 N and a pull force of 5734 N at 0.5 MPa. At 0.7 MPa, push increases to 8590 N and pull to 8028 N. The theoretical maximum force is 1251 kgf at 1.0 MPa.
Yes, the body is dimensionally interchangeable per the ISO 15552 mounting interface, so it accepts standard ISO 15552 foot, flange, and trunnion brackets. Because this SKU includes the -S magnet, you can directly mount CMSG, DMSG, or EMSG sensors for position detection.
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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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Most inquiries answered within 7-8 hours.
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