Airtac SGC Standard Cylinder SGC125X280S
The AirTAC Airtac SGC Standard Cylinder SGC125X280S is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 280mm 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
- Stroke280 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 SGC125X280S
Delivering 6136 N of push force at 0.5 MPa, this double-acting large-bore cylinder brings serious muscle to ISO 15552 fixtures. The SGC125X280S features a 125 mm bore, a 280 mm stroke, and a built-in piston magnet for position sensing. 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 service life. Air enters via a G1/2 port, driving the 32 mm chrome-plated rod at speeds of 30-500 mm/s.
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. The -S suffix means it is fully compatible with CMSG, DMSG, and EMSG reed or electronic switches. Adjustable air cushions at both ends absorb end-of-stroke impact, and standard TPU seals handle temperatures from -20 to +70 C, with a Viton H option available for environments up to 150 C.
Airtac SGC Standard Cylinder SGC125X280S Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC125X280S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 280 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 SGC125X280S
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×280 | 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 SGC125X280S Is Used
Press Fit Assembly
Drives bearings into heavy machinery housings, utilizing the 6136 N push force to seat components precisely without hydraulic fluid leaks.
Pallet Stops
Acts as a high-strength stopper gate on heavy-duty conveyor lines, extending 280 mm to halt loaded pallets weighing up to 313 kg safely.
Material Forming
Provides consistent clamping pressure on metal bending jigs, where the four tie rods ensure the body resists deflection under off-center loads.
Is the Airtac SGC Standard Cylinder SGC125X280S the Right Cylinder?
Choosing this 125 mm bore makes sense when you need around 3682 N of actual working force. If your payload is lighter, there is no smaller bore in the SGC family, so you would simply regulate the pressure down. If your application requires more power, stepping up to the 160 mm bore yields 10053 N of push at 0.5 MPa. Because this model has a 280 mm stroke, mounting it rigidly is critical to prevent rod bending under side loads. At this length, always use FA or FB flange mounts, or TC trunnion brackets, rather than relying solely on front-threaded attachments. The -S magnet allows seamless integration of CMSG or EMSG sensors for end-position confirmation.
Remember that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered. The adjustable cushion only decelerates the piston near the stroke ends and does not act as a brake. If your machinery requires strict load holding on pneumatic failure, install an external rod lock or a pilot-operated check valve in the line.
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 SGC125X280S FAQ
This 125 mm bore cylinder features 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, the push increases to 8590 N and the pull to 8028 N. The theoretical maximum force is 1251 kgf at 1.0 MPa.
Yes, it is dimensionally interchangeable per the ISO 15552 mounting interface, so it drops directly into standard large-bore fixtures. The -S suffix indicates a built-in magnet, allowing you to mount CMSG, DMSG, or EMSG switches directly onto the barrel for position detection.
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