Airtac SGC Standard Cylinder SGC125X40S
The AirTAC Airtac SGC Standard Cylinder SGC125X40S is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 40mm 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
- Stroke40 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 SGC125X40S
Delivering 6136 N of push force at 0.5 MPa, this double-acting large-bore actuator handles heavy short-stroke tasks with ease. The SGC125X40S features a 125 mm bore and a 40 mm stroke, utilizing a robust tie-rod design where four steel rods clamp the aluminum barrel to the covers for maximum rigidity. Because it adheres to the ISO 15552 mounting interface, it drops directly into existing large-bore fixtures without custom brackets. A heterogeneous two-way piston seal maintains an internal oil reservoir, ensuring long operational life.
Equipped with a built-in piston magnet (-S), this unit supports CMSG, DMSG, and EMSG switches for precise position detection. The G1/2 port and M27x2.0 rod thread streamline integration into your pneumatic setup. 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 standard TPU seal handles temperatures from -20 to +70 C, while adjustable 40 mm air cushions at both ends protect your machinery from end-of-stroke impact.
Airtac SGC Standard Cylinder SGC125X40S Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC125X40S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 40 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 SGC125X40S
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×40 | 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 SGC125X40S Is Used
Stamping Press Ejection
Uses the 6136 N push force to knock heavy stamped metal panels out of a die quickly over the 40 mm travel distance.
Pallet Diverting Gate
Short 40 mm stroke actuates a heavy-duty routing gate on a packaging line, relying on the rigid tie-rod build to absorb repeated lateral shocks.
Heavy Carton Flap Folding
Provides the high torque needed to fold thick cardboard flaps on large bulk shipping containers prior to sealing.
Is the Airtac SGC Standard Cylinder SGC125X40S the Right Cylinder?
When sizing this 125 mm bore model, verify if the 6136 N push at 0.5 MPa provides adequate margin, or step up to the 160 mm bore offering 10053 N if your payload increases. As the smallest bore in the SGC family, there is no smaller standard option, making this the baseline for large-bore requirements. The included -S magnet allows seamless mounting of CMSG or DMSG sensors along the extrusion. Remember that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered; the air cushion only decelerates the piston near stroke end and will not hold a suspended load. For vertical applications, install an external rod lock or pilot-operated check valve to prevent dropping.
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 SGC125X40S FAQ
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. The theoretical maximum force is 1251 kgf at 1.0 MPa.
Yes, it is dimensionally interchangeable per the ISO 15552 mounting interface, fitting standard FA flanges or TC trunnions. The -S suffix indicates a built-in magnet, allowing you to attach CMSG, DMSG, or EMSG electronic switches for end-of-stroke 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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