Airtac SGC Standard Cylinder SGC125X25
The AirTAC Airtac SGC Standard Cylinder SGC125X25 is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 25mm 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
- Stroke25 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 SGC125X25
Delivering 6136 N of push force at 0.5 MPa, this double-acting 125 mm bore cylinder is built for short-stroke heavy-duty tasks. The SGC125X25 features a genuine ISO 15552 mounting interface, ensuring dimensional interchangeability with standard large-bore fixtures and accessories. Four steel tie rods clamp the aluminum barrel to the covers, providing high rigidity under large-bore thrust, while a two-way piston seal maintains an internal oil reservoir for long service life.
Operating with a 25 mm stroke and a G1/2 air port, it provides rapid, high-impact actuation. Plan for about 3682 N of real work at 0.5 MPa, which safely lifts roughly 313 kg vertically with a 2:1 margin. Because this SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG position switches. The standard TPU seal handles temperatures from -20 to +70 C, with Viton H available for 0-150 C environments.
Airtac SGC Standard Cylinder SGC125X25 Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC125X25 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 25 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 SGC125X25
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×25 | 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 SGC125X25 Is Used
Heavy-Duty Stamping
Provides rapid 6136 N impact force for short-stroke stamping and marking operations in metal fabrication lines.
Automotive Brake Clamping
Generates massive holding pressure for clamping heavy brake components or engine blocks during machining.
Plastic Injection Molding
Acts as a high-force ejector or short-stroke gate operator on large plastic injection molding machinery.
Is the Airtac SGC Standard Cylinder SGC125X25 the Right Cylinder?
When sizing this 125 mm bore unit, consider the adjacent SGC options to match your exact force requirements. Stepping up to the 160 mm bore raises the 0.5 MPa push force to 10053 N, while the 125 mm bore itself is the smallest in the SGC family, meaning there is no smaller standard option in this series. For applications needing precise end-position sensing, select the -S magnet variant to enable CMSG, DMSG, or EMSG switches.
Since this is a double-acting cylinder, it does not hold its load if air pressure is lost or the valve is centered, as the piston will drift and the air cushion only decelerates near stroke end. To suspend a load safely, install an external rod lock or a pilot-operated check valve. The 25 mm stroke keeps the rod fully supported with minimal side-load risk.
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 SGC125X25 FAQ
The SGC125X25 delivers 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. It features a G1/2 air port and a 32 mm piston rod.
No, this specific SKU does not include a magnet. You must select the -S variant (SGC125X25-S) to use CMSG, DMSG, or EMSG magnetic switches. The ISO 15552 mounting interface allows it to drop into existing large-bore fixtures, and the tie-rod construction ensures high rigidity.
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1-Year Warranty
Covers non-human-caused product damage.
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Large-bore cylinders built to order — confirm lead time.
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