Airtac SGC Standard Cylinder SGC125X300SH
The AirTAC Airtac SGC Standard Cylinder SGC125X300SH is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 300mm 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
- Stroke300 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 SGC125X300SH
Delivering 6136 N of push force at 0.5 MPa, this double-acting ISO 15552 tie-rod cylinder handles large-bore automation with ease. Four steel tie rods clamp the aluminum barrel to the covers for high rigidity, while the two-way piston seal maintains an internal oil reservoir for long service life. The built-in -S piston magnet enables direct mounting of CMSG, DMSG, or EMSG switches.
Equipped from the factory with the -H Viton seal, the operating range extends from 0 up to 150 C, replacing the standard -20 to 70 C TPU temperature limit. The G1/2 port and 32 mm rod manage airflow and power effectively. 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 SGC125X300SH Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC125X300SH |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 300 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 SGC125X300SH
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×300 | 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 SGC125X300SH Is Used
Press Tool Ejection
Provides the 6136 N push force needed to eject formed metal parts from heavy stamping dies at elevated ambient temperatures using the Viton seal.
Pallet Stopper Gate
Acts as a robust 300 mm stroke stop gate on high-speed packaging conveyors, using the -S magnet to confirm gate position for the safety controller.
Plastic Mold Clamping
Secures injection mold halves with roughly 313 kg of vertical holding equivalent, relying on the rigid tie-rod build to resist press deflection.
Is the Airtac SGC Standard Cylinder SGC125X300SH the Right Cylinder?
This 125 mm bore sits at the entry point of the SGC large-frame family; stepping up to the 160 mm bore raises push force to 10053 N at 0.5 MPa, while no smaller SGC bore exists below it. The 300 mm stroke is well within standard limits but long enough that you should support the load with external guides to prevent rod bending and premature seal wear. Because this SKU includes the -S magnet, it is fully ready for CMSG, DMSG, or EMSG position sensing.
Remember that a standard double-acting cylinder drifts when air is lost or the valve is centered. The adjustable 40 mm air cushions only decelerate the piston near the end of travel, so install an external rod lock or pilot-operated check valve if the application requires strict load holding.
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 SGC125X300SH FAQ
The 125 mm bore generates a push force of 6136 N and a pull force of 5734 N at 0.5 MPa. At 0.7 MPa, push is 8590 N and pull is 8028 N. The theoretical maximum force is 1251 kgf at 1.0 MPa, and the air port size is G1/2.
No, the double-acting piston will drift if air is lost or the valve is centered. The adjustable air cushions only decelerate the piston near stroke end and do not function as a brake. You must use an external rod lock or pilot-operated check valve for load holding.
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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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