Airtac SGC Standard Cylinder SGC125X120SH
The AirTAC Airtac SGC Standard Cylinder SGC125X120SH is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 120mm 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
- Stroke120 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
About the Airtac SGC Standard Cylinder SGC125X120SH
Delivering 6136 N of push force at 0.5 MPa, this double-acting ISO 15552 tie-rod cylinder is built for heavy-duty automation. 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 G1/2 port and M27x2.0 rod thread match the 125 mm bore standard. Plan for about 3682 N of real work at 0.5 MPa, or roughly 313 kg lifted vertically with a 2:1 margin.
Because this SKU includes the -S magnet and -H Viton seal, it accepts CMSG, DMSG, or EMSG switches for position sensing and operates reliably in environments up to 150 C. The 120 mm stroke moves at 30-500 mm/s, decelerated smoothly by 40 mm adjustable air cushions at both ends. It drops directly into existing ISO 15552 mounting fixtures without modification.
Airtac SGC Standard Cylinder SGC125X120SH Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC125X120SH |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 120 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 SGC125X120SH
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×120 | 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 SGC125X120SH Is Used
Injection Mold Clamping
Provides the 6136 N push force required to secure heavy injection mold halves, utilizing the Viton H seal to withstand ambient heat near the barrel.
Palletized Load Pusher
Uses the 120 mm stroke to index heavy pallets off a conveyor, safely lifting or pushing components up to the 313 kg vertical margin.
Heavy Press Ejection
Ejects dense formed parts from hydraulic presses, relying on the 40 mm adjustable air cushions to prevent end-of-stroke impact damage.
Is the Airtac SGC Standard Cylinder SGC125X120SH the Right Cylinder?
When sizing this 125 mm bore, verify if the 6136 N push at 0.5 MPa provides enough thrust, or step up to the 160 mm bore for 10053 N. If your application requires less force, note that 125 mm is the smallest SGC option available. The -S magnet is required if you need CMSG, DMSG, or EMSG electronic position sensors. The -H Viton seal is essential for high-temperature environments up to 150 C.
Remember that a standard double-acting cylinder drifts when air is lost or the valve is centered; the air cushion only decelerates the piston near stroke end and does not act as a brake. For suspended or vertical loads that must be held in place during a pressure drop, install an external rod lock or a pilot-operated check valve.
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 SGC125X120SH FAQ
This 125 mm bore cylinder provides 6136 N push and 5734 N pull at 0.5 MPa, or 8590 N push and 8028 N pull at 0.7 MPa. The theoretical maximum force is 1251 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa, speed is 30-500 mm/s, and it features a G1/2 air port.
Yes, the -S designation means it has a built-in piston magnet for CMSG, DMSG, or EMSG switches. The -H designation indicates a Viton (FKM) seal, raising the operating temperature range from the standard -20 to +70 C up to 0-150 C for high-heat environments.
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