Airtac SGC Standard Cylinder SGC125X120
The AirTAC Airtac SGC Standard Cylinder SGC125X120 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 SGC125X120
Delivering 6136 N of push force at 0.5 MPa, this large-bore actuator handles substantial industrial loads with confidence. The AirTAC SGC125X120 is a double-acting ISO 15552 tie-rod cylinder, meaning it drops seamlessly into existing standardized large-bore fixtures and shares mounting-interface dimensions across compatible lines. Four steel tie rods clamp the aluminum barrel to the covers, providing the high rigidity needed when cycling heavy masses. Internally, a heterogeneous two-way piston seal maintains an oil reservoir for continuous lubrication and extended service life.
With a 125 mm bore and 120 mm stroke, the unit pushes via a G1/2 port and a 32 mm hard-chrome plated carbon steel rod. 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 specific SKU lacks the -S magnet suffix, it cannot accept CMSG, DMSG, or EMSG magnetic switches. The default TPU seals handle temperatures from -20 to +70 C, while adjustable 40 mm air cushions at both ends protect the end caps from impact.
Airtac SGC Standard Cylinder SGC125X120 Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC125X120 |
|---|---|
| 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 SGC125X120
| 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 SGC125X120 Is Used
Automated Press Stamping
Provides the 6136 N push at 0.5 MPa required to seat bearings or form light-gauge sheet metal in automated press lines.
Heavy Pallet Diverting
Uses its 313 kg safe vertical lift equivalent to redirect heavy loaded pallets across conveyor transfer sections without stalling.
Lift Gate Actuation
Raises and lowers industrial loading dock gates, relying on the rigid four-tie-rod construction to withstand off-center loads.
Is the Airtac SGC Standard Cylinder SGC125X120 the Right Cylinder?
When sizing this model, compare your actual load against its 6136 N push and 5734 N pull ratings at 0.5 MPa. As the smallest bore in the SGC family, there is no smaller standard option below 125 mm; if your application requires less force, you might explore other AirTAC series, but stepping up to the 160 mm bore yields 10053 N of push force if you need a safety buffer. Keep in mind 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, so install an external rod lock or pilot-operated check valve for suspended loads. Since this 120 mm stroke is under 500 mm, rod bending is less of a concern, but always ensure the mounting method (LB foot, FA flange, or CA clevis) matches your load profile.
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 SGC125X120 FAQ
This 125 mm bore cylinder features a G1/2 air port and a 32 mm piston rod. It generates 6136 N push and 5734 N pull at 0.5 MPa, 8590 N push and 8028 N pull at 0.7 MPa, with a theoretical maximum of 1251 kgf at 1.0 MPa.
No, because this specific SKU lacks the -S suffix, it does not have a piston magnet and cannot accept CMSG, DMSG, or EMSG switches. You must select the SGC125X120-S variant to enable magnetic sensing.
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