Airtac SGC Standard Cylinder SGC125X120S
The AirTAC Airtac SGC Standard Cylinder SGC125X120S 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 SGC125X120S
Delivering 6136 N of push force at 0.5 MPa, this double-acting tie-rod cylinder brings large-bore power to ISO 15552 fixtures. Four steel tie rods clamp the aluminium barrel to the covers for high structural rigidity, while the two-way piston seal maintains an internal oil reservoir for long service life. 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 built-in piston magnet (-S) directly supports CMSG, DMSG, and EMSG electronic or reed switches for end-of-stroke confirmation. It features a Ø32 mm hard-chrome rod, an M27x2.0 rod thread, and a G1/2 air port. Adjustable 40 mm air cushions at both ends decelerate the piston smoothly across its 30-500 mm/s operating speed range.
Airtac SGC Standard Cylinder SGC125X120S Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC125X120S |
|---|---|
| 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 SGC125X120S
| 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 SGC125X120S Is Used
Press Fit Assembly
Drives bearings into heavy machinery housings, utilizing the 6136 N push force to seat components precisely without hydraulic fluid.
Pallet Stopper Gate
Acts as a heavy-duty stopping barrier on conveyor lines, using the -S magnet to confirm gate position before pallet transfer.
Plastic Mould Clamp
Holds lower injection mould halves securely in place during setup, relying on the rigid four tie-rod construction to resist deflection.
Is the Airtac SGC Standard Cylinder SGC125X120S the Right Cylinder?
When sizing this 125 mm bore, step down to a smaller frame if your load requires less than 6000 N, or step up to the 160 mm bore (which provides 10053 N push at 0.5 MPa) if you need significantly more thrust. Because this is a 120 mm stroke, side-load risks are minimal, but always ensure the load is guided to prevent rod bending.
This SKU includes the -S magnet for position sensing. Note that a standard cylinder drifts when air is lost or the valve is centred; the air cushion only decelerates the piston near the end of travel and does not act as a brake. For suspended or vertical loads, 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 SGC125X120S FAQ
At 0.5 MPa it provides 6136 N push and 5734 N pull. At 0.7 MPa it provides 8590 N push and 8028 N pull. The theoretical maximum force is 1251 kgf at 1.0 MPa. The air port size is G1/2.
Yes, it is dimensionally interchangeable per the ISO 15552 mounting interface, so it drops directly into standard large-bore fixtures. You can use LB foot, FA/FB flange, or TC trunnion accessories. The -S magnet enables CMSG, DMSG, and EMSG sensors.
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Covers non-human-caused product damage.
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