Airtac SGC Standard Cylinder SGC125X140
The AirTAC Airtac SGC Standard Cylinder SGC125X140 is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 140mm 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
- Stroke140 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
About the Airtac SGC Standard Cylinder SGC125X140
Delivering 6136 N of push force at 0.5 MPa, this double-acting tie-rod cylinder handles heavy automation tasks with ease. Its four steel tie rods clamp the aluminum barrel to the covers for high structural rigidity, while the two-way piston seal maintains an internal oil reservoir for long service life. Because it is built to the ISO 15552 mounting interface, it drops directly into existing large-bore fixtures without custom brackets.
For practical sizing, plan for about 3682 N of real work at 0.5 MPa, which equates to lifting roughly 313 kg vertically with a 2:1 safety margin. This 125 mm bore uses a G1/2 port and a 32 mm rod with an M27x2.0 thread. Note that this specific SKU lacks the -S magnet, so it cannot host CMSG, DMSG, or EMSG position switches.
Airtac SGC Standard Cylinder SGC125X140 Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC125X140 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 140 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 SGC125X140
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×140 | 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 SGC125X140 Is Used
Press Fit Assembly
Drives bearings into heavy machinery housings, utilizing the 6136 N push force to seat components firmly without hydraulic fluid.
Pallet Stopper Gate
Acts as a robust pneumatic stop in high-throughput conveyor lines, holding back loaded pallets weighing up to 313 kg safely.
Platen Lifting
Raises and lowers industrial press platens, relying on the four steel tie rods to maintain stability under reversing loads.
Is the Airtac SGC Standard Cylinder SGC125X140 the Right Cylinder?
When sizing this actuator, compare your requirements against the neighboring SGC bores. If 6136 N at 0.5 MPa is excessive, step down is not an option within the SGC family as 125 mm is the smallest available size. If you need more power, the 160 mm bore provides 10053 N of push force at 0.5 MPa. At 140 mm stroke, side-load risks are minimal, but always ensure rigid guidance for the payload.
Remember that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered; the adjustable 40 mm air cushions only decelerate the piston near the end of stroke and do not function as a braking lock. To suspend a load safely mid-stroke, install an external pilot-operated check valve or a dedicated rod lock.
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 SGC125X140 FAQ
The 125 mm bore generates 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. It uses a G1/2 air port and a 32 mm piston rod.
No, this specific SKU does not include the -S magnet option, so it cannot support CMSG, DMSG, or EMSG magnetic switches. You would need the SGC125X140-S variant for position sensing.
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