Airtac SGC Standard Cylinder SGC125X155
The AirTAC Airtac SGC Standard Cylinder SGC125X155 is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 155mm 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
- Stroke155 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
About the Airtac SGC Standard Cylinder SGC125X155
Delivering 6136 N of push force at 0.5 MPa, this double-acting tie-rod cylinder handles heavy-duty positioning with a 155 mm stroke. Its four steel tie rods clamp the aluminium barrel to the covers for high rigidity, while the two-way piston seal maintains an internal oil reservoir for long service life. Because it is dimensionally interchangeable per the ISO 15552 mounting interface, it drops directly into existing large-bore fixtures without redesign.
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 bore dictates a G1/2 port and an M27x2.0 rod thread, operating at speeds of 30-500 mm/s. Note that this specific SKU lacks the -S magnet, so it cannot host CMSG, DMSG or EMSG sensors for position detection.
Airtac SGC Standard Cylinder SGC125X155 Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC125X155 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 155 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 SGC125X155
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×155 | 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 SGC125X155 Is Used
Press Die Ejection
Provides the 6136 N push force needed to eject heavy formed parts from a hydraulic press bed over a 155 mm travel distance.
Pallet Stopper Gate
Acts as a robust pneumatic stop gate on a heavy-duty roller conveyor, securely halting loaded pallets before the wrapping station.
Injection Mold Clamping
Supplies reliable clamping pressure for auxiliary mold holders, using its 155 mm stroke to lock mid-sized tooling inserts in place.
Is the Airtac SGC Standard Cylinder SGC125X155 the Right Cylinder?
When sizing this 125 mm bore, stepping down is not an option within the SGC family as it is the smallest available size. If you need more power, the 160 mm bore provides 10053 N of push at 0.5 MPa. For this 155 mm stroke, side-load risks are minimal, but always ensure rigid mounting using LB foot, FA/FB flange, or TC trunnion options to prevent rod bending. Because this SKU has no -S magnet, you must choose an external mechanical limit switch if your application requires end-of-stroke detection.
Remember that a standard cylinder cannot hold a load if air pressure drops or the valve is centred; the piston will drift. The adjustable 40 mm air cushions at both ends only decelerate the piston near the stroke ends and do not function as a locking brake. To suspend a load safely, install an external rod lock or a pilot-operated check valve in the system.
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 SGC125X155 FAQ
The SGC125X155 generates a push force of 6136 N and a pull force of 5734 N at 0.5 MPa. At 0.7 MPa, it delivers 8590 N push and 8028 N pull. The theoretical maximum force is 1251 kgf at 1.0 MPa. This 125 mm bore cylinder uses a G1/2 air port and features a 32 mm piston rod with an M27x2.0 thread.
No, this specific SKU does not include the -S magnet option, meaning it cannot accommodate CMSG, DMSG, or EMSG magnetic switches. To add position sensing, you would need the -S variant or rely on external mechanical switches. The cylinder features a tie-rod build and is dimensionally interchangeable per the ISO 15552 mounting interface for easy fixture integration.
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