Airtac SGC Standard Cylinder SGC250X355
The AirTAC Airtac SGC Standard Cylinder SGC250X355 is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 355mm stroke, G1 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.
- BoreØ250 mm
- Stroke355 mm
- Port sizeG1
- Acting typeDouble acting
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGC Standard Cylinder SGC250X355
Delivering massive thrust for heavy industry, this double-acting ISO 15552 tie-rod cylinder pushes with 24543 N at 0.5 MPa. Its four steel tie rods clamp the aluminium barrel to the covers for extreme rigidity under high loads. Plan for about 14726 N of real work at 0.5 MPa, or roughly 1251 kg lifted vertically with a 2:1 safety margin.
This 250 mm bore variant features a 50 mm rod, a G1 air port, and a 60 mm adjustable air cushion at both ends. Note that TPU seals are not offered here; the front-cover packing and buffer gasket are NBR. Because this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG or EMSG position switches.
Airtac SGC Standard Cylinder SGC250X355 Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC250X355 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 355 mm |
| Acting type | Double acting |
| Port size | G1 |
| Rod thread | M42×2.0 |
| 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, 60 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 (Ø250mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 24544 N | 23562 N |
| 0.7 MPa | 34361 N | — |
| Max (@1.0 MPa) | 5006 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 SGC250X355
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×355 | 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 SGC250X355 Is Used
Heavy Press Stamping
Drives large metal forming presses where the 24543 N push force at 0.5 MPa is required to deform thick steel plates.
Injection Mould Clamping
Secures heavy industrial mould halves, utilising the rigid four-tie-rod construction to withstand high clamping forces without flexing.
Palletiser Elevation
Lifts substantial palletised loads vertically, safely handling around 1251 kg with a 2:1 safety margin during material transfer.
Is the Airtac SGC Standard Cylinder SGC250X355 the Right Cylinder?
When sizing this 355 mm stroke model, consider the neighbouring bores: the 200 mm class pushes 15708 N at 0.5 MPa, while the 250 mm bore hits 24543 N. If you need position feedback, select an -S magnet variant for sensor mounting. For this mid-length stroke, ensure external guide rails carry the load to prevent rod bending.
Remember that a standard cylinder drifts when air is lost or a valve centres; the air cushions only decelerate the piston near stroke end and do not act as a brake. Install an external rod lock or pilot-operated check valve if your application requires strict load holding.
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 SGC250X355 FAQ
This 250 mm bore cylinder features a G1 air port and a 50 mm piston rod. It generates 24543 N push and 23562 N pull at 0.5 MPa, 34360 N push and 32986 N pull at 0.7 MPa, with a theoretical maximum of 5006 kgf at 1.0 MPa.
This specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG or EMSG switches. Dimensionally interchangeable per the ISO 15552 mounting interface, it drops directly into existing large-bore fixtures and accessories without custom brackets.
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