Airtac SGC Standard Cylinder SGC250X75S
The AirTAC Airtac SGC Standard Cylinder SGC250X75S is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 75mm 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
- Stroke75 mm
- Port sizeG1
- Acting typeDouble acting
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGC Standard Cylinder SGC250X75S
Delivering massive thrust, this double-acting ISO 15552 tie-rod cylinder pushes with 24543 N at 0.5 MPa. Four steel tie rods clamp the aluminum barrel to the covers for extreme rigidity under heavy loads. Because of this bore size, TPU seals are unavailable; instead, the front-cover packing and buffer gasket use NBR. The built-in -S magnet enables CMSG, DMSG, and EMSG position switches.
Plan for roughly 14726 N of actual work at 0.5 MPa, which translates to lifting about 1251 kg vertically with a 2:1 safety margin. The G1 air port feeds the 50 mm piston rod, while the two-way piston seal maintains an internal oil reservoir for extended lifespan. Adjustable 60 mm air cushions at both ends absorb end-of-stroke impact.
Airtac SGC Standard Cylinder SGC250X75S Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC250X75S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 75 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 SGC250X75S
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×75 | 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 SGC250X75S Is Used
Heavy Press Stamping
Drives large metal forming presses requiring up to 24543 N of push force at 0.5 MPa to bend thick steel plates.
Pallet Stopper Gate
Acts as a high-force blocking gate in automated distribution centers, halting fully loaded pallets weighing over a ton.
Injection Mold Clamping
Secures heavy industrial mold halves using the rigid four tie-rod construction and 50 mm piston rod for stable alignment.
Is the Airtac SGC Standard Cylinder SGC250X75S the Right Cylinder?
When sizing this 75 mm stroke unit, compare it against the 200 mm bore (15708 N push @0.5 MPa) if your load is lighter, or step up to the 250 mm bore if you need the maximum 24543 N output. Since this SKU includes the -S magnet, you can directly mount CMSG, DMSG, or EMSG sensors for end-position detection.
Remember that a standard cylinder drifts if air pressure drops or the valve is centered; the air cushions only decelerate the piston near stroke end and do not act as a brake. For suspended or vertical loads that must hold position safely, 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 SGC250X75S FAQ
This 250 mm bore cylinder features a G1 air port and an M42x2.0 rod thread. It delivers 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.
Yes, it is dimensionally interchangeable per the ISO 15552 mounting interface, so it drops directly into existing large-bore fixtures. You can use LB foot, FA flange, CA clevis, or TC trunnion mounts, and the -S magnet supports CMSG, DMSG, and EMSG sensors.
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