Airtac SGC Standard Cylinder SGC250X850S
The AirTAC Airtac SGC Standard Cylinder SGC250X850S is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 850mm 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
- Stroke850 mm
- Port sizeG1
- Acting typeDouble acting
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGC Standard Cylinder SGC250X850S
Delivering 24543 N of push force at 0.5 MPa, this double-acting ISO 15552 tie-rod cylinder handles the most demanding heavy-duty cycles. Four steel tie rods clamp the aluminium barrel to the covers, ensuring structural rigidity under extreme thrust, while the two-way piston seal maintains an internal oil reservoir for long mechanical life. Because this is a Ø250 bore, TPU seals are unavailable; instead, the front-cover packing and buffer gasket utilise NBR (with a Viton H option for 0-150 C high-temperature environments).
Equipped with a -S piston magnet, the unit supports CMSG, DMSG, and EMSG electronic or reed switches for position sensing. Plan for roughly 14726 N of real work at 0.5 MPa, which equates to lifting about 1251 kg vertically with a 2:1 safety margin. The G1 air port and M42x2.0 rod thread provide ample flow and mounting strength for moving massive loads across the 850 mm stroke.
Airtac SGC Standard Cylinder SGC250X850S Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC250X850S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 850 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 SGC250X850S
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×850 | 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 SGC250X850S Is Used
Automotive Press Stamping
Provides the high clamping thrust needed to hold heavy steel panels in place during large-scale automotive stamping press operations.
Palletiser Actuation
Drives the main lifting arms of heavy-duty palletising robots, moving fully loaded pallets weighing over a tonne across the 850 mm extension.
Injection Mould Ejection
Supplies the robust knockout force required to eject large industrial plastic components from heavy injection moulding machinery.
Is the Airtac SGC Standard Cylinder SGC250X850S the Right Cylinder?
When sizing this 850 mm stroke model, verify that your payload is guided externally to prevent rod bending under side loads. If the 24543 N push at 0.5 MPa exceeds your requirement, dropping down to the Ø200 bore provides 15708 N. As the largest SGC option, there is no larger bore available in this series. Note that a standard cylinder drifts when air is lost or a valve is centered; the adjustable 60 mm air cushions only decelerate the piston near stroke ends. To suspend a load safely mid-stroke, integrate 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 SGC250X850S FAQ
This Ø250 bore model features a G1 air port and delivers a push force of 24543 N and a pull force of 23562 N at 0.5 MPa. At 0.7 MPa, push is 34360 N and pull is 32986 N. The theoretical maximum force is 5006 kgf at 1.0 MPa.
Yes, it is dimensionally interchangeable per the ISO 15552 mounting interface, allowing it to drop into existing large-bore fixtures. The included -S magnet enables CMSG, DMSG, and EMSG position switches, and the tie-rod build handles high structural stress.
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1-Year Warranty
Covers non-human-caused product damage.
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Large-bore cylinders built to order — confirm lead time.
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