Airtac SGCD Dual Rod Cylinder SGCD250X800S
The AirTAC Airtac SGCD Dual Rod Cylinder SGCD250X800S is a genuine double acting, double rod ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 800mm 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
- Stroke800 mm
- Port sizeG1
- Acting typeDouble acting, double rod
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGCD Dual Rod Cylinder SGCD250X800S
Delivering 23562 N of equal thrust in both directions at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder uses a twin-rod piston to balance loads perfectly. The double-rod layout prevents rotation and provides a symmetric load path, while the four steel tie rods clamp the aluminium barrel rigidly to the covers. A built-in magnet (-S) prepares the unit for CMSG, DMSG or EMSG position sensing.
With a massive 800 mm stroke, external rod-end guidance is essential to prevent side-load bending on the 50 mm rod. The G1 air port feeds the chambers, and because TPU is unavailable on a 250 bore, the standard NBR seals handle -20 to +70 C (a Viton H option extends this to 150 C). This size yields a safe working load of roughly 14137 N, capable of vertically lifting about 1201 kg with a 2:1 safety margin.
Airtac SGCD Dual Rod Cylinder SGCD250X800S Technical Specifications
| Model | Airtac SGCD Dual Rod Cylinder SGCD250X800S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 800 mm |
| Acting type | Double acting, double rod |
| 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 | Force (both ways) | — |
|---|---|---|
| 0.5 MPa | 23562 N | 23562 N |
| 0.7 MPa | 32987 N | 32987 N |
| Max (@1.0 MPa) | 5006 kgf | |
Double-rod: the rod passes through both covers, so output force is equal in both directions.
Model Code: Airtac SGCD Dual Rod Cylinder SGCD250X800S
| SGCD | ISO 15552 tie-rod cylinder (double-rod type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×800 | 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 SGCD Dual Rod Cylinder SGCD250X800S Is Used
Twin-Press Stamping
Drives two forming tools simultaneously from opposite rod ends, ensuring perfectly synchronized high-tonnage pressing with equal force.
Heavy Platen Lowering
Lowers heavy industrial platens with a symmetric load path that prevents binding and torsional twist over the long 800 mm travel.
Pallet Transfer Gate
Shifts a heavy divert gate from the rear rod end while the front rod carries a cam to trigger CMSG electronic sensors for position feedback.
Is the Airtac SGCD Dual Rod Cylinder SGCD250X800S the Right Cylinder?
As the largest bore in the series, the 250 sits at the high edge; stepping down to the 200 bore drops the equal-both-ways force to 15079 N at 0.5 MPa. Choose the double-rod configuration when your mechanism requires anti-rotation guidance, twin tooling driven from both ends, or a sensor cam on the back side. Mounting options include FA, LB, TC, FTC, TCM1 and TCM2. The -S suffix denotes the internal magnet for switches. Because the stroke is 800 mm, always provide external guide support to absorb side loads and prevent rod bending.
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 SGCD Dual Rod Cylinder SGCD250X800S FAQ
Force is equal both ways using the rod-side area: 23562 N at 0.5 MPa and 32986 N at 0.7 MPa. The theoretical max is 4805 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa, and it uses a G1 port.
No. A plain double-rod cylinder drifts on air loss or when the valve is centered; the adjustable 60 mm air cushions only decelerate the piston near stroke end. To hold a load securely, install an external rod lock or a pilot-operated check valve.
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