Airtac SGCD Dual Rod Cylinder SGCD250X40S
The AirTAC Airtac SGCD Dual Rod Cylinder SGCD250X40S is a genuine double acting, double rod ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 40mm 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
- Stroke40 mm
- Port sizeG1
- Acting typeDouble acting, double rod
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGCD Dual Rod Cylinder SGCD250X40S
Delivering 23562 N of thrust in both directions at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder uses a twin-rod piston to guarantee equal push and pull force. The symmetric load path prevents rod twisting under heavy offset loads. It yields a safe working load of roughly 14137 N, easily lifting a 1201 kg vertical mass with a 2:1 safety margin. A G1 air port feeds the 250 mm bore.
Four steel tie rods clamp the aluminum barrel for high structural rigidity. Because this is a 250 mm bore, TPU seals are unavailable; standard NBR packings handle the -20 to +70 C range, with a Viton H option for 0-150 C heat. The built-in -S magnet directly supports CMSG, DMSG, and EMSG electronic or reed switches for end-of-stroke sensing.
Airtac SGCD Dual Rod Cylinder SGCD250X40S Technical Specifications
| Model | Airtac SGCD Dual Rod Cylinder SGCD250X40S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 40 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 SGCD250X40S
| SGCD | ISO 15552 tie-rod cylinder (double-rod type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×40 | 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 SGCD250X40S Is Used
Twin-Spindle Press
Drives two opposing forming tools simultaneously with perfectly synchronized 23562 N force, using the through-rod design to keep pressure balanced.
Heavy Stamping Anvil
Provides non-rotating, anti-twist downward pressure for large metal stamping operations where a single rod might bind under offset loads.
Symmetric Divert Gate
Uses the rear rod extension to mount a cam for DMSG sensors while the front rod pushes a heavy diverting flap on the production line.
Is the Airtac SGCD Dual Rod Cylinder SGCD250X40S the Right Cylinder?
As the largest standard bore, this 250 mm unit sits at the high edge of the SGCD range, dwarfing the 200 mm option which provides 15079 N both ways at 0.5 MPa. If 23562 N is excessive, step down to the 160 mm bore yielding 9425 N. Choose the double-rod layout when your mechanism demands anti-rotation guidance, twin tooling driven from both ends, or a rear sensor cam. Mounting hardware includes FA, LB, TC, FTC, TCM1, and TCM2 brackets. The -S magnet enables position detection. Although the 40 mm stroke is short, always support side loads with external guide rails for any cylinder stroke approaching 500 mm or more.
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 SGCD250X40S FAQ
Force is equal both ways because the rod exits both ends. It generates 23562 N at 0.5 MPa and 32986 N at 0.7 MPa. The theoretical maximum is 4805 kgf at 1.0 MPa. The air port size is G1.
No, a plain cylinder drifts without live air, and the 60 mm adjustable cushions only decelerate near stroke end. For a held vertical load, install an external rod lock or a pilot-operated check valve.
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1-Year Warranty
Covers non-human-caused product damage.
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