Airtac SGCD Dual Rod Cylinder SGCD250X125
The AirTAC Airtac SGCD Dual Rod Cylinder SGCD250X125 is a genuine double acting, double rod ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 125mm 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
- Stroke125 mm
- Port sizeG1
- Acting typeDouble acting, double rod
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGCD Dual Rod Cylinder SGCD250X125
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 equalize output force. It provides a safe working load of about 14137 N for real work, translating to a vertical lift capacity of roughly 1201 kg with a 2:1 safety margin. The G1 air port feeds the chamber while four steel tie rods clamp the aluminum barrel securely to the covers.
Because a rod exits both ends, the unit prevents torsional twist and maintains a symmetric load path for heavy guidance tasks. The standard NBR seals handle -20 to +70 C, though a Viton H option extends heat resistance up to 150 C since TPU is not offered on this 250 mm bore. This specific SKU lacks a magnet and cannot accept position switches, but the adjustable 60 mm cushions absorb kinetic energy at stroke ends.
Airtac SGCD Dual Rod Cylinder SGCD250X125 Technical Specifications
| Model | Airtac SGCD Dual Rod Cylinder SGCD250X125 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 125 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 SGCD250X125
| SGCD | ISO 15552 tie-rod cylinder (double-rod type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×125 | 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 SGCD250X125 Is Used
Twin-Spindle Press
Drives two forming tools simultaneously from opposite rod ends, ensuring perfectly balanced pressing force without torsional deflection.
Symmetric Lift Platform
Lifts heavy platens with equal push and pull thrust, maintaining parallel alignment through the entire vertical travel range.
Dual-End Transfer
Shifts heavy pallets using a rod out each end to carry a sensor cam or secondary stopper, keeping the load path perfectly centered.
Is the Airtac SGCD Dual Rod Cylinder SGCD250X125 the Right Cylinder?
As the largest bore in the range, this 250 mm model sits at the high edge with no larger standard option available, delivering 23562 N each way at 0.5 MPa. If your application requires less force, stepping down to the 200 mm bore yields 15079 N, while the 160 mm bore provides 9425 N. Choose this double-rod configuration when you need strict anti-rotation control, twin tooling driven from both ends, or a symmetric load path. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2 brackets. Because this SKU has no -S magnet, it cannot accept CMSG or DMSG sensors. For any stroke exceeding 500 mm, always use external guide rails to prevent side-load binding.
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 SGCD250X125 FAQ
The double-rod design yields equal force in both directions: 23562 N at 0.5 MPa and 32986 N at 0.7 MPa. The theoretical maximum is 4805 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa, with a 1.5 MPa proof pressure.
No, a plain cylinder drifts when air is removed or the valve is centered, as the 60 mm adjustable cushions only decelerate the piston near stroke end. To hold a suspended load, you must install an external rod lock or a pilot-operated check valve.
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