Airtac SGCD Dual Rod Cylinder SGCD250X75S
The AirTAC Airtac SGCD Dual Rod Cylinder SGCD250X75S is a genuine double acting, double rod 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, double rod
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGCD Dual Rod Cylinder SGCD250X75S
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 provide perfectly symmetric output. The double-rod architecture means the pressure area is identical on both faces, giving you 32986 N at 0.7 MPa each way while preventing rotational twist during heavy strokes. It features a G1 air port, a 60 mm adjustable air cushion at each end, and a built-in piston magnet for position sensing.
Because the four steel tie rods clamp the aluminum barrel rigidly to the covers, the unit handles high structural loads without flexing. This 250 mm bore model omits TPU seals entirely, relying on NBR packings with an optional Viton H upgrade for 0 to 150 C environments. The symmetric load path and rear rod extension allow you to mount a sensor cam or drive a second mechanism from the back end. With a safe working load around 14137 N, it can reliably manage a vertical lift of roughly 1201 kg.
Airtac SGCD Dual Rod Cylinder SGCD250X75S Technical Specifications
| Model | Airtac SGCD Dual Rod Cylinder SGCD250X75S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 75 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 SGCD250X75S
| SGCD | ISO 15552 tie-rod cylinder (double-rod 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 SGCD Dual Rod Cylinder SGCD250X75S Is Used
Twin-Spindle Press
Drives two opposing forming tools simultaneously with equal 23562 N force, keeping the press bed perfectly balanced without rotational twist.
Symmetric Transfer Gate
Uses the rear rod extension to mount a sensor cam while the front rod shifts a heavy diverter plate, ensuring consistent tracking on a 1201 kg load.
Heavy-Duty Indexing Lift
Raises and lowers large welding fixtures with identical push and pull thrust, relying on the four tie rods to maintain rigidity under high vibration.
Is the Airtac SGCD Dual Rod Cylinder SGCD250X75S the Right Cylinder?
As the largest bore in the series, this 250 mm model sits at the top edge of the range, stepping up from the 200 mm option which provides 15079 N at 0.5 MPa. Choose this double-rod configuration when your application demands anti-rotation guidance, twin tooling driven from both ends, or a symmetric load path to prevent side-loading bias. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2 brackets. The -S suffix indicates the internal magnet is present, allowing you to fit CMSG, DMSG, or EMSG sensors for stroke detection. Even at a short 75 mm stroke, you should always guide the external load to prevent binding, and note that a plain cylinder cannot hold a load without live air—use an external rod lock or pilot-operated check valve for secure positioning.
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 SGCD250X75S FAQ
Because it is a double-rod cylinder, the force is equal in both directions: 23562 N at 0.5 MPa, 32986 N at 0.7 MPa, and a theoretical maximum of 4805 kgf at 1.0 MPa. It uses a G1 air port and an M42x2.0 rod-end thread.
No, the air cushion only decelerates the piston near the stroke end; it will drift without live air, so you need an external rod lock or pilot-operated check valve to hold a load. Also, this 250 mm bore skips TPU seals and uses NBR packings, with a Viton H option available for 0 to 150 C heat.
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