Airtac SGCD Dual Rod Cylinder SGCD125X250
The AirTAC Airtac SGCD Dual Rod Cylinder SGCD125X250 is a genuine double acting, double rod ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 250mm stroke, G1/2 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.
- BoreØ125 mm
- Stroke250 mm
- Port sizeG1/2
- Acting typeDouble acting, double rod
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
About the Airtac SGCD Dual Rod Cylinder SGCD125X250
Delivering 5734 N of thrust in both directions at 0.5 MPa, this AirTAC large-bore tie-rod cylinder uses a twin-rod piston to equalize output force. The G1/2 port feeds the 125 mm bore, yielding a safe working load of roughly 3440 N for real work, which translates to lifting about 292 kg vertically with a 2:1 safety margin.
Four steel tie rods clamp the aluminum barrel to the covers, providing structural rigidity for demanding cycles. The unit is dimensionally interchangeable per the ISO 15552 mounting interface, dropping easily into existing large-bore fixtures. Note that this specific SKU lacks a magnet, so it cannot host CMSG or DMSG sensors; add the -S variant for position detection.
Airtac SGCD Dual Rod Cylinder SGCD125X250 Technical Specifications
| Model | Airtac SGCD Dual Rod Cylinder SGCD125X250 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 250 mm |
| Acting type | Double acting, double rod |
| Port size | G1/2 |
| Rod thread | M27×2.0 |
| 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, 40 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 (Ø125mm)
| Pressure | Force (both ways) | — |
|---|---|---|
| 0.5 MPa | 5734 N | 5734 N |
| 0.7 MPa | 8027 N | 8027 N |
| Max (@1.0 MPa) | 1251 kgf | |
Double-rod: the rod passes through both covers, so output force is equal in both directions.
Model Code: Airtac SGCD Dual Rod Cylinder SGCD125X250
| SGCD | ISO 15552 tie-rod cylinder (double-rod type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×250 | 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 SGCD125X250 Is Used
Twin-Tool Transfer
Drives two opposing grippers simultaneously to transfer parts between conveyor belts without requiring a second actuator.
Symmetric Lift Station
Lifts a 292 kg platen vertically using the equal push and pull forces, ensuring smooth deceleration via the 40 mm adjustable cushions.
Anti-Rotation Indexer
Uses the dual rods exiting both covers to prevent twist during heavy indexing motions on automated assembly lines.
Is the Airtac SGCD Dual Rod Cylinder SGCD125X250 the Right Cylinder?
When sizing this double-acting unit, the equal-both-ways force is 5734 N at 0.5 MPa. Stepping up to the 160 mm bore raises that to 9425 N, while dropping below 125 mm is not available in the SGCD tie-rod series. Choose a double-rod configuration when your application demands anti-rotation guidance, symmetric load paths, or the ability to drive two tools simultaneously from one piston. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2 brackets. Because the stroke is 250 mm, external load guidance is recommended to prevent side-loading damage to the rod seals.
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 SGCD125X250 FAQ
Because it is a double-rod cylinder, force is equal in both directions using the rod-side area. It outputs 5734 N at 0.5 MPa and 8028 N at 0.7 MPa, with a theoretical maximum of 1169 kgf at 1.0 MPa. The air port size is G1/2.
No, a plain cylinder drifts on air loss and the air cushion only decelerates near stroke end; use an external rod lock or pilot-operated check valve for load holding. Additionally, this SKU lacks a magnet and cannot take sensors—select the -S variant for CMSG/DMSG/EMSG switches.
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1-Year Warranty
Covers non-human-caused product damage.
Made to Order
Large-bore cylinders built to order — confirm lead time.
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