Airtac SGCD Dual Rod Cylinder SGCD250X125S
The AirTAC Airtac SGCD Dual Rod Cylinder SGCD250X125S 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 SGCD250X125S
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. The double-rod layout creates a symmetric load path that resists torsional twist, while the rear extension can drive a secondary mechanism or trigger a sensor cam. It handles a safe working load of roughly 14137 N, which is enough to vertically lift about 1201 kg with a two-to-one safety margin.
Four steel tie rods clamp the aluminum barrel to the covers, and the G1 air port feeds the 50 mm rod chamber. 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 switches for position detection.
Airtac SGCD Dual Rod Cylinder SGCD250X125S Technical Specifications
| Model | Airtac SGCD Dual Rod Cylinder SGCD250X125S |
|---|---|
| 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 SGCD250X125S
| 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 SGCD250X125S Is Used
Twin-Press Stamping
Drives two forming tools simultaneously from opposite rod ends, ensuring perfectly balanced high-tonnage stamping without torsional deflection.
Symmetric Lift Platform
Lifts heavy platens with equal force on the raise and lower strokes, preventing sagging and maintaining precise vertical alignment under heavy loads.
Dual-End Divertor
Uses the rear rod extension to push a diverting gate while the front rod retracts a separate lane blocker, synchronizing two material handling actions.
Is the Airtac SGCD Dual Rod Cylinder SGCD250X125S the Right Cylinder?
This 250 mm bore sits at the top of the SGCD range, offering 23562 N both ways at 0.5 MPa; step down to the 200 mm bore if you only need 15079 N, or keep this size for maximum equal push-pull capacity. Choose the double-rod format when your mechanism demands anti-rotation guidance, twin tooling operation, or a symmetric load path. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2 brackets. The -S suffix ensures readiness for CMSG or DMSG sensors. For any stroke at or above 500 mm, always use external guide rails to prevent side-load wear on 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 SGCD250X125S FAQ
Force is equal in both directions due to the double-rod design: 23562 N at 0.5 MPa, 32986 N at 0.7 MPa, and a theoretical maximum of 4805 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa, with a 1.5 MPa proof pressure.
No, the air cushions only decelerate the piston near the end caps; they do not lock the load. You must use an external rod lock or pilot-operated check valve to hold a load. The -S magnet allows direct mounting of CMSG, DMSG, or EMSG switches for position sensing.
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