Airtac SGCD Dual Rod Cylinder SGCD125X450S
The AirTAC Airtac SGCD Dual Rod Cylinder SGCD125X450S is a genuine double acting, double rod ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 450mm 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
- Stroke450 mm
- Port sizeG1/2
- Acting typeDouble acting, double rod
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
About the Airtac SGCD Dual Rod Cylinder SGCD125X450S
Delivering 5734 N of thrust each way at 0.5 MPa, the AirTAC SGCD125X450S is a genuine ISO 15552 tie-rod cylinder built for balanced actuation. Because a rod exits both ends, the effective piston area is identical in both directions, completely eliminating push-pull force mismatch. This symmetric load path prevents piston twisting, making it ideal for precision guiding. At 0.5 MPa it handles a safe working load of roughly 3440 N, which translates to lifting about 292 kg vertically with a 2:1 safety margin. The G1/2 port feeds the 125 mm bore, operating smoothly across 30-500 mm/s.
Four steel tie rods clamp the aluminum barrel to the covers, providing structural rigidity under high cycle counts. The included -S piston magnet enables position detection using CMSG, DMSG, or EMSG switches. Standard TPU seals offer long life from -20 to +70 C, while a Viton H option extends this to 0-150 C. Remember that the 40 mm adjustable air cushions only decelerate the piston near stroke end; they do not hold a load. For static holding on air loss, you must fit an external rod lock or pilot-operated check valve.
Airtac SGCD Dual Rod Cylinder SGCD125X450S Technical Specifications
| Model | Airtac SGCD Dual Rod Cylinder SGCD125X450S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 450 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 SGCD125X450S
| SGCD | ISO 15552 tie-rod cylinder (double-rod type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×450 | 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 SGCD125X450S Is Used
Dual-Station Transfer
Uses both rod ends to push and retract workpieces on parallel conveyor lines simultaneously, ensuring perfectly synchronized material handling without adding a second cylinder.
Balanced Lift Platform
Raises and lowers a 292 kg vertical load with equal force both ways, relying on the symmetric load path to prevent platform twisting during heavy elevation changes.
Anti-Rotation Tool Slide
Actuates a precision machining slide where the twin rods prevent rotational drift, keeping the tool orientation perfectly fixed while cycling through the 450 mm stroke.
Is the Airtac SGCD Dual Rod Cylinder SGCD125X450S the Right Cylinder?
This 125 mm bore sits at the lower edge of the large-bore SGCD range. If your application needs less force, the range does not offer a smaller double-rod bore, so you would look outside this family. If you need more power, stepping up to the 160 mm bore yields 9425 N both ways at 0.5 MPa. The double-rod design is the right call when you need anti-rotation stability, want to drive two tools simultaneously from one piston, or require a sensor cam on the back end. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2, all conforming to ISO 15552 mounting interface dimensions. With a 450 mm stroke, you must account for side loads; always use external guide rails to prevent rod binding and premature seal wear over longer extensions.
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 SGCD125X450S FAQ
Because it is a double-rod cylinder, force is equal in both directions. It provides 5734 N each way at 0.5 MPa and 8028 N each way at 0.7 MPa. The theoretical maximum is 1169 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa, and it uses a G1/2 air port.
No, the air cushions only decelerate the piston near the end of the stroke and do not act as a brake. If air is lost or the valve is centered, the load will drift. You must use an external rod lock or a pilot-operated check valve to hold a suspended load safely.
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