Airtac SGCD Dual Rod Cylinder SGCD125X50S
The AirTAC Airtac SGCD Dual Rod Cylinder SGCD125X50S is a genuine double acting, double rod ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 50mm 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
- Stroke50 mm
- Port sizeG1/2
- Acting typeDouble acting, double rod
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
About the Airtac SGCD Dual Rod Cylinder SGCD125X50S
Delivering 5734 N of thrust in both directions at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder outputs equal push and pull force via a twin-rod piston. The rod exits both covers, creating a symmetric load path that resists torsional twist and allows you to drive two tools simultaneously. 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, while four steel tie rods clamp the aluminum barrel securely.
This -S variant includes a built-in piston magnet for CMSG, DMSG, or EMSG position switches. Adjustable 40 mm air cushions at both ends manage end-of-stroke deceleration, and standard TPU seals operate from -20 to +70 C. You can specify Viton H seals for 0-150 C heat. Note that the cushion only slows the piston; it does not lock the load on air loss, so fit an external rod lock or pilot-operated check valve for vertical holding.
Airtac SGCD Dual Rod Cylinder SGCD125X50S Technical Specifications
| Model | Airtac SGCD Dual Rod Cylinder SGCD125X50S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 50 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 SGCD125X50S
| SGCD | ISO 15552 tie-rod cylinder (double-rod type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×50 | 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 SGCD125X50S Is Used
Twin-Tool Machining
Drives two opposing machining heads simultaneously with equal 5734 N force at 0.5 MPa, keeping the cutting cycle balanced.
Anti-Rotation Lift
Uses the dual-rod symmetric load path to raise 292 kg vertical loads smoothly without torsional twist or rod binding.
Dual-End Sensing
Uses the rear rod extension as a cam for CMSG/DMSG/EMSG switches while the front end performs the primary work.
Is the Airtac SGCD Dual Rod Cylinder SGCD125X50S the Right Cylinder?
Choose this 125 mm bore when you need symmetric force, anti-rotation guidance, or rear-end cam sensing. Stepping down from the 160 mm bore drops the equal force to 9425 N at 0.5 MPa, while stepping up to the 200 mm bore raises it to 15079 N. The 125 mm sits at the low edge of the SGCD range. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. The -S suffix provides the magnet for CMSG/DMSG/EMSG sensors. For any stroke over 500 mm, 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 SGCD125X50S FAQ
Because it is a double-rod cylinder, force is equal both ways using the rod-side area. It generates 5734 N at 0.5 MPa and 8028 N at 0.7 MPa in both directions. The theoretical maximum is 1169 kgf at 1.0 MPa. The bore uses a G1/2 port.
The -S indicates a built-in piston magnet. This allows you to mount CMSG, DMSG, or EMSG reed or electronic sensors directly onto the cylinder body for precise position detection.
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