Airtac SGCD Dual Rod Cylinder SGCD125X25S
The AirTAC Airtac SGCD Dual Rod Cylinder SGCD125X25S is a genuine double acting, double rod ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 25mm 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
- Stroke25 mm
- Port sizeG1/2
- Acting typeDouble acting, double rod
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
About the Airtac SGCD Dual Rod Cylinder SGCD125X25S
Generating 5734 N of equal thrust in both directions at 0.5 MPa, this large-bore double-rod cylinder uses a G1/2 air port and a 32 mm piston rod. The twin-rod layout creates a symmetric load path that resists torsional twist, while a shaft extending out the rear cap can drive a secondary tool or trigger a sensor cam. Four steel tie rods clamp the aluminum barrel to the covers for structural rigidity, and the unit drops into existing fixtures dimensionally interchangeable per the ISO 15552 mounting interface.
With the built-in -S piston magnet, you can mount CMSG, DMSG, or EMSG electronic switches directly onto the body. This 125 mm bore generates 8028 N at 0.7 MPa and a theoretical maximum of 1169 kgf at 1.0 MPa. Factoring in friction and dynamics, expect a safe working load of about 3440 N, which is enough to vertically lift roughly 292 kg with a 2:1 safety margin. The standard TPU seals handle -20 to +70 C, though a Viton H option extends operation to 150 C.
Airtac SGCD Dual Rod Cylinder SGCD125X25S Technical Specifications
| Model | Airtac SGCD Dual Rod Cylinder SGCD125X25S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 25 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 SGCD125X25S
| SGCD | ISO 15552 tie-rod cylinder (double-rod type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×25 | 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 SGCD125X25S Is Used
Twin-Tool Pressing
Drives two identical stamping or forming tools simultaneously from opposite rod ends, ensuring perfectly balanced pressure distribution.
Anti-Rotation Indexing
Uses the dual shafts to guide a heavy pallet stop without twisting, maintaining precise alignment during high-speed transfers.
Rear-Cam Sensing
Uses the extended back-end rod to physically trip an external limit switch while the front rod performs the primary clamping task.
Is the Airtac SGCD Dual Rod Cylinder SGCD125X25S the Right Cylinder?
Choose this 125 mm bore when your application requires anti-rotation guidance, twin tooling, or a symmetric load path. It sits at the low edge of the SGCD range; stepping up to the 160 mm bore raises the equal-both-ways force to 9425 N at 0.5 MPa. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2. The -S suffix confirms the internal magnet is present for position sensing. Because the 25 mm stroke is very short, side loading is minimal, but for any stroke reaching 500 mm or more you should add external guide rails to prevent 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 SGCD125X25S FAQ
Because it is a double-rod cylinder, the force is equal in both directions. It provides 5734 N at 0.5 MPa, 8028 N at 0.7 MPa, and a theoretical maximum of 1169 kgf at 1.0 MPa.
No, the adjustable air cushions only decelerate the piston near the end caps. To hold a load securely, you must install an external rod lock or a pilot-operated check valve.
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