Airtac SGCD Dual Rod Cylinder SGCD125X25
The AirTAC Airtac SGCD Dual Rod Cylinder SGCD125X25 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 SGCD125X25
Delivering 5734 N of thrust in both directions at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder uses a twin-rod design to equalize output force. A rod exits each end, which prevents piston rotation and provides a symmetric load path for twin tooling or rear cam actuation. The G1/2 port matches the 125 mm bore standard.
Four steel tie rods clamp the aluminum barrel securely to the covers, ensuring structural rigidity under high pressure. Because the piston sees the exact same rod-side area on both faces, push and pull forces remain identical at 8028 N when operating at 0.7 MPa. This yields a safe working load of roughly 3440 N for real work, translating to a vertical lift capacity of about 292 kg with a 2:1 safety margin.
Airtac SGCD Dual Rod Cylinder SGCD125X25 Technical Specifications
| Model | Airtac SGCD Dual Rod Cylinder SGCD125X25 |
|---|---|
| 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 SGCD125X25
| 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 SGCD125X25 Is Used
Twin-Spindle Clamping
Drives two opposing clamps simultaneously using the front and rear rods, ensuring balanced holding force across a wide workpiece.
Anti-Rotation Indexing
The dual-rod architecture prevents piston twist during rapid 25 mm shifts, maintaining precise alignment for downstream tooling.
Symmetric Transfer Gate
Shifts a divert gate from the back end while the front rod manages a secondary pusher, keeping the load path perfectly centered.
Is the Airtac SGCD Dual Rod Cylinder SGCD125X25 the Right Cylinder?
When sizing this double-acting unit, step down to the smaller bore if your application requires less than 5734 N, or step up to the 160 mm bore if you need 9425 N at 0.5 MPa. The 125 mm bore sits at the low edge of the SGCD family. Choose the double-rod configuration when you need strict anti-rotation guidance, a symmetric load path, or dual tooling driven from one piston. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2 brackets. This specific SKU lacks the -S magnet, so it cannot accept CMSG/DMSG/EMSG sensors. For any stroke over 500 mm, add 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 SGCD125X25 FAQ
Because the rod passes through both covers, force is equal in both directions. It generates 5734 N at 0.5 MPa and 8028 N at 0.7 MPa, with a theoretical maximum of 1169 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa.
No, a plain cylinder drifts without live air, as the adjustable 40 mm cushions only decelerate the piston near stroke end. To hold a suspended load securely, you must install an external rod lock or a pilot-operated check valve.
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Covers non-human-caused product damage.
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