Airtac SGCD Dual Rod Cylinder SGCD125X800S
The AirTAC Airtac SGCD Dual Rod Cylinder SGCD125X800S is a genuine double acting, double rod ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 800mm 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
- Stroke800 mm
- Port sizeG1/2
- Acting typeDouble acting, double rod
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
About the Airtac SGCD Dual Rod Cylinder SGCD125X800S
Delivering 5734 N of thrust in both directions at 0.5 MPa, this double-acting double-rod cylinder uses a rod-side area on both piston faces to guarantee identical push and pull output. The twin-rod layout provides a symmetric load path that resists torsional twist, while the rear extension can drive a secondary mechanism or carry a sensor cam. Four steel tie rods clamp the aluminum barrel to the covers for high structural rigidity. Equipped with a G1/2 port, it offers safe working loads around 3440 N, which is enough to vertically lift roughly 292 kg with a 2:1 safety margin.
This large-bore unit is dimensionally interchangeable per the ISO 15552 mounting interface, dropping easily into existing ISO 15552 fixtures. The -S suffix denotes a built-in piston magnet compatible with CMSG, DMSG, and EMSG reed or electronic switches. Standard TPU seals handle temperatures from -20 to +70 C, while a Viton H option extends this range up to 150 C. Adjustable 40 mm air cushions at both ends manage end-of-stroke deceleration, though an external rod lock or pilot-operated check valve is required to hold a load securely without live air.
Airtac SGCD Dual Rod Cylinder SGCD125X800S Technical Specifications
| Model | Airtac SGCD Dual Rod Cylinder SGCD125X800S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 800 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 SGCD125X800S
| SGCD | ISO 15552 tie-rod cylinder (double-rod type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×800 | 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 SGCD125X800S Is Used
Twin-Tool Transfer
Drives two synchronized workpieces from a single piston, using both rod extensions to actuate parallel clamps in an automated assembly line.
Symmetric Lift Station
Lifts and lowers a 292 kg platen vertically, relying on the equal both-ways force to maintain a balanced load path without drift.
Anti-Twist Stopper
Acts as a high-force stopper gate where torsional stability is critical, using the twin rods to prevent rotation under off-center impacts.
Is the Airtac SGCD Dual Rod Cylinder SGCD125X800S the Right Cylinder?
When sizing this 125 mm bore, stepping down is not an option as it is the smallest available, but stepping up to the 160 mm bore yields 9425 N of equal force at 0.5 MPa if your application demands more power. A double-rod design is the right call when you need anti-rotation guidance, twin tooling operation, or a symmetric load path. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2. The -S magnet enables precise position sensing. Because this model has an 800 mm stroke, external guide rails and rod-end support are strictly advised to prevent rod bending and excessive side loading.
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 SGCD125X800S FAQ
The force is equal in both directions due to the double-rod design. It provides 5734 N at 0.5 MPa and 8028 N at 0.7 MPa, with a theoretical maximum of 1169 kgf at 1.0 MPa. The air port is G1/2 and the rod-end thread is M27x2.0.
No, a plain cylinder drifts without live air, and the 40 mm adjustable air cushions only decelerate the piston near stroke end. To hold a load securely, you must install an external rod lock or a pilot-operated check valve.
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