Airtac SGCD Dual Rod Cylinder SGCD125X250S
The AirTAC Airtac SGCD Dual Rod Cylinder SGCD125X250S is a genuine double acting, double rod ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 250mm 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
- Stroke250 mm
- Port sizeG1/2
- Acting typeDouble acting, double rod
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
About the Airtac SGCD Dual Rod Cylinder SGCD125X250S
Delivering 5734 N of thrust in both directions at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder uses a twin-rod architecture to completely balance the load path. A rod exits both ends, meaning the working area is identical on the extend and retract faces. This makes it good for about 3440 N of real work, roughly 292 kg lifted vertically with a 2:1 safety margin. The four steel tie rods clamp the aluminum barrel securely to the covers, and the G1/2 port matches the 125 mm bore standard.
Because the -S suffix denotes a built-in piston magnet, this SKU is ready for CMSG, DMSG, or EMSG position switches. The symmetric twin-rod layout prevents piston rotation and allows you to drive a tool from the back end simultaneously. Standard adjustable air cushions decelerate the 250 mm stroke, but note that a plain cylinder drifts on air loss; fit an external rod lock or pilot-operated check valve if you need to hold a suspended load.
Airtac SGCD Dual Rod Cylinder SGCD125X250S Technical Specifications
| Model | Airtac SGCD Dual Rod Cylinder SGCD125X250S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 250 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 SGCD125X250S
| SGCD | ISO 15552 tie-rod cylinder (double-rod type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×250 | 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 SGCD125X250S Is Used
Twin-Tool Indexing
Drives a primary workpiece from the front face while actuating a secondary sensor cam from the rear rod simultaneously.
Anti-Rotation Press
Uses the dual-rod symmetric layout to press components without piston twist, ensuring perfectly perpendicular force application.
Symmetric Divertor
Pushes product from both ends of the stroke path to align materials on a high-speed packaging line with equal force.
Is the Airtac SGCD Dual Rod Cylinder SGCD125X250S the Right Cylinder?
If you need less thrust, step down to the SGCD160 bore which provides 9425 N at 0.5 MPa; if your application requires more power, the SGCD200 offers 15079 N. Choose this 125 mm double-rod model when your mechanism demands anti-rotation guidance, symmetric load distribution, or twin tooling driven from both ends. It supports FA, LB, TC, FTC, TCM1, and TCM2 mounts via the ISO 15552 mounting interface. The included -S magnet enables electronic or reed sensing. For this 250 mm stroke, ensure external guide rails carry any lateral side-load to prevent seal wear.
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 SGCD125X250S FAQ
The double-rod design yields equal force in both directions: 5734 N at 0.5 MPa and 8028 N at 0.7 MPa. The theoretical maximum is 1169 kgf at 1.0 MPa. It never quotes a larger single-rod push value because the piston area is identical on both faces.
The S indicates a built-in piston magnet for position detection. You can mount CMSG, DMSG, or EMSG reed or electronic switches directly to the cylinder body. A non-S SKU lacks this magnet and cannot accept these sensors.
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