Airtac SGCD Dual Rod Cylinder SGCD250X900S
The AirTAC Airtac SGCD Dual Rod Cylinder SGCD250X900S is a genuine double acting, double rod ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 900mm stroke, G1 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.
- BoreØ250 mm
- Stroke900 mm
- Port sizeG1
- Acting typeDouble acting, double rod
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGCD Dual Rod Cylinder SGCD250X900S
Delivering 23562 N of thrust in both directions at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder features a piston rod exiting both covers for perfectly symmetric load paths. The four steel tie rods clamp the aluminum barrel securely, while the G1 air port feeds the 50 mm twin rod configuration. Because the rod passes through both ends, the effective pressure area remains identical on extension and retraction, eliminating push-pull force disparity.
This -S variant includes a built-in piston magnet for CMSG, DMSG, or EMSG position switches. It provides a safe working load of about 14137 N, which is enough to vertically lift roughly 1201 kg with a two-to-one safety margin. Note that the 250 mm bore utilizes NBR seals rather than TPU, and a Viton H option extends operating temperatures from 0 to 150 degrees Celsius.
Airtac SGCD Dual Rod Cylinder SGCD250X900S Technical Specifications
| Model | Airtac SGCD Dual Rod Cylinder SGCD250X900S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 900 mm |
| Acting type | Double acting, double rod |
| Port size | G1 |
| Rod thread | M42×2.0 |
| 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, 60 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 (Ø250mm)
| Pressure | Force (both ways) | — |
|---|---|---|
| 0.5 MPa | 23562 N | 23562 N |
| 0.7 MPa | 32987 N | 32987 N |
| Max (@1.0 MPa) | 5006 kgf | |
Double-rod: the rod passes through both covers, so output force is equal in both directions.
Model Code: Airtac SGCD Dual Rod Cylinder SGCD250X900S
| SGCD | ISO 15552 tie-rod cylinder (double-rod type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×900 | 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 SGCD250X900S Is Used
Twin-Spindle Machining
Drives two opposing machining heads simultaneously from one symmetric piston, keeping force equal on both strokes.
Dual-End Transfer Pusher
Uses the protruding rear rod to index a secondary conveyor lane while the front rod pushes the primary line.
Balanced Heavy Platen Lowering
Equal push and pull forces prevent platen twist during heavy vertical descent, ensuring smooth parallel motion.
Is the Airtac SGCD Dual Rod Cylinder SGCD250X900S the Right Cylinder?
As the largest bore in the series, this 250 mm model sits at the top edge of the range, delivering 23562 N both ways at 0.5 MPa, compared to 15079 N for the 200 mm bore. Choose a double-rod configuration when your application demands anti-rotation stability, twin tooling driven from one piston, or a mounting point for a rear sensor cam. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2. The -S suffix ensures compatibility with CMSG, DMSG, and EMSG sensors. Because the 900 mm stroke is substantial, always provide external guide support to prevent rod bending and absorb side loads.
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 SGCD250X900S FAQ
Force is equal both ways: 23562 N at 0.5 MPa, 32986 N at 0.7 MPa, and a maximum theoretical 4805 kgf at 1.0 MPa. It features a G1 air port, a 50 mm rod, and an M42x2.0 rod thread.
No, a standard cylinder drifts when air is lost because the adjustable 60 mm cushions only decelerate the piston near stroke end. For suspended loads, install an external rod lock or a pilot-operated check valve.
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