Airtac SGCD Dual Rod Cylinder SGCD250X50S
The AirTAC Airtac SGCD Dual Rod Cylinder SGCD250X50S is a genuine double acting, double rod ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 50mm 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
- Stroke50 mm
- Port sizeG1
- Acting typeDouble acting, double rod
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGCD Dual Rod Cylinder SGCD250X50S
Delivering 23562 N of thrust in both directions at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder uses a twin-rod piston to guarantee identical push and pull forces. The four steel tie rods clamp the aluminium barrel securely, while the G1 air port supplies ample flow for the 250 mm bore. Because the rod passes through both covers, it creates a symmetric load path that resists torsional twist and provides non-rotating anti-twist guidance for heavy mechanisms.
With a 0.5 MPa input, you get a safe working load of about 14137 N for real work, which translates to lifting roughly 1201 kg vertically with a 2:1 safety margin. This -S variant includes a built-in piston magnet for CMSG, DMSG, or EMSG switches. Note that TPU seals are unavailable for this 250 mm bore; it uses NBR packings, though a Viton H option extends operating temperatures from 0 up to 150 C.
Airtac SGCD Dual Rod Cylinder SGCD250X50S Technical Specifications
| Model | Airtac SGCD Dual Rod Cylinder SGCD250X50S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 50 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 SGCD250X50S
| SGCD | ISO 15552 tie-rod cylinder (double-rod type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×50 | 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 SGCD250X50S Is Used
Twin-Spindle Press
Drives two opposing forming tools simultaneously with equal 23562 N force, using the symmetric double-rod layout to maintain parallelism without torsional twist.
Heavy Platen Lifter
Lifts roughly 1201 kg of vertical load safely at 0.5 MPa, relying on the equal both-ways force to hold the platen steady through the entire travel.
Synchronized Transfer Gate
Shifts a heavy sorting gate from either rod end, using the M42x2.0 thread for secure mechanical linkage and the 60 mm cushions to decelerate the mass.
Is the Airtac SGCD Dual Rod Cylinder SGCD250X50S the Right Cylinder?
As the largest bore in the SGCD family, this 250 mm model sits at the high edge of the range, stepping up from the 200 mm version which provides 15079 N both ways at 0.5 MPa. Choose this twin-rod architecture when your application demands anti-rotation stability, twin tooling driven from one piston, or a back-end sensor cam. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. The included -S magnet enables position sensing. Even with a short 50 mm stroke, you must support any external side loads with an external guide to prevent premature 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 SGCD250X50S FAQ
Because the rod exits both ends, force is equal in both directions: 23562 N at 0.5 MPa and 32986 N at 0.7 MPa. The theoretical maximum is 4805 kgf at 1.0 MPa. This 250 mm bore cylinder uses a G1 air port.
No, a plain double-rod cylinder drifts without live air, as the 60 mm adjustable cushions only decelerate the piston near stroke end rather than locking it. To hold a load securely, install an external rod lock or a pilot-operated check valve.
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