Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X300-50S
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X300-50S is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 300mm 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
- Stroke300 mm
- Port sizeG1
- Acting typeDouble acting, adjustable stroke
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X300-50S
Delivering 24543 N of push force at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder integrates a 50 mm external adjuster to shorten the extend stroke on-site. The nominal 300 mm stroke acts as the maximum, letting you fine-tune the end position without swapping the unit. Four steel tie rods clamp the aluminium barrel to the covers for high structural rigidity, and the G1 pneumatic port handles the massive air volume required for the 250 mm bore. A built-in piston magnet supports CMSG, DMSG and EMSG position switches.
Because of its immense output, the safe working load sits around 14726 N, which translates to lifting roughly 1251 kg vertically with a 2:1 safety margin. The retract end remains fixed while the extend stroke can be dialed down to 250 mm. Note that TPU seals are not offered on this 250 mm bore; standard NBR packing handles -20 to +70 C, with a Viton H option available for 0 to 150 C environments.
Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X300-50S Technical Specifications
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X300-50S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 300 mm |
| Acting type | Double acting, adjustable stroke |
| 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 | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 24544 N | 23562 N |
| 0.7 MPa | 34361 N | — |
| Max (@1.0 MPa) | 5006 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X300-50S
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×300 | 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 SGCJ200-250 Adjustable Cylinder SGCJ250X300-50S Is Used
Heavy Stamp Pressing
Provides the 34360 N extend force at 0.7 MPa needed for large metal forming, using the 50 mm adjuster to precisely set the bottom dead center without moving the press frame.
Massive Platen Lowering
Safely lowers 1251 kg platens with a 2:1 margin, relying on the 60 mm adjustable air cushions to decelerate the heavy load smoothly at the fixed retract end.
Injection Mold Clamping
Generates up to 5006 kgf of theoretical clamping pressure at 1.0 MPa, with the external stop screw allowing on-site tuning of the mold close position.
Is the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X300-50S the Right Cylinder?
As the largest bore in the SGCJ family, this 250 mm model sits at the top edge, offering 24543 N push at 0.5 MPa compared to 15708 N on the 200 mm bore. If your application only requires 34360 N at 0.7 MPa, the 200 mm bore provides a lighter footprint, but for maximum thrust up to 5006 kgf at 1.0 MPa, this is the choice. The 50 mm adjustable window is ideal for sharing spares across multiple stroke variants or finalizing end positions during machine commissioning. Mounting options include FA, LB, TC, FTC, TCM1 and TCM2 brackets. The -S suffix confirms the magnet is present for electronic sensors. For any stroke length over 500 mm, always use external guide rails to prevent side-load damage to the rod.
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 SGCJ200-250 Adjustable Cylinder SGCJ250X300-50S FAQ
At 0.5 MPa it provides 24543 N push and 23562 N pull. At 0.7 MPa the output is 34360 N push and 32986 N pull. The theoretical maximum force is 5006 kgf at 1.0 MPa. It features a G1 air port and a 50 mm piston rod.
The -50 code means an external adjuster can shorten the extend stroke by up to 50 mm on-site, reducing the usable extend from the 300 mm maximum down to 250 mm. The retract end remains fixed. The S indicates a built-in magnet for CMSG, DMSG or EMSG sensors. The stop screw sets position only; it does not hold the load on air loss.
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