Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X900-20
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X900-20 is a genuine double acting, adjustable stroke 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, adjustable stroke
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X900-20
Generating massive thrust for heavy industry, this large-bore ISO 15552 tie-rod cylinder delivers 24543 N of push force at 0.5 MPa. Four steel tie rods clamp the aluminum barrel to the covers, providing structural rigidity, while the G1 pneumatic port handles high flow volumes.
The external adjuster allows you to shorten the extend stroke on-site by up to 20 mm, giving a usable range of 880-900 mm for fine-tuning end positions without mechanical rebuilds. Dimensionally interchangeable per the ISO 15552 mounting interface, it drops into existing large-bore fixtures. It handles a safe working load of about 14726 N, which translates to lifting roughly 1251 kg vertically with a 2:1 margin. Note that TPU seals are unavailable for this 250 mm bore; it uses NBR buffers, with a Viton H option for 0-150 C environments.
Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X900-20 Technical Specifications
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X900-20 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 900 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 SGCJ250X900-20
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke 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 SGCJ200-250 Adjustable Cylinder SGCJ250X900-20 Is Used
Heavy Press Ejection
Delivers 34360 N of extend force at 0.7 MPa to eject large formed parts, with the 20 mm adjuster tuning the ejection clearance precisely.
Stamping Clamp Stop
Secures heavy steel plates during stamping, using the 880-900 mm usable stroke to dial in the exact clamping height without repositioning the fixture.
Large Mold Handling
Shifts substantial injection molds along the G1 port's high-flow capacity, relying on the rigid tie-rod frame to maintain alignment over the 900 mm travel.
Is the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X900-20 the Right Cylinder?
When sizing this unit, stepping down to a 200 mm bore yields 15708 N push at 0.5 MPa, whereas this 250 mm bore provides 24543 N, and it remains the top tier with a 5006 kgf maximum at 1.0 MPa. The 20 mm adjustable window is ideal for sharing spares across slightly different stroke variants or finalizing end positions on-site. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2. Because this SKU lacks the -S suffix, it cannot accept CMSG/DMSG/EMSG magnetic sensors. Furthermore, the 900 mm stroke demands external guide rails to prevent rod bending under 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 SGCJ200-250 Adjustable Cylinder SGCJ250X900-20 FAQ
At 0.5 MPa it provides 24543 N push and 23562 N pull. At 0.7 MPa it delivers 34360 N push and 32986 N pull. The theoretical maximum force is 5006 kgf at 1.0 MPa.
The -20 code means an external stop screw shortens the extend stroke by up to 20 mm on-site. The usable extend range is 880-900 mm, with 900 mm being the maximum. The retract end remains fixed, and this stop is for positioning only, not load holding.
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