Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X900-75
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X900-75 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 SGCJ250X900-75
Delivering massive thrust for heavy industry, this large-bore ISO 15552 tie-rod cylinder pushes with 24543 N at 0.5 MPa. Four steel rods clamp the aluminum barrel to the covers for high rigidity, and the G1 air port feeds the 50 mm rod. It handles a safe working load of about 14726 N, which means you can vertically lift roughly 1251 kg with a 2:1 safety margin.
The -75 code means an external adjuster shortens the extend stroke on site by up to 75 mm, letting you fine-tune the end position from 825 to 900 mm without changing the cylinder itself. The retract end stays fixed. Because this is a 250 mm bore, TPU seals are not available; standard NBR packing handles -20 to +70 C, while a Viton H option raises the heat limit to 150 C. Note this SKU lacks the -S magnet, so it cannot take CMSG/DMSG/EMSG sensors.
Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X900-75 Technical Specifications
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X900-75 |
|---|---|
| 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 SGCJ250X900-75
| 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 SGCJ250X900-75 Is Used
Press Tuning
Dial in the exact 825 to 900 mm end position on a heavy metal stamping press without swapping the cylinder.
Heavy Vertical Lift
Lift roughly 1251 kg with a 2:1 safety margin, using the 75 mm window to adjust the lift height on site.
Shared Spare
Keep one cylinder as a universal spare for 825 to 900 mm machines, shortening the extend stroke as needed.
Is the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X900-75 the Right Cylinder?
Size this 250 mm bore against the 200 mm option, which offers 15708 N push at 0.5 MPa, or step up if you need the absolute maximum 5006 kgf at 1.0 MPa. The adjustable stroke is perfect for sharing one spare across multiple stroke variants or dialing in a precise pressing distance on site. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2. At a 900 mm stroke, large-bore cylinders need external rod-end support to prevent side-load bending. Remember that a plain cylinder drifts on air loss; the air cushion only decelerates, so add an external rod lock or pilot-operated check valve to hold a load.
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 SGCJ250X900-75 FAQ
At 0.5 MPa it pushes 24543 N and pulls 23562 N. At 0.7 MPa it pushes 34360 N and pulls 32986 N. The theoretical maximum force is 5006 kgf at 1.0 MPa. The G1 port feeds the 50 mm rod.
The nominal stroke is 900 mm, which is the maximum. An external stop screw lets you shorten the extend stroke by up to 75 mm on site, giving a usable extend range of 825 to 900 mm. The retract end is fixed, and the stop is not a load lock.
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