Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-20
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-20 is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 75mm 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
- Stroke75 mm
- Port sizeG1
- Acting typeDouble acting, adjustable stroke
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-20
Delivering massive thrust in a compact footprint, this large-bore ISO 15552 tie-rod cylinder pushes with 24543 N and pulls with 23562 N at 0.5 MPa. The four steel tie rods clamp the aluminum barrel securely to the covers, while the G1 air port feeds the 50 mm piston rod. Because this is a 250 mm bore, the standard TPU seal is unavailable; instead it uses an NBR front-cover packing with a Viton H high-temperature option for 0 to 150 C environments.
The external adjuster lets you shorten the extend stroke on site by up to 20 mm, meaning the usable extend range is 55 to 75 mm without changing the cylinder itself. Dimensionally interchangeable per the ISO 15552 mounting interface, it drops directly into existing large-bore fixtures. For real work it handles about 14726 N safely, lifting roughly 1251 kg vertically with a 2:1 margin. Note this SKU lacks the -S magnet and cannot take a CMSG, DMSG or EMSG sensor.
Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-20 Technical Specifications
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-20 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 75 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 SGCJ250X75-20
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×75 | 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 SGCJ250X75-20 Is Used
Heavy Pallet Up-End
Rotates loaded pallets into a vertical stance, using the 55 to 75 mm adjustable extend window to precisely set the final tipping angle without repositioning the cylinder.
Press Fit Tuning
Drives large bearings into housings, relying on the on-site 20 mm shortening screw to dial in the exact bottoming depth for different housing batches.
Bulk Gate Actuation
Opens heavy bulk-material discharge gates, using the massive 24543 N push force at 0.5 MPa to overcome initial material bridging weight.
Is the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X75-20 the Right Cylinder?
When sizing this unit, stepping down to a 200 mm bore yields 15708 N of push at 0.5 MPa, whereas this 250 mm bore provides 24543 N at the same pressure. The 20 mm adjustable window is ideal for sharing a spare cylinder across multiple stroke variants or fine-tuning the end position during machine commissioning. Mounting options include FA, LB, TC, FTC, TCM1 and TCM2 brackets. If you need position feedback, select the -S magnet version for sensor compatibility. Because the retract end is fixed and the cushion only decelerates, use an external rod lock or pilot-operated check valve for held 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 SGCJ250X75-20 FAQ
This 250 mm bore cylinder features a G1 air port and a 50 mm rod. It pushes with 24543 N and pulls with 23562 N at 0.5 MPa. At 0.7 MPa it pushes 34360 N and pulls 32986 N. The theoretical maximum force is 5006 kgf at 1.0 MPa.
The nominal 75 mm extend stroke is the maximum. The external stop screw lets you shorten the extend stroke on site by up to 20 mm, giving a usable extend range of 55 to 75 mm. The retract end remains fixed, and the stop only sets the end position rather than locking the load.
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