Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X80-75S
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X80-75S is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 80mm 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
- Stroke80 mm
- Port sizeG1
- Acting typeDouble acting, adjustable stroke
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X80-75S
Generating massive thrust with 24543 N push at 0.5 MPa, this ISO 15552 tie-rod cylinder handles heavy-duty positioning. The four steel rods clamp the aluminum barrel securely, and the G1 air port feeds the 50 mm rod to deliver reliable power.
The external adjuster allows you to shorten the extend stroke on-site by up to 75 mm, meaning the usable extend range is 5-80 mm while the retract end stays fixed. This lets you fine-tune the end position without changing the cylinder itself. It yields a safe working load of about 14726 N, lifting roughly 1251 kg vertically with a 2:1 margin. Because this is a 250 mm bore, TPU seals are unavailable, but the standard NBR packing works from -20 to +70 C, and the Viton H option extends that to 150 C. The built-in -S magnet supports CMSG, DMSG, and EMSG sensors for precise tracking.
Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X80-75S Technical Specifications
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X80-75S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 80 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 SGCJ250X80-75S
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×80 | 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 SGCJ250X80-75S Is Used
Press Tonnage Tuning
Dial in the exact 5 to 80 mm extend contact point on a heavy stamping press without swapping cylinders, absorbing 24543 N at 0.5 MPa.
Heavy Pallet Stops
Halt loaded pallets weighing up to 1251 kg vertically, adjusting the stop screw window on the fly to match varying package dimensions.
Mold Clamping Adjustment
Secure heavy injection molds by fine-tuning the extend position on-site, ensuring precise alignment before applying the 5006 kgf maximum force.
Is the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X80-75S the Right Cylinder?
Size this 250 mm bore against the 200 mm option, which provides 15708 N push at 0.5 MPa, or evaluate if you need even more force. The adjustable stroke is perfect when you need to share a spare cylinder across multiple stroke variants or tune the end position on-site. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2 brackets. The -S magnet enables position sensing. Even at this 80 mm stroke, ensure adequate guiding to handle side loads. Remember that a plain cylinder drifts without live air; the cushion only decelerates, so add an external rod lock or pilot-operated check valve to hold loads securely.
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 SGCJ250X80-75S FAQ
It delivers 24543 N push and 23562 N pull at 0.5 MPa, or 34360 N push and 32986 N pull at 0.7 MPa. The theoretical maximum force is 5006 kgf at 1.0 MPa. It uses a G1 air port and a 50 mm rod.
The nominal 80 mm stroke is the maximum. The external adjuster lets you shorten the extend stroke on-site by up to 75 mm, giving a usable extend range of 5 to 80 mm. The retract end is fixed, and the stop sets position only; it does not lock the load.
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