Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X450-75
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X450-75 is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 450mm 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
- Stroke450 mm
- Port sizeG1
- Acting typeDouble acting, adjustable stroke
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X450-75
Delivering 24543 N of push force at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder handles heavy industrial tasks with ease. The four steel tie rods clamp the aluminum barrel to the covers for high structural rigidity, and the G1 air port feeds the 50 mm piston rod to generate up to 5006 kgf at 1.0 MPa. Because this is a 250 mm bore, TPU seals are not available; instead it uses NBR buffer gaskets with a Viton H high-temperature option rated for 0 to 150 C.
The -75 code means an external adjuster can shorten the extend stroke on-site by up to 75 mm, letting you fine-tune the end position from 375 to 450 mm without changing the cylinder itself. This yields a safe working load of about 14726 N, which is roughly 1251 kg lifted vertically with a 2:1 margin. Note that this specific SKU lacks the -S magnet, so it cannot accept CMSG, DMSG or EMSG sensors.
Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X450-75 Technical Specifications
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X450-75 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 450 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 SGCJ250X450-75
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×450 | 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 SGCJ250X450-75 Is Used
Heavy Pallet Forming
Lifts and compacts heavy pallet loads using the 24543 N push force, with the 75 mm extend adjuster tuning the final press height precisely on-site.
Large Gate Actuation
Drives massive industrial gates where the G1 port and 50 mm rod provide high flow and stability, adjusting the 450 mm stroke to match the valve travel.
Industrial Pressing
Applies up to 5006 kgf of clamping pressure in heavy pressing stations, using the external stop to set exact material deformation limits.
Is the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X450-75 the Right Cylinder?
When sizing this unit, stepping down to a 200 mm bore lowers the 0.5 MPa push force to 15708 N, while this 250 mm bore maximizes thrust at 24543 N. The adjustable stroke is ideal for sharing a single spare across multiple stroke variants or tuning end positions on-site. Mounting options include FA, LB, TC, FTC, TCM1 and TCM2 brackets. For the 450 mm stroke, ensure external guide rails are used to prevent side-load damage. Remember that a plain cylinder drifts on air loss; 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 SGCJ250X450-75 FAQ
At 0.5 MPa it provides 24543 N push and 23562 N pull. At 0.7 MPa it provides 34360 N push and 32986 N pull. The theoretical maximum force is 5006 kgf at 1.0 MPa. It uses a G1 air port and an M42x2.0 rod thread.
The nominal 450 mm stroke is the maximum. The external adjuster lets you shorten the extend stroke on-site by up to 75 mm, yielding a usable extend range of 375 to 450 mm. The retract end remains fixed, and this stop is for positioning only, not load holding.
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