Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X450-20
The AirTAC Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X450-20 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 SGCJ250X450-20
Delivering massive thrust, this large-bore ISO 15552 tie-rod cylinder pushes with 24543 N and pulls with 23562 N at 0.5 MPa. Four steel tie rods clamp the aluminum barrel to the covers for structural rigidity. 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 G1 air port feeds the 50 mm piston rod.
The external adjuster lets you shorten the extend stroke on-site by up to 20 mm, giving a usable range of 430 to 450 mm without changing the cylinder itself. The nominal 450 mm stroke is the maximum, while the retract end remains fixed. Because this is a 250 mm bore, TPU seals are not available; it uses NBR packings, with a Viton H option for 0 to 150 C environments. This plain SKU lacks a magnet and cannot take a sensor.
Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X450-20 Technical Specifications
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X450-20 |
|---|---|
| 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 SGCJ250X450-20
| 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 SGCJ250X450-20 Is Used
Heavy Pallet Forming
Lifts steel pallets weighing up to 1251 kg vertically, using the 20 mm adjuster to fine-tune the exact stacking height on the production line.
Hydraulic Press Clamping
Generates 34360 N of clamping force at 0.7 MPa to hold heavy steel plates, adjusting the extend end position to accommodate different material thicknesses.
Large Mold Ejection
Ejects massive industrial molds from machines, using the 60 mm adjustable air cushions to decelerate the 50 mm rod smoothly before the end of stroke.
Is the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X450-20 the Right Cylinder?
Size this 250 mm bore against the neighboring 200 mm option, which provides 15708 N of push at 0.5 MPa. If you need more power, this 250 mm unit maxes out the range at 24543 N. The 20 mm adjustable window is ideal for fine-tuning end positions on-site or sharing a spare across stroke variants. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2 brackets. For any stroke at or above 500 mm, use a guide rail to prevent side-load damage. Note that a plain cylinder drifts without live air; use an external rod lock or pilot-operated check valve for load holding.
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 SGCJ250X450-20 FAQ
At 0.5 MPa it pushes with 24543 N and pulls with 23562 N. At 0.7 MPa the push is 34360 N and the pull is 32986 N. The theoretical maximum force is 5006 kgf at 1.0 MPa.
An external stop screw shortens the extend stroke by up to 20 mm on-site, giving a usable extend range of 430 to 450 mm. The nominal 450 mm stroke is the maximum, and the retract end is fixed. This stop only sets the end position; it does not lock the load.
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1-Year Warranty
Covers non-human-caused product damage.
Made to Order
Large-bore cylinders built to order — confirm lead time.
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