Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X80-40
The AirTAC SGCJ200-250 Adjustable Cylinder SGCJ250X80-40 is a genuine double acting, double rod, 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, double rod, adjustable stroke
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X80-40
Delivering massive thrust for heavy industry, 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 high structural rigidity. The unit features a G1 air port and a 60 mm adjustable air cushion at each end.
The external adjuster lets you shorten the extend stroke on-site by up to 40 mm, meaning the usable extend range is 40-80 mm from the 80 mm nominal maximum. You can fine-tune the end position without changing the cylinder itself. Dimensionally interchangeable per the ISO 15552 mounting interface, it drops into existing large-bore fixtures. Note that TPU seals are not available on this 250 mm bore; it uses NBR buffer gaskets, with a Viton H option for 0-150 C environments.
Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X80-40 Technical Specifications
| Model | Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X80-40 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 80 mm |
| Acting type | Double acting, double rod, 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 | 23562 N | 23562 N |
| 0.7 MPa | 32987 N | 32987 N |
| Max (@1.0 MPa) | 4805 kgf | |
SGCJ is double-rod: the rear rod that carries the stroke adjuster passes through the rear cover, so both piston faces lose rod area. Push is shown at the annular-area value (conservative).
Model Code: Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X80-40
| 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. On Ø250 the blank code is the standard NBR build (no TPU).
Where the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X80-40 Is Used
Heavy Press Clamping
Provides up to 34360 N of clamping force at 0.7 MPa for securing thick steel plates in a hydraulic press setup, with the 40 mm adjuster tuning the final grip position.
Stamping End Stop
Acts as a robust end stop in a heavy stamping line, using the 60 mm adjustable cushion to decelerate fast-moving carriers safely over a 40-80 mm extend range.
Platform Lowering
Lowers heavy material platforms weighing around 1251 kg, relying on the rigid tie-rod construction to maintain alignment under high vertical loads.
Is the Airtac SGCJ200-250 Adjustable Cylinder SGCJ250X80-40 the Right Cylinder?
If you need less force, the 200 mm bore provides a lighter alternative. The 40 mm adjustable window is ideal when you need to share a spare cylinder across stroke variants or fine-tune the end position on-site. Mounting options include FA, LB, TC, FTC, TCM1 and TCM2. Because this SKU lacks the -S suffix, it cannot take a magnetic sensor; you need the -S variant for CMSG/DMSG/EMSG switches. Even at 80 mm stroke, guide the load to prevent side-load wear.
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 SGCJ250X80-40 FAQ
This 250 mm bore cylinder features a G1 air port, a 50 mm rod, and an M42x2.0 rod thread. The theoretical maximum force is 5006 kgf at 1.0 MPa.
The external adjuster lets you shorten the extend stroke on-site by up to 40 mm. The nominal 80 mm stroke is the maximum, giving a usable extend range of 40-80 mm, while the retract end remains fixed. This mechanism sets the end position and does not hold the load; for load holding on air loss, use an external rod lock or pilot-operated check valve.
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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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