Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-20
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 425mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ200 mm
- Stroke425 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-20
The AirTAC SAIJ200X425-20 is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty applications. It features a rear-mounted adjusting screw that allows you to fine-tune the retract end position, providing a usable travel window of 405-425 mm from its 425 mm nominal stroke. Delivering a robust 15080 N pull force at 0.5 MPa, it handles massive loads while maintaining dimensionally interchangeable ISO 15552 mounting interfaces.
This made-to-order configuration utilizes an SUS420J2 stainless steel piston rod for enhanced durability against harsh environments and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement. Note that the rear adjuster functions purely as a mechanical stop to set deceleration and end-position; it does not hold the load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 425 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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, 50 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×425 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-20 Is Used
Heavy Press End-Stop Tuning
Dial in the exact 405-425 mm retract position during machine setup to accommodate varying workpiece thicknesses without adding external mechanical stops.
Automated Assembly Forming
Leverage the 21991 N push force at 0.7 MPa to seat large components, using the rear adjuster to fine-tune the final pressing depth on the production line.
Product Size Changeover
Quickly reconfigure the effective stroke window by up to 20 mm when switching the production line to a new product variant, minimizing downtime.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-20 the Right Cylinder?
Choose this 200 mm bore cylinder when your application requires maximum thrust, such as 21991 N push force at 0.7 MPa, combined with precise end-stop tuning during commissioning. If you need to step down the force, the neighboring 160 mm bore provides 9425 N of pull force at 0.5 MPa. Because the 425 mm stroke exceeds the standard 1500 mm maximum for this bore, it is built as a non-standard made-to-order item; furthermore, any stroke of 300 mm or more on a large-bore cylinder requires an external guide to prevent excessive side-loading on the rod.
An adjustable stroke is preferred over a fixed SAI cylinder when you need variable end-stops for product changeovers without physically swapping the actuator. For load-holding without continuous live air pressure, this cylinder is insufficient—the adjuster is a stop, not a lock—so you should look to the SAIL (air-released lock) or BSAI (clamp-lock) series, or integrate an external pilot-operated check valve. This SKU matches a 200 mm bore, 425 mm stroke, 20 mm adjustment, PT port, Basic/FA/LB/TC/FTC/TCM1/TCM2 mountings, and no magnet.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
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 on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-20 FAQ
At 0.5 MPa, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At 0.7 MPa, the push force increases to 21991 N.
The rear adjusting screw acts as a mechanical stopper, allowing you to shorten the 425 mm nominal stroke by up to 20 mm, resulting in a 405-425 mm usable travel window. It only sets the end position and does not lock the load.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ200 Adjustable Cylinder SAIJ200AX425-20
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.