Airtac SAIJ200 Adjustable Cylinder SAIJ200AX225-75
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX225-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 225mm 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
- Stroke225 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX225-75
The AirTAC SAIJ200X225-75 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering robust performance for heavy-duty automation. It features a SUS420J2 stainless steel rod (material code A) and a PT tapered port thread. By integrating an external adjusting screw at the rear, this model allows you to fine-tune the effective stroke within a 150-225 mm window, trimming up to 75 mm off the 225 mm nominal travel without swapping the barrel.
Operating at speeds of 30-500 mm/s, this bore 200 unit generates 15708 N of push force and 15080 N of pull force at 0.5 MPa, scaling to a maximum of 3204 kgf at 1.0 MPa. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of position switches. Because no magnet is specified, you would add a -S option to use AirTAC CMSE reed or DMSE solid-state sensors.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX225-75 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX225-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 225 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 SAIJ200AX225-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×225 | 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 SAIJ200AX225-75 Is Used
Heavy Press Positioning
Dial in the exact 150-225 mm retraction stop for large presses, allowing rapid product-size changeovers without mechanical modifications.
Large Assembly Tuning
Fine-tune the end-position of heavy assembly actuators at commissioning, using the 75 mm rear adjustment screw to perfect the cycle.
Variable Stop Automation
Set precise retract distances on automated heavy machinery, relying on the 15708 N push force to drive demanding tooling operations.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX225-75 the Right Cylinder?
Choose this adjustable-stroke variant when your machine setup requires variable end-stops or precise retraction positioning during commissioning, avoiding the need to bolt on external stops or change cylinders for product changeovers. If your application needs less force, stepping down to a bore 160 cylinder provides 9425 N of pull force at 0.5 MPa, whereas the bore 200 is required for maximum thrust.
When matching ISO 15552 interchangeable replacements, specify: 200 mm bore, 225 mm stroke, 75 mm adjustment, PT G3/4 port, and the SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that the rear adjuster acts only as a travel stop to decelerate the end-of-stroke position; it does not hold the load without live air. For true load-holding without pneumatic pressure, consider the SAIL air-released lock or BSAI clamp-lock cylinders.
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 SAIJ200AX225-75 FAQ
At 0.5 MPa, this bore 200 cylinder provides 15708 N of push force and 15080 N of pull force, reaching a maximum of 3204 kgf at 1.0 MPa. Its operating speed range is 30-500 mm/s.
The rear adjusting screw acts as an external stopper that lets you shorten the effective travel from the 225 mm nominal stroke down to a minimum of 150 mm, creating a 150-225 mm usable window. It decelerates the travel end but does not lock the load without live air pressure.
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