Airtac SAIJ200 Adjustable Cylinder SAIJ200AX195-20S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX195-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 195mm 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
- Stroke195 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX195-20S
The AirTAC SAIJ200X195-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 175 to 195 mm. Delivering 15708 N of push force at 0.5 MPa, this massive 200 mm bore actuator handles heavy-duty positioning. It features a SUS420J2 stainless steel rod (option A) for superior corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors.
Unlike a fixed-stroke SAI cylinder, this model uses an external stopper screw at the rear to fine-tune the retract end-position during commissioning without adding external stops. The mounting interface is dimensionally interchangeable per ISO 15552 and supports a reduced set of brackets: Basic, FA, LB, TC, FTC, TCM1, and TCM2. The rear adjuster acts purely as a travel stop and does not hold the load without live air.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX195-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX195-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 195 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 SAIJ200AX195-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×195 | 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 SAIJ200AX195-20S Is Used
Heavy Press Tuning
Dial in the exact 175-195 mm retract distance during heavy press setup to accommodate varying material thicknesses without changing the tooling.
Assembly Line Changeover
Quickly adjust the end-stop for the retract stroke when switching the production line to a new product size, saving retooling time.
Automated Welding
Fine-tune the electrode position on large automated welding fixtures, using the 21991 N push force at 0.7 MPa to maintain rigid clamping.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX195-20S the Right Cylinder?
Choose this 200 mm bore cylinder when your application requires up to 15708 N of thrust at 0.5 MPa (or 21991 N at 0.7 MPa) and a nominal 195 mm travel that needs precise end-position tuning. If you need less force, stepping down to a 160 mm bore yields 10053 N of push force at 0.5 MPa. Because the 195 mm stroke is substantial, an external guide is recommended to manage side loads on the M36x2 rod thread.
The adjustable stroke is ideal for machine changeovers where the exact end-of-stroke varies slightly, eliminating the need to swap cylinders. For load-holding without live air pressure, note that this plain SAIJ cylinder does not lock; you must use a SAIL (air-released lock) or BSAI (clamp-lock) cylinder instead. When replacing an ISO 15552 unit, match the 200 mm bore, 195 mm stroke, 20 mm adjust, PT tapered G3/4 port, and the -S magnet requirement.
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 SAIJ200AX195-20S FAQ
The rear adjuster screw acts as a mechanical stop that lets you trim the effective stroke back by up to 20 mm. This provides a usable travel window of 175 to 195 mm. It only sets the end position and does not lock or hold the load without continuous air pressure.
At a 0.5 MPa operating pressure, the SAIJ200X195-20-S provides 15708 N of push force and 15080 N of pull force. At 0.7 MPa, the push force increases to 21991 N.
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