Airtac SAIJ200 Adjustable Cylinder SAIJ200AX155-20S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX155-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 155mm 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
- Stroke155 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX155-20S
The AirTAC SAIJ200X155-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to fine-tune the end position during commissioning. It provides a usable travel window of 135-155 mm, letting you trim up to 20 mm off the 155 mm nominal stroke without external stops. Built for heavy loads, it delivers 15708 N of push force and 15080 N of pull force at 0.5 MPa.
This variant features a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and includes a magnet for position sensing. It operates at 30-500 mm/s and uses a G3/4 port. The extruded aluminum barrel carries sensor grooves on both sides, and the adjustable stopper works alongside the standard air cushions to decelerate the load at travel end.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX155-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX155-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 155 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 SAIJ200AX155-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×155 | 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 SAIJ200AX155-20S Is Used
Heavy Press Tuning
Dial in the exact 135-155 mm end position for heavy pressing operations without adding external mechanical stops.
Product Changeover
Quickly adjust the stroke window during line changeovers to accommodate different product sizes while maintaining high thrust.
Assembly Line Actuation
Provide robust 15708 N push force for large assembly stations, using the rear screw to fine-tune the retraction point.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX155-20S the Right Cylinder?
Select this 200 mm bore cylinder when an application requires high thrust, such as the 15708 N push force at 0.5 MPa, alongside precise end-position tuning. If your force requirements are lower, stepping down to a 160 mm bore yields 10053 N of push force. The adjustable stroke is ideal for product changeovers on a line, providing a variable end-stop without swapping the cylinder. For any stroke of 300 mm or more, an external guide is recommended to manage side loads, though this 155 mm stroke is well within standard limits.
Because the rear adjuster acts only as a travel stop and the air cushions handle deceleration, neither will hold a load without live air pressure. For load-holding requirements without continuous air, consider the SAIL (air-released lock) or BSAI (clamp-lock) variants. This model is dimensionally interchangeable per ISO 15552 and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, omitting FB, CA, CB, and CR. The -S magnet works with AirTAC CMSE reed and DMSE electronic sensors.
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 SAIJ200AX155-20S FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. It can reach a maximum push force of 3204 kgf at 1.0 MPa.
The rear adjuster allows you to shorten the effective stroke by up to 20 mm, creating a usable travel window of 135 to 155 mm. This stopper sets the end position but does not lock the load without live air pressure.
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