Airtac SAIJ200 Adjustable Cylinder SAIJ200AX175-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX175-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 175mm 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
- Stroke175 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX175-40S
The AirTAC SAIJ200X175-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 175 mm stroke that can be dialed back by up to 40 mm, creating a precise 135-175 mm usable travel window for commissioning flexibility. Delivering 15708 N of push force at 0.5 MPa, this bore size handles heavy-duty positioning tasks. The extruded aluminum barrel features sensor grooves on both sides, and the included magnet (-S) supports CMSE reed and DMSE electronic solid-state switches for exact position feedback.
This model features a SUS420J2 stainless steel rod (code A) paired with a robust M36x2 rod thread and G3/4 PT tapered ports. The generous 50 mm cushioning at both ends manages the kinetic energy of this high-thrust unit. Because the rear adjuster acts strictly as a mechanical stop to set the retraction end-point, it does not hold the load without live air pressure. For load-holding requirements without continuous air, an external rod lock or related types like SAIL or BSAI should be specified.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX175-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX175-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 175 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 SAIJ200AX175-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×175 | 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 SAIJ200AX175-40S Is Used
Heavy Press Tuning
Dial in the exact 135-175 mm end-stop during heavy press commissioning without adding external mechanical stops or changing the cylinder.
Product Size Changeover
Quickly adjust the retraction end-point up to 40 mm on automated lines when switching between different product sizes or formats.
High-Force Positioning
Leverage 15708 N of push force at 0.5 MPa to move and position heavy industrial assemblies while fine-tuning the final resting position.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX175-40S the Right Cylinder?
Selecting this 200 mm bore cylinder is appropriate when an application demands substantial thrust, such as 21991 N push at 0.7 MPa, combined with the ability to fine-tune the end position during machine setup or product changeover. If the full 175 mm stroke is not consistently required, the 40 mm adjustment range prevents the need to swap out the entire cylinder. When migrating from a fixed-stroke unit, match the 200 mm bore, 175 mm stroke, 40 mm adjustment, G3/4 PT ports, and the -S magnet. SAIJ utilizes a specific mounting subset including Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR options.
Although the 175 mm stroke is below the 300 mm threshold where external guides become strictly critical, the heavy moving mass of a 200 bore cylinder still necessitates careful alignment. The substantial 40 mm rod diameter and M36x2 thread provide excellent resistance to side loads, but unsupported heavy loads should always be guided externally. If load holding is necessary upon loss of air pressure, integrate a pilot-operated check valve or select a SAIL locking cylinder instead of relying on the adjustment stopper.
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 SAIJ200AX175-40S FAQ
At 0.5 MPa, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. If operating pressure is increased to 0.7 MPa, the push force rises to 21991 N.
The rear adjuster acts as a mechanical stop that shortens the effective stroke. For this 175 mm nominal stroke model, you can trim the travel back by up to 40 mm, resulting in a usable 135-175 mm adjustable window. It sets the end position but does not lock the load without live air.
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