Airtac SAIJ200 Adjustable Cylinder SAIJ200AX170-40
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX170-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 170mm 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
- Stroke170 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX170-40
The AirTAC SAIJ200X170-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering robust performance for heavy-duty pneumatic tasks. It features a 200 mm bore that generates a substantial 21991 N push force at 0.7 MPa, while the integrated -40 mm adjustment mechanism allows you to trim the effective travel down to a precise 130-170 mm window. This built-in adjustability enables fine end-position tuning at commissioning without the need to physically swap the cylinder or bolt on external stops.
This specific SKU incorporates a SUS420J2 stainless steel piston rod (option A) for enhanced corrosion resistance and pairs with PT tapered port threading. It utilizes variable air cushions at both ends to decelerate the massive 3204 kgf maximum load, but it is important to note that the rear adjuster acts only as a travel stop, not a load-holding lock. For applications requiring position maintenance without live air pressure, a dedicated SAIL or BSAI locking cylinder would be required.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX170-40 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX170-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 170 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 SAIJ200AX170-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×170 | 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 SAIJ200AX170-40 Is Used
Heavy Press Tuning
Dial in the exact 130-170 mm end-stop during heavy press commissioning to accommodate varying material thicknesses without changing the actuator.
Product Changeover
Rapidly adjust the rear stopper for different product sizes on a packaging line, utilizing the 40 mm travel window to switch formats efficiently.
Heavy Fixture Positioning
Leverage the 21991 N push force to move large industrial fixtures into place, relying on the external stop for precise final placement.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX170-40 the Right Cylinder?
Choosing this 200 mm bore over a smaller neighbor, such as the 160 mm bore that yields 14074 N at 0.5 MPa, is justified when your application demands exceptionally high thrust. The adjustable stroke is specifically beneficial during machine setup and product changeover, as the 40 mm rear trim window allows operators to dial in the exact end-stop without replacing the entire actuator. Because this is a heavy-duty unit operating within the 30-500 mm/s speed range, the 40 mm diameter SUS420J2 rod and M36x2 thread provide substantial rigidity, though any application utilizing the full 170 mm travel should still employ an external guide to manage potential side loads.
When selecting this ISO 15552 dimensionally interchangeable cylinder, verify your system requires the SAIJ reduced mounting set, which includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting the FB, CA, CB, and CR mounts. This particular configuration lacks the -S magnet option, meaning it cannot host CMSE or DMSE sensors for position feedback.
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 SAIJ200AX170-40 FAQ
At a standard 0.7 MPa operating pressure, this 200 mm bore cylinder generates a push force of 21991 N and a pull force of 15080 N. It can achieve a maximum push force of 28274 N at 0.9 MPa.
The rear adjusting screw acts as a mechanical stopper that allows you to shorten the 170 mm nominal stroke by up to 40 mm, creating a usable travel window of 130-170 mm. This stopper only sets the travel end position and does not lock or hold the load without continuous air pressure.
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