Airtac SAIJ200 Adjustable Cylinder SAIJ200AX170-75S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX170-75S 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 SAIJ200AX170-75S
The AirTAC SAIJ200X170-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust up to 15708N at 0.5 MPa and 28274N at 0.9 MPa. By turning the rear stopper screw, you can dial back the 170 mm nominal stroke by up to 75 mm, creating a precise 95-170 mm usable travel window for product changeovers without swapping the barrel. This unit features a SUS420J2 stainless steel rod (code A) for superior corrosion resistance and includes a magnet for solid-state DMSE or reed CMSE position sensing.
Fitted with PT tapered G3/4 ports and a robust 40 mm cushion at both ends, this 200 mm bore actuator handles heavy dynamics smoothly. The extruded aluminum barrel provides dual sensor grooves, while the external adjuster acts purely as a travel stop for end-position tuning. It is not a locking mechanism, so the cylinder cannot hold loads without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX170-75S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX170-75S |
|---|---|
| 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 SAIJ200AX170-75S
| 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 SAIJ200AX170-75S Is Used
Heavy Press Fine-Tuning
Dial in the exact 95-170 mm end-stop during heavy press commissioning to accommodate varying material thicknesses without adding external stopper blocks.
Multi-Product Line Changeover
Rapidly adjust the stroke window on a shared production line to handle different pallet or product sizes, minimizing downtime between runs.
High-Force Positioning
Leverage the 15708N thrust at 0.5 MPa to move heavy assemblies into precise final positions, using the rear screw to set the exact retraction limit.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX170-75S the Right Cylinder?
Selecting this 200 mm bore over a 160 mm neighbor steps the 0.5 MPa push force up from 10053N to 15708N, providing the extra thrust needed for heavy press or lift operations. An adjustable stroke is chosen over a fixed SAI when a machine requires frequent commissioning fine-tuning or variable end-stops to accommodate multiple product sizes on one line.
For a direct ISO 15552 replacement, match the 200 mm bore, 170 mm stroke, 75 mm adjustment range, PT G3/4 port thread, and the -S magnet requirement. Because the 170 mm stroke is relatively short for this massive bore, side-load risks are minimal, but the 40 mm rod diameter and M36x2 thread handle high tensile stress well. If the application requires true load-holding without continuous air pressure, integrate an external rod lock or specify the BSAI clamp-lock series, as the SAIJ adjuster only sets the travel endpoint.
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 SAIJ200AX170-75S FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides a push force of 15708N and a pull force of 15080N. At 0.9 MPa, the push force reaches 28274N.
The rear adjuster screw acts as a mechanical stop that can shorten the 170 mm nominal stroke by up to 75 mm, providing a usable travel window of 95-170 mm. It sets the end position but does not lock the load without live air pressure.
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