Airtac SAIJ160 Adjustable Cylinder SAIJ160BX85-50S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX85-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 85mm 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.
- BoreØ160 mm
- Stroke85 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX85-50S
The AirTAC SAIJ160X85-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering robust performance for heavy-duty pneumatics. By integrating a 50mm adjustment mechanism, this model provides a usable travel window of 35-85mm, allowing precise end-position tuning without swapping components. It delivers a substantial 14074N push force at 0.7MPa, making it suitable for high-load operations.
This specific configuration features a SUS304 stainless steel piston rod for superior corrosion resistance and a PT tapered port thread for reliable sealing. The extruded aluminum barrel includes sensor grooves on both sides, and because this unit includes a magnet (-S), it is fully compatible with AirTAC CMSE reed and DMSE electronic solid-state sensors for precise position feedback.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX85-50S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX85-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 85 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 (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ160 Adjustable Cylinder SAIJ160BX85-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 160 | Bore size in mm. |
| ×85 | 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 SAIJ160 Adjustable Cylinder SAIJ160BX85-50S Is Used
Heavy-Duty Press Tuning
Dial in the exact 35-85mm pressing depth during machine setup or product changeover without adding external mechanical stops.
Variable Position Clamping
Secure large workpieces by adjusting the retract stroke to accommodate different material thicknesses on the same fixture.
Automated Assembly Stops
Provide a precise, repeatable end-stop for heavy actuators, easily modified via the rear screw as assembly requirements evolve.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX85-50S the Right Cylinder?
Choose this 160mm bore cylinder when an application requires substantial force—such as the 10053N push force at 0.5MPa—combined with on-the-fly stroke customization. If your process demands less thrust, stepping down to a 125mm bore yields 6136N at 0.5MPa, whereas moving up to a 200mm bore provides 15708N at 0.5MPa. The 50mm rear adjuster acts purely as a mechanical stop to fine-tune the retract end during commissioning or product changeover; it does not hold the load without live air. For true fail-safe load holding without pneumatic pressure, consider the SAIL air-released lock or BSAI clamp-lock series. When replacing an ISO 15552 cylinder, match the 160mm bore, 85mm stroke, 50mm adjustment, PT ports, and the -S magnet requirement. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ160 Adjustable Cylinder SAIJ160BX85-50S FAQ
At an operating pressure of 0.7 MPa, the SAIJ160X85-50-S generates a push force of 14074N and a pull force of 9425N. It can deliver a maximum push force of 18095N at 0.9 MPa.
The rear adjuster acts as a mechanical stop that lets you shorten the nominal 85mm stroke by up to 50mm, providing an adjustable usable travel window of 35-85mm. It only sets the travel end and does not lock or hold the load without live air pressure.
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