Airtac SAIJ160 Adjustable Cylinder SAIJ160AX85-20S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160AX85-20S 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 SAIJ160AX85-20S
The AirTAC SAIJ160X85-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 85 mm stroke by up to 20 mm. This yields a precise 65-85 mm usable travel window, ideal for fine-tuning end positions during commissioning without swapping out hardware. It delivers substantial thrust, pushing 14074 N at 0.7 MPa.
This unit features a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel integrates sensor grooves on both sides, and the PT tapered ports ensure tight pneumatic connections for this high-force actuator.
Airtac SAIJ160 Adjustable Cylinder SAIJ160AX85-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160AX85-20S |
|---|---|
| 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 SAIJ160AX85-20S
| 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 SAIJ160AX85-20S Is Used
Product Changeovers
Dial in the 65-85 mm travel window during packaging line format changes to accommodate different carton depths without re-mounting the actuator.
Press Fit Tuning
Precisely set the insertion depth of heavy components by adjusting the rear stopper at commissioning, avoiding over-travel on high-force press tasks.
Machine Setup
Eliminate the need for external stop blocks during initial machine assembly by using the built-in 20 mm stroke adjustment to find the exact operational endpoint.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160AX85-20S the Right Cylinder?
Selecting this 160 mm bore actuator provides 10053 N of push force at 0.5 MPa; if your application requires less force, stepping down to a 125 mm bore yields 6136 N at the same pressure. Choose the SAIJ adjustable-stroke design over a fixed SAI when your machine setup demands a variable end-stop or product-size changeovers. The rear adjuster acts strictly as a travel stop to set deceleration, not a lock. For load-holding without live air pressure, integrate an external rod lock or pilot-operated check valve, or specify an AirTAC SAIL or BSAI cylinder.
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 SAIJ160AX85-20S FAQ
The rear adjusting screw acts as a mechanical stopper, allowing you to shorten the 85 mm nominal stroke by up to 20 mm. This provides a usable travel window of 65-85 mm, which can be fine-tuned during commissioning without adding external stops.
At an operating pressure of 0.7 MPa, the SAIJ160X85-20-S provides a push force of 14074 N and a pull force of 9425 N. It can deliver a maximum push force of 18095 N at 0.9 MPa.
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