Airtac SAIJ160 Adjustable Cylinder SAIJ160BX85-20S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX85-20S 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 SAIJ160BX85-20S
The AirTAC SAIJ160X85-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel window from 65 to 85 mm without adding external stops. It delivers a robust 14074N push force at 0.7 MPa, making it well-suited for heavy-duty positioning tasks.
This variant integrates a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads for a secure mechanical seal. It includes a magnet for CMSE reed and DMSE electronic sensors, which seat directly into the dual-side barrel grooves.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX85-20S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX85-20S |
|---|---|
| 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 SAIJ160BX85-20S
| 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 SAIJ160BX85-20S Is Used
Heavy Press Tuning
Dial in the exact 65-85 mm travel during machine setup to accommodate varying material thicknesses in heavy pressing operations.
Product Changeover
Quickly adjust the retract end-position on automated lines when switching between different product sizes without changing the cylinder.
Corrosive Assembly
Leverage the SUS304 stainless steel rod for high-force actuation in environments where moisture or corrosive elements are present.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX85-20S the Right Cylinder?
Choose this 160 mm bore when you need high thrust (14074N at 0.7 MPa) that exceeds the 100 mm bore class (5497N), but with a shorter adjustable travel. The rear adjuster allows precise end-position tuning during commissioning or product changeover, which is far more efficient than swapping out a fixed-stroke SAI cylinder. Remember that the adjuster acts only as a travel stop; it does not hold the load without live air. For pneumatic load-holding, consider the SAIL or BSAI series.
When replacing an ISO 15552 cylinder, match the 160 mm bore, 85 mm stroke, 20 mm adjustment range, PT G3/4 port, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options.
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 SAIJ160BX85-20S FAQ
At 0.7 MPa operating pressure, this 160 mm bore cylinder provides 14074N of push force and 9425N of pull force. It reaches a maximum of 18095N push force at 0.9 MPa.
The rear adjusting screw acts as a mechanical stopper, allowing you to shorten the nominal 85 mm stroke by up to 20 mm. This creates a usable travel window of 65 to 85 mm for precise end-position tuning at commissioning.
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