Airtac SAIJ160 Adjustable Cylinder SAIJ160BX85-40S
The AirTAC Airtac SAIJ160 Adjustable Cylinder SAIJ160BX85-40S 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 SAIJ160BX85-40S
The AirTAC SAIJ160X85-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 85 mm travel by up to 40 mm. This creates a precise 45-85 mm usable stroke window, ideal for fine-tuning end positions during commissioning without swapping hardware. Built with a SUS304 stainless steel rod, it handles heavy loads with a push force of 14074 N at 0.7 MPa.
This variant includes a magnet for position sensing and uses PT tapered ports sized at G3/4. The extruded aluminum barrel features sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic solid-state switches. Standard adjustable air cushions at both ends manage deceleration, while the rear stopper acts purely as a travel limit rather than a load-holding lock.
Airtac SAIJ160 Adjustable Cylinder SAIJ160BX85-40S Technical Specifications
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX85-40S |
|---|---|
| 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 SAIJ160BX85-40S
| 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 SAIJ160BX85-40S Is Used
Press Stroke Calibration
Dial in the exact 45 to 85 mm end position during machine commissioning to accommodate varying material thicknesses without adding external hard stops.
Product Size Changeover
Quickly adjust the retract end-stop on a packaging line to handle different carton sizes, utilizing the 40 mm trim range for rapid format changes.
Heavy Assembly Clamping
Leverage the 14074 N push force at 0.7 MPa to secure heavy components during assembly, using the fine stroke adjustment to prevent over-travel and part damage.
Is the Airtac SAIJ160 Adjustable Cylinder SAIJ160BX85-40S the Right Cylinder?
Choose this 160 mm bore when an 80 mm cylinder's 3518 N push force at 0.7 MPa is insufficient, but a 200 mm bore is excessive. The adjustable 45-85 mm travel window is perfect for machine setups requiring variable end stops or product changeovers. For exact ISO 15552 replacement matching, specify the 160 mm bore, 85 mm stroke, 40 mm adjustment, PT G3/4 ports, SUS304 rod, and the -S magnet.
Because the stroke is under 300 mm, side-load risks are lower than with long-stroke actuators, though the robust 40 mm rod and M36x2 thread still handle significant offset loads. Remember that the rear adjuster only sets the travel end; it does not hold the load without live air. For true load-holding without pneumatic pressure, consider an AirTAC SAIL or BSAI cylinder instead.
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 SAIJ160BX85-40S FAQ
At an operating pressure of 0.7 MPa, this 160 mm bore cylinder provides a push force of 14074 N and a pull force of 9425 N. The maximum push force reaches 18095 N at 0.9 MPa.
The rear adjuster screw allows you to shorten the nominal 85 mm stroke by up to 40 mm, creating a usable travel window of 45 to 85 mm. This stopper sets the end position but does not lock the load without continuous air pressure.
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