Airtac Adjustable Cylinder SAIJ32 SAIJ32AX85-50
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX85-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 85mm stroke, G1/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ32 mm
- Stroke85 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX85-50
The AirTAC SAIJ32X85-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel. With a nominal 85 mm stroke and a 50 mm adjustment range, it provides a usable 35-85 mm travel window for exact end-position setting at commissioning. It delivers 402 N of push force at 0.5 MPa and uses a G1/8 port.
This variant features a SUS420J2 stainless steel rod for improved corrosion resistance and includes adjustable air cushions at both ends. The rear adjuster acts purely as a mechanical stop to set the retract position; it does not hold the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX85-50 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX85-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 85 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 27 mm |
| Max stroke | Up to 1000 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac Adjustable Cylinder SAIJ32 SAIJ32AX85-50
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | 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 Adjustable Cylinder SAIJ32 SAIJ32AX85-50 Is Used
Machine Setup Tuning
Dial in the exact 35 to 85 mm retract position during commissioning without replacing hardware.
Product Changeover
Quickly adjust the end-stop to accommodate varying part sizes on the same assembly line.
Variable End-Stopping
Use the rear mechanical stopper to fine-tune the travel limit for delicate positioning tasks.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX85-50 the Right Cylinder?
Choose this 32 mm bore when you need precise variable end-stops during machine setup or product changeovers, avoiding the need to swap cylinders or add external stops. If your application requires higher force, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. Because the 85 mm stroke is under 300 mm, side-load stress is minimal, though the 12 mm rod and M10x1.25 thread still require standard alignment.
This SAIJ model uses a PT tapered port thread and lacks a magnet, meaning it will not work with CMSE or DMSE sensors out of the box. It supports the SAIJ mounting subset (Basic, FA, LB, TC, FTC, TCM1, TCM2) and is dimensionally interchangeable with ISO 15552 cylinders, omitting FB, CA, CB, and CR mounts.
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 Adjustable Cylinder SAIJ32 SAIJ32AX85-50 FAQ
At an operating pressure of 0.5 MPa, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. It can reach a maximum of 82 kgf at 1.0 MPa.
The rear adjuster lets you shorten the nominal 85 mm stroke by up to 50 mm, creating a usable travel window of 35 to 85 mm. This mechanical stop only sets the end position and requires live air to hold the load.
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