Airtac Adjustable Cylinder SAIJ32 SAIJ32AX850-30S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX850-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 850mm 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
- Stroke850 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX850-30S
The AirTAC SAIJ32X850-30-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 850mm stroke that can be dialed back by up to 30mm, giving you a usable travel window of 820-850mm for precise end-position tuning. It delivers 402N of push force at 0.5MPa and features a PT tapered port with a 12mm rod.
This specific configuration includes a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and a built-in magnet (-S) for position sensing. The extruded aluminum barrel includes sensor grooves on both sides, compatible with AirTAC CMSE reed and DMSE electronic solid-state switches. The rear adjuster acts purely as a mechanical stop to set the travel end and does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX850-30S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX850-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 850 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 SAIJ32AX850-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×850 | 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 SAIJ32AX850-30S Is Used
Machine Changeover
Dial in the exact 820-850mm end-stop during product size changes on a packaging line without adding external physical stops.
Commissioning Tuning
Fine-tune the retract end position at startup to perfectly align a 32mm bore actuator with a delicate pick-and-place tool.
Variable End Positioning
Adjust the effective travel window on the fly for a sorting diverter arm that handles packages of varying lengths.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX850-30S the Right Cylinder?
Choose this 32mm bore adjustable-stroke cylinder when your machine setup requires variable end-stops or product changeover flexibility without physically swapping the cylinder. It provides 402N push and 345N pull force at 0.5MPa; if your application needs more thrust, consider stepping up to the 40mm bore (628N push at 0.5MPa). Because the 850mm stroke is long relative to the 32mm bore, an external guide is strongly recommended to prevent excessive side-loading on the rod.
When replacing an ISO 15552 cylinder, match the 32mm bore, 850mm stroke, 30mm adjustment range, PT port thread, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting the FB, CA, CB, and CR brackets. Remember that the rear adjuster and air cushions only decelerate the travel end; for true load-holding without live air, select a 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 Adjustable Cylinder SAIJ32 SAIJ32AX850-30S FAQ
At 0.5MPa operating pressure, this 32mm bore cylinder provides 402N of push force and 345N of pull force. At the maximum 1.0MPa pressure, it can deliver up to 82kgf.
The external rear adjusting screw acts as a mechanical stop, allowing you to shorten the effective stroke by up to 30mm. This creates a usable travel window of 820-850mm, enabling fine end-position tuning without replacing the cylinder.
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