Airtac Adjustable Cylinder SAIJ32 SAIJ32BX850-50
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX850-50 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 SAIJ32BX850-50
The AirTAC SAIJ32X850-50 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 850 mm stroke that can be dialed back by up to 50 mm, creating a precise 800-850 mm usable travel window for fine-tuning end positions during commissioning. Delivering 402 N of push force at 0.5 MPa, it utilizes a PT tapered port and a G1/8 connection.
This variant is configured with a SUS304 stainless steel rod (code B) for superior corrosion resistance, making it well-suited for environments where standard carbon steel might degrade. The extruded aluminum barrel includes sensor grooves on both sides, allowing for flexible mounting of CMSE or DMSE switches if position sensing is added later. Because the stroke is 850 mm on a 32 mm bore, external guidance is highly recommended to prevent excessive side loading on the rod.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX850-50 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX850-50 |
|---|---|
| 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 SAIJ32BX850-50
| 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 SAIJ32BX850-50 Is Used
Product Changeover
Quickly dial in the 800-850 mm travel window during line format changes, adjusting the end position by up to 50 mm without replacing the cylinder.
Long-Stroke Diverting
Handles extended push-off duties on material handling lines, using the rear stopper to fine-tune the diverting distance for varying package sizes.
Corrosive Setup Tuning
Leverages the SUS304 stainless steel rod for light manufacturing in humid or washdown environments, allowing precise mechanical end-position calibration.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX850-50 the Right Cylinder?
Choose this 32 mm bore cylinder when an application requires 402 N of push force at 0.5 MPa (or 724 N at 0.9 MPa) combined with a long, variable end-stop distance. If the project demands greater thrust, stepping up to a 40 mm bore increases the 0.5 MPa push force to 628 N. The adjustable stroke is ideal for machine setups requiring product changeovers without physically swapping cylinders or adding external mechanical stops.
For ISO 15552 dimensional interchangeability, match the 32 mm bore, 850 mm stroke, 50 mm adjustment range, PT port thread, and standard mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that the rear adjuster acts strictly as a travel stop and does not hold the load without live air pressure; for dead-air load holding, consider an AirTAC SAIL or BSAI cylinder. Furthermore, on long strokes like this 850 mm unit, an external guide rail is necessary to support the load and protect the piston rod from bending.
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 SAIJ32BX850-50 FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. If pressure is increased to 0.9 MPa, the push force reaches 724 N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective travel from the nominal 850 mm down to 800 mm. This creates an 800-850 mm setup window for fine-tuning without needing external stops.
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