Airtac Adjustable Cylinder SAIJ32 SAIJ32BX850-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX850-50S 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 SAIJ32BX850-50S
The AirTAC SAIJ32X850-50-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a usable travel window of 800 to 850 mm, allowing you to dial back the extend position by up to 50 mm during commissioning. In the 32 mm bore class, it delivers a push force of 402 N and a pull force of 345 N at 0.5 MPa.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. Because the 850 mm stroke is long for this bore, the 12 mm rod requires external guidance to prevent excessive side-loading. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX850-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX850-50S |
|---|---|
| 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 SAIJ32BX850-50S
| 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 SAIJ32BX850-50S Is Used
Variable Length Gauging
Dial in the exact 800 to 850 mm measurement stroke during setup to accommodate different product lengths on the fly.
Commissioning Fine-Tuning
Trim the extend position by up to 50 mm at machine startup to perfect the alignment without machining new hard stops.
Product Changeover Stops
Quickly adjust the physical end-stop position when switching the production line to a new package size.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX850-50S the Right Cylinder?
Choose this adjustable model when you need precise end-position tuning without swapping cylinders or adding external stops. If your application requires less force, stepping down is not an option below 32 mm, but stepping up to a 40 mm bore yields 628 N of push force at 0.5 MPa. Conversely, if you need load-holding without continuous air pressure, the rear stopper here is not a lock; you should evaluate the SAIL air-released lock or BSAI clamp-lock series instead.
To match this exact ISO 15552 footprint, specify a 32 mm bore, 850 mm nominal stroke, 50 mm adjustment range, PT tapered port threads, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. For an 850 mm stroke, always support the load with an external guide rail to protect the rod seals.
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 SAIJ32BX850-50S FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder generates a push force of 402 N and a pull force of 345 N. At the maximum 1.0 MPa pressure, it achieves a push force of 80 kgf.
The rear adjuster screw lets you shorten the effective travel from the nominal 850 mm down to 800 mm. This creates a 50 mm tuning window for setting the exact end position without changing the cylinder or adding external stops.
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