Airtac Adjustable Cylinder SAIJ32 SAIJ32AX850-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX850-40S 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 SAIJ32AX850-40S
The AirTAC SAIJ32X850-40-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 850 mm stroke with an adjustable travel window of 810 to 850 mm, allowing you to dial back the end position by up to 40 mm during commissioning. It delivers 402 N of push force and 345 N of pull force at 0.5 MPa. The extruded aluminum barrel includes sensor grooves on both sides for straightforward mounting of position switches.
This SKU is built with a SUS420J2 stainless steel rod for enhanced corrosion resistance and includes a magnet for use with AirTAC CMSE reed and DMSE electronic sensors. It uses PT tapered port threads and operates at speeds from 30 to 800 mm/s. The rear adjuster acts purely as a mechanical stop to set the travel end; it does not lock the load. For load-holding without live air pressure, consider the SAIL or BSAI series.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX850-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX850-40S |
|---|---|
| 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 SAIJ32AX850-40S
| 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 SAIJ32AX850-40S Is Used
Machine Setup Tuning
Fine-tune the 810-850 mm travel end during initial commissioning to perfectly align a push-off plate without machining external stoppers.
Product Size Changeover
Quickly adjust the retract position by up to 40 mm on a packaging line to accommodate different carton lengths on the fly.
Long-Stroke Diverter
Precisely set the extended stop position for a long-stroke diverter arm, using the rear screw to trim the exact reach distance.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX850-40S the Right Cylinder?
Choose this 32 mm bore when your application requires precise end-position tuning without swapping cylinders or adding external stops on the machine frame. The 40 mm adjustment window is ideal for accommodating slight variations in product size or fixture alignment during changeover. If your setup needs higher force, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa.
Because the 850 mm stroke is relatively long for a 32 mm rod, it is highly recommended to use an external guide to prevent excessive side-load wear on the rod seals. For an ISO 15552 replacement, match the 32 mm bore, 850 mm stroke, 40 mm adjustment, PT ports, SUS420J2 rod, and the -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
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 SAIJ32AX850-40S FAQ
At a 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. It can reach up to 724 N of push force at 0.9 MPa.
The rear adjuster screw lets you shorten the effective travel from the nominal 850 mm down to 810 mm. It acts as a mechanical stop to fine-tune the end position at commissioning, but it does not hold the load without live air pressure.
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