Airtac SAIJ80 Adjustable Cylinder SAIJ80AX850-100S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX850-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 850mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke850 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX850-100S
The AirTAC SAIJ80X850-100-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 750 to 850 mm. Delivering 2513 N of pull force at 0.5 MPa, it is built to handle substantial pneumatic loads with precision. The extruded aluminum barrel features sensor grooves on both sides, and because this unit includes the -S magnet, it interfaces directly with AirTAC CMSE reed and DMSE electronic solid-state switches for exact position detection.
This model utilizes a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance and features PT tapered port threads. The rear mechanical stopper allows you to fine-tune the retract end position during commissioning without adding external stops. It is important to note that this adjuster acts solely as a travel stop and does not lock the load; for dead-load holding without live air pressure, an external rod lock or a SAIL/BSAI variant is required.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX850-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX850-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 850 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max stroke | Up to 1500 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80AX850-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | 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 SAIJ80 Adjustable Cylinder SAIJ80AX850-100S Is Used
Machine Changeover
Dial in the 750-850 mm travel window during product family swaps to set new end positions rapidly without changing the cylinder.
Variable End Stops
Ideal for diverter arms on conveyors where the retract position must be tweaked mechanically to handle varying package depths.
Assembly Presses
Provides 2513 N pull force at 0.5 MPa for clamping parts, with the rear screw allowing precise tuning of the resting position.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX850-100S the Right Cylinder?
Selecting this 80 mm bore cylinder makes sense when your application requires the 2513 N pull force at 0.5 MPa, stepping up from a 63 mm bore that provides 1402 N. The 100 mm adjustment range is ideal for machinery requiring product-size changeovers, letting operators dial in the exact end-stop mechanically rather than swapping components. If your force requirements are lower, a 63 mm bore offers a lighter footprint, but the 80 mm bore provides a larger 25 mm rod and M20x1.5 rod thread that better withstands side loading.
Because this SKU features an 850 mm stroke, the extended unsupported rod length means an external guide must be used to prevent binding and premature seal wear. To achieve a true ISO 15552 replacement match, verify the 80 mm bore, 850 mm stroke, 100 mm adjustment, PT ports, and the -S magnet. Mounting options are limited to the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets.
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 SAIJ80 Adjustable Cylinder SAIJ80AX850-100S FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder generates 2513 N of push force and 2268 N of pull force. At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke from the nominal 850 mm down to 750 mm. It only sets the travel end and does not hold the load without live air pressure.
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