Airtac SAIJ80 Adjustable Cylinder SAIJ80BX850-100S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX850-100S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke850 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX850-100S
The AirTAC SAIJ80X850-100-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 850 mm stroke that can be dialed back by up to 100 mm, yielding a usable travel window of 750 to 850 mm.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for position sensing. The extruded aluminum barrel includes sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic switches. The rear adjuster acts purely as a mechanical stop to fine-tune the end position and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX850-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX850-100S |
|---|---|
| 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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80BX850-100S
| 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 SAIJ80BX850-100S Is Used
Product Size Changeovers
Quickly alter the extend stop from 850 mm down to 750 mm when running a shorter product on a packaging line, avoiding cylinder replacement.
End-Position Tuning
Dial in the exact retract end-position at machine commissioning without adding bulky external stopper blocks to the fixture.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX850-100S the Right Cylinder?
Choose this 80 mm bore cylinder when an application requires substantial thrust—stepping down to a 63 mm bore drops the 0.5 MPa push force to 1559 N, while stepping up to 100 mm yields 3927 N. The 100 mm adjustment range is ideal for product changeovers on a line, allowing you to shift the end-stop without physically swapping the cylinder or adding external stops. For load-holding without continuous air pressure, this cylinder is insufficient; the rear stop is not a lock, so you should specify an AirTAC SAIL or BSAI series instead.
At an 850 mm stroke, the 25 mm rod and M20x1.5 thread provide rigidity, but the long unsupported travel necessitates an external guide to prevent binding and excessive side-load wear. To replace this unit with another ISO 15552 cylinder, match the 80 mm bore, 850 mm base stroke, 100 mm adjustment, PT G3/8 port, and the -S magnet. It supports a reduced mounting set including 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 SAIJ80 Adjustable Cylinder SAIJ80BX850-100S FAQ
At the maximum 1.0 MPa operating pressure, the push force reaches 4523 N.
A rear screw stopper lets you mechanically shorten the 850 mm stroke by up to 100 mm, creating a 750 to 850 mm travel window. It acts as a travel stop and does not lock the load without air pressure.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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