Airtac SAIJ80 Adjustable Cylinder SAIJ80BX85-10S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX85-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 85mm 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
- Stroke85 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX85-10S
The AirTAC SAIJ80X85-10-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 2513N push force at 0.5 MPa and features an 85mm nominal stroke that can be fine-tuned backward by up to 10mm, yielding a precise 75-85mm usable travel window. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This specific configuration utilizes a SUS304 stainless steel rod for superior corrosion resistance and includes an integrated magnet (-S) compatible with AirTAC CMSE reed and DMSE electronic sensors. The rear adjuster acts purely as a mechanical stop to dial in the retract end-position during commissioning without adding external stops; it does not lock the load, meaning live air pressure is required to hold position.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX85-10S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX85-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 85 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 SAIJ80BX85-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×85 | 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 SAIJ80BX85-10S Is Used
Machine Changeover
Dial in the 75-85mm travel window during product size transitions to set exact retract positions without machining new hard stops.
End-Position Tuning
Fine-tune the rear stop during commissioning to compensate for mechanical tolerance buildup in multi-axis assembly stations.
Variable End Stops
Adjust the retract depth on the fly for clamping or pressing tasks that require slight positional shifts between batches.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX85-10S the Right Cylinder?
Choose this 80mm bore when an application demands higher thrust than a 63mm cylinder (1559N at 0.5 MPa) but does not require the full output of a 100mm unit (3927N). The adjustable 75-85mm travel window is ideal for product changeovers or setup refinement, allowing operators to dial in the exact end-stop on the machine without physically swapping the cylinder for a different fixed-stroke SAI variant.
When replacing an ISO 15552 cylinder, match the 80mm bore, 85mm stroke, 10mm adjustment range, PT tapered port threads, and the -S magnet requirement. The SAIJ mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options. Because the stroke is under 300mm, side-load stress is manageable, though the robust 25mm rod and M20x1.5 thread handle standard lateral forces effectively.
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 SAIJ80BX85-10S FAQ
At an operating pressure of 0.5 MPa, this 80mm bore cylinder generates a push force of 2513N and a pull force of 2268N. At 0.9 MPa, the push force increases to 4523N.
The rear adjusting screw allows you to shorten the 85mm nominal stroke by up to 10mm, creating a 75-85mm usable travel window. The adjuster functions as a mechanical stop for end-position tuning and is not a locking mechanism, so live air pressure is needed to hold the load.
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