Airtac SAIJ80 Adjustable Cylinder SAIJ80BX140-10S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX140-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 140mm 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
- Stroke140 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 SAIJ80BX140-10S
The AirTAC SAIJ80X140-10-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 130-140 mm, allowing you to dial back the nominal 140 mm stroke by up to 10 mm during commissioning.
This model includes a magnet for position sensing and works seamlessly with AirTAC CMSE reed and DMSE electronic solid-state switches. The extruded aluminum barrel integrates sensor grooves on both sides, and the unit supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2. The rear adjuster acts purely as a mechanical stop to fine-tune the end position and cannot hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX140-10S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX140-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 140 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 SAIJ80BX140-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×140 | 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 SAIJ80BX140-10S Is Used
Machine Setup & Changeover
Fine-tune the 130-140 mm travel window during product changeovers to set exact end-stops without physically swapping cylinders or adding external mechanical stops.
Variable End-Stop Positioning
Dial in the exact retraction point on automated machining lines, using the 10 mm rear adjuster to compensate for mechanical wear or tooling offsets.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX140-10S the Right Cylinder?
Choose this adjustable-stroke cylinder when your application requires precise end-position tuning at setup or during product changeover without swapping the physical cylinder or adding external stops. If you need less force, stepping down to a 50 mm bore yields 982 N at 0.5 MPa; if you require higher thrust, a 100 mm bore provides 3927 N. For load-holding without continuous live pressure, consider the SAIL or BSAI series, as the SAIJ adjuster is not a lock.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 140 mm stroke, 10 mm adjustment range, PT tapered port thread, and the -S magnet requirement. The 25 mm rod diameter and M20x1.5 rod thread provide excellent rigidity, though any long unsupported stroke still necessitates an external guide to prevent excessive side-loading.
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 SAIJ80BX140-10S FAQ
At 0.7 MPa, the push force increases to 3518 N. The operating speed range for this 80 mm bore is 30-800 mm/s.
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke from 140 mm down to 130 mm. It is designed for fine-tuning the end position at commissioning and does not lock or hold the load without live air pressure.
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Standard models are processed and dispatched in 3-5 business days.
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