Airtac SAIJ80 Adjustable Cylinder SAIJ80BX145-50S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX145-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 145mm 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
- Stroke145 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 SAIJ80BX145-50S
The AirTAC SAIJ80X145-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 50 mm. This creates a usable stroke window of 95 to 145 mm, enabling precise end-position tuning at commissioning without swapping the cylinder or adding external stops.
Equipped with a SUS304 stainless steel rod (code B) and PT tapered ports, this model is built for demanding environments. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated magnet works seamlessly with AirTAC CMSE reed and DMSE solid-state sensors. It uses variable air cushions at both ends to decelerate the load, but the adjuster acts only as a travel stop, not a lock.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX145-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX145-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 145 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 SAIJ80BX145-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×145 | 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 SAIJ80BX145-50S Is Used
Machine Changeover
Dial in the exact retract distance from 95 to 145 mm during product size changes without replacing the cylinder or bolting on external stops.
End-Position Tuning
Fine-tune the final end-of-stroke position during commissioning to compensate for mechanical wear or sensor offsets in automated assembly lines.
Variable End Stops
Set precise retract limits for multi-mode machinery where the actuator needs to rest at different positions between cycles.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX145-50S the Right Cylinder?
Choose this 80mm bore cylinder when an application requires high thrust (up to 513 kgf at 1.0 MPa) alongside flexible end-stop positioning. The adjustable stroke is ideal for product changeovers on a line, allowing you to fine-tune the retract distance on the fly. For load-holding without live air pressure, this cylinder is not suitable as the rear adjuster is a stop, not a lock; consider an external rod lock, or AirTAC SAIL or BSAI models instead.
To match this ISO 15552 cylinder for a replacement, verify the 80mm bore, 145mm nominal stroke, 50mm adjustment range, PT port thread, and the -S magnet option. It supports a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Because the 25mm rod and M20x1.5 thread carry substantial side loads, ensure proper guiding for any overhung loads.
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 SAIJ80BX145-50S FAQ
It features a rear adjusting screw that lets you shorten the nominal 145 mm stroke by up to 50 mm, providing a usable travel window of 95 to 145 mm. The adjuster acts as a mechanical stop to set the end position, but it does not lock or hold the load without live air pressure.
At the maximum operating pressure of 1.0 MPa, it can deliver up to 513 kgf of push force.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ80 Adjustable Cylinder SAIJ80BX145-50S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.