Airtac SAIJ80 Adjustable Cylinder SAIJ80BX145-50
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX145-50 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 SAIJ80BX145-50
The AirTAC SAIJ80X145-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 95-145 mm usable travel window. This variant uses a SUS304 stainless steel rod for superior corrosion resistance and features PT tapered ports for a tight, reliable seal.
The built-in rear stopper allows you to fine-tune end positions at commissioning without adding external stops. It uses a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB and rear pivot options. The adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX145-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX145-50 |
|---|---|
| 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 SAIJ80BX145-50
| 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 SAIJ80BX145-50 Is Used
Product Size Changeovers
Dial the travel back by up to 50 mm instantly on the line when switching to a shorter product format, avoiding cylinder swaps.
Commissioning Fine-Tune
Precisely set the retract end-position during machine setup to absorb mechanical tolerances without adding external hard stops.
Variable End Stops
Use the 95-145 mm adjustable window to tweak the retract distance for multi-format tooling on a single actuator.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX145-50 the Right Cylinder?
Choose this 80 mm bore when 50 mm bore thrust (982 N at 0.5 MPa) is insufficient but you want to avoid stepping up to a 100 mm body. The 50 mm adjustment range is ideal for machines processing varying product sizes, letting you dial in the exact end-stop on the fly. Because it lacks a true lock, use an external rod lock or SAIL cylinder if the mechanism must hold position safely without continuous air supply.
For a direct ISO 15552 replacement, match the 80 mm bore, 145 mm stroke, 50 mm adjustment, PT ports, and SUS304 rod. As with all 80 mm actuators, operating speed spans 30-800 mm/s. While the 25 mm rod and M20x1.5 thread handle high side loads well, any stroke over 300 mm would require an external guide.
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 SAIJ80BX145-50 FAQ
It reaches a maximum of 513 kgf at 1.0 MPa.
The rear adjuster screw lets you shorten the 145 mm nominal stroke by up to 50 mm, yielding a 95-145 mm travel window. This stopper sets the end position but does not lock the load without live air.
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.
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