Airtac SAIJ80 Adjustable Cylinder SAIJ80AX140-30
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX140-30 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 SAIJ80AX140-30
Its extruded aluminum barrel features sensor grooves on both sides, and the rod is constructed from SUS420J2 stainless steel (code A) for enhanced durability against moisture. Threaded ports are PT (tapered).
With a nominal 140mm stroke and a 30mm adjustment range, this SKU provides a usable travel window of 110-140mm. This allows precise end-position tuning at commissioning without swapping the cylinder or adding external stops. The rear screw acts purely as a travel stop and works alongside the standard 36mm air cushions to decelerate the load, but it does not hold the position without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX140-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX140-30 |
|---|---|
| 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 SAIJ80AX140-30
| 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 SAIJ80AX140-30 Is Used
Product Changeover
Quickly reconfigure the retract distance from 140mm down to 110mm when adapting machinery to run different product lengths on the same line.
End-Position Tuning
Fine-tune the exact stopping point during machine commissioning using the rear screw, avoiding the need to fabricate external mechanical stops.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX140-30 the Right Cylinder?
Choose this 80mm bore when an application requires higher thrust than a 63mm cylinder (1559N at 0.5 MPa) but less than a 100mm bore (3927N). The adjustable 110-140mm window is ideal for product-size changeovers on a line, allowing operators to dial in the exact retract distance on the fly rather than machining custom fixed-stroke SAI units. The 25mm rod and M20x1.5 thread provide robust resistance to side loads, though any stroke exceeding 300mm would still necessitate an external guide.
To replace an ISO 15552 cylinder, match the 80mm bore, 140mm nominal stroke, PT ports, and the specific 30mm adjustment code. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Because this configuration lacks a magnet (-S), it cannot host CMSE or DMSE sensors. If the machine requires true load-holding without continuous air pressure, a plain SAIJ is insufficient and a SAIL or BSAI locking cylinder must be specified instead.
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 SAIJ80AX140-30 FAQ
At 0.7 MPa, the push force increases to 3518N.
The rear adjuster screw allows you to shorten the effective travel from its nominal 140mm down to 110mm, creating a 110-140mm usable window. It functions as a mechanical stop to set the end position and does not lock the load without live air.
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1-Year Warranty
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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Most inquiries answered within 7-8 hours.
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