Airtac SAIJ80 Adjustable Cylinder SAIJ80AX140-40S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX140-40S 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 SAIJ80AX140-40S
The AirTAC SAIJ80X140-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down to a 100-140 mm window. The barrel is extruded aluminum with sensor grooves on both sides, designed to cleanly host position feedback.
This configuration includes a SUS420J2 stainless steel rod for superior corrosion resistance and a PT tapered port thread for a metal-to-metal seal. The integrated magnet (-S) supports AirTAC CMSE reed and DMSE solid-state sensors. Remember that the rear adjuster functions strictly as a travel stop to dial in end positions without swapping cylinders, not as a locking device.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX140-40S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX140-40S |
|---|---|
| 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 SAIJ80AX140-40S
| 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 SAIJ80AX140-40S Is Used
Machine Changeovers
Dial in the 100-140 mm travel window during product format changes to set new end positions instantly without swapping the actuator.
Variable Diverters
Adjust the retract stop on the fly to handle different package sizes on a sorting line, fine-tuning the diverting stroke.
Press Tuning
Trim the stroke back by up to 40 mm to set precise contact depth for assembly operations without adding external mechanical stops.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX140-40S the Right Cylinder?
The 40 mm adjustment range is ideal for product-size changeovers, letting operators set variable end-stops on the fly instead of physically bolting on external stops. For holding loads without live air pressure, select a SAIL or BSAI cylinder, as the SAIJ adjuster and air cushions do not lock the load.
This unit is dimensionally interchangeable with ISO 15552 cylinders. To match this exact SKU, specify: 80 mm bore, 140 mm stroke, 40 mm adjustment, PT port thread, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting, and a -S magnet. Because the 140 mm stroke is relatively short, side-load risks are minimal, but long unsupported strokes still 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 SAIJ80AX140-40S FAQ
The rear external stopper screw lets you shorten the nominal 140 mm stroke by up to 40 mm, creating a usable travel window of 100 to 140 mm. This allows precise end-position tuning at commissioning without replacing the cylinder.
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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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