Airtac SAIJ80 Adjustable Cylinder SAIJ80AX140-20
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX140-20 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 SAIJ80AX140-20
The AirTAC SAIJ80X140-20 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 120 to 140 mm, allowing you to dial back the standard 140 mm stroke by up to 20 mm during commissioning.
This unit is configured with an SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance, and utilizes PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Mounting options include the SAIJ subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR brackets.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX140-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX140-20 |
|---|---|
| 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 SAIJ80AX140-20
| 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 SAIJ80AX140-20 Is Used
Variable End-Stop Positioning
Dial in the exact 120-140 mm travel distance required for machining or pressing operations without physically remounting the actuator.
Product Changeover Systems
Quickly adapt automated lines to different package sizes by turning the rear adjuster to shorten the stroke for the new format.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX140-20 the Right Cylinder?
The adjustable stroke is ideal for machine setups requiring variable end-stops or product changeovers without swapping the entire cylinder or adding external stops. Because the rear adjuster and air cushions only decelerate the travel end, this cylinder will not hold a load without live air pressure; for true fail-safe load holding, consider the SAIL or BSAI series. When replacing an ISO 15552 cylinder, match the 80 mm bore, 140 mm stroke, 20 mm adjustment, PT G3/8 port, and appropriate mounting bracket.
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 SAIJ80AX140-20 FAQ
The maximum thrust is 513 kgf at 1.0 MPa.
The rear adjuster acts as a mechanical stop that trims the nominal 140 mm stroke by up to 20 mm, giving an effective travel window of 120 to 140 mm. It is a travel stop, not a lock, so the cylinder requires live air pressure to hold its position.
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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