Airtac SAIJ80 Adjustable Cylinder SAIJ80AX140-75S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX140-75S 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 SAIJ80AX140-75S
The AirTAC SAIJ80X140-75-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 140 mm travel that can be dialed back by up to 75 mm, creating a highly flexible 65-140 mm usable stroke window for precise end-position tuning during commissioning. The rear adjuster acts strictly as a travel stop to set deceleration alongside the dual air cushions, not as a load-holding brake. For applications requiring position holding without live air pressure, a SAIL or BSAI series cylinder is required.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX140-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX140-75S |
|---|---|
| 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 SAIJ80AX140-75S
| 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 SAIJ80AX140-75S Is Used
Variable End-Stop Tuning
Dial in the exact 65 to 140 mm retract position during machine setup to accommodate new product dimensions without machining new hard stops.
Product Changeover Systems
Rapidly adjust the effective stroke on a packaging line to handle different carton sizes, leveraging the 75 mm adjustment range on the fly.
Controlled Deceleration Setup
Fine-tune the end-of-stroke position to work in harmony with the 36 mm air cushions, optimizing stopping forces for delicate payloads.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX140-75S the Right Cylinder?
Choose this 80 mm bore when you need substantial thrust—stepping up from a 63 mm bore increases push force at 0.5 MPa from 1559 N to 2513 N. If your application requires less force, dropping to a 63 mm bore saves space and air consumption. An adjustable stroke is highly beneficial here because the 75 mm trim range allows massive flexibility for product-size changeovers on a single machine without replacing the cylinder.\n\nAs an ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 cylinders. When ordering, specify the 80 mm bore, 140 mm stroke, 75 mm adjustment, PT tapered port threads, and the -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Since the 140 mm stroke is under the 300 mm threshold, side-load stress is minimal, but an external guide is still recommended for heavy radial 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 SAIJ80AX140-75S FAQ
At the maximum 1.0 MPa pressure, it delivers 513 kgf.
The rear adjuster allows you to shorten the nominal 140 mm stroke by up to 75 mm, providing a usable travel window of 65 to 140 mm. The adjuster acts as a mechanical stop to set the end position and does not hold the load without live air pressure.
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Genuine AirTAC parts produced by AirTAC factory.
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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