Airtac SAIJ80 Adjustable Cylinder SAIJ80AX45-40
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX45-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 45mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke45 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX45-40
The AirTAC SAIJ80X45-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to dial back the nominal 45 mm travel by up to 40 mm. This creates a highly versatile 5 to 45 mm usable stroke window, letting you fine-tune the retract end-position during commissioning without swapping out the unit. It delivers a robust 2513 N of push force at 0.5 MPa, making it ideal for moderate to heavy duty cycles.
This specific configuration uses a SUS420J2 stainless steel rod for superior corrosion resistance compared to standard carbon steel. It features PT tapered port threads (G3/8) and lacks a magnet, meaning it is ready for mechanical adjustment rather than electronic position sensing. The extruded aluminum barrel includes sensor grooves on both sides should you later need to add switches, while the rear adjuster functions strictly as a travel stop to set deceleration and end-position, not as a lock to hold the load without live air.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX45-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX45-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 45 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80AX45-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×45 | 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 SAIJ80AX45-40 Is Used
Product Changeover
Dial in the exact end-position for different product sizes on a packaging line using the 5 to 45 mm travel window without changing the cylinder.
Clamping Force Setup
Utilize the 2513 N of push force at 0.5 MPa to clamp parts securely while fine-tuning the retract distance during machine commissioning.
Variable End Stops
Adjust the rear stopper screw to set precise deceleration points and end-positions without adding external mechanical stops to the fixture.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX45-40 the Right Cylinder?
Choose this SAIJ80X45-40 when your machine setup requires precise variable end-stops within a short travel window. The 40 mm adjustment range on a 45 mm stroke is perfect for product-size changeovers on a line. If your application needs less force, stepping down to an adjacent 63 mm bore yields 1559 N of push force at 0.5 MPa. Because the stroke is under 300 mm, side-load stress on the 25 mm rod is minimal, though external guides are still recommended for heavy lateral loads. Remember that the rear adjuster only sets the travel end; for load-holding without live air pressure, you must use an external rod lock or pilot-operated check valve.
When matching this for an ISO 15552 replacement, verify the 80 mm bore, 45 mm nominal stroke, 40 mm adjustment range, G3/8 PT ports, and the absence of a magnet. The SAIJ mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options found on other series.
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 SAIJ80AX45-40 FAQ
At an operating pressure of 0.5 MPa, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At 0.9 MPa, the push force increases to 4523 N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the nominal 45 mm stroke by up to 40 mm, providing a usable travel window of 5 to 45 mm. It sets the end-position but does not lock the load without live air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ80 Adjustable Cylinder SAIJ80AX45-40
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.