Airtac SAIJ80 Adjustable Cylinder SAIJ80AX425-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX425-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 425mm 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
- Stroke425 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX425-75S
The AirTAC SAIJ80X425-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 2513N of push force at 0.5 MPa. Its 425mm nominal stroke can be dialed back by up to 75mm, creating a precise 350-425mm usable travel window for product changeovers. The extruded aluminum barrel features dual sensor grooves, and this -S variant includes a magnet for CMSE reed and DMSE electronic switches.
This model utilizes a SUS420J2 stainless steel rod for superior corrosion resistance and features PT tapered port threads. The 25mm rod diameter and M20x1.5 rod thread provide excellent side-load capability, though the 425mm length still requires an external guide. It supports the standard SAIJ mounting set, including Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX425-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX425-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 425 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 SAIJ80AX425-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×425 | 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 SAIJ80AX425-75S Is Used
Product Size Changeovers
Quickly fine-tune the 350-425mm travel end position on packaging lines when switching between different carton sizes.
Machine Setup Commissioning
Dial in the exact retract stop during initial machine build to avoid adding external stopper blocks.
Variable End-Stop Diverter
Adjust the stroke on the fly for diverter arms that must handle varying product lengths on a single belt.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX425-75S the Right Cylinder?
Choose this 80mm bore when a 50mm bore falls short of the required 982N push force at 0.5 MPa, or step up to a 100mm bore if you need 3927N. The adjustable 350-425mm window is perfect for dialing in end positions at commissioning without swapping cylinders. Remember that the rear adjuster is a travel stop, not a lock; for load-holding without live air, select a SAIL or BSAI cylinder. For an exact ISO 15552 replacement, match the 80mm bore, 425mm stroke, 75mm adjustment, PT ports, and -S magnet.
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 SAIJ80AX425-75S FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke by up to 75mm, providing a usable travel window of 350-425mm without changing the cylinder.
At 0.5 MPa operating pressure, it provides 2513N of push force and 2268N of pull force. At 0.7 MPa, the push force increases to 3518N.
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 SAIJ80AX425-75S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.