Airtac SAIJ80 Adjustable Cylinder SAIJ80AX425-10S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX425-10S 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 SAIJ80AX425-10S
The AirTAC SAIJ80X425-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 415 to 425 mm. It delivers a robust 2513 N push force at 0.5 MPa, making it suitable for heavy-duty positioning tasks. The extruded aluminum barrel features sensor grooves on both sides, and the included magnet (-S) supports precise tracking via CMSE reed or DMSE electronic solid-state switches.
This variant utilizes a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and features PT tapered port threads. The rear adjustment screw allows mechanics to fine-tune the retract end position during commissioning without adding external stops. Note that the adjuster acts only as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX425-10S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX425-10S |
|---|---|
| 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 SAIJ80AX425-10S
| 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 SAIJ80AX425-10S Is Used
Machine Commissioning
Dial in the exact retract position within the 415-425 mm window during initial setup to align heavy fixtures without machining hard stops.
Product Changeover
Quickly adjust the end-of-stroke position by up to 10 mm on packaging lines when handling slightly different product sizes.
Heavy Positioning
Leverage the 2513 N push force at 0.5 MPa to move and position substantial loads while fine-tuning the final landing point.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX425-10S the Right Cylinder?
Select this 80 mm bore cylinder when an application requires substantial thrust, stepping up from the 50 mm bore that provides 982 N push force at 0.5 MPa. The adjustable 10 mm end-stop is ideal for machine setups requiring minor positional corrections at commissioning, offering flexibility that a fixed-stroke SAI cylinder cannot provide. For load-holding without continuous air pressure, an external rod lock or pilot-operated check valve is necessary, as the SAIJ adjuster is not a locking mechanism.
Because this model features a 425 mm stroke, the 25 mm rod diameter should be paired with an external guide to prevent excessive side-loading and premature seal wear. It is dimensionally interchangeable per ISO 15552 mounting interfaces and uses a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2. Configuration specifics include PT ports, SUS420J2 rod material, and a magnet for CMSE or DMSE sensors.
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 SAIJ80AX425-10S FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides a push force of 2513 N and a pull force of 2268 N. At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster screw allows you to shorten the effective stroke by up to 10 mm, creating a usable travel window of 415 to 425 mm. It functions as a mechanical stop for end-position tuning and is not a lock.
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