Description
I. Product Overview
ABB 3HS0765-02 is a Japan-originated air bearing high-speed air motor specially used for ABB painting robots, serving as the core driving component of the atomizer at the end of painting robots. Driven by high-pressure compressed air to form an air film suspension bearing, it drives the atomizing disc to rotate at ultra-high speed to achieve uniform paint atomization and high-precision electrostatic spraying operation. Adopting a frictionless air bearing structure, it features ultra-low vibration, stable rotating speed, solvent and corrosion resistance, and long maintenance-free service life. Widely applied in automobile, home appliance, aerospace and other automated coating production lines, it is an original core spare part for robot overhaul, faulty atomization unit replacement and production line technical renovation, and can be compatibly replaced with the model 3HS0765-01.
II. Hardware Structure and Composition
1. Air Bearing Suspension Driving Unit
Adopts precision porous aerostatic air bearing structure. High-pressure compressed air forms a uniform air film in the bearing gap, realizing non-contact support between rotor and stator, eliminating mechanical friction and wear fundamentally. It effectively suppresses operating vibration, keeps the rotating speed constant, avoids process defects such as uneven coating thickness and electrostatic sparking caused by speed drift, and greatly reduces component loss and operating noise.
2. Pneumatic Turbine High-speed Rotor Unit
The high-precision dynamically balanced aviation aluminum turbine rotor is driven by compressed air impact, with stable torque output to adapt to the atomization load of water-based paint, solvent-based paint and high-solid coatings. The standard output shaft ensures high coaxial installation with all ABB electrostatic atomizers, avoiding high-speed vibration caused by installation deviation.
3. Multi-channel Precise Pneumatic Distribution Valve Unit
The integrated independent air channels are respectively used for bearing suspension air supply, turbine driving air supply and atomizer purge air supply. Equipped with solvent-resistant sealing valves, it prevents air channel cross-pressure and leakage, avoids bearing instability and speed abnormality, and realizes independent pressure stabilization control of each air circuit.
4. Integrated High-strength Alloy Housing Protection Unit
The hard anodized aluminum integrated shell is resistant to acid, alkali and organic solvent corrosion, adapting to harsh workshop environments of paint splashing, high humidity and dust. Reserved standard positioning mounting holes ensure reliable locking on the robot wrist and prevent displacement and loosening during repeated reciprocating movement of the robot.
5. Standard Pneumatic Quick-connect Interface Unit
Equipped with industrial compressed air quick connectors with clear channel identification, built-in air intake buffer filter structure to suppress pipeline pressure impact, prevent instantaneous air pressure surge from damaging the air film balance, and realize fast and standardized on-site air circuit docking and debugging.
III. Technical Specifications
(1) Pneumatic & Electrical Parameters
- Driving Medium: Clean, dry and oil-free compressed air, supply pressure 0.4～0.7MPa
- Rated Max Speed: 100000rpm, closed-loop adjustable, speed control accuracy ±0.1%
- Bearing Suspension Air Pressure: 0.35～0.55MPa, independent pressure stabilizing supply
- Rated Air Consumption: 0.35～0.55m³/min under standard working conditions
- Torque Output: Stable low-torque output for high-speed light-load atomization applications
- Air Circuit Protection Grade: IP54, solvent and moisture resistant sealing
- Control Mode: External proportional valve closed-loop speed regulation, fully compatible with ABB robot painting control system
(2) Environmental Parameters
- Operating Temperature: 5℃～+45℃; Storage & Transportation Temperature: -20℃～+60℃
- Relative Humidity: 10%～85%RH, non-condensing, suitable for high-humidity solvent volatilization coating workshops
- Vibration Resistance: Compliant with industrial robot reciprocating vibration standards
- Ingress Protection: IP54, dust, paint splash and solvent splash resistant
(3) Mechanical Parameters
- Mounting Mode: Flange positioning locking installation on robot wrist
- Net Weight: 0.853kg
- Housing Material: Hard anodized aviation aluminum alloy, anti-corrosion and anti-deformation
- Shaft Specification: High-precision coaxial customized shaft for ABB atomizer matching
- Factory Process: Ultra-high precision dynamic balance calibration and full air circuit leak test
IV. Product Functions and Features
1. Contactless Air Bearing Design, Ultra-long Service Life & Low Maintenance
No rolling friction components inside, the rotor runs suspended by air film with zero wear, realizing tens of thousands of hours of continuous stable operation without regular lubrication maintenance. It eliminates common faults such as bearing seizure and speed attenuation of traditional mechanical bearings, greatly reducing production line downtime maintenance frequency.
2. Ultra-high Stable Rotating Speed to Guarantee Consistent Coating Process
100000rpm high and stable speed output ensures uniform paint atomization, effectively reducing coating defects such as color difference, sagging and pinholes. It supports segmented speed adjustment via robot programs to match different process requirements of primer, basecoat and clearcoat.
3. Independent Multi-air-circuit Design with High Operational Fault Tolerance
The suspension, driving and purge air circuits are mutually isolated. Single-channel pressure fluctuation will not cause bearing seizure. The built-in one-way pressure stabilizing structure resists instantaneous pipeline pressure drop, maintaining stable air film and avoiding permanent collision damage between rotor and stator.
4. Explosion-proof Corrosion-resistant Pneumatic Structure for Hazardous Coating Workshops
Fully pneumatic drive without built-in electrical components complies with explosion safety standards of coating hazardous areas to avoid solvent explosion risks caused by electric sparks. Fluorine rubber sealing and anodized shell resist various paint thinner corrosion for long-term harsh environment operation.
5. Original Standard Interface, Plug-and-play High Compatibility
Fully matched with the mechanical size, air circuit definition and control logic of all ABB painting robots. No program modification is required after replacement, only air pressure calibration and speed parameter setting are needed for put-into-operation. It can be directly replaced with model 3HS0765-01 for flexible spare part management.
V. Application Scenarios
- Driving unit supporting and faulty motor replacement for ABB painting robots in automotive whole vehicle and auto parts electrostatic coating production lines.
- High-precision paint atomization equipment for explosion-proof coating workshops of home appliances, 3C products and aerospace components.
- Environmental-friendly coating processes such as water-based paint, high-solid paint and UV paint requiring precise atomization control.
- Annual overhaul and batch upgrading of aging air motors for old automated coating production lines.
- Original core pneumatic component supporting installation for new intelligent automatic painting production lines equipped with ABB robots.
