Oxide, Tarnish, and Burr-Free Smooth Surface
Busbars used in high-current applications require more than an attractive finish. Burrs, sharp edges, oxidation, tool marks and inconsistent contact surfaces can create problems during insulation, plating, assembly and electrical connection.
Valgro’s automated system combines suitable abrasive-belt and brushing technology to achieve the required result according to the component condition. The machine can be configured for:
- Heavy burr and tool-mark removal
- Light deburring and edge breaking
- Oxide and tarnish removal
- Uniform surface roughening
- Satin or directional brush finishing
- Contact-area surface preparation
- Preparation before tin, nickel or silver plating
- Preparation before powder coating or insulation
The solution is suitable for copper and aluminum busbars used in electric vehicles, battery packs, power electronics, aircraft electrical systems, switchgear, control panels, transformers and renewable-energy equipment.
it produces a clean, consistent contact surface that can support reliable joint preparation and reduce unwanted contact resistance when the complete connection is correctly designed and assembled.
- Automated Busbar Finishing: Reduces dependency on manual grinding and operator skill.
- Copper and Aluminium Processing: Suitable for different busbar materials, sizes and surface conditions.
- Deburring and Edge Breaking: Removes sharp burrs generated during punching, laser cutting, shearing and machining.
- Oxide and Tarnish Removal: Produces a clean and consistent surface for downstream operations.
- Uniform Contact-Surface Preparation: Helps provide repeatable surface conditions at electrical joint areas.
- Controlled Surface Roughness: Abrasive selection can be matched to the required finish and subsequent coating or plating process.
- Consistent Finish Quality: Maintains uniform results across continuous production batches.
- Component Protection: Controlled processing helps prevent unnecessary material removal and surface distortion.
- Production Flexibility: Suitable for straight busbars and multiple widths, thicknesses and lengths.
- Customised Machine Configuration: Belt, brush and multiple-head combinations are available according to the required process.
- Easy Operation: Operator-friendly controls simplify machine setting and production changeover.
- Integrated Dust Extraction: Dust-collection options are available for safer copper and aluminium finishing operations.
Why Busbar Manufacturers Choose Valgro
As EVs, battery storage, aerospace electrification and high-power distribution continue to expand, manufacturers need faster and more reliable methods of preparing copper and aluminium busbars.
Valgro combines decades of metal-finishing knowledge with application-specific abrasive technology and machine engineering. Each solution can be developed through component study and sample trials to achieve the required burr removal, edge condition, surface roughness and production capacity.
Move from manual polishing to repeatable, production-controlled busbar finishing with Valgro.
- Suitable materials: copper, copper alloys and aluminium
- Typical busbar width range: 20–160 mm*
- Typical thickness range: 5–13 mm*
- Suitable for punched, sheared, laser-cut and machined busbars
- Abrasive-belt, roller-brush or hybrid head configuration
- Adjustable processing pressure
- Variable conveyor feed speed
- Adjustable head height
- Uniform component feeding and hold-down arrangement
- Dry- or wet-process configuration subject to application
- PLC-based operator controls
- Suitable dust-collection interface
- Custom input and output handling options
- Automatic abrasive-belt tracking available
- Machine configuration based on sample validation
*Final working range and machine configuration should be confirmed according to the customer’s component drawings, burr condition, productivity and finish requirements.
Electric Vehicles and Battery Systems
- EV battery-pack busbars
- Battery interconnects
- Copper and aluminium cell connectors
- Power distribution units
- Inverter and converter busbars
- Motor-controller components
- High-voltage junction boxes
- Charging-system components
Aerospace and Defence
- Aircraft electrical-distribution busbars
- Aerospace power-control systems
- Ground-support electrical equipment
- Defence electronics and power assemblies
- Lightweight aluminium power conductors
- High-reliability electrical connection components
Power Transmission and Distribution
- High-current copper and aluminium busbars
- Low- and medium-voltage switchgear
- Electrical control panels
- Busduct and busway systems
- Power-distribution cabinets
- Substation equipment
- Transformer and generator components
Renewable Energy and Energy Storage
- Solar inverter busbars
- Wind-power electrical systems
- Battery energy storage systems
- Power-conversion equipment
- Charging infrastructure
- Hydrogen and fuel-cell power systems
Industrial Electrical Manufacturing
- UPS and data-centre power systems
- Railway and metro electrical equipment
- Telecom power-distribution systems
- Industrial automation panels
- High-current power-electronics assemblies
