Overview
The Weiler 36045 cup brush is a professional-grade knot wire cup brush engineered for metalworking applications. Featuring a 6″ diameter with 0.025″ extra-coarse carbon steel wire, this brush delivers aggressive cutting action for rapid removal of rust, corrosion, paint, and weld scale. The 5/8″-11 threaded arbor provides secure mounting on standard angle grinders and compatible tools.
Key Features
- 6″ brush diameter for broad contact area and fast coverage
- Extra-coarse 0.025″ carbon steel wire for aggressive material removal
- Knot twist design—less flexible and more aggressive than crimped alternatives
- Metal threaded hub with 5/8″-11 arbor for secure tool mounting
- 6,600 RPM maximum speed rating for safe operation on angle grinders
- Single-row cup design for precision edge work and general surface conditioning
Technical Specifications
- Brush Diameter: 6″
- Wire Diameter: 0.025″ (Extra Coarse)
- Wire Material: Carbon Steel
- Arbor Type: 5/8″-11 UNC Threaded
- Hub Type: Metal Threaded
- Wire Configuration: Knot Twist
- Maximum RPM: 6,600
- Tool Compatibility: Angle Grinder (4.5″ – 7″ disc grinders)
- Recommended for: Steel and ferrous metals
- Part Number: 36045
- UPC: 012382360450
Typical Applications
- Rust and Corrosion Removal: Fast removal of surface oxidation and rust from steel parts and structures
- Weld Cleaning: Removal of weld spatter, scale, and discoloration on welded joints
- Paint and Coating Removal: Stripping paint, powders, and old coatings prior to refinishing
- Surface Preparation: Deburring, roughening, and general surface conditioning before welding, painting, or coating
- Fabrication Shops: General-purpose metalworking cleanup and surface finishing
- Maintenance and Restoration: Equipment refurbishment and rust remediation
Compatibility & Replacements
Compatible With
- Angle grinders with 4.5″ to 7″ disc capacity
- Standard power tools with 5/8″-11 UNC threaded arbor
- Industrial grinding and surface preparation equipment
- Metalworking fabrication tools and workshops
Replaces / Drop-In Replacement For
- Weiler Vortec Pro 6″ knot wire cup brushes (OEM part 36045)
- Generic 6″ knot twist cup brushes with 5/8″-11 arbor and similar wire gauge
Works With
- Angle grinders from major manufacturers (DeWalt, Makita, Milwaukee, Bosch, Metabo, etc.)
- Industrial pneumatic and electric grinder systems
- 5/8″-11 UNC arbor-compatible brush mounting systems
- Standard abrasive and surface preparation workflows
