How to Select Wire Cup Brush

April 05, 2021

How to Select Wire Cup Brush

How to Select Wire Cup Brush

Wire cup brushes are brushing tools made from carbon steel or stainless steel filaments that are cup-shaped. Machinery companies use wire cup brushes for surface preparation, deburring, and finishing of surfaces. Their main uses include removal of rust, paint, and welding scales.


Features of Wire Cup Brushes

One of the special features of wire cup brushes is that they provide non-shield properties with encapsulated coolant. Some useful characteristics include durability, the highest level of long-lasting finishing, and high technology. Wire cup brush diameter, shaft, and face length can be standard or can be customized as per requirements.

Wire Cup Brush Fill Materials

Wire cup brushes are mainly filled with the following material: Nylon 6-6 or 6-12, abrasive nylon, conductive nylon, polypropylene, polyester, polyethylene, horsehair, Tampico fiber, and other materials. Some of the most advanced filling materials are steel wire, stainless steel wire, brass wire, bronze in wire forms.

Wire Cup Brush Types (Diameter, Size, and Trim Length)

Wire cup brushes are essential for surface preparation, deburring, and surface finishing works. Cup brush sizes are available in a wide range. For example, 

  • Size: 1-3/4 "to 2-3/4." (or small) for crimped wire cup brushes. 
  • Size: 3" to 6" (or more) for crimped cups with an arbor hole.
  • Knotted Twist Cup Brush with single and double rows are also available in various diameters up to 6”.

Sometimes, Small surfaces don't need a small tool for surface preparation, deburring, and surface finishing. You need to assess all your surfaces that include wire size and trim length. Always choosing a large wire cup brush is not the right option sometimes short wire brushes can be more effective.

Types of Wire Cup Brushes

Wire Cup brushes are available in the following levels and sizes:

  • Utility Cup Brushes: Utility wire cup brush removes scale, paint, rust, and small burrs of dust deposits. Standard carbon steel, stainless steel, brass, and nylon variations are available.
  • Mini grinder Cup Brushes:  Mini grinder brush used for a high-speed angle grinder with high-speed spinning. They are best suitable for deburring, cleaning welds, scraping paint and rust, and preparing the floor. Applicable for both crimped and twisted knot types with carbon steel, stainless steel, brass, or bronze wire.
  • Standard Duty Cup Brushes: These are built to remove scale, rust, and paint, including deburring and polishing, as well as surface preparation. A bigger format enables large surface areas to be enclosed. Carbon steel, stainless steel, brass, and bronze wire, plus abrasive acrylic, nylon, and handled or untreated Tampico fiber are standard-fill products.
  • Standard Duty Knot Cup Brushes: Its main applications involves high-speed electrical or pneumatic grinders for heavy-duty cleaning of large surfaces. It removes the scale for welding, rust, old paint, and corrosion.

Which Wire Cup Brush You Need?

There are different types of wire cup brushes are available, but the selection of the right tools is not all about filament materials, it depends on the workpiece element too.

To choose the right wire cup brush, you need to examine the crimped wire cup brush and the Knotted Twist Cup Brush. It is also important to consider brush diameter, wire size, and trim length when selecting the correct cup brushes.

Crimped Wire vs. Knotted Wire

Cutting and cleaning take place at the tips of the tool with wire cup brushes; however, small pieces of wire can break down during regular metalworking jobs. For this, The wire filaments are crimped to ensure that these breaks are clean and smooth and the edges are clear. For minor projects, crimped wire cup brushes have wide applications.

Cup brushes also have knotted wire to support tooltips and facilitate more vigorous brushing performance. Knotted wire cup brushes are available in single-row, double-row, and cable twist styles. Double-row tools provide additional fast cutting and cleaning over wide areas. The most vigorous brushing action is given by cup brushes with cable twists.




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