Rotary Brushes Construction

Metal Back Strip Rotary Brushes

Coiled metal back strip brushes are manufactured by winding a straight metal back strip brush around a core construction. The metal back strip brush consists of densely compressed filament laid into an unformed metal strip which is formed vertically into a “U” shape by a binding wire.

The strips are coiled close wound under pressure to produce a dense brush face or open wound for less density. A larger winding pitch provides a less dense brush and conforms better to the surface being brushed. Once the coil is finished, Tanis can then assemble it to a core, a shaft or supply it unassembled for mounting on installed equipment.

Standard Core Systems

• Solid stainless steel or steel shaft with journal ends machined to your requirements. Recommended shaft sizes between 1/2” to 2”. Due to weight of the final assembly, we recommend shaft sizes not to exceed 2” diameter.
• Stainless steel or steel tubing is used for the core. Journal ends for drive and bearing surfaces are press fit and shrunk inside the tube. The journal ends are either stainless steel or steel.
• Stainless steel or steel tube with end collars to accept customers’ shaft size. Tube diameter can be made to any size. Collars are made with set screws and/or single or double keyways. Design is recommended for slower speed applications.

Stapled Set Rotary Brushes

Stapled set rotary and wheel brushes are manufactured by inserting individual tufts of filament into a drilled hole in a block of plastic and securing with a staple. The staple is made of steel or nickel-silver which is predicated by the environment and the conditions the brush will be performing under.

Core Construction

Stapled set rotary brushes are made with an extruded or machined plastic core pressed onto a shaft or core. The core can either be press fit onto a shaft, an internal tube with collars to accept an installed shaft, or a tube construction with journal ends. Plastics including polyvinylchloride (PVC), polypropylene, high-density polyethylene (HDPE), ultra-high molecular weight (UHMW), ABS or delrin are used as core materials.

Tanis also features a bonded core technology casting urethane material onto a shaft as another core construction for stapled rotary brushes. The urethane is cast directly to the metal shaft.

Stapled set wheel brushes are made with a round, plastic block including an arbor hole. Bearings can be press fit into the arbor hole, if required.

The Standard Core Systems are:

1. Solid stainless steel or steel shaft with journal ends machined to your requirements. Recommended shaft sizes between 1/2” to 2”. Due to weight of the final assembly, we recommend shaft sizes not to exceed 2” diameter.
2. Stainless steel or steel tubing is used for the core. Journal ends for drive and bearing surfaces are press fit and shrunk inside the tube. The journal ends are either stainless steel or steel.
3. Stainless steel or steel tube with end collars to accept customers’ shaft size. Tube diameter can be made to any size. Collars are made with set screws and/or single or double keyways. Design is recommended for slower speed applications.
4. Stainless steel or steel tubing with flange mounted journal ends for drive and bearing surfaces. Tube diameters usually range from 4” to 12”. This design used for long shaft ends for better support. The ends are either shrunk in place or connected by screws for permanent fit.