Summary
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Core definition: Main brooms (also called cylindrical brushes, sweep brooms or roller brushes) are the primary sweeping components in industrial sweepers, responsible for lifting and transporting dust and debris into the hopper.
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Use cases: Warehouses, logistics centres, manufacturing plants, car parks, garages, outdoor yards and heavy-duty industrial environments.
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Material options: Polypropylene (PPL – soft, medium, hard), union/mix fibre, steel wire, steel-mix.
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Selection principle: Match fibre stiffness → floor surface → debris type → indoor or outdoor use.
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Side brushes: Extend working width and enable edge, corner and obstacle cleaning.
Introduction
Industrial floor sweepers — ranging from compact manual machines to large battery-powered, LPG or diesel units — rely on centrally mounted main brooms to lift dust and debris into the collection hopper.
These brooms are available in different fibre materials and diameters, each optimised for specific surfaces, debris levels and operating environments.
This guide explains the most common main broom and side brush types, their characteristics, and how to select the correct option for consistent sweeping performance and long service life.
Main Brooms (Cylindrical Brushes)
Main brooms are primarily classified by fibre material and fibre stiffness. The correct selection directly affects sweeping efficiency, dust control, surface protection and durability.
Soft PPL Main Broom
(0.3 mm)

A soft polypropylene broom designed for fine dust and light debris on smooth indoor floors.
Characteristics
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Fibre diameter approx. 0.3 mm
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Very gentle on sensitive surfaces
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Reaches joints and minor surface irregularities
Typical applications
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Polished concrete
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Vinyl and epoxy floors
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Indoor production areas
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Light maintenance sweeping
Medium PPL Main Broom
(0.6–0.9 mm)

The most commonly used all-round broom for industrial sweepers.
Characteristics
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Fibre diameter 0.6–0.9 mm
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Balanced stiffness for universal sweeping
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Chemical- and oil-resistant PPL
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Stable performance indoors and outdoors
Typical applications
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Warehouses and logistics centres
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Light industrial areas
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Asphalt and coated concrete floors
Hard PPL Main Broom
(1.0–1.5 mm)

Designed for aggressive sweeping on rough or heavily soiled surfaces.
Characteristics
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Fibre diameter 1.0–1.5 mm
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High stiffness for heavy debris
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Effective on structured and uneven floors
Typical applications
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Car parks and loading bays
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Rough concrete
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Outdoor areas with compacted debris
Soft Union/Mix Fibre Main Broom

A blend of natural and synthetic fibres (e.g. palmyra, tampico or synthetic equivalents), used where static electricity or very fine dust is problematic.
Characteristics
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Fibre diameter approx. 0.2–0.6 mm
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Reduced static electricity compared to pure PPL
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Very gentle sweeping action
Typical applications
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Indoor fine dust
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Delicate floor surfaces
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Environments sensitive to static build-up
Steel / Steel-Mix Main Broom

A reinforced broom combining PPL fibres with steel wire for extreme conditions.
Characteristics
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Very high stiffness
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Penetrates compacted or sticky debris
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Extremely durable on abrasive surfaces
Typical applications
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Construction sites
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Industrial yards
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Stubborn debris on rough outdoor surfaces
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Not recommended for delicate indoor floors
Side Brushes

Functions
Side brushes extend the sweeper’s working width and ensure effective cleaning where the main broom cannot reach.
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Sweep debris into the path of the main broom
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Clean along walls, racking, pillars, façades and edges
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Improve access in narrow or constrained areas
Sweepers may be equipped with one or two side brushes, depending on model. Some machines also use a third brush mounted on an adjustable arm for enhanced reach.
Common Side Brush Materials
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PPL (soft, medium or hard)
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Nylon
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Union / mix fibre
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Steel wire
Material selection follows the same logic as main brooms: match fibre stiffness to surface type and debris level.
Expert Advice
Clean Part provides full technical support for broom identification and selection.
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Use soft fibres (≈ 0.3 mm) for fine dust and sensitive indoor floors.
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Choose medium PPL (0.6–0.9 mm) as the universal solution for mixed environments.
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Select hard PPL or steel-mix for outdoor use, rough surfaces or compacted debris.
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Switch to union/mix fibre if static electricity causes dust to cling to the broom.
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Always verify broom width, core design and drive pattern to ensure compatibility with the sweeper model.
Clean Part provides full technical support for broom identification and selection.
FAQ – Main Brooms and Side Brushes for Sweepers
Which broom material is best for indoor sweeping?
Soft or medium PPL (0.3–0.9 mm) is ideal for smooth indoor floors and fine dust.
What broom type should I use outdoors?
Hard PPL (1.0–1.5 mm) or steel-mix brooms perform best on rough outdoor surfaces.
When should a main broom be replaced?
When fibres are worn down, bent, or when sweeping efficiency and dust control decrease noticeably.
Which side brush material is the most versatile?
Medium PPL side brushes offer the best balance for mixed indoor and outdoor use.
Can union/mix fibre reduce static electricity?
Yes. Natural fibre blends significantly reduce static build-up compared to fully synthetic brooms.
Clean Part – Your Supplier of Main Brooms and Side Brushes
Clean Part Your supplier of main brooms and side brushes compatible with all major industrial sweeper brands.
We offer fast delivery across Europe and expert support with fibre selection, compatibility and custom solutions. Contact us!