How to Choose a Road Sweeper Gutter Broom: Poly vs Wire vs Combination
Buying guide · 6 min read · updated 2026-06-26
The gutter broom (side brush) is the part of a street sweeper that does the hardest work and wears out fastest. Choosing the right fill and the right fit is the difference between clean curbs and a broom you replace every few weeks.
This guide covers the three things that actually matter when you source a gutter broom: the fill material, the physical fit to your machine, and matching common sweeper brands.
1. Fill material: poly, steel wire, or combination
Almost every gutter broom decision comes down to the filament. Each fill trades aggressiveness against surface-friendliness and wear life:
| Fill | Best for | Trade-off |
|---|---|---|
| Polypropylene (PP) | General sweeping, leaves, light debris, painted/coated surfaces | Wears faster on coarse asphalt |
| Steel wire | Heavy, compacted dirt, gravel, aggressive curb scrubbing | Too aggressive for delicate surfaces; can mark |
| Combination (PP + flat steel wire) | Mixed municipal routes — most popular all-rounder | Slightly higher cost than all-poly |
2. Match the physical fit
Even the perfect fill is useless if it does not bolt onto your sweeper. Before ordering, confirm four numbers:
- Outer diameter — common disc brooms are around 400 mm; large round-top brooms reach ~1100 mm.
- Bore / mount-hole diameter — e.g. a 400 mm Nilfisk disc broom uses a 220 mm bore; large brooms often use a 60 mm centre hole.
- Bolt pattern / plate thickness — make sure the mounting plate and hole spacing match your hub.
- Filament diameter — round filament (0.5–1.0 mm) for general work, flat 2×3 mm wire for heavy scrubbing.
3. Match your sweeper brand
Most gutter brooms are sold as direct replacements for a specific sweeper. We supply bolt-on replacements for the major brands, for example the Nilfisk side gutter broom (400 mm OD, 220 mm bore), the all-steel rotary 400 mm steel-wire gutter broom for routes where poly wears too fast, and the heavy-duty Dulevo / Johnston round-top gutter broom (1100 mm).
If you tell us your sweeper make, model and the old broom's dimensions, we will match it exactly — including non-standard sizes.
Frequently asked questions
- Poly or wire gutter broom — which lasts longer?
- On coarse, abrasive asphalt, steel wire lasts longer because poly abrades quickly. On smooth or painted surfaces, poly lasts well and is gentler. For mixed municipal routes, a poly-plus-wire combination is the usual best balance of life and cleaning power.
- How do I find the right replacement gutter broom?
- Match the outer diameter, the bore (mount-hole) diameter, the bolt pattern and the filament type to your existing broom. Sending the sweeper brand/model plus the worn broom's measurements is the fastest way to get an exact match.
- Can you make a non-standard gutter broom size?
- Yes. Gutter brooms are made to order, so diameter, bore, fill material and filament gauge can all be tailored to your machine and route.
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Need help choosing or a custom spec?
Send us your machine, drawing or requirement — we'll match the right brush and quote, usually within one business day.
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