The main roller brush is the core cleaning component of any robot vacuum cleaner, responsible for agitating and sweeping dust, debris, pet hair, and fine particles directly into the suction port. Common types include the all-rubber brush (highly effective at preventing hair tangles), the bristle-and-rubber combo brush (offers balanced performance on various floors), the blade-tipped anti-tangle roller (features built-in blades that automatically cut wrapped hair), the dual/double roller system (uses two rollers stronger pickup), and the advanced DuoDivide/DuoRoller brush (the latest design). Choosing the appropriate roller type significantly reduces maintenance, prevents blockages, and ensures consistently powerful cleaning results.
5 Main Types of Robot Vacuum Roller Brushes
All-Rubber Brush
Material: 100% soft TPU or silicone rubber with V-shaped or wavy fins.
Design goal: Completely eliminate hair tangling for homes with long human hair or heavy-shedding pets.
Near-zero tangling (99%+ hair-free), very quiet, gentle on hard floors, easy to rinse clean.
Slightly weaker at picking up large debris or deep carpet cleaning compared to bristle brushes.
Bristle + Rubber Combo Brush
Material: Alternating rows of stiff nylon bristles and rubber fins.
Design goal: Classic balanced performance – bristles agitate carpet fibers while rubber strips sweep hard floors.
Excellent on carpets, strong overall pickup, cheapest to produce.
Hair tangles the fastest (weekly cutting required in long-hair homes), louder, bristles wear out over time.
Blade-Tipped Anti-Tangle Roller
Material: Rubber base with small embedded metal or plastic blades protruding from the fins.
Design goal: Actively slice hair as soon as it starts wrapping, combining bristle-level cleaning with automatic detangling.
Near-zero tangling (99%+ hair-free), very quiet, gentle on hard floors, easy to rinse clean.
Slightly weaker at picking up large debris or deep carpet cleaning compared to bristle brushes.
Dual / Double Roller System
Material: Usually two full-length rollers (can be rubber or combo) spinning in opposite directions.
Design goal: Double the contact area and “throw” debris toward the center suction channel for maximum pickup power.
30–50 % stronger suction feel, excellent with large debris and thick carpets.
Makes the robot taller (harder to get under furniture), double the maintenance, hair tangle issue remains if bristle type is used. brushes.
Currently the best anti-tangle performance (Roborock claims 100 %), stronger pickup than single rubber roller, quiet.
Highest price, still exclusive to flagship models.
DuoDivide / DuoRoller Brush (latest generation)
Material: Single roller divided into two independently spinning sections with a V-shaped center channel.
Design goal: Roborock-patented 2024–2025 solution – hair is automatically guided outward to the ends instead of wrapping the middle.
techTongBo Roller Brush for Robotic Vacuum Cleaners
How It’s Made and Why It Works Well
techTongBo makes roller brushes that go inside robot vacuums. Here’s a simple step-by-step look at how we produce them and what helps them work reliably.
1. Starting with Clean, High-Quality Bristles
We use strong nylon bristles and special plastic fibers that reduce static. Before use, every bundle is thoroughly washed with ultrasonic waves and heated above 120 °C. This removes any oil or dust, so hair is much less likely to get tangled when the robot cleans your floor.
2. Planting the Bristles in a Smart Pattern
Computer-controlled machines place each bristle exactly where it needs to be, accurate to within 0.05 mm. Instead of straight rows, the bristles are arranged in a gentle spiral around the roller. This lets the brush cover more floor area at once and pick up dirt more evenly.
3. Making Sure the Brush Spins Smoothly
After assembly, every roller is balanced three times and then run at high speed for 72 hours straight. Cameras and sensors check for any tiny imperfections. The result is a brush that spins quietly and never wobbles while the robot is working.
4. Keeping Hair from Wrapping Around
We combine soft and firm bristle sections with thin silicone strips along the roller and add a light water-repellent coating. These features help long hair and pet fur slide off instead of getting stuck.
5. Strong but Light Core
The center tube is made from aluminum and carbon fiber in one solid piece. This keeps the roller lightweight yet very strong and stiff, so it performs well over a long time.
By choosing good materials, assembling carefully, and testing thoroughly, techTongBo roller brushes stay quiet, clean effectively, resist hair wrap, and last a long time in robot vacuums.