RR Dual Rotary Brush Edge Rounding Machine
Two brush groups, one pass, a finished radius. The first group breaks the sharp edge; the second completes a full, uniform radius — the configuration for heavier burrs, thicker plate and parts whose edges have to be right without slowing the line down.
- Two rotary brush groups in sequence
- 800–1,600 mm working widths
- For thicker plate and heavier burrs
- Full, consistent radius — no second pass
RR Quick Facts
Configuration: Two rotary brush groups in sequence
Working Widths: 800 / 1,000 / 1,300 / 1,600 mm
Best For: Thicker plate and heavier burrs that still need a full, consistent edge radius
Hold-Down: Magnetic (carbon steel) / vacuum (stainless steel, aluminium)
One-Pass Result: A full, uniform radius on contours and holes
When One Brush Group Is Not Enough
Some parts ask more of edge rounding than a single brush group can give: burrs left by thicker laser-cut plate, a radius specification that has to measure up on every part, appearance parts whose edges are on show. The RR answers with a second brush group. The first group does the heavy work of breaking the edge; the second is dedicated to finishing it — so the radius comes out fuller and more consistent, at production feed speeds, without running parts twice or finishing them by hand.
If your parts are burr-free and only need standard rounding, the single-group R is the simpler machine. If the burr load is heavy enough to need an abrasive belt first, look at the BR family. For slag from plasma or flame cutting, start with the slag removal configurations instead.
Inside the RR: Two Groups, Two Jobs
Station 1 · First Brush Group
Breaks the sharp edge on contours and holes, taking the edge down and removing the burr load that thicker, harder-cut parts carry.
Station 2 · Second Brush Group
Completes a full, uniform radius across the whole part — the finishing pass that appearance parts and measured radius specifications depend on.
Hold-down for every material: a magnetic table holds carbon steel; a vacuum table holds stainless steel and aluminium flat — small parts run safely at full feed speed.
A Fuller Radius, Part After Part
Two Groups, Two Jobs
Neither group has to compromise: the first is set to break edges, the second to finish them — which is why the radius is fuller than a single group can reach.
Built for Heavier Burrs and Thicker Plate
Thicker plate leaves stronger burrs. The RR’s first group absorbs that load, so the finish group still has capacity left to complete the radius properly.
No Second Pass, No Hand Finishing
Parts come off the conveyor finished — no re-running, no manual edge work, and the same result on visible stainless and aluminium parts as on carbon steel.
Before and After One RR Pass
Sharp laser-cut edges become a smooth, consistent radius — safe to handle, ready to coat.
BEFORE
AFTER — ONE PASS
RR Is the Right Choice When…
- Thicker plate leaves burrs a single brush group cannot finish cleanly
- Your parts must meet a measured edge-radius specification, every time
- Appearance parts in stainless steel or aluminium need a uniform, finished edge
- Re-running parts or hand-finishing edges is your bottleneck
Choose Another Configuration When…
- Parts are burr-free and only need standard rounding: choose the R
- Parts need deburring AND edge rounding in one machine: see the BR, HBR, BBR and BRB configurations
- Parts carry slag or heavy dross from thermal cutting: see the slag removal configurations
- Edges are fine but the surface needs finishing: see the Complete Finishing configurations
Compare the Edge Rounding Configurations
| Configuration | R | RR |
|---|---|---|
| Configuration | One rotary brush group | Two rotary brush groups |
| Main Result | Uniform edge radius on burr-free parts | Fuller, more consistent radius on heavier burrs and thicker plate |
| Choose It When | Parts are already burr-free and need standard edge rounding | Burrs are heavier, plate is thicker, or throughput matters |
Compare all edge rounding configurations
RR Technical Specifications
| Configuration | RR — two rotary brush groups |
| Working Widths | 800 / 1,000 / 1,300 / 1,600 mm |
| Main Process | Edge rounding & light burr removal |
| Typical Parts | Laser-cut, punched and sheared sheet metal parts |
| Processing Thickness | 0.5–80 mm |
| Feeding Speed | 1–5 m/min |
| Roller Brush Speed | 9–24 r/s |
| Revolving Speed | 9–24 r/s |
| Hold-Down | Magnetic table (carbon steel) / vacuum table (stainless steel, aluminium) |
| Power Supply | 380 V AC, 50/60 Hz (customizable) |
| Air Pressure Required | 0.5–0.8 MPa |
| Service | CE Certified · Global Service |
All listed safety, servo-control, electrical and auto-compensation features are standard equipment.
RR Dual Rotary Brush Edge Rounding Machine — Frequently Asked Questions
What does the Lasvio RR do?
The RR rounds edges with two rotary brush groups in sequence: the first breaks the sharp edge on contours and holes, the second completes a full, uniform radius. It is built for heavier burrs, thicker plate and parts that need a stronger, more consistent rounding result in one pass.
How is the RR different from the R?
The R runs one rotary brush group and suits parts that are already burr-free. The RR adds a second group — the first breaks the edge, the second finishes the radius — so it handles heavier burrs and thicker plate, and holds a fuller, more consistent radius at higher throughput.
Does the RR remove burrs?
It handles the heavier burrs that come with thicker laser-cut plate, as part of the rounding process. Parts whose burr load needs an abrasive belt first belong on a deburring configuration — see the BR, HBR, BBR and BRB models.
Can the RR finish stainless steel and aluminium appearance parts?
Yes. Stainless steel and aluminium are held flat on the vacuum table, and the multi-directional brush action works every contour and hole edge evenly, so visible parts come out with a uniform edge and no missed spots.
How do I confirm whether RR fits my parts?
Send the material, thickness, part size and the edge result you need — or arrange a sample test on your actual parts. If standard rounding is enough, we will point you to the R instead.
Send Your Parts for an RR Test
Edges failing a radius check, or a finishing bottleneck at the end of your cutting line? Send us the part details — or your actual parts — and we will run them through the RR and show you the finished radius. If the single-group R would do the job, we will tell you.
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