Finish Sanders
ROBA Tech
Manufacturer: MB Machine (USA & German)
Type: Rotational Brush Belt Sanding System
Industry: Cabinets, Doors, Furniture, Other
Materials:
Wood
Metal
Plastic
Composite
The patented Roba Tech principle is used for the sanding of flat and profile surfaced.
The rotational brush belt sanding system for optimal processing in the areas of:
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Intermediate lacquer sanding
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White wood sanding
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MDF sanding
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Metal deburring
Due to its innovative sanding method the Roba Tech offers optimal prerequisites for best surface quality.
The main idea of the ROBA Tech principle is to avoid the main disadvantage of all today known drum based brush sanding machines: Those who work normally with sanding drum with a diameter of about 310 mm are only in a very small area in touch with the work piece, about 30 mm. Only in the vertex of the circle circumference of the tool a sanding process is possible. The innovative and patented ROBA Tech is equipped with a totally new developed sanding belt containing 174 sanding strips and provides a sanding area of approx. 1300 x 1500 mm in touch with the workpiece and more than 250 meters of sanding material on all aggregates. This is unique on the market of brush sanding machines. A 360 ° rotation of the sanding aggregate over the work piece makes it possible to reach all edges and corners of a workpiece. New is the reinforced disk unit, which now can also be used for light structuring and calibration work. For this purpose it is placed at the inlet of the machine and adapted to this task by the use of special disc tools: Discs with steel wires are used for texturing, being able to perform regardless of the grain direction of the wood.
The plain Micron discs are used to sand flat surfaces and create a chaotic sanding pattern that can be easily covered by a topcoat.
Conical discs make it easier to sand part edges and V-shaped groves, allowing the sanding tool a better reach of the milled contours. In order to use Micron or conical discs, it makes sense to install the disk unit at the machine inlet. The subsequent efficient ROBA Tech sanding belt takes over the final fine work.
When the machine is being phased out, many customers choose a double brush unit, which makes ROBA Tech even more flexible when jumping back and forth between solid wood and lacquer sanding tasks. It is also possible to design this unit as a cleaning station.
The intensive sanding of the ROBA Tech unit needs a very good vacuum to hold even small parts securely. A typical MB design of the vacuum channels ensures that an optimal holding force is generated with minimal vacuum fan power.
Many by PLC adjustable sanding options help the operator to set the machine to his special sanding requirements.
ROBA Profi Brush
Manufacturer: MB Machine (USA & German)
Type: Rotational Brush Belt Sanding System
Industry: Cabinets, Doors, Furniture, Other
Materials:
ROBA Profi Brush, the alternative brush sanding machine for a reasonable price. Constructed for the following operation areas:
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Intermediate lacquer sanding
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Wood fine sanding
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MDF sanding
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Light distressing processes
The starting point of the ROBA Profi Brush principle is clockwise followed by counterclockwise direction sanding: Only this procedure guarantees that in every case protruding wood fibers are cut off, regardless of the grain direction of the material, both wood or MDF.
In basic version the machine has two sanding drums and a pressure roller system. This version represents a solid basic equipment for every user who is striving for an optimum price/performance ratio. Due to the modular structure, the ROBA Profi Brush series can be expanded with further systems such as disc, Cross Belt and cleaning units.
A vacuum transport system can be provided as an option for small workpieces. In case the customer wants maximal comfort, the aggregate positions can be motoric controlled.
A machine with a Cross Belt unit is available for the use in finishing lines. Here the aggregate constellation has been kept very compact to enable a narrow 370mm pressure roller distance. In this way even complicated workpieces with a small vacuum area can be transported safely.
An optional cleaning unit at the end of the machine includes a special brush and is equipped with an Ionization Bar and blower system.
Wood
Metal
Plastic
Composite
ROBA Duplex
Manufacturer: MB Machine (USA & German)
Type: Belt Sanding Machine
Industry: Joiner's Workshop, Industrial Plants, Wooden Stairs, Furniture, Doors, Cabinets
Materials:
The belt sanding machine has been developed for MDF, white wood, sealer and primer sanding purposes.
Customers:Joiner’s workshops, Industrial plants, Wooden stairs manufacturers, Furniture door producers
The ROBA Duplex is famous for its simple operation and optimal results. Processing times are considerably shortened.
The ROBA Duplex uses a divided sanding belt that is equipped with slots. 100mm long sanding brushes with the desired grit are inserted from above and below into these slots.
This means that two different abrasive trimmings can be used, for example a K120 grit at the top for coarse sanding and a K240 grit at the bottom for lacquer sanding. The pneumatic lifting from sanding area to sanding area is executed by a switch. This means that there is no time-consuming machine set-up necessary if you want to change the process.
The system is based on a belt system instead of cylindrical sanding brushes. The advantage over cylindrical tools is obvious: the belt ensures a flat and wave-free sanding. The workpieces are only pressed against the sanding belt and do not have to be laboriously guided past the tool. This results in significantly shorter processing times, while offering improved sanding quality. A constant oscillation of the unit ensures better utilization of the sanding media and blurs possible sand marks.
MB has developed a Twin Duplex for companies who need more capacity when working with the ROBA Duplex. This machine has a sanding belt accessible from both sides and, equipped with two worktables, can be used by two operators at the same time.
If long workpieces, such as tabletops, must be edge sanded, MB offers the ROBA Duplex XL. Here the user has a work area of approx. 1950mm. For very high workpieces, such as drawers, a ROBA Duplex with a 350mm sanding area is available.
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Wood
Metal
Plastic
Composite