Removing the allowance, removing small irregularities, smoothing roughness, finishing workpieces and parts is carried out on grinding machines. The thickness of the material removed is measured in tenths of a millimeter. The tool is intended for processing of metal alloys, wood of various hardness and products based on it, - chipboard, MDF, OSB and plywood. Can be polished composites and plastic. The most common circular grinding (drum type) and combined.
The best circular grinding machines
Processing of the workpiece is made of abrasive material, mounted on a rotating drum. Sanding part is rigidly mounted on the desktop. Thanks to the small removable layer, the surface is smooth with high accuracy.
Machine control is done manually or by automatics. As an abrasive the tape with various numbers of grinding grain is applied. It is possible to create decorative surfaces, for example, with the effect of an aged wood, - brushing.
Encore Corvette 57 - inexpensive
A grinding machine equipped with a main power unit and a feed motor powered by a 220 volt electrical network. It is used for roughing and finishing of wooden flat blanks. Equipped with dustproof bearings, spring loaded abrasive belt tension mechanism.
Rigid steel frame, balanced drum, stable automatic feed rate provide high performance and precision machining. Provided desktop extenders to work with large-sized blanks.
Pros:
- Affordable cost.
- Connect the vacuum cleaner.
- Functional.
Minuses:
- Vibrates at full loads.
- Noisy.
Holzstar ZSM 405 - for the home craftsman
Drum machine for processing parts with a flat surface. Equipped with an adjustable flow of a stepless view, built-in chassis. Provided for height adjustment for processing mixed blanks.
Change of sanding belt is carried out without the use of additional equipment. The electric motor with mains supply 220 volts is designed for long-term work with high performance. The machine is equipped with a pair of strong wheel sets to move.
Pros:
- Compact size, power, height adjustment and feed adjustment.
- Possibility to connect a dust extractor.
- Mobility, powered by 220 volts.
Minuses:
- Vibration is felt when processing massive workpieces at full power, it is required to be fixed to the floor.
- No pens to move.
Jet 10-20 PLUS 628900M - for a small workshop
Compact unit for preliminary and finishing processing of wooden blanks. It is applied in house conditions, a small production workshop or a building site. Equipped with a powerful asynchronous motor with a 220 volt connection.
The cantilever installation of the grinding drum allows the billet to be processed up to half a meter in two passes. It is possible to change the equipment for brushing operations to decorate the surface.
Pros:
- Convenient, easy to manage, reliable.
- Productive, not heated with prolonged use.
- High precision when brushing.
Minuses:
- Price tag
- Periodically slips abrasive tape.
The best combined grinding machines
The principle of operation is based on the movement of the "endless" abrasive tape, dressed on a special device. The mechanism provides the necessary tension force, protects the tape from sagging. The movement of the abrasive is provided by an electric motor.
The workpiece is located on the working plane of the table. Material removal occurs when the part contacts the grinding grain. The machine is additionally equipped with an abrasive disc, to enhance the overall functionality of the unit.
ZUSR ZHS-330 - a desktop version of the machine
The grinder of the compact sizes and small weight. The latter circumstance allows you to transfer the mechanism to the desired location, to mount on a stable basis. The motor is connected to a network of 220 volts.
Fixation of the workpiece is carried out stops and clamps. There is a mechanism for accidental restart in case of power failure in the network. Replaceable abrasive nozzle allows you to work with wood, plastic and metal.
Pros:
- Compactness.
- Convenient to work in a small room.
- The very thing for small parts.
Minuses:
- The table in front of the grinding wheel requires rigid fixation.
- Price is too high.
ENKOR Corvette-51 - for small blanks
The small tape and dish-shaped grinding machine for work with small-sized details. Allows you to perform preliminary and finishing processing of products from chipboard, MDF, OSB, plywood, composite materials, plastic and metal.
Well sharpens knives and other cutting tools with a flat blade. Belt drive eliminates the possibility of jamming of the working bodies. Provides the ability to quickly rearrange the desktop. The machine is equipped with a protractor stop.
Pros:
- Small dimensions, price.
- Convenient to work with small crafts.
- Sharpener functions.
Minuses:
- Perceptible vibration on the table.
- It is necessary to fix the frame to the base.
JET JSG-64 - for small workshops
Grinding machine for small workshops with piece production. Used for wood and metal work. Tape handles large planes, the ends - the disk. It is possible to tilt the belt angle by 90 ° for polishing overall surfaces.
It is possible to change the position of the desktop in front of the tape. Built-in emergency shutdown mechanism in case of emergency situations. The unit is easy to learn and maintain.
Pros:
- Easy to use, fulfills its purpose.
- The ability to use interchangeable tooling from other similar machines.
- Not only for wood, but also for metal.
Minuses:
- Very flimsy table in front of the circle.
- A weak motor begins to buzz as effort is applied, it does not pull.
Einhell TC-US 400 - stationary machine
Surface grinding unit with a fixed installation. Designed to work with wood of different density and plastic blanks. Closed belt drive for increased safety.
The body is covered with a special anti-corrosion protective coating. Fixed desktop at the required angle to expand the capabilities of the machine. The unit has a long service life, easy to use and maintain.
Pros:
- High-quality assembly, low vibration.
- Surprisingly, quiet.
- Possibility to connect a vacuum cleaner.
Minuses:
- Changing the tape requires a certain time.
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