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Tabletop metal lathes are one of the most successful and convenient types of machine tools, allowing turning operations to be carried out in limited production conditions. Mini machines have all the necessary functionality to perform a variety of operations for tool processing of cylindrical workpieces and shaped parts. Tabletop machines, in contrast to large industrial machine equipment, occupy little work space, have compact sizes and are powered from a household electrical outlet with a voltage of 220V. The main scope of application of this technique is small enterprises in the engineering industry, home use, and use in repair shops.

Using machines of this type, metal is removed from workpieces, cutting various types of threads, grinding and rolling parts. The mechanisms are ideal for processing metal blanks and small parts. The design of most models is equipped with the necessary devices and accessories that ensure the necessary accuracy and quality. The design of components and assemblies and design meet the necessary quality and safety standards.

Design features of mini table lathes

The fleet of turning equipment of this type is represented by a variety of models, each of which is distinguished by dimensions, electric motor power and technological capabilities. The main components and assemblies of the products are the same as those of industrial-type models. Cast frame with dovetail guides, headstock and tailstock for installing the necessary equipment and cutting tools. The models are equipped with economical asynchronous electric motors, capable of delivering the required spindle speed over a wide range using a belt drive. Engine operation is protected from overloads.

For installation, you can use special stands and workbenches that allow you to adjust the height of the product.

To work on mini machines, standard standard cutting tools are used. Structurally, such a technique can allow processing of parts and workpieces with a diameter not exceeding 180 mm. For operations on long workpieces, you can use a movable or stationary rest. Installing various accessories significantly increases the functionality of tabletop machines. Each product is made in accordance with the necessary norms and standards of electrical safety. For all presented the lineup Warranty service applies.

Being an exact copy of a standard lathe, the benchtop equipment is designed for the production of one-piece parts. There are also restrictions on the dimensions of processed workpieces. Its main advantage is functionality in a compact size; it is successfully used in small workshops, car repair shops and by amateurs. The small device allows you to accurately process metal, is easy to use, and there is a place for it even in the tightest of spaces. CNC machines are designed to produce small batches of the same type of parts and are used in small businesses.

Classification of tabletop turning units

The main purpose of lathes is processing cylindrical and round parts. In the process of removing excess layers of metal from the surface of the workpiece, it is given the required shape. The process is called turning. If a cavity is selected inside the part, boring is performed.

IN industrial production Lathes of several modifications are used:

• screw-cutting;
• revolver;
• multi-spindle;
• with CNC.

Mini machines for home belong to the universal (screw-cutting) type of equipment and are designed specifically for the production of piece products or small batches. Screw-cutting lathes are capable of performing a range of metalworking operations:

• turning and boring parts;
• end processing;
• development of through and blind holes;
• carving;
• making holes;
• turning of grooves and grooves;
• countersinking.

The functionality of the device can be expanded by purchasing additional accessories, the range of which is quite large.

Design and principle of operation

The design of the mini device is practically no different from its “large” counterpart. The complexity of the design is explained by the high requirements for accuracy finished products and the qualities of the processed materials.

The main parts of the machine: bed and support. The bed is the basis for the remaining components. The support is designed to fix and move the cutter in a precisely designated direction.

Before starting the machine, the part is fixed on the front stand (headstock) in the spindle, which receives movement from the electric motor. The control devices and gearbox are also located here. The spindle is a cylinder-shaped part with very precise geometry. It has seating strips cut out for bearings. The latter are combined with counter grooves in the front pillar. The characteristics of the spindle are largely responsible for the processing accuracy. The caliper moves due to transmission devices and the stroke shaft.

When turning elongated workpieces, the second end is supported by a rear stand (headstock), where a center is provided for this purpose. Here you can fix a cutter (tap, drill) for boring the end. The rear rack is a cast structure that moves along the base guides. For movement, there is a handle installed in a certain position; it fixes the headstock in the right point. The transverse position of the tailstock is adjusted with a screw, which is used when it is necessary to align centers (alignment) and turn cone-shaped workpieces. Vibration is eliminated using steady rests of various diameters.

The weight of a desktop device can be from 13 to 60 kg, with a power of about 500 W. For comparison, the power of a semi-professional machine is at least 1000 W. It can handle the production of small batches of parts quite well. The mini turning machine for home is connected to a 220 V power supply, it works very quietly.

The defining characteristics of a metalworking machine are the maximum diameter and length of the workpiece. The length is determined by the distance between centers. Typically, the diameter of the workpiece that can be turned on a tabletop lathe does not exceed 15 cm.

Part fastening devices

Depending on the shape of the workpiece, the following options for fixing it in the machine are used:

• faceplate - for fastening workpieces of complex configuration or large dimensions. The disadvantage of this method of fixation is the complexity of fastening and centering the workpiece relative to the axis;
• three- or four-jaw chuck - hardened and soft are distinguished;
• collet chuck - convenient for fixing thin workpieces, for example, from a rod or clamping an already turned part;
• drill chuck - does not withstand radial stresses, but can clamp parts of various shapes and sizes.

Types of cutters for benchtop lathes

Metal turning on a machine is done using cutters. There are several groups and types of incisors:

• roughing - for rough processing of the workpiece;
• semi-finish - with their help you can bring the part to readiness with average requirements for quality and accuracy;
• finishing - these cutters are designed for fine work and final finishing; they remove the thinnest layer of metal.

The cutters also differ in the profile of the working edge. The most used ones are through-hole and boring. The first ones sharpen the external contours of a cylindrical or conical shape. The second ones are intended for sampling material from the inside. Threaded ones are designed for applying threads inside and outside the part. grind the end of the workpiece and cut off the finished part. They can also be used to apply transverse grooves.

Particularly complex shaped parts are cut out with shaped tools.

• processing of cylindrical surfaces is carried out with a through-type cutter;
• for reliable fixation in the machine, the end of the part is inserted into the chuck by 1 - 1.5 cm, the length of the finished product will be less than the workpiece by this amount, so the workpiece is taken with a margin;
• Grooving is performed at a low rotation speed, without pressing hard on the cutter.

What parameters to consider when choosing

Weight and dimensions. Initially, it is assumed that the machine should be quite compact. Especially if you plan to work at home or in the garage. If the machine weighs about 100 kg, it is quite difficult to choose a strong table or workbench for it. You will have to make a special stand, which will take up extra space.

Electrical network parameters. Most desktop machines are connected to 220 V networks, but it is worth further clarifying this indicator, because connecting a 380 V cable to the apartment is expensive and technically difficult.

Dimensions of processed parts. Experienced craftsmen select machines with a center-to-center distance of about 40 cm. This is enough for most amateur work.

Machine power. Should be between 500 - 750 W.

Electric motor type. Asynchronous electric motors are characterized by a longer operating life before the first repair.

Limbo. You should pay attention to the size of the dial divisions. The smaller they are, the more accurately the machine will work.

The speed of the machine and the presence of reverse. All benchtop lathes have the ability to adjust the speed, and this is understandable. The speed is selected depending on the type of metal and the nature of the processing. Some models are equipped with reverse - this is a convenient option that you can do without.

Possibility of additional equipment. We do not recommend investing in a highly specialized device. Many models come complete with various accessories that expand their capabilities. For others, you can choose the appropriate equipment. Often, by saving on the basic equipment, you can purchase additionally all the necessary accessories, ultimately getting a multifunctional device.

When purchasing a machine, do the following:

• check whether the moving parts of the machine are free from play;
• run the equipment in several modes;
• study turning accuracy as one of the most important selection parameters. If the machine is not accurate enough to begin with, it will be almost impossible or very expensive to correct the problem.

Review of popular models

Quantum D140X250 Vario

The machine from a well-known German manufacturer is distinguished by a rich set of equipment: a waste tray, spare gears, a protective casing, and a chuck box. Instructions are included in Russian. The engine power is 450 W, with a rotation speed of up to 2500 rpm and smooth speed control, electronic controller and reverse. Processes parts up to 25 cm long and 14 cm in diameter.

Proma SM-250E

A Czech-made machine with excellent functionality and high-quality implementation. Can produce most types of metal processing, including reaming and carving. The device weighs only 23 kg and is convenient for transportation. 230 W motor with a rotation speed of no more than 2000 rpm. Works with parts up to 14 cm in diameter and up to 25 cm in length.

Profi-350

The product of Chinese craftsmen will not disappoint with its quality and functionality. The engine power is 350 V, the rotation speed is 3000 rpm, there is a reverse and a smooth change of speeds. It features high precision turning of parts. Works with workpieces with a diameter of up to 18 cm. It is complemented by many accessories that expand the capabilities of the device.

Corvette 400

Compact and inexpensive machine of domestic production. The electric motor power is 400 W and operates from a household electrical outlet with workpieces up to 18 cm long.

JET BD-3

An excellent device from a Swiss manufacturer. Power consumption is 150 V at spindle speeds up to 3800 rpm. Works with workpieces with a diameter of up to 10 cm and a length of up to 15 cm. Ensures professional precision in processing parts. It weighs only 13 kg, but thanks to the special design of the case, vibration is completely eliminated. The legs are rubberized, so the device does not slide on a smooth surface. The longitudinal feed of the tool is carried out automatically.

A mini-lathe is an excellent solution for those who need to work with custom parts from time to time. It can be placed even in the most cramped spaces: garages, home workshops, offices. Its functionality is in no way inferior to factory models, except that the dimensions of the blanks will be different. In this article we will talk about the operating principle and types of such machines, their advantages, and give recommendations on choosing the right model to complete your tasks.

Purpose of mini-lathes

Essentially, a mini-machine is a smaller copy of larger factory equipment. It is suitable for working with relatively small workpieces, mainly with bodies of rotation: these include parts in the form of spheres, cylinders, cones, and so on. You can use this machine to drill make grooves, cut threads, trim ends and much more. It is also suitable for leveling the surface. It is convenient to use for a variety of types of work, and the quality depends only on the specific company and model.

By purchasing a desktop lathe, install it on a special stand or simply place it on your desktop. However, it may move and wobble as you work, so we recommend securing it to a surface for stability. This is not necessary if you have a special pallet or the working parts are small.

The bulk of such devices are used by craftsmen at home, in small auto repair shops, as well as for teaching schoolchildren and students turning - in school classrooms labor or in the workshops of technical institutes. They are famous for their high functionality, without taking up much space and without requiring special additional equipment. As a rule, they are not suitable for working with large volumes of parts and in industrial production.

Nevertheless, even in large enterprises there is a need to manufacture miniature products - for example, in the production of watch movements. In such cases, particularly precise models are used for serial and small-scale production. Here are some of them:

• 1Р103
• 1B023
• 16Т02А

Design of mini-lathes for metal

Fully justifying its name, the mini-machine differs from its full-size brother in practically nothing except its dimensions.

His main element- this is the frame to which all other parts are attached. It is the basis of all units and has holes for fastening to the table. Usually made of cast iron.

The next element is a support into which a drill, cutter or other processing tool is attached.

He is also responsible for moving the drill in the desired direction, without deviating from the course. It moves using a drive shaft and transmission devices.

The part is fixed on the spindle - another part of the machine, made in the shape of a cylinder. The quality of operation of the entire device depends on its parameters. It is powered by an electric motor.

There is a special center on the rear stand that holds long parts while turning them. The stand is driven by a special lever and is fixed after setting the required position. However, such fine regulation is not available on all devices.

The drive of the machine is most often belt driven - this is the most convenient option, since it is more reliable in cases where the workpiece jams and the mechanism stops.

The smallest machines have only one place for the cutter in the holder, so each time you change the operation you will have to reinsert it and adjust the height. There is also the possibility of adding a mini-machine - you can buy a special holder with a rotation. But it can pose a danger to a novice turner, who runs the risk of bumping into one of the cutters that are not being used during work, which will stick out to the sides at this time.

Methods of fastening parts

Used for various parts different kinds fastenings.

Types of incisors

For desktop mini-lathes for metal, different cutters are used. Among them are:

There is also a classification of cutters depending on what types of work are performed.

• Boring - with the help of them, material is sampled from the inside.
• Pass-through - used for working from the outside of a workpiece shaped like a cylinder or cone.
• Cutting - they can be used to apply transverse grooves, as well as cut off parts and sharpen the end.
• Threaded - apply a thread anywhere on the workpiece, including the inside.

Advantages of using mini-machines

Choosing a machine

Be careful when choosing a lathe, otherwise it will be difficult to use or you won’t be able to use it at all. First, think about why you need it and what exactly you will do with it.

Having figured out all these parameters in my head, you can choose the model you need.

When selecting, you need to pay attention to some characteristics of the device:

About the cost and purchase of used devices

Do not purchase the most expensive machine available on the market - most likely, there may be a model of equal quality, but cheaper, to solve your problems. However, you shouldn’t go to extremes and buy a well-advertised mini-machine that supposedly can do everything and at the same time has a suspicious low price. It is best to approach the issue thoroughly: read all the reviews about the models, talk to sellers, read various sources on the topic and only then make a choice.

There is another option - buy used equipment. It will cost you less, but in order not to risk buying a faulty machine, ask the seller to present all technical documentation on him. We do not recommend that you purchase a device if the person does not have these documents. That way, if it breaks, you won't even be able to fix it because you won't know what part to order.

In addition, you need to check the quality of the mini-machine on site. Check how well the spindle rotates, how accurately the processing is carried out - the same as indicated in the data sheet or not. After a satisfactory inspection result, you can purchase the device.

The production of some parts can be carried out in a home workshop or garage. To achieve this, a variety of equipment is installed. The tabletop lathe has become quite widespread. Its functionality is quite sufficient to obtain the most various products. The metalworking machine in question is in many ways reminiscent of industrial models, but is used to produce small-sized products.

Equipment design

A small table lathe for metal has similar properties to industrial models. The complexity of the created design determines that it meets high requirements for the accuracy of the resulting product. We will name the following design features:

1. The main parts of the mechanism under consideration can be called the frame and the support. The bed is used as a base for connecting all elements and their precise positioning. A support is used to fix the tool. The cutters of a table lathe for processing metal workpieces can be rotated at a certain angle relative to the surface being processed.
2. The part, which in most cases resembles a body of revolution, is fixed in the spindle. In the front part there is a rack, inside of which an electric motor is located to create the main rotation transmitted to the workpiece. At the front there is a gearbox, represented by a combination of gears.
3. The caliper moves in the longitudinal and transverse directions. To do this, a transmission device and a drive shaft are installed.
4. To significantly increase the processing accuracy, the device is equipped with a tailstock in which the center is mounted. In some cases, it is possible to mount a boring tool. In addition, the tailstock can change its position due to the slide. Vibration can be reduced by positioning the steady rest of the required diameter.

The key feature of the design is that its weight varies from 13 to 60 kilograms. This simplifies the process of transportation, installation and maintenance. The power of the electric motor is about 500 W. In this case, the power is supplied from a 220 V network, which also simplifies the installation process in a home workshop.

Some models are equipped with a milling function. In order to improve the quality of processing, a block is installed program control. It allows cutting, drilling and milling in automatic mode according to a written program.

Classification of benchtop lathes

The main purpose of the equipment of this type is to obtain products when processing cylindrical workpieces. When removing a certain amount the material is given a certain shape from the surface. Desktop screw cutting lathe used in various workshops. Classification according to the degree of modification is carried out as follows:

1. Revolver.
2. Screw-cutting.
3. Multi-spindle.
4. CNC.

The tabletop turning and milling machine has become widespread, since such equipment can be used to produce a wide variety of products. Milling differs from turning in that the main rotation is transmitted to the tools. This makes it possible to process flat surfaces.

The combined tabletop lathe is also characterized by very high productivity and functionality. In addition, there is a desktop one, which can be installed to obtain precise products.

In addition, it is worth considering the relatively low cost of the equipment. You can purchase a desktop version at a lower cost when compared with industrial desktop lathes.

It's easy to find on sale great amount various options desktop executions. The main recommendations for selection are the following:

1. Bed size and weight of the entire product. There are very compact models on sale that do not require special conditions installations. However, equipment that is too light is subject to vibration and is less stable. With a structure weighing about 100 kilograms, it may be difficult to select the most suitable turning model.
2. Electrical settings also have important. Most versions operate from a 220 V network, but there are also models that are powered from a three-phase network. The three-phase version is much more difficult to install, since you have to lay a separate cable.
3. Dimensions determine how long workpieces can be turned. There can be a distance of about 40 cm between centers. This is quite enough to obtain the most common products.
4. The power of the turning mechanism is also the most important parameter. It is recommended to give preference to models with an indicator of 500-750 W. Manufacturers install different types of electric motors. Asynchronous versions have a longer service life and high performance.
5. Limbo. When choosing, it is also recommended to pay attention to how divided the entire limbus is. As the index decreases, the processing accuracy increases significantly.
6. Other important parameters include the presence of a spindle reverse mode and the speed of the model. Almost all models have a speed control function. The cutting index is selected depending on the type of metal and the nature of the procedure. Reverse is considered a convenient option, but it is used extremely rarely.
7. It is recommended to pay attention to the version with additional equipment. Experts do not recommend investing in highly specialized devices, since their capabilities are not so extensive. By using equipment, you can significantly expand the functionality of devices.

1. The absence of play is checked. This situation leads to a decrease in processing accuracy.
2. At the time of the test, it is recommended to check the device in all modes.
3. One of the most important parameters The turning accuracy that can be achieved is considered. If the indicator is low, then no equipment or adjustment will allow you to achieve the required result.

A mini CNC metal lathe has become less widespread. The numerical control unit allows you to automate the process and achieve more high precision processing.

In conclusion, we note that it is quite difficult to make a machine with your own hands. This requires an electric motor as well as other elements. Homemade equipment is characterized by relatively low accuracy of operation, as well as low functionality. However, by using scrap materials, you can significantly reduce the costs of setting up your own workshop.

The basic principle of operation of a lathe is the processing of a workpiece rotating around its axis with a linearly moving cutting tool (cutter). During their existence they have been significantly improved. From hand and foot spindle drive to controlled rotation with servo drive. From manual cutting to automatic positioning and movement using CNC. Along with the development of the design of the classic machine, a large number of highly specialized and multifunctional automation systems have been developed.

THIS IS INTERESTING! The lathe is one of the first mechanical processing tools on Earth.

What can you do with a benchtop lathe?

With all the existing variety of turning equipment, the most popular option of the group remains the classic one - a universal lathe with horizontally mounted headstock and tailstock and an automatically moved caliper.

On such machines it is possible to carry out:

1. cylindrical, conical and end processing of the workpiece,
2. drilling,
3. thread cutting and cutting,
4. groove milling and other milling work (if additional equipment is available).

IMPORTANT! A modern tabletop lathe combines many of the capabilities of its industrial “brothers” with lightness and small size, which significantly reduces the requirements for choosing a workspace and installing equipment.

Such machines have found wide application in:

• small industries and experimental sites,
• repair shops,
• research and testing laboratories,
• modeling, hobbies and design industries,
• for individual use.

Today, a small, low-noise tabletop metal lathe can be bought and placed even in a living space: a loggia or a room. And its owner can become his own repair shop, or realize his design dreams.

How to choose a suitable machine?

IMPORTANT! When choosing, you need to decide on the tasks that need to be solved.

The most important parameters for choosing a desktop small-sized lathe are:

• workpiece and product dimensions,
• workpiece material,
• productivity and processing accuracy.

ATTENTION! Changing the requirement for any parameter leads to a significant change in the size, weight and price of the machine.

Our store assortment

We present a wide range of equipment, many items are in stock. You can buy a lathe on our website very easily. And delivery is carried out to any region of Russia as quickly as possible. TECHNOREAL has extensive experience in supplying tabletop lathes to a wide variety of consumers, and consultations with our specialists can give you additional important information for selection.

We know that no consultation can give a complete understanding of the machine without a visual and tactile examination of the subject.

For our demanding customers and guests, we have opened a permanent showroom near the center of Moscow. The hall displays almost all the equipment we currently have in stock. We suggest not just buying a product based on the picture, but first familiarizing yourself with all the features of each tabletop lathe and even testing it in operation!

Among the main features of tabletop lathes we consider:

• type of spindle drive (presence or absence of a mechanical gearbox),
• spindle motor type and motor control system,
• the presence or absence of automatic longitudinal and transverse feed of the cutter,
• the guitar gear mechanism, as well as the changing mechanism and the variety of thread types available,
• design features of the caliper, tailstock,
• equipment.

Depending on the design, for example on the type of engine, machines with the same maximum processing diameter and RMC, in one case will be intended for domestic use (commutator motors), and in the other - for professional production activities(for example, asynchronous motors). Our specialists are ready to provide you with all necessary information about any equipment presented in the catalogue.

We are ready to provide the following types of equipment modification services:

• supply of custom-made machines with non-standard parameters,
• refurbishment of standard desktop machine into a CNC machine.

We hope that by visiting us or contacting us, you will be able to learn more about the wide variety of offers on the market and order exactly your machine.