Drilling machine 2M112: Specifications, the passport
Drilling machine 2M112, compact dimensions which allow to install it on a desktop surface, refers to the equipment of the middle price category. The optimal ratio of affordable cost and decent technical characteristics makes the machine of this model a leader among similar equipment of domestic and foreign production.
Small-sized desktop drilling machine 2M112
What is and where is the machine 2M112
Machine 2M112, relating to equipment of the vertical drilling category, began to be produced in 1980 year. For a long period of its existence on the market, this device has gained enormous popularity when used in home workshops and workshops of small manufacturing enterprises. 2M112 machines, designed for desktop use, also included in the equipment of training workshops of schools and vocational schools, where young specialists are trained there.
Technical capabilities of the considered drilling machine allow to carry out a number of technological operations:
- drilling holes;
- reaming;
- deployment;
- countersinking;
- internal thread cutting.
Rotary vices can be installed on the machine's desktop
Material of manufacturing of details, machined on such a drilling machine, can be metal, plastic or wood.
Despite the simplicity of design, on the desktop drilling machine 2M112 the possibility of change of speed of rotation of the working cartridge on 5 stairs. To implement this function on the unit changes the position of the belt on the pulleys of the belt drive, which is done very quickly thanks to the special design of this site. Depth of drilling when working on the drilling machine 2M112 is also regulated quite simply - for this purpose the flat scale is used (or stops).
Belt transmission under the raised protective cover of the machine
Simple design provides the main advantages of the vertical drilling machine 2M112 - exceptional reliability and ease of use. There are this machine and the following characteristics, as compact dimensions (795х390х950 mm) and slight weight (120 kg), which allows you to easily move such equipment anywhere. Vertical drilling machine model 2M112 due to its compactness can be installed on the surface of a locksmith table, and on a special drill string or cabinet.
Characteristics and documentation of the machine
The main characteristic of any drilling machine is the maximum diameter of the hole drilled with it.. Using the machine model 2M112, according to the passport, you can get holes in the workpieces, whose diameter reaches 12 mm. Holes of this diameter are enough for that, to perform drilling work in a home workshop, but in production conditions on these machines drills of bigger diameter are established.
Technical characteristics of the machine
Below you can download the technical documentation for the 2M112 machine for free, namely the passport of the machine or the operation manual.
Passport of the desktop drilling machine 2M112:
Download
Cartridge of the 2M112 drilling machine, according to the passport, can rotate at speed 450-4500 rpm, while the speed of rotation of this site can be adjusted by 5 stairs. The B-18 spindle is installed on the machine, the distance from the end of which to the surface of the desktop can vary in the interval 0-400 mm
Desktop dimensions, on the surface of which there are three T-shaped grooves for fixing the workpiece or machine vise, are 250x250 mm
The surface of the desktop of the machine allows you to fix the clamps
To expand the functionality of the drilling machine can be installed on a special stand, that allows to use the equipment for drilling of openings in end faces of details, the length of which reaches 1000 mm. An electric motor with a power of 2M112 is used as the main drive device 550 W.
Despite the small size and not too high power, the table drilling machine of this model can be subjected to long and intensive operation. Such worthy characteristics are provided by simple, but effective device design.
In the home workshop, the 2M112 machine can be placed on a homemade metal cabinet
Features of machine design
Even the photo of the vertical drilling machine 2M112 can be understood, how simple a design he possesses. So, constituent elements of this unit are:
- column, on which the spindle headstock moves in the vertical direction;
- device, which provides a clamp of a spindle headstock in necessary position;
- drive electric motor;
- mechanism, which is responsible for lifting the spindle headstock;
- base plate, the upper part of which is used as a desktop;
- shroud, which provides protection of the drive mechanism;
- spindle head;
- mechanism, responsible for tensioning the drive belts;
- bracket, in which the basis of a column is fixed.
The main parts of the machine 2M112
Constructive elements, which provide convenient and efficient control of the parameters of the drilling machine 2M112, is:
- lever, which is responsible for the manual feed of the spindle;
- lever, by means of which the necessary tension of belts is provided;
- lever, used to fix the spindle headstock on the column;
- electric buttons, by means of which start and stop the driving electric motor;
- lever, which is responsible for fixing the submotor plate.
Machine controls
Spindle unit of the desktop drilling machine 2M112
The manufacturer of the 2M112 drilling machine has specially mounted all the main mechanisms (spindle assembly and belt tensioning mechanism) in a cast iron case, to provide them with reliable protection against mechanical damage.
To ensure greater convenience of the operator in the design of the machine provides a system of lighting the processing area.
The machine control buttons can be located on the spindle head or at the bottom of the desktop, depending on the model modification
Advantages and disadvantages of the device
That fact, that the desktop drilling machine of the 2M112 model, whose design was developed more than thirty years ago, still can be found in the equipment of many manufacturing plants and home workshops, indicates that, that experts appreciate this equipment for its characteristics and benefits.
The popularity of the 2M112 vertical drilling machine speaks for itself, that even after a complete breakdown (which is extremely rare) users are trying to find a unit of a similar model, instead of buying cheap and low-quality devices from Chinese manufacturers or expensive European equipment.
In the electrical panel of the machine (combined with the control panel) everything is simple and minimalist
Among the most significant benefits, which has a drilling machine model 2M112, it is necessary to highlight the following.
- Thanks to a high working resource the machine differs in exceptionally high endurance and is capable to operate successfully even in the most severe conditions..
- Due to the simplicity of design, the device does not require complex care and special maintenance. Even self-disassembly of such equipment is not particularly difficult.
- In today's market you can easily find any spare parts and components for the 2M112 machine, therefore, there are no difficulties with the repair of such equipment.
- Electric motor power, which is equipped with this machine, quite enough for that, to meet the needs of the homemaker, and a small manufacturing enterprise.
- A significant feature of the 2M112 machine is the affordable price, which is optimally combined with its reliability, efficiency and ease of use.
The scheme of connection of the machine to a power supply network 220 volt
The vertical drilling machine of the considered model and shortcomings is not deprived, which are not mentioned in the passport. The main disadvantage of this equipment is, that it is already morally obsolete. Modern devices of this category, in the production of which new technological approaches and innovative kinematic schemes were used, exceed 2M112 in processing accuracy, efficiency and productivity.
The kinematic scheme of the machine consists of a minimum number of parts
Schematic diagram 2M112
This machine is inferior to new models also in the compactness and convenience of operation, but such minor shortcomings are offset by the affordable cost, reliability and unpretentiousness in service.
User reviews of the machine 2М112
To get a complete picture of the drilling machine 2M112, enough to study a few reviews of those, who has already worked on such equipment and can objectively judge its characteristics and technical capabilities.
Belkin Igor
Bought this machine in almost perfect condition. Before that I had several Chinese desktop machines, so there is something to compare. At first, a little scared considerable size and decent weight, but all questions disappeared, when I started working for him. Compact and even skinny Chinese models, compared to this monster, as "Zhiguli" next to BelAZ. And the most pleasant: it works just as reliably, as BelAZ, drills and drills, rather than creating visibility, as many Chinese units. After a week of active use of such a device, I felt sorry for the money, which I had previously spent on the purchase of inexpensive drilling machines of foreign production. So, a little awkward, So, makes noise, but works like a bee. I think, that even my grandchildren will still be able to use it, if they need it.
Vorontsov S.
One look at the 2M112 is enough, to understand, that it is truly a working machine. Massive, a little awkward, but what do you want: this model has been around for decades. If you compare it with budget foreign devices, taking into account the efficiency of the equipment, then the latter clearly lose. On such a machine, I drill holes on the fly 12 mm in the 45th steel, and if we talk about reaming, then personally I used drills and 25 mm, pre-drilling their shank in diameter 14 mm I got sick with this machine then, as a friend in the studio tried to work on it. Finally bought this device for myself, which he never regretted in six months of operation.
Alexey V..
I inherited this machine from my father - it was in the workshop, undeservedly forgotten in the corner. After simple repairs (the engine burned out) and a small prevention began to actively use it. There were periods, when he did not turn off the machine almost all day, which did not affect his ability to work. Initially used this unit as a backup, but in the end I do almost all the drilling work on it, because I'm sure: he will not let me down. If you are looking for reliable and trouble-free drilling equipment for little money, then choose this model, you will not regret it.
Peter, Kaluga
I met the 2M112 machine at school, where we were taught to work on it. And when, many years later, the question arose of choosing drilling equipment for the workshop, without thinking, bought it. I have been operating in a rather intensive mode for almost three years now, he never let me down. Very simple design, the machine can always be disassembled for prevention, which takes very little time. This simplicity explains the reliability of this equipment, which is able to work around the clock (I haven't tried, but I think, that can).
Andrew, Ufa
I bought this machine quite by accident, the former owner asked for a very ridiculous price, so I bought. For three months he just stood in my workshop, until the main machine broke. There was nothing to do, quickly disassembled his new acquisition (good, that the design is simple), greased, collected, launched. Frankly, I forgot about the broken main machine, I don't even approach him, because this old man works no worse, and in many ways even better than many new models in the same category. Pleases not only simplicity, but also the reliability of the machine, and for me it is very important, if we talk about equipment, without which I simply can not do in my work.
