Machine for cutting metal tape. Types and purpose of band saws for metal

Band saw for metal is designed for continuous cutting of round steel, pipes of various diameters, angles and channels made of non-ferrous and ferrous metals. High efficiency and quality of metalworking is ensured through the use of band blades made of heavy-duty steel and reinforced with cobalt or hard alloy inclusions.

Band saws for metal have a wide range of applications. They are in demand both at industrial enterprises and in small workshops, school workshops, and service stations. Often cutting is done at right angles. Band saws for metal, equipped with a rotary frame, are able to cut workpieces at an angle.

Classification of band saws according to the degree of equipment automation

• manual type machines, in which the lowering of the saw frame is carried out using the operator's muscular strength, and the equipment is returned to its original position by a spring or hydraulic drive. Installation, fixing in the vise of the workpiece is also carried out by the operator of the equipment.
• semi-automatic band saws automatically lower the saw band onto the workpiece, return it back, and fix it in a hydraulic vice. The operator only needs to manually feed the workpieces. The most common type of band saws due to the optimal ratio of price and functionality.
• automatic equipment used for serial production of cutting blanks according to a program specified by the operator. Mainly used in large industrial enterprises for cutting various profiles, pipes in continuous mode.

Main characteristics

Before buying cutting equipment, we recommend evaluating the main parameters of the selected units:

• power;
• maximum allowable dimensions of parts;
• angle of rotation of the working unit;
• saw characteristics;
• cutting and feeding speed of the workpiece;
• cutting width in the transverse direction;
• cut size;
• maximum length of cut blanks;
• weight and size parameters of machine equipment;
• its cost.

In our online store, band saws for metal are available at the most favorable conditions in Moscow. Direct cooperation with leading manufacturers of the industry allows us to form an acceptable price, guarantee the original quality and long working life of band saws for metal. We provide a 1 year warranty on all units.

The company "Rustan" is a reliable supplier of machine tools of Russian and foreign production.

The band saw machine is designed for cutting profile and sheet blanks from various kinds steel, non-ferrous metals, cast iron on products of a given size at a given angle. Batch cutting of blanks is possible in case of a small section. The cutting part is represented by a closed saw blade band with carbide teeth. Band saws for metal in our catalog are represented by the brands MetalMaster (Asia). Band saws are designed for high-performance cutting of all types of metal used in modern mechanical engineering, including high-alloy and heat-resistant steels, hard-to-cut alloys. The use of a band saw machine allows you to optimize metal consumption by reducing the width of the cut, increase productivity and reduce the cost of consumed electricity. Band saws Metal Master (China) and Pilous (Czech Republic) are widely used in mass and serial production. TAPKO-M specialists help you make the right choice of a machine that most closely matches the tasks of your production.

Video: band saw for metal MetalMaster PT

The production of band saws manufactured under our MetalMaster brand is located in Asia. TAPKO-M engineers are always present during acceptance finished products, so we guarantee our customers the high quality of all machines. We also have the opportunity to optimize production costs and the cost of band saws for metal. The price of a band saw from TAPKO-M is always optimal for any client, because we are ready to negotiate your personal discounts and provide convenient payment terms. It is very simple to buy a band saw machine: study the information in this section of the site, call to clarify your price and find out other interesting details of the sale of band saw machines.

How to choose a band saw for metal?

If you want to buy band saw inexpensive but reliable technical specifications, you should get rid of stereotypes. Because we actively encourage all customers Russian market machine tools for metal to buy and use Chinese band saw machines. China is the birthplace of the most ancient civilization, the mother country of many technologies - porcelain, tea, thermoses, cotton products. The Chinese are real hard workers. This is the highest rate of their development in the last decade. Collaborating with major manufacturing companies China, we confirm the reliability of all our partners and vouch for the quality of the equipment. Metal cutting with a band saw made in China under our MetalMaster brand will be guaranteed to be of high quality and flawless. Well, if your current budget does not allow you to purchase a new machine yet, you can always look for machines in the secondary market. Seeing the ad: "I will sell the band saw machine", - specify its trade mark. If it's MetalMaster - you can take it!

Cutting on a band saw can be manual, semi-automatic and automatic. Such broad opportunities are represented by our supplier of vertical band saws and MetalMaster horizontal band saws, which are no less in demand in the production.

The increase in importers of vertical metal band saws in our country has led to a problem right choice band saw cutting machine on the Russian market.

The selection of band saw equipment must begin with a clear definition of the production task. You should understand the type of product that you want to get as a result. Hence, technical specifications machine are determined based on the task, due to the size of the workpieces being processed, the brand of material and its physical properties, the required capacity and equipment load factor.

Modern industrial enterprises increasingly use high-tech equipment. This is due to both the active pace of development of science and technology, and the need for their implementation in practice. One of the clearest examples of equipment of this level is a band saw for metal, which will be discussed in this article.

What is a band saw

The band saw machine, which belongs to the category of high power equipment, can be used to cut not only metal, but also wood, polymer and other materials. Remarkably, with this equipment you can get not only straight, but also curly cuts. As is already clear from the name of such a machine, the cutting tool in it is a band saw, which is a closed-type metal strip on which the cutting teeth are located.

Band saws for metal are equipped with several pulleys (2 or 3) that form a closed loop along which the band with teeth moves. The big advantage of such machines is a significant service life of the cutting blade, no need for frequent replacement, which is ensured design features equipment and the continuity of movement of the cutting tool.

The main characteristics of a band saw - its performance and efficiency - determines the power of the electric motor used in it, which drives the pulleys. The same parameter is the main criterion when choosing the type of cutting blade. Band saws are highly safe for operators working on them. It is ensured by the fact that the movement of the cutting blade is always carried out towards the working table and the material being processed, due to this, the ejection of the workpiece towards the person cannot occur.

Despite their high power, band saws are compact, and models for use in private workshops are also light in weight. It is quite possible to install them on your own, without using special lifting equipment. As the advantages of such equipment, it is worth noting the low noise level that a high-quality tape fabric emits.

Regardless of the model, any band saw machine consists of the following structural units:

• frame;
• drive mechanisms;
• node directly responsible for cutting;
• mechanisms for loading and feeding blanks to be cut;
• control system of equipment mechanisms, including electromechanical and hydraulic components.

The principle of operation and capabilities of the band saw

The main element of the drive mechanism for most models of band saws is a belt that is pulled over two flywheels. The belt starts to move immediately after turning on the machine - from this moment it is already possible to load the workpieces and cut them.

The band saw for metal is designed in such a way that during the cutting process, an even distribution of pressure on the workpiece is ensured, which makes it possible to obtain very accurate cuts with such equipment. It is convenient that cutting with a band saw can be performed both perpendicular to the axis of the equipment and at an angle not exceeding 60 degrees. Obtaining a cut at an angle is provided either by changing the position of the cutting blade itself, or by turning the movable frame on which this blade is fixed, or by turning the desktop.

During operation, the cutting blade becomes very hot, which can eventually lead to its failure. To prevent this from happening, a cutting fluid (coolant) is supplied to the cutting site, which not only protects the working blade from rapid wear, but also prevents metal dust and sawdust from entering the ambient air. The liquid can be ordinary water or special compound, providing not only cooling of the tool, but also its constant lubrication.

Some companies involved in the production of band saws equip their models with special brushes, with the help of which the working blade is constantly cleaned of metal chips and dust. Thanks to this simple addition, it became possible to obtain a more even cut, provide reliable protection for the operator, and significantly extend the life of the tool.

A band saw for metal can be equipped with saws of several basic types:

• from carbon steel - for cutting non-alloyed and alloyed alloys;
• from bimetallic alloys, which are used for special cutting conditions;
• from carbide materials - for cutting metals that are difficult to process (cast iron, alloys with a significant content of titanium, nickel);
• with diamond coating - for cutting abrasive materials.

Design and types of band saws

All band saws, regardless of trademark and countries of production, are divided into several main categories.

Cantilever or pendulum type equipment

The saw frame of such machines is made in the form of a console, the rise and fall of which is ensured by its rotation on a special hinge. Equipment of this type is mainly used for cutting pipes of various profiles, solid and long products. Cantilever band saws can be equipped with a fixed or rotary table (for straight or bevel cuts), be manual, semi-automatic or automatic.

Machines with one, two racks, equipment of portal type

In single-column (column) band saws, the horizontal saw frame is lowered and raised by moving along a guide fixed on one rack. There are two such guides in two-column (two-column) machines, and they are fixed on two racks located on both sides of the desktop. Obtaining cuts at an angle in such band saws is ensured through the use of rotary work tables. IN portal machines for cutting workpieces that are large and made of hard-to-cut materials, the desktop is rigidly fixed, and all the necessary movements are performed by a movable portal in which the saw frame is placed.

Vertical machines

A manual vertical band saw is the simplest representative of this category of equipment. The workpiece in these band saws is not fixed, but is moved manually during the cutting process. The saw frame in such machines is rigidly fixed in one position.

There are also vertical machines with a frame that can be positioned at different angles to the desktop. The workpiece in such machines is securely fixed on the desktop, across which the saw frame moves, set at the required angle.

Vertical machines, in which the frame can move both in the longitudinal and transverse directions, are used for cutting large-sized workpieces, the modes in them can be controlled using the CNC. Machine tools of this type are widely used in the production of molds and dies.

Horizontal Swivel Band Saws

In such machines, the saw frame can be installed at different angles relative to the workpiece along two axes. In addition, turning the clamping vice or the work table itself allows you to cut at the required angle.

Degrees of automation for band saws

Band saws, the production of which is established, including Russian enterprises may have varying degrees of automation.

Manual

The lowering of the saw frame, which is made in the form of a console, in such machines can be carried out either due to the efforts of the operator serving them, or the weight of the frame, then such machines are called gravity. To regulate the feed rate of the frame, ensure its rise and fixation at the starting point, a special hydraulic cylinder with a bypass valve, which is called hydraulic unloading, is used. The workpiece is fixed and marked by the operator, who also sets the speed of lowering the saw frame.

Manual machines are most often used in small industries. The advantages of such equipment include:

• low cost, ease of operation and maintenance;
• the ability to cut at an angle.

Manual machines also have a number of disadvantages.

• Ways of lowering the saw frame often do not avoid vibration during the cutting process, which significantly reduces the life of the cutting blade.
• In manual machines, it is often not possible to carry out visual control for the degree of web tension, and there is no mechanism for its cleaning.
• There is a need to regularly check and adjust the pulleys that drive the cutting blade.
• It is impossible to control and regulate the pressure exerted by the cutting blade on the part. The hydraulic cylinder in the mechanism for lowering and raising the cutting blade allows you to change only the speed of its lowering in a very small range.

The main area of ​​application for manual lathes is small productions where periodically there is a need to cut workpieces from tool or stainless steels and non-ferrous metals with a different cross-sectional profile.

semi-automatic

In semi-automatic band saws, the following are automated: technological operations: lowering and raising the saw frame, clamping the workpiece in a vise and releasing it after the end of the cutting process. The task of the operator when operating such a machine is only laying the workpiece in the clamping mechanism. Cutting a workpiece in semi-automatic machines is as follows:

• automatic fixation of the workpiece after starting the band saw;
• cutting at a given speed, at which the pressure on the part and the force exerted on it are provided by a special hydraulic cylinder;
• automatic lifting of the saw frame and release of the workpiece after the cutting blade reaches the bottom of the cut.

Semi-automatic band saws, which can have single-column, double-column and cantilever designs, are used to equip small-scale production.

Automatic

To equip large manufacturing enterprises where there is a need to cut a large number of the same type of blanks, automatic band saws for metal are used. Such machines, which can be single-column, double-column, cantilever, vertical and portal type, allow you to automatically perform the following technological operations: fixing the workpiece in a vice, lowering and raising the saw frame, changing its angle and turning the table, adjusting the cutting force, pressure and feed speed of the saw frame. If necessary, such band saws can be switched to manual control mode.

Automatic machines can work in three shifts and perform the same type of operations (cutting long workpieces into fragments of a given length) without the presence of an operator.

Cutting metals with a band saw is an efficient and virtually waste-free method of metalworking. Unlike gas, plasma and even laser cutting, a band saw for metal leaves a very thin cut (no more than 1-1.5 mm), does not overheat the metal, additional processing of the cut is not required. There are several types of belt-type machines for cutting metals, which differ in scope, technical capabilities, and dimensions.

The tape machine is based on the use of an endless (closed) metal tape as a working tool, with teeth cut on one side. Most often, bimetallic saws are used, in which the main part is made of strong steel (spring or similar in elasticity and strength), and the teeth are made of tool steel or high strength alloys.

The band saw is driven by pulleys, one of which (lower) is connected to an electric motor. The peculiarity of the movement of the saw in the direction of the workpiece eliminates the ejection of sawdust or parts of the tape when it breaks in the direction of the operator. This determines the safety of the machine when cutting both flat sheets and complex profiled products.

Band saws are regulated by the speed of the band, which is selected depending on the type of metal. The saws themselves are made with different tooth shapes, interdental distances and sharpening angles. The design of most machines allows you to quickly change the saw blade if you want to switch to another type of metal or rolled products.

Equipment types

Band saw metal cutting is common both in large industrial enterprises and in medium and small workshops for the production or repair of metal-intensive machines and mechanisms. Band cutting is used and construction sites, for example, in the production roofing works, installation of ventilation, chimneys, boiler equipment.

Pendulum (console) machines

Cantilever band saws are the most common type of band saw equipment. Their distinctive feature is the presence of a rotary saw frame. It is mounted on a hinge and can be raised and lowered within 90 0 above the desktop. They are very convenient for cutting:

• pipes;
• corner;
• channel;
• stripes;
• square.

Often console band saws are used for cutting wood, frozen meat, fish, pressed boards, plywood. Their versatility and compact design determines their widespread use.

Pendulum machines are available in two main modifications - with a swivel console that allows you to cut metal at any angle, and non-swivel, allowing only a vertical cut. According to the level of automation, they are divided into:

• manual;
• semi-automatic;
• automatic.

The Jet band saw for metal is a prime example of a typical cantilever saw. The band saw can cut metal at an angle of ±45° and vertically. Workpieces are clamped with a special vice, the table can be installed in two positions, the console and material supply is hydraulic. Equipped with Jet bimetallic universal tape. Enkor installations (Corvette) are not inferior to them.

Manual machines, such as the Bomar PULLDOWN, are portable and have decent power. They can cut metal at an angle of 90, 45 and 60 degrees. Diameter of blanks 2014 - up to 230 mm (circle) and section 260 x 230 mm (rectangle).

Cantilever band saws are produced in a wide range of capacities and dimensions. When choosing a machine, it is easy to find a model that suits your needs.

Single column band saws

Stationary automatic or semi-automatic column band saw is designed for sawing all types of rolled steel and non-ferrous metals at right angles. Some models are equipped with a turntable for miter sawing.

The saw unit with a horizontal saw moves vertically along the support column, advancing on the workpiece and sawing it at a given speed. Hydraulic feed allows you to adjust the cutting speed in a wide range.

Two-column (two-column) machines

Structurally, they resemble single-column ones, but cutting metal with a band saw is ensured by feeding the saw unit along two vertical guides. This eliminates blade deflection when sawing large workpieces and makes it possible to machine parts made of very hard alloys.

Some of the best double-column type machines are produced by the Czech company Bomar, for example, Bomar INDIVIDUAL, Bomar CONSTRUCTION. They are produced in automatic or semi-automatic versions, equipped with a hydraulic supply system, rotary tables, intelligent coolant supply system.

Double-column machines are characterized by increased rigidity of the structure, which gives high productivity and the possibility of using CNC. Due to this, they are widely used in the engineering industry. Often used as cutting machines.

Gantry band saws

The design of the saw unit is a rotating or non-rotating installation around a vertical axis. The desktop is fixed or rotatable. Portal vertical band saw for metal allows you to cut massive workpieces - castings, forgings, steel plates. The portal moves along the horizontal guides and approaches the workpiece. The hydraulic feed system allows you to adjust the saw pressure over a wide range.

Vertical machines

As a rule, a manual vertical band saw is equipped with a fixed saw unit, with the saw moving in a strictly vertical direction. Metal cutting on a band saw is carried out by feeding the workpiece manually, the pressure and feed rate are adjusted by the operator depending on the sawing conditions.

Widespread use of vertical manual machines manufactured by Ankor. They are known under the brand name Corvette. The universal band saw Corvette 33 can serve as an illustration of the capabilities of the machines of this brand. In addition to steel, aluminum, stainless steel and copper, it can cut textolite, plywood, wood, OSB boards.

The Corvette band saw is equipped with a 750 W asynchronous motor. It connects to a 220V network, which allows you to use the saw not only in industrial workshops, but also in small workshops or at home. Two gears that determine the speed of the belt make it possible to quickly switch to cutting dissimilar materials, which is important when used in small-scale production or in repair shops.

Band saw Corvette is equipped with an inclined work table with a slope range of 0-45 0 . The weight of the assembled machine is only 75 kg, which is very convenient for transportation, for example, when used in construction and restoration. The dimensions of the working table and the power allow processing parts up to 135 mm thick. To increase the degree of safety of work, the Corvette band saw is equipped with a magnetic starter, which excludes spontaneous start if the button is accidentally touched.

A manual vertical band saw can also be equipped with a tilting frame, but most often in a rotary version you can find a semi-automatic band saw. This design allows you to perform angular cutting of metal without changing the horizontal position of the table. This is true when processing large parts. It is convenient to cut channel bars, pipes, and complex rolled products on such machines.

Vertical Band Sawing Equipment industrial use It is also produced with a movable frame that moves along a large desktop. Tape machines of this type are used for the production of parts of the same type, and are equipped with CNC.

Gravity manual machines

This is a kind of cantilever-type machines in which the movement of the saw unit and the pressure of the band on the workpiece occurs under the action of its own gravity or the muscular effort of the operator. One of the varieties of band saw is a table saw, which is characterized by high precision in sawing thin workpieces. Good universal manual machines of this type are manufactured by Enkor.

The workpiece is clamped with a special vice and is in a stationary state, the saw unit moves. To prevent the feed from being too sharp, the console is equipped with a return spring. A hand band saw belongs to the cheapest type of metalworking machines, which in no way detracts from its merits. Some disadvantages in the form of low power or difficulty in adjusting the pressure on the workpiece are compensated by the mobility of the installation, its versatility and the ability to work with all types of materials.

How to choose

Having wondered how to choose a band saw, you must first decide on the range of tasks that it will perform. For a private workshop or a small workshop, a band saw for metal Jet, Bomar or Anchor cantilever type with a turntable or vertical, with an inclined frame is enough. For a home workshop, you won't find a better vertical saw. It will also come in handy for roofers - such saws cut corrugated board and galvanization perfectly.

Industrial production needs more powerful band saw equipment - one or two column machines with hydraulic feed. For large-scale production, it is best to pay attention to CNC machines.

Band sawing technology has long acquired the status of a reliable and popular method of processing metal blanks. Its main representative is the automatic band saw machine.

Automatic band saws for metal - a powerful and productive alternative to hand saws in conditions large enterprise. They are used for cutting metal profiles of various sections and sizes. As a rule, such machines interact with steel, non-ferrous metals and high-strength workpieces and, partly for this reason, they are so in demand at industry plants. With the help of a band saw machine, a part is obtained with a high quality of processing that does not require further adjustment. This significantly saves time and resources of the enterprise.

There are several types of band saw automation, each of which finds its user depending on the technological task and available budget.

• Level 1 automatic band saw, these are machines equipped with automatic feeding of the workpiece with the help of driven vise rollers to the limit sensor pre-set to the required length. The speed of rotation of the band saw blade, the lowering of the saw frame and the clamping-unclamping of the workpiece is carried out using a push-button control panel. The length of the cut workpiece in this case is constant.
• Automatic band saw machine with a PLC programmable logic controller, the length of the workpiece to be cut in this case is already set from the control panel and controlled by the encoder. These machines have a memory of up to 8 programs that can be set in the order you need. The feed of the workpiece here is also carried out using the drive rollers of the vise.
• There is also the following type of automation, this is an NC controller, or in other words - a “smart controller” with a memory of up to 99 programs, with a touch control display and a library of cutting modes. Such machines are already equipped with double discs, one of which is feeding, the second is clamping and fixing workpieces. This method of feeding has the highest accuracy and repeatability of cut products.

An important point is the type of machine design: cantilever, column or on linear guides. Console-type machines are used for cutting workpieces up to 450 mm and have a less rigid structure than a column-type one, which, in turn, due to the two support points of the saw frame, has more high level susceptibility to loads, especially when sawing solid material with a large section, and the durability of the machine. The portal type on linear guides has the same advantages, but high straightness and cutting accuracy are also added here.

Any type of band saw can be equipped with a hydraulic device for batch cutting of workpieces, which will significantly increase productivity when sawing small sections of metal.

The working bodies of the machine are made of reliable metal and cast iron alloys, which provide the band saw with structural strength and additional stability during operation (hard metals absorb unwanted vibrations).

The KAMI company sells automatic band saw machines for metal. The company's assortment includes a large selection of models, among which are units of both console and portal types. When choosing equipment, you should definitely look at the power - key feature automatic machine.