Important parameters of disc cutting machines for metal

This rating of metal mounting saws for 2020-2021 was made according to the estimates of specialists who work with such tools. There is no accounting for the number of sales or any abstract indicators from research centers, which for some reason are trusted the most. Probably, many gentlemen with academic degrees will call such an analysis amateurishness, but they don’t work with these saws.

In the production workshop of the enterprise Source morflot.su

Features of WEIYI machines:

1. Automatic cutting machine

Automatic cutting machines are designed to simplify the daily routine of preparing metallographic samples. Using the automatic cutting function, the process of cutting standard samples is significantly accelerated without loss of quality.

• All machines are designed and manufactured in accordance with EU health and safety standards.
• Automatic models are equipped with microprocessors that can use programmable steps for operation, including setting cutting parameters, adjusting the speed of rotation of the cutting disk, and others.
• These models provide a choice between manual and automatic cutting modes (depending on the model).
• Each machine comes with a cooling system.
• The machines have functions of self-testing, safety, and prompts to improve the quality of sample cutting.
• Each machine has an enhanced protection system, including emergency stop functions.
• The machines are easy to use, safe and reliable.

1. Manual cutting machine

Manual cutting machines are distinguished by their simplicity, reliability and low cost. The machines are ideal for use both in laboratories and in workshops and production facilities.

• All machines are designed and manufactured in accordance with EU health and safety standards.
• These models provide a choice between manual and automatic cutting modes (depending on the model).
• Each machine comes with a cooling system.
• Each machine has an enhanced protection system, including emergency stop functions.
• The machines are easy to use, safe and reliable.

1. Precision cutting machine

Precision cutting machines are designed for precise and accurate cutting of small samples of material without deformation. They are distinguished by high positioning accuracy, high quality of the cut surface, and ease of use.

• All machines are designed and manufactured in accordance with EU health and safety standards.
• The user can choose from low-speed and high-speed models, depending on the tasks.
• Serial cutting function available (depending on model).
• The machines are equipped with a limit switch, which allows cutting operations to be performed without operator control.
• Each machine comes with a cooling system.
• Each machine has an enhanced protection system, including emergency stop functions.
• The machines are easy to use, safe and reliable.

Page 1 of 11

Features of mounting saws

This tool is a compact, portable metal cutting machine. Unlike the previously discussed equipment, the cutting disc only works at a right angle, but you can change the position of the workpiece. For this purpose, the design of the mounting saw provides a clamp in the form of a vice, on which there is a device for setting the angle.

Classic saw - on the right; Cold cut saw - left

The main elements of the tools are a platform (base), a work table for the workpiece and a cutting disc (abrasive in the case of metal). The cutting machine is classified according to the type of drive. It happens:

• belt;
• direct.

The first option is preferable for reasons of durability and safety.
In order not to overload the engine during long runs, the belt begins to rotate, so the load weakens. Belt-driven machines are more expensive than their belt-driven counterparts, but last much longer. For example, a Makita 2414 NB cutting circular saw with direct drive costs from 11 thousand rubles, while a Kraton COS-2200/400 with a belt drive will cost the consumer almost 25 thousand. Many parameters of both products are similar - power 2000 and 2200 W, disk diameter 355 and 400 mm, cutting height 137 and 140 mm, respectively, but it is the type of drive that is the decisive factor in determining the price. The conditional division of assembly saws into household and professional ones occurs according to two criteria - equipment power and drive type. Thus, a tool with a direct drive is considered an amateur one, while a tool with a belt drive is considered a professional one.

A classic mounting circular saw for metal differs in operation from a pendulum saw. The following are some equipment features that the user should be prepared for before operating.

1. When cutting a workpiece at an angle, it may move. As a result, the disc can damage the product frame. To avoid this, it is recommended to use an additional clamp to secure the workpiece in a vice.
2. Starting up equipment is accompanied by a strong shock - you need to be prepared for this.
3. An assembly cutting machine is a very noisy unit, so when cutting metal (especially for a long time), you should use earplugs or headphones.
4. At the end of the work, a thin burr appears on the workpiece at the cut site, which can be easily cut off with a regular grinder. It is recommended to have it ready.

Features of straightening machines

It would be more correct to attribute the name not to the word “correct”, but to the word “edit”. This machine first straightens and then cuts materials supplied in a coil (laying products in a circle, figure eight or cylinder) or on a reel. These include:

• strips of thin sheet metal;
• wire;
• fittings;
• rods of various sections.

In addition to the basic elements, the cutting machine has an unwinder, a straightening unit and a guillotine-type unit. Together, they provide a device for straightening and cutting workpieces of various profiles, and very accurately with minimal roughness of the cut surface.

Straightening and cutting machine SMZh-357

Straightening machines are not used at home and are exclusively professional equipment. They are in demand in metallurgy, construction, mechanical engineering, industry, and are used for large-scale production.

For example, below are the characteristics of the SMZh-357 machine:

• the maximum diameter of cut smooth-profile surfaces is 10 mm;
• straightening speed - up to 90 m/min;
• rod length - up to 9 m;
• power - 16.6 kW;
• weight - 1.9 t;
• Dimensions - 2093 x 330 x 932 mm.

The machine is based on the SM-759, has guillotine lever knives with a cam drive. Mounted on a welded metal frame, it is stationary.

Rules for working with equipment

Any saw for cutting metal works on a general principle, so the tips are universal for all types of tools.
The first thing you need to do is install the unit in a well-lit place with exhaust ventilation and away from fuels and lubricants. The base must be solid; vibrations or rocking of the installation are unacceptable. Observe the instructions in the technical data sheet regarding network load, grounding, etc. In order for a metal circular saw to serve for a long time, it is important to choose the right working element. There are two groups of disks:

• abrasive (made from fiberglass mesh, suitable for cutting ferrous metals);
• diamond (the base is steel, at the end there is an abrasive mass of diamond chips; they are used to cut hard grades of steel).

Below are the key principles of working with machines:

1. The workpiece is tightly fixed in a vice/on the work surface.
2. Changing or initial installation of the cutting disc is carried out with the engine turned off and the machine completely stopped. The same applies to changing speeds for devices with a belt drive.
3. Discs for working with material must be suitable in size for this model.
4. Apply pressure on the workpiece smoothly, without increasing the force.
5. After completing the work (cutting the workpiece), the cutting element remains in the lower position, and after the disk has completely stopped, it rises.

The brief overview of metal cutting machines presented above gives a general idea of ​​the products on the shelves, allowing the user to navigate the cost. Obviously, an electric model is preferable to a manual one, and a pendulum tool with a lever will take less effort to work than an angle grinder. Therefore, it makes sense for a novice master to become more familiar with the mentioned models.

Makita, Bosch, Sturm, Interskol are manufacturers whose assembly saws are in demand on the Russian market. Among larger devices for production purposes, the domestic manufacturer is in the lead - cutting machines SMZH, SPR and others are excellent and durable assistants in production.

If the topic discussed is close to you, you can write in the comments your review of any model, give advice on the operation of cutting machines, or supplement the material. In this way, you will help the project and novice craftsmen.

How to choose a saw for home use

It is very difficult to competently resolve this issue without having the knowledge of a master. When customers come to a store, they often hear consultants praising the products offered at high prices. At the same time, sellers are silent about the fact that the advertised model has limited functionality and capabilities that will not be used by consumers in everyday life. Therefore, it is important for any home craftsman to know what characteristics should be taken into account when choosing a cutting saw for metal.

1. Cutting depth. Since the machine is intended for domestic purposes, 60-70 mm will be sufficient. For professional models, this figure can reach several hundred millimeters. You need to focus primarily on the type of material you plan to work with. So, for a support channel it will be 120 mm, and for a beam - 200 mm.
2. Control automation. It will be very difficult for a saw designed to cut PVC pipes to cope with a metal channel, so when trying to do this, the load on the tool will increase by an order of magnitude, which will certainly lead to a decrease in speed. But if the machine is equipped with an electronic system, it will not allow the disk rotation speed to decrease and will ensure high quality processing.
3. Smooth start. This option will protect not only the machine itself, but also all other working household appliances from power surges and breakdowns due to short circuits. Unfortunately, not all models have this function. And if you were unable to find a saw with a soft start, then you will have to arrange a separate entry into the house or turn off all the devices working inside.
4. Overload control. The device responsible for this will not allow the saw to burn out due to the loss of time by the owner. If such a situation occurs, the belt drive will begin to slip, which is guaranteed to reduce wear on the saw.
5. Type of cutting disc. For machines of this type, manufacturers produce two types of discs - cutting and dust. The latter is more reliable because it has a pobedite coating.

To select the most suitable model and decide on the functions that should be present in it, you must first proceed from the task at hand. After all, it often happens that a home craftsman does not have such a large amount of household work planned that, in order to quickly complete them, it is worth purchasing an expensive saw for cutting metal, which he can use only a couple of times. For repair work, there are also more affordable solutions - grinders and electric jigsaws.

Review

Professional craftsmen regularly monitor the appearance of new products on the construction equipment market and can easily identify worthy of attention . Moreover, their choice is largely determined not by personal preferences, but by the technical characteristics of a particular model.

1. Portable disc cutting machine for metal 2414 nb. You can buy this machine for 11,000 rubles. The weight of the device is 16 kg, the overall dimensions do not exceed 600 mm, the working tool can be positioned at an angle from 15 to 45 degrees, a mechanism that limits the start is used as protective devices, a wide protective casing, and the body and cord are insulated.
2. Vertical assembly saw Makita 2414 nb. Supports operation from a regular home network. Locking systems are provided to prevent the device from being turned on in case of inadvertent pressing; the design uses a fixed shaft. The mode of direction of movement of the cutting unit set by the manufacturer allows the device to cut materials at an angle of 90 degrees vertically. A positive point is the presence of a transparent screen that protects the technician from sparks. The price in stores starts from 36 thousand rubles.
3. The Dewalt mounting saw is no less in demand. Although it has less functionality, this does not in any way affect its performance and efficiency. The device weighs 20 kg, while its dimensional characteristics do not exceed 500 mm. This metal cutting machine does not have a soft start, so in the event of voltage fluctuations, the device may fail. To prevent such accidents, you need to make a separate entry. It is best if it is located in the garage and not in the local area. The manufacturer has set a price for this device at 12,500 rubles.

Before receiving the finished product, the workpiece must go through a number of stages, which involve carrying out certain technological operations with it. One of them is cutting, which allows you to give the future product the necessary dimensional characteristics at a preliminary stage. This operation can be performed with the highest quality only using specialized equipment.

Metal cutting machines are one of the most popular types of equipment used to perform this type of task. They are distinguished not only by high reliability, but also by precision processing. After cutting, the workpiece not only has dimensions exactly corresponding to the drawing, but also has a smooth edge, which makes it safe to use at subsequent production stages.

Cutting machines, like any other industrial equipment, have certain characteristics that determine their purpose. Some can most effectively cope with the task of cutting only a certain type of material, which must be taken into account when choosing. By studying the features of a cutting machine before purchasing, you can learn about its capabilities in order to subsequently make the most of its potential.