Comparative characteristics of the ten most common electronics models. Their capabilities, scope of application, main nodes.
Portable electrical hacksaws capable of sawing various materials even in hard-to-reach places demonstrate true multifunctionality. So that you can appreciate their capabilities, we present the Ten most common models
The Japanese company Makita, whose ideas later began to use other manufacturers, in 1982 he released a professional electronics to the world market for construction, water and gas pipelines, works with sheet metal. This tool very quickly gained popularity, as it turned out to be indispensable when sawing a wide variety of materials, and often in hard-to-reach places. Its originality, the reciprocating movement of the hacksaw blade along the axis of the car, the form of which resembles some types of professional drills - all this has served for the greatest ease of use.
Since then, a family of multifunctional electro-states has undergone a greater evolution, for example, with the invention of the pendulum movement of the canvas. This innovation was invited in 1985 by Bosch (modelFZ550). The swinging movement in combination with the reciprocating movement of the havice canvase made the work even easier, reduced to the minimum of the Master's effort. In 1987, Bosch releases a second model of a multifunctional saw, now electronic, - PFZ550PE. After two years, BlackDecker opens a new direction of electronics, releasing the Alligator to the market - a saw with two hacker canvases, which make a reciprocating movement of each other along the axis, which ensures the possibilities corresponding to the mechanical transverse saw during oak sawing. In 192, Bosch, in turn, creates a "tandem" model with a reciprocating movement of two canvases, allowing to cut without prior inspired at the beginning of the process. AB 1993 There is a small multifunctional boschpms400 hacksaw, designed for finishing works.
Scope of application
First of all, the possibilities of hacks are determined by the attached set of replaceable instrumental nozzles. Some of the hacksaws there are a huge amount: short and long, courageous teeth, steel and non-ferrous metals, with medium or large teeth, according to synthetic materials, plasterboard or dry-fiber plates, foam concrete, brick, etc., dry and raw wood. But if the tool is depends on the manufacturer (Bosch and Metabo are produced by 28 and 22 models, then the fastener system is the same: to spread the gripping cheeks of the blade holder, the universal key is used, which is suitable for all models. The exceptions are electribaling the PMS400PE models and the PFZ1300AE of the Bosch company. The SDS system is used (SPECIAL Direct System or the nozzle shift system without the use of additional devices), which resembles a jigsaw system. It allows you to establish, besides hacksaws, a variety of files, metal brushes, abrasive nozzles, etc. As for the second model with the reciprocating movement of two hacksaws, it uses wood canvas, for plastics and for foam concrete.
For rough treatments, all the types of these hacks have a limitation of the length of the canvas, a maximum of 300mm, which varies from the return and progressive movement depending on the model. For better processing, work with a thin material and, therefore, use shorter canvas. Attility of the recommended speeds, located on the tool housing, will facilitate your work.
| Cutting pipes- one of the applications of these tools. When working with metal, a small amount of lubricant helps the blade better function. To work with PVC, in addition to changing the blade, it is necessary to set the desired speed on the electronic regulator. |
| Plasterboard and dry-fiber plates, foam concrete partitions are sewn with a special blade, as they are sufficiently abrasive for the teeth of a simple blade. For corrugated fiber cement materials, sheet metal or plastic, use a special stop, which allows you to press the knife to the material. |
Main nodes
Electribon-consumed power is usually indicated on its housing, it is desirable that the output power is also indicated. It is expressed in watts, it reflects the real mechanical force that each tool can develop. Winstructions to e-mails of some stamps This information is missing an electronic speed regulator, which is in all represented models, except for the "Alligator", works in two modes. For the first mode, you can vary the speed, without interrupting the work, up to 70% of its maximum value, and then immediately move to the maximum speed by pressing the jacking until it stops. In the second mode, the speed can be smoothly changed during operation from the minimum to maximum values. Consider more differences. Some regulators allow you to change the speed and hold it constant, regardless of the accompanying effort, while others provide a reduction in the speed during engine overloads. For example, in the instructions for electribals, Bosch and Metabo are always indicated by these features in changing speed.
The pendulum movement in different modes changes the depth of teeth insertion depending on the sawn materials. With each idle during the reciprocating motion, the canvas automatically retires from just a sawn place, thus reducing heating from friction and facilitating the removal of sawdust. The work goes faster and tires less, since it is not necessary to push the hacksaw strongly. In addition, with this mode of operation, the service life of hacksaws is increasing.
The position of the stop (or blade stop limitator) can be adjusted by the displacement of the back and forth along the hashes axis to provide the desired cut length. If there is also a turn of the stop, then you can limit the tool's move in almost any form of material and at any position of the cut.
When performing coarse sawing works for convenience and safety, it is very important that the hacksaw is comfortable to hold in hand. In addition, it is necessary to wear protective gloves.
During the testing of electronics at idle, using the GeneralRadio sound level meter of Model1563, the noise level was measured. The results showed that when sawing it is necessary to use protective headphones.
Care of electronics
These saws practically do not need to care. After using them in very harsh environments, you can slightly lubricate with an oil with a hacksaw blade. You will appreciate direct access to the engine brushes, which is provided for by some manufacturers. Bosch, Elu, Makita, Metabo and Ryobi include a plastic or metal box in the price of tools, which, of course, is much more convenient to store electrons along with the tool nozzles and accessories.
| The electronics with the reciprocating movement of the blade allows smoothly to cut the large surfaces without resorting to the preliminary drumsion of the holes or to the preliminary inscription at the beginning of the process. |
| This type of hacksaws is indispensable for construction work: it can be very smoothly cutting even long blanks, bars or boards. This is the perfect tool in the manufacture of bearing structures. |
| Bosch. PMS 400 PE AC | Bosch. PFZ 550 PE. | Metabo. PSE 0525. | Blackdecker. KS 575 E. | ELU MSS 810 EK. | Makita. JR 3000 V. | Metabo. PSE 1027. | Ryobi. RJ 100 AV. | Blackdecker. KS 385. | Bosch. PFZ 1300 AE | |
|---|---|---|---|---|---|---|---|---|---|---|
| Power consumption | 410 W. | 550 W. | 500 W. | 710 W. | 810 W. | 590 W. | 1010 W. | 710 W. | 1020 W. | 1300W. |
| output power | 210 W. | 340 W. | 310 W. | Sorry | Sorry | Sorry | 570 W. | Sorry | Sorry | Sorry |
| Safety | Blocking gashet | Safe inclusion | Blocking gashet | Blocking gashet | Blocking gashet | Blocking gashet | Blocking gashet | Blocking gashet | Safe inclusion | Safe inclusion |
| Convenience of the handle | average | Excellent | average | very comfortable | very comfortable | Excellent | very comfortable | average | very good | Excellent |
| total length | 340 mm | 380 mm | 395 mm | 420 mm | 445 mm | 410 mm | 475 mm | 400 M. | 320 mm | 300 mm |
| Length of the blade | 16.5 mm | 26 mm | 25 mm | 29 mm | 29 mm | 30 mm | 27 mm | 26 mm | 38 mm | 50 mm |
| Number of movements per minute | 0-3800. | 500-2600. | 500-2500. | 0-2400. | 0-2400. | 0-2300 | 700-2400. | 0-2300 | 3300. | 0-2600 |
| Pendulum traffic | 3-section | 3-section | 4The following | not | not | not | there is | not | not | not |
| Electronic speed controller | there is | there is | there is | there is | there is | there is | there is | there is | not | there is |
| Blind stop time | 2sek. | instantly | 3 sec. | 3 sec. | 4 seconds | 3 seconds | 3 sec. | 4 seconds | 2 sec. | 3 sec. |
| Adjusting the stop | Without additional tools | universal key | screwdriver | not | not | universal key | universal key | universal key | Adjustment of the handle: no | Adjusting an additional handle: in different directions |
| Sawing capabilities | Wood - 65 mm, Steel - 6 mm, Aluminum -15 mm | Wood -150 mm, steel -12 mm, Aluminum -15 mm | Wood -110 mm, steel - 6 mm, Aluminum - 10 mm | Wood -115 mm, steel - 8 mm, Aluminum - 10 mm | wood -120 mm, steel - 8 mm, Aluminum - 10 mm | wood -120 mm, steel - 8 mm, Aluminum - 10 mm | wood -120 mm, Steel - 6 mm, Aluminum - 10 mm | Wood -90 mm, steel - 8 mm, Aluminum - 10 mm | Wood - 300 mm, Cheat concrete, gypsum - 300 mm | Wood- 300 mm, Cheat concrete, gypsum - 300 mm |
| Length of cord | 2.51 M. | 4.01 M. | 2.49 M. | 3.91 M. | 2.41 M. | 2.63 M. | 3.79 M. | 2.10 M. | 4.06 M. | 3.91 M. |
| Replacing the instrumental nozzle | SDS system | universal key | universal key | universal key | universal key | universal key | universal key | universal key | universal key | SDS system |
| Weight | 1.4 kg | 3 kg | 2.8 kg | 3.1 kg | 3.4 kg | 2.9 kg | 3.8 kg | 3 kg | 4 kg | 5 kg |
| Noise level | 94 dB. | 92 dB. | 95 dB. | 101 dB. | 92 dB. | 91 dB. | 93 dB. | 97 dB. | 103 dB. | 101 dB. |
| Pros and cons | PROS: Sale in a suitcase from PVC along with accessories; SDS system for quick blades shift without a special tool; adjustment of the bracket without a key; pendulum movement; electronic speed controller; A set of accessories that significantly expand the capabilities of the tool. MINUSES: Mobile switch with a locking cut is difficult to switch hand, especially in the "Stop" position. | PROS: Pendulum movement; relatively small price; electronic speed controller; Instant stop; swivel bracket, universal key fixed in the case; It is convenient to hold in your hands; Table in which the speed and type of blade are shown depending on the material. MINUSES: Mediocre machine equilibrium: the center of gravity is shifted to the front. | PROS: Pendulum movement; electronic speed controller; It is convenient to hold in your hands; Universal key attached to the cord; Table of selection of speed and mode of pendulum movement on the saw blade. MINUSES: Non-rotating bracket; It's not too convenient to keep the saw in the handle, as the center of gravity is shifted forward. | PROS: Electronic speed controller; good balance and very comfortable handle; rubber protector; relatively low price; Through a bracket that allows you to see the place of sawing and ensuring safety. MINUSES: Non-rotating, not protected from dust and non-adjustable bracket; Increased noise. | PROS: Electronic speed controller, good balance and very comfortable handle; high power; Double Motor Isolation; Low vibration; Very durable through bracket. MINUSES: Non-rotating and not adjustable bracket; Pretty long stop of the blade; Not enough long cable. | PROS: Compact machine with a very comfortable handle and magnificent equilibrium; profiled head; The easiest saw in your category; turning bracket; Very good protection against dust rubber sheath; The least noisy. MINUSES: The electronic speed controller button does not have a notch, is located at the top of the gay and it is difficult to access. | PROS: Pendulum movement; The electronic controller button is located separately from the gay; heavy duty machine; unscrewing handle that can be brought to one or another; speed table; Universal key fixed in the case. MINUSES: The variator button does not have a notch, although it is located independently and convenient for switching; non-rotating bracket; Large size and weight. | PROS: The button of the electronic velocity controller with notches has 40 adjustment parameters; The rubber protector well covers the head of the piston and the blade; The smallest length in this category. MINUSES: The gay and blocking is not very convenient to press with your finger; difficult access to the speed controller, located at the top of the gay; Pretty long stop of the blade; the thick front part of the housing, for which they are inconvenient to hold on hand; Too short cable. | PROS: Lightweight machine with good equilibrium; almost does not vibrate; inserted universal key, very clear schemes; Fast stop; Long cord. MINUSES: High noise; No electronic speed controller; not easy blade replacement system; The handle is not regulated. | PROS: Electronic speed controller; SDS system that allows you to change the blades without an additional tool; very comfortable gasslet; adjustment forward-back and right-left front handle (perfect for left-handed); Free blade with suction system. MINUSES: Pretty heavy and noisy car. |
Finally
The PMS400PE Special Electric Hoven is a Bosch-tool, ideally adapted for a wide variety of heavy work: sawing, processing with a file and alignment of the surface.
Very reliable tool, boschpfz550pe, shows excellent qualities due to a circular pendulum movement and electronic speed control during sawing, while not too much energy is consumed, and the price of this model is simply out of competition. The electronics of Metabopse0525 has the same opportunities, but it is much more expensive, despite the fact that it is not too comfortable to hold in his hands.
Despite the high price, Makita products are bribed with their ease, the lowest level of noise and the most comfortable handle. It is a pity that they have no pendulum movement. The same flaw and the products of the BlackDecker company, besides, its saws are quite noisy, although they are offered at a tempting price. Ryobi models consume relatively slight energy and are designed for the most difficult work, but have a not too convenient speed regulator.
ELU saw has a very comfortable handle, uniform weight distribution and greater power. But she is quite the road. Like Metabo, PSE1027, very powerful, but far from cheaper, which makes it available only for large construction.
The firstborn of a different direction of electronics, "Alligator" over the years has not been much evolved compared to its competitor "tandem". Among the advantages of the latter, it is possible to note the system of rapidly changing instrumental nozzles, the electronic speed regulator, the exposable emphasis and dust system. But the "tandem" is heavier to 1.3kg, which is important.
The editors are grateful to the head of the Bosch Training Center Shorin Konstantin Yuryevich for help in preparing materials.