Ruchnyie disk pilyi

Etot the tool without which not to manage on house or summer residence building, name still a circular saw. raspila it surpasses other power saws in accuracy and cleanliness, especially if it is required to saw along a board and a bar. In manual disk saws high efficiency and sufficient manoeuvrability is combined.

The basic characteristic of a saw defining it capacity, dimensions, weight and the price, is maximum depth has spent on drink. On sale there are saws depth has spent on drink from 30 to 130 mm. But for household needs leading fims-manufacturers, as a rule, manufacture saws of three standard sizes: small saws with depth has spent on drink 40–46 mm, average – 50–55 mm and big – 65–70 mm. Last on properties and the price come nearer to a class of professional tools.

Competent choice

Saws of an average standard size are most extended. They do not require significant physical efforts at work and more manevrennyi, than big tsirkulyarki though concede to them in productivity, at them capacity of the engine and the maximum depth is less has spent on drink.

If you build the house and it is necessary great volume of works it is necessary to purchase the big saw – its productivity much above. Thus it is better to choose the big saw which can be established permanently is will facilitate work with thin boards or vagonkoy at internal furnish.

For work with thin materials the small saw approaches. Small on dimensions and weight, such saws are rather agile and easy. If necessary them it is possible to saw and thick boards, doing has spent on drink from two parties.

Choosing a saw from several models with identical maximum depth has spent on drink, pay attention to power consumption. It would be more correct to analyze given capacity, but not in each instruction or the prospectus there is such information. Given capacity less consumed, and a difference between them can reach at different models 35-45 of %. And the above capacity of a saw, the less efforts is required at raspile wood of firm breeds. A low-power saw at knot passage can jam.

The important parametre – frequency of rotation of a disk. The it is more, the it is easier to saw firmer materials. Unfortunately, in nameplate data only frequency of rotation or number of turn-overs idling while interest represents significance of this parametre at a rated load quite often is underlined, that is at pilenii wood with a certain conditional average hardness.

Some saws have function of immersing which is useful when longitudinal raspil it is necessary to make beginning not from a board end face, and, for example, from its middle.

Storage disk saws are intended, as a rule, for works with not so firm and not thick boards as have small capacity. The accumulator suffices approximately on 1 business hour, as much it and is charged.

For what we pay?

The electronic system of smooth start-up by which expensive and professional models are equipped, allows a disk to grow smoothly. Thus the protective casing departs smoothly, disk teeths do not twitch, running into preparation. And firm BOSCH has still supplied the majority of the models with a pendular casing and the roller of a supply allowing softly to begin raspil.

Besides, electronic control systems give the chance raspila to change in process number of turn-overs depending on hardness of a material. Such saws it is possible to saw soft materials and plastic as in them work on the lowered turn-overs of the engine is provided.

Electronics of expensive models supplies smooth start-up, management of number of turn-overs under load, the control of stability of number of turn-overs, protection against an overheat, indication of transhipment and indication of deterioration of brushes of the engine. Such saws have also system of fast braking and blocking of a spindle for convenience of replacement of a disk.

Many professional and household models are supplied by tap for vacuum cleaner connection. It is rather useful function, especially at work in the closed premises though and worsens manoeuvrability of a saw a little.

«Zubastyie» disks

Productivity of a saw is defined by its capacity, frequency of rotation at a rated load and a kind pilnogo a disk.

Disks tsirkulyarok differ not only external diameter and a landing aperture which at different saws can not coincide, but also quantity of teeths (from 12 to 110), and a material from which these teeths are produced.

Disks with usual teeths use for raspila plywood and wood of soft breeds, at work with DSP or firm wood they is fast tupyatsya. However, some firms-manufacturers for increase in service life of such disks put on them special cover.

Expensive disks with tverdosplavnyimi teeths are most practical more. They differ from each other quantity and the form of teeths, and also availability and orientation pobeditovyih napaek. Disks with small quantity of teeths (to 24) are optimum for finishing works, especially for longitudinal pileniya long boards. They supply good productivity, but not a choice quality raspila. Pure rezku make, as a rule, disks with number of teeths from 36 to 48. For raspila a tree of firm breeds, wood with a considerable quantity of knots, DSP or boards with nails use the disks having teeths with napaykami of the trapezoid form (usually them 54).

Cleanliness has spent on drink in many respects depends on frequency of rotation, sharpening and a kind of a disk and, to a lesser degree, from other characteristics of a saw. One of main indicators of convenience in operation – cross-section and longitudinal equation of the tool, in other words, absence of a warp in the centre of gravity. The bias causes excessive pressure, weariness, creates inconvenience, as a result reduces productivity and safety. The longitudinal bias, unlike cross-section, is completely extinguished at work to two hands.

The important indicator – convenience of grab of the forward handle on which controllability of a saw in many respects depends. More conveniently the spherical handle – she allows to keep a saw practically in any position that you will not tell about the handle of the cylindrical and angular form.

Advice

At purchase of a disk pay attention for its external diameter and diameter of a landing aperture. They should coincide with similar diameters of your saw.

If the saw is necessary for fulfilment of exact joiner’s works, it is better to choose model with a link sided design is allows to look through without hindrances a line raspila.

Experience shows, that badly balanced or with inconvenient tightening screws the tool tyres more fast, reducing to minimum all other advantages of a saw. And the unsuccessful design of a mobile protective casing creates at times safety threat.

Recommendations

Service life of a disk saw in many respects depends on quality of sharpening of a disk. It is especially important for low-power models. The stupid disk considerably increases load by the engine, it overheats and can fuse (breakdown of isolation or winding short circuit).

Signs of that it is time to sharpen a disk:

– To saw it became heavier, it is required bolshee effort of giving;

– Edges has spent on drink burn slightly, there was a characteristic smell and dark brown traces from disk teeths has inside spent on drink;

– The protective casing of the engine considerably heats up;

– The smell of the burnt slightly isolation – a penultimate stage is felt;

– The smoke from under an engine casing – the last stage has gone.

Household circular saws have no high accuracy of installation of depth and a corner pileniya. In the course of work some of them lose ability precisely to be established even on a corner of 90 degrees (because of shaking of a basic table). If the exact corner is necessary has spent on drink, it is better to do the trial has spent on drink and to use a goniometer. But even this measure hardly will help at work with the model having insufficiently rigid basic table.

It is necessary to check regularly, clips on scales of installation of a corner and depth are how much reliably fixed has spent on drink.

To receive an exact corner of 90 degrees at raspile a bar, it is better to saw from two parties.

In each instruction there is a prevention of a possible overheat of the engine, but anywhere maximum time of continuous work almost is not stipulated. Thus manufacturers decline all responsibility for overheat consequences. An optimum parity of an operating time and rest for a circular saw – 30/15 minutes.

The surface raspila preparations is received equal, without agnails, only from the bottom party – consider it at painting and decorating.

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