Comparison Sturm ET4553 vs AeroPro SF5040E

The type of tool is indicated by the method of power supply (energy source) that is used for work, and in some cases - by more specific parameters.

Based on power supply, modern construction staplers and nailers are divided into mechanical, impact (hammer), pneumatic, electric, battery and battery-gas. Also, handheld and floor-standing models are divided into separate types - they have their own specifics (the former usually use a pneumatic operating principle, while the latter combine pneumatics and impact). Here is a more detailed description of these varieties:

- Mechanical. One of the simplest and most popular types of modern staplers. Actually, the vast majority of such tools work specifically with staples; other types of fasteners (see below) are also found, but somewhat less frequently. A classic mechanical stapler looks like a D-shaped frame with a lever under the customer's hand. Such a frame is brought close to the surface to be treated; by pressing the lever, the customer cocks the spring, and when the lever is fully pressed, it is released, forcefully “shooting” the staple and driving it into the material. The main advantages of mechanical staplers are simplicity, low cost,...compactness, light weight and complete independence from external energy sources and other equipment. On the other hand, the productivity and impact force of such tools is low, which is why they are well suited only for relatively simple work on a small scale.

— Impact (hammer). A specific type of mechanical stapler (see above), which works not due to spring compression, but due to impact force. Simply put, when working, you need to hit the material with such a stapler like a hammer. Percussion instruments are extremely simple, compact and inexpensive even compared to traditional mechanical ones, but this is perhaps their only advantage. Among the disadvantages, it is worth mentioning, first of all, less accuracy - in order to hammer staples with an accuracy of at least half a centimeter, you need to seriously train. In addition, there is not enough room to swing everywhere, and such tools are usually incompatible with nails or studs. Therefore, this option was not particularly widespread.

- Electric. Staplers driven by an electric motor, connected to the network when working. This design provides good impact force, making it easier to work with hard materials and fasteners such as nails or studs that require significant force (see “Fasten Type”). The productivity of electric staplers is also quite high, despite the fact that the customer only spends energy on pressing the release button. On the other hand, electric tools are much heavier and more expensive than mechanical ones, and in the absence of outlets or other power sources, they become useless. And the connection to power is carried out through a power cord, which can limit mobility, get underfoot and create other inconveniences.

- Rechargeable. A variation of the electric staplers described above, created to eliminate one of the most serious disadvantages of such a tool - dependence on sockets. As the name suggests, cordless models are equipped with their own batteries and can operate regardless of the presence of nearby power sources. And the absence of a network cable often turns out to be a noticeable advantage. At the same time, this option also has serious disadvantages. So, with the same flow Rate characteristics, cordless staplers are more expensive and heavier than corded staplers (despite the fact that the power tool itself is not particularly light). Battery life is limited, and when the charge is depleted, a power source will still be needed. The autonomy can be somewhat expanded through the use of replaceable batteries, but this feature still does not eliminate the described shortcomings, and is not available in all models.

- Pneumatic. Staplers powered by compressed air supplied from a compressor. In terms of their advantages (impact force, productivity, low operator fatigue during operation), such models are similar to electric ones, but they also have certain advantages: the tool turns out to be more “fast-firing”, lighter and with less likelihood of sparking between parts (the latter, in turn, has a positive effect on fire safety). In addition, pneumatic models are often highly powerful and can handle very large fasteners. On the other hand, the need to use a compressor creates serious inconveniences: the entire set of working equipment turns out to be expensive, bulky and inconvenient when transporting from place to place, the compressor also needs to be connected somewhere (or refueled and serviced if it is equipped with an internal combustion engine), and the air the hose limits the mobility of the stapler. As a result, the main area of application for pneumatic staplers is furniture factories and other industrial facilities, where the volume of work is large and it is possible to constantly keep the tool in one place.

— Battery-gas. A rather original type of “driver”, the operating principle is similar to a firearm: fasteners (usually nails) are “shot” using the energy provided by the combustion of a small portion of gas, and the battery is only responsible for creating a spark for ignition. A spark requires relatively little energy, so the batteries in such tools are more compact and lighter than in “purely” battery-powered ones. Also among the clear advantages of battery-gas models are high driving force and excellent flow Rate (up to 180 beats/min). And no one has canceled the autonomy and ability to work independently of external equipment. On the other hand, the design still turns out to be quite heavy and cumbersome, such a tool needs to be “charged” with two types of consumables (battery energy and gas), and the price is quite high. As a result, battery-powered nailers are not particularly widespread; they are used mainly as a heavy professional tool - in cases where the described advantages outweigh the disadvantages.

- Handheld. A special compact type of pneumatic nailing tools. A palm nailer is a working attachment with a hammer, but without a magazine - essentially, a kind of hand-held pneumatic hammer. When working with such a tool, each nail must be held with your hand (or “sinked” into the work surface in advance), and driving, as a rule, occurs through a series of blows. In general, such nailers are inferior to traditional ones in terms of convenience and speed of work, but they also have advantages: handheld tools are compact, light in weight (which significantly reduces fatigue compared to conventional ones), the length of the nail for them is almost unlimited, and the permissible thickness is usually noticeably greater, than in classic “nail guns”.

- Floor-standing. A special type of tool designed for driving staples and/or nails when laying floorboards. It has the appearance of a V-shaped structure, the sole of which is installed on the floor during operation. One half of the letter V is the working part with a handle for holding in the hand, the second is the magazine; and the shape of the sole is selected in such a way that it is in close contact with the side end of the board being fixed and additionally presses this board to the already laid covering. Floor-standing devices use both pneumatics and impact, and it looks like this: having installed the tool connected to the compressor in the desired position, you need to hit the special protrusion at the end of the working part quite hard with the supplied mallet. This serves as a signal to trigger the pneumatic mechanism, and the impact energy complements the energy of compressed air, thanks to which floor-standing models are able to work with very long staples/nails.

Standard sizes of fasteners for which the tool is designed. This information is necessary for the correct selection of consumables: each standard dimensions corresponds to certain dimensions of parts, and sometimes also design features. There are a great many standards describing standard sizes; they differ not only in the type of fastener, but also in the geography of application and even by specific manufacturers. Detailed data on various standard sizes can be found in special sources; here we will provide general points on some of the most popular options.

First of all, it is worth saying that the standard dimensions describes only two parameters - thickness and width (for nails - size and width of the head). The length can be different: for example, for the popular staple dimensions 53, the length range can be from 4 to 14 mm, and for 140 - from 6 to 14 mm. At the same time, tools for a certain standard dimensions are not necessarily compatible with all length options. So when assessing compatibility with consumables, you should pay attention not only to this point, but also to the restrictions on the minimum and maximum length of fasteners.

This is what the list of the most popular sizes for rectangular brackets looks like:

- 55. One of the smallest sizes used in modern staplers is 6 mm wide and 1.1 mm thick.
- 90. Another relatively small standard dimensions, it has even a slightly smaller width - 5.8 mm - and a thickness in the...range of 1 - 1.27 mm.
— 57. Staples 10.6 mm wide and 1.2 mm thick.
- 59. The “thin” analogue of dimensions 57, with the same width, provides a thickness of only 0.75 mm.
— 140. Quite rigid staples with a width of 10.6 mm and a thickness of 1.24 mm.
- 114. A slightly enhanced variation of dimensions 57, with increased width and thickness - 10.8 mm and 1.4 - 1.6 mm, respectively.
- 53/53F. Quite wide (11.3 mm) staples, available in both 0.75 mm (53) and 1.25 mm (53F) thicknesses.
— 72. In fact, it’s an analogue of the 53 described above: staples 11.3 mm wide and 0.7 mm thick.
- 54/58. Wide staples 12.8 - 12.9 mm, also available in two thicknesses - 0.75 mm in version 58, 1.25 mm in version 54.

Of the semicircular staples used mainly for fastening cables, the most popular options are:

- S. Relatively small staples with a width of 6.2 mm and a thickness of 1.25.
- L. Larger dimensions - 7.7 mm wide with the same 1.25 mm thickness.

In nails for driving tools, the thickness is indicated by the size, and the width by the largest dimensions of the head. The most popular sizes these days are:

— J. Small fastening nails only 1.2 mm thick with a head width of 2 mm.
— N. Diameter 1.65 mm, cap width 2.8 mm.
- DA. The so-called finishing (finishing) nails are quite large in dimensions: size 1.8 mm, head width 3.5 mm. The head has a characteristic D-shape and, as befits finishing nails, when hammered, it is almost completely recessed into the material.

Regarding pins/studs, it is worth noting that such fasteners are actually nails without heads. Therefore, the main dimensions of such parts is thickness (size), for the most common standard sizes it is as follows:

— 40. Thin pins/studs, only 0.64 mm thick.
— 41. Larger fastener, with a size of 1.2 mm.

Detailed information on choosing a standard dimensions for specific tasks can be found in special sources.

Staple models that the tool is compatible with.

Usually, quite specific options are indicated in this paragraph, so finding compatible consumables is not difficult. The specific dimensions of the fasteners should be specified according to the manufacturer's data — different brands use different markings.

Air pressure for which the pneumatic nailer/stapler is designed (see "Type"). It is this pressure that the compressor to which the tool is connected should give out: if the pressure is too low, the efficiency will noticeably drop, and if it is too high, it can lead to breakage and even injury.

The maximum output of a nailer/stapler is the maximum number of strokes it can produce in a minute. Note that in this case, the theoretical maximum is usually indicated — the highest speed of operation achievable under perfect conditions, in fact — the rate of operation of automation, which in many models exceeds 120 beats / min. In fact, this speed is difficult to achieve, because. the performance of the stapler is noticeably limited by the skills of the operator and the features of the functionality: for example, a tool with contact actuation (see below) must be pressed every time, which reduces the speed of work. However, high performance clearly indicates good reliability and suitability for large volumes of work.

The number of fasteners that fit in the stapler magazine.

Note that manufacturers tend to indicate the maximum number of parts in the characteristics — that is, the capacity for the thinnest fasteners allowed by the design of the tool. Accordingly, fewer larger parts will fit in the store; this must be taken into account when choosing. Nevertheless, this parameter makes it possible to evaluate the instrument and compare models similar in class to each other.

Large capacity, on the one hand, allows you to work longer without interruptions to recharge the stapler. On the other hand, volume magazines are usually very bulky and can weigh a lot on their own, not to mention the weight of the fasteners loaded in them. Also, if parts are charged one at a time, recharging can become quite a long and tedious affair. Therefore, it makes sense to specifically look for a tool for 100 parts or more(especially when it comes to thick fasteners) only if the ability to work for a long time without reloading is more important than the disadvantages described above.

The largest width of staples (see Fastener Type) that the stapler can work with.

The width of the bracket is, roughly speaking, the distance between its legs. Different situations and types of work require different sizes of staples, and sometimes the width must be quite large. However, a staple that is too large simply will not fit into the store, not to mention the fact that the stapler can “shoot” it normally. Therefore, this limit cannot be exceeded, and if you plan to work with brackets, you should pay special attention to the maximum width when choosing.

The smallest length of staples (see Fastener Type) that the stapler can work with.

The length in this case means the length of the leg — in other words, the depth to which the staple clogged "to the stop" penetrates into the material. Small staples do not require much power to drive, but the tool may not be designed for fasteners that are too short due to other parameters — for example, the design of the magazine. Therefore, for many models, this limitation is quite relevant, and in powerful professional models, the minimum length can be quite large — more than 20 mm.

The largest length of staples (see Fastener Type) that the stapler can work with.

The length in this case means the length of the leg — in other words, the depth to which the staple clogged "to the stop" penetrates into the material. This means that working with staples of great length requires not only the appropriate design of the magazine and the feed mechanism — the stapler must also be quite powerful in order to provide the effort necessary for effective clogging. And this, in turn, affects the dimensions, weight and price of the tool. In fact, this means that it does not always make sense to specifically look for a model that can work with long staples — you need to evaluate the specifics of the intended work: often the best choice is a relatively “short”, but at the same time inexpensive and compact tool.

In general, a limit of 10 – 15 mm is typical for entry-level staplers, and in professional models this parameter can exceed 50 mm.