Kimla StreamCut Waterjet machines
The lowest maintenance costs of the pump and head
Kimla waterjet machines are equipped with a high-pressure pump with a pressure booster and accessories from the renowned American company Accustream. Accustream pumps have the lowest maintenance costs of approximately $ 1.25 per hour of operation. It is noteworthy that the maintenance costs of some manufacturers’ pumps are even four times higher. This is particularly important because in the competitive market of waterjet services, operating costs may determine the success of a project.
Adjusting the amount of abrasive
Kimla machines are equipped with the Accustream abrasive regulator with smoothly regulated amount of the garnet delivered to the head. This allows for precise adjustment of the amount of abrasive to the material being cut and specific machining conditions.
That takes up little space The waterjet machines produced by Kimla are characterized by an extremely compact design that requires little space and is convenient to use. Access to the material lying on the bath grate is possible from four sides and allows the operator to freely handle the material and collect the cut details.
300 kg with a hopper system. The abrasive tanks supplied with Kimla machines have a capacity of 200 liters, which allows for many hours of cutting without interrupting the work in order to replenish the abrasive. The hopper allows for convenient refilling of abrasive by using an automatically lifting mushroom valve.
Smooth adjustment of the cutting
Speed the feed speed when cutting on waterjet machines depends on the type of material, its thickness and quality that we want to achieve. In some machines, it is not possible to select a different feed rate than assumed by the manufacturer. Kimla machines enable smooth adjustment of the feed speed, allowing the operator to adjust the speed to specific requirements.
AC digital servo
Drives waterjet machines should be driven by motors that enable reliable and repeatable mapping of the processed shape. Therefore, you should not save on drives. Some companies (including reputable ones) use stepper motors for the feed drive, which do not have position feedback and in case of overload they may lose this position, destroying the entire material. The Kimla waterjet machines use modern AC servo drives with vector control and position feedback for continuous control of the head position.
Most of the control systems for cnc machines have a similar logical structure of servo controllers for many years. It is a serial architecture. The set position from the interpolator is compared with the measured value and the error is transferred to the position regulator, from its output the speed is set, the speed regulator output is the torque, and only at the end is the servo drive. Such an approach causes significant delays, limiting the dynamics of regulation. Kimla machines use a regulator with a parallel setting of position, speed, torque and jerk, which was possible thanks to a very fast data transmission between the interpolator and servo drives via real-time Ethernet (RTE). As a result, the dynamic accuracy of the machines has increased significantly. This is especially noticeable at high speeds and complex shapes.
Some materials, such as glass, stone, ceramics, tend to break and chip when piercing. Therefore, the Kimla machines have been equipped with the possibility of low-pressure piercing, which allows to limit the impact force of the jet when piercing the material.
Toolpath generation software
In waterjet machines, dynamic control of the speed of work is extremely important, which should depend on the shape of the tool path. The Kimla machine software has the ability to automatically generate tool paths based on dxf, plt files, etc., and allows you to draw elements in the built-in editor. The tool path generation module automatically generates the tool path taking into account the dynamics of the speed and the diameter of the cutting jet. It is extremely important because many machines from other manufacturers, especially cheap ones (e.g. Chinese), try to use control systems for milling machines in their machines, which forces them to work with the lowest speeds for a given shape. The efficiency of such a solution is many times lower than in the case of Kimla machines and other leading manufacturers of waterjet machines.
Electronic correction of the gate angle
The use of a gate moving along a narrower side of the working area significantly increases the ease of use, but some manufacturers have problems with maintaining the correct angle of the gate due to its flexibility and lack of synchronization between its drives on both sides. The Kimla company has developed and implemented a system of electronic correction of the gate angle, which, when turned on, automatically sets the correct angle, regardless of the initial setting of the drives.
Possibility of upgrades
The control systems of numerical machine tools, due to very fast development, age (in terms of content) even ten times faster than their mechanics. The control system of a ten-year-old machine often looks as archaic as a hundred-year-old mechanic. Due to the rapid development, we have integrated a module with the control system that allows for subsequent upgrading of the control system software. The Kimla company also offers replacement of entire control systems at very attractive costs for long-term customers.
Advanced diagnostics – oscilloscope
The control system has an integrated diagnostic module that enables remote maintenance and diagnostics of the control system, which significantly simplifies and speeds up troubleshooting.
Linear rolling bearings with preload
All Kimla machines are linearly mounted with a system of guides and rolling blocks with preload. This ensures high rigidity of the running elements and their durability is calculated in tens of thousands of kilometers.
Possibility to adjust the grate
When changing the grate many times, due to the inaccuracies made by the users of the ribs, it is possible to precisely adjust the height of the grate so that the gap between the nozzle and the material is always within the optimal range.
Cutting in five axes
Our company is proud to present its proprietary solution for five-axis waterjet cutting. The control system allows you to proc directly from the program in three modes: constant wall angle (also on curves), constant head angle and radial deflection, additionally the path can be controlled by G-CODE. Innovative solutions in the field of construction and control system of our water jets have been appreciated and awarded the Gold Medal at the ITM Poznań International Fair.
Double synchronized gate drive
Due to the large gate width, the Kimla machines are always equipped with a double independent gate drive on servo drives on both sides, which allows to avoid twisting and angulation of the gate, which is the case with single drives.
High Working Speeds and Acceleration
Most waterjet users believe that these machines are slow and do not develop high processing speeds. However, the speed of waterjet technology development is so high that these claims need to be verified. Thin and relatively soft materials, such as aluminum, ceramics, etc., can be cut much faster today than a few years ago, and for this reason, with these materials, the cutting speed is often not limited by the water cutting technology itself, but by the limitations of the control system and drives. Therefore, Kimla machines are equipped with solutions enabling them to reach working speeds of up to 0.5 m / s. This results in the possibility of even multiple increase in cutting efficiency, especially for thin materials.
Rigid spatial structure of the bathtub and self-supporting structure
The main geometric concepts of the bodies of the water cutting machine are divided into monolithic solutions and those in which the tub with the grate and material are not mechanically connected to the head positioning kit. Some manufacturers explain that the separation of the bathtub from the coordination system with the head has a positive effect on the treatment, as no vibrations are transmitted. Vibrations, first of all, should not be. And when they are, the cutting head and the material to be cut should move together. This is the case in the monolithic version, in which the coordination system is mounted on the bathtub. Then there is no relative movement between these elements, which has a positive effect on the accuracy of machining. We can propose both solutions depending on individual beliefs, but we tend to be a monolithic solution.
Convenient movable control panel
Kimla machines are equipped with a mobile control panel that can be moved within a range of several meters, which enables convenient control of the machine.
The hot-dip galvanized
Waterjet bathtub is a considerable expense and therefore the machine of this type has to work for many years. Sand and water will damage the best paintwork and after a few years the machines with only paint finish look very old, They are corroded and battered. Before painting, our machines are hot-dip galvanized, which ensures deep penetration of zinc, which enables many years of anti-corrosion protection.
finishes Despite galvanization, the elements are particularly vulnerable to scratching and damage. In such cases, we finish them with stainless steel, which looks aesthetically even in extreme conditions.
All drives protected against water
Water and sand are everywhere in waterjet machines, which exposes drive elements and linear bearings to damage. All drives are protected against direct exposure to these factors
waterjet machines are noisy. Especially the water jet in the air is noisy. Even this small distance (about 2mm) that the water travels from the nozzle to the material generates a lot of noise. Therefore, in the Kimla waterjet machines, displacement chambers (air cushions) are installed, enabling the water table to be raised for the time of cutting and lower to facilitate the removal of the material. The process of raising the water table lasts several seconds and ensures greater comfort of work also by reducing splashing.
Independent, external cooling system
The pump is equipped with an external oil cooling system that allows the heat exchanger to be moved, e.g. outside the building, which reduces the space and noise
4.1 l / min at 50HP and 4150bar
Most 50HP pumps with 4150 bar pressure have a capacity of 3.8l. Thanks to the modern design of the pump, Accustream has achieved an expenditure of 4.1 l / min
Modern pressure booster with symmetrical seals.
The high-pressure cylinder seals are the same on the active and passive sides, which reduces the range of components when replacing seals.
No Threaded Cylinders – Studs
Most pressure amplifiers have threaded cylinders which are expensive and impractical. They often stick, which leads to the need to replace not only the cylinders, but also the elements of the bodies cooperating with them, which results in a multiplication of operating costs. Accustream pumps use unthreaded pins and cylinders. In case of damage, the pins are very cheap and easy to replace.
cylinders The cylinders have a much thicker wall, which increases the life of the cylinder and therefore has a greater fatigue life.
0.014 nozzles and 0.040 (1.016mm) tubes
In Kimla machines with pumps, Accustream 50HP, nozzles up to 0.014 (0.36mm) and 0.040 (1.016mm) mixing tubes can be used. Only tubing up to 0.030 (0.76mm) can be used for smaller pumps, which directly reduces the efficiency.
Table made of galvanized steel strips (no gratings)
In waterjet machines, the material is placed on a special grate, under which there is water to dissipate the energy of the water stream. The material is cut, but the grate is also cut. Often, gratings are used in waterjet cutting machines. Unfortunately, due to their small thickness, they quickly deteriorate and need to be replaced frequently. The Kimla waterjet machines are equipped with a segmented grate consisting of high strips of galvanized steel, which ensures high durability and the possibility of replacing individual ribs.