We are interested in cooperation with the manufacturers of polymer substance press (preforming presses), who are looking for an official and reliable distributor to deal with supply & delivery of their equipment to the industrial plants in Russia.
The company's top management and sales team are well acquainted with the Russian market, its mentality and laws; they also understand industrial specifics of the financial and economic activities of the Russian customers. All our sales managers have a large customer database, extensive experience of successful sales and well-established connections with the potential buyers of your preforming presses. This allows our managers to promptly set out the most promising directions for promotion and to ensure a rapid entry of the products into the promising Russian market. Our employees, who are fluent in English and German, are focused on working at the international market with the supplies of foreign equipment.
Once we become your authorized representative in Russia, our marketing staff will carry out a market research in order to check the demand for polymer substance presses (preforming presses), will submit a market overview for polymer substance presses that you offer and evaluate the needs for this type of equipment at local plants. Our specialists will also estimate the potential and capacity of this market at local industrial plants. Our IT-team will start developing a website for your products in Russian. Our experts will assess the conformity between your preforming presses and customer needs as well as analyze the common reaction to the new goods in general. We will look into the categories of potential customers, and pick out the largest and the most promising plants.
Upon becoming your authorized agent on the territory of Russia, 'Intech GmbH' LLC (ООО «Интех ГмбХ»), will obtain certificates, if required, for a batch of the goods, for various types of polymer substance presses (preforming machines) in compliance with Russian standards. We can also arrange the inspection in order to obtain TR TS 010 and TR TS 012 Certificates. These certificates provides permission to operate your equipment at all industrial plants of the EAEU countries (Russia, Kazakhstan, Belarus, Armenia, Kyrgyzstan), including the hazardous industrial facilities. Our company is eager to assist in issuing Technical Passports for preforming presses as per Russian and other EAEU countries' requirements.
Our engineering company 'Intech GmbH' LLC (ООО «Интех ГмбХ»), collaborates with several Russian design institutes in various industrial segments, which allows us to conduct preliminary design as well as subsequent design works according to the standards, construction rules and regulations that are applicable in Russia and other CIS countries. It also enables us to include your (preforming presses into the future projects.
Our company has its own certified specialists who will carry out installation supervision and commissioning of the delivered equipment, as well as further guarantee and post-guarantee maintenance of polymer substance presses (preforming presses). They will also provide necessary training and guidance for the customer's personnel.
Hydraulic press (operated actively in the field of such materials as thermosetting plastics and elastomers).
A detailed description of all the three press units will be presented in the following sections.
The press machines, equipped with mechanical drive, are used in the process of manufacture of small-sized products. Such production is characterized by high pressing speeds, short holding under pressure and rather low index of force applied by the press. The power of such units can be increased, but it will inevitably lead to increase of the dimensions and metal intensity. In the industrial production, such presses are used as a rule for tableting of the raw materials and as a part of some automatic presses.
The press machines are equipped with the hydromechanical drive, their construction also provides for a hydraulic cylinder and lever mechanism. Together, these elements enable a movable plate of the press unit to demonstrate higher movement speed with lower force applied at the beginning of the movement and, on the contrary, low speed and higher force applied at the end of the movement.
It should be noted that a hydromechanical press's increase in power leads also to the increase of its metal intensity. In the industrial production, such presses are used widely in the locking assemblies of injection-molding machines.
The hydraulic cylinders can be of two types: single-plunger and multiplunger. The press beds can be of column or frame types. Besides, there is an open-side press design. Some hydraulic presses are provided with a pressing out cylinder for removal of the product from the mold.
The main elements of a hydraulic press are press platen. When they are used in frame designs, they are called sliders; when they are used in column designs, they are called crossbars. The press is equipped with two stationary plates and one movable plate. As a rule, the bottom plate is termed as a press table. Usually, the die mold is located on the table (bottom plate) and the second half – on the movable plate.
The hydraulic presses, the cylinder of which is located at the bottom, have two or more openings for processing of rubber in removable die molds. This type of press can be classified according to the control method: automatic, semiautomatic and manual. As regards the method of the plate's heating, the hydraulic presses are presented as units with steam, electric and induction heating. Physically, such machines can be carousel, rotary and daylight ones.
The hydraulic press structural elements move according to Pascal law: the working fluid is fed under pressure into the cylinder by a hydraulic circuit. This activates the plunger and causes movement of the movable plate. When the press is closing, a certain pressure level or the nominal force of the press Рn occurs. This nominal force is the main parameter of the hydraulic press equipment.
Pf is the working fluid pressure.
Hydraulic circuit and hydraulic distribution valve.
value of the forces of action upon the material.
The geometry and dimensions of the future article and, as a consequence, its molds determine the selection of the press equipment. The following parameters are considered: dimensions of the table, slider stroke and maximum distance between the press platen and the slider.
The standard of manufacture of press equipment provides for the press platen dimensions and nature of the die stroke.
Thus, the press equipment can be selected subject to availability of the information on the dimensions of the article and mold. The dimensions of the mold shall not exceed those of the press platen.
The piston-type hydraulic cylinders move reciprocally while the design of the plunger-type models should provide for returning hydraulic cylinders.
The hydraulic cylinders are capable of operating under severe conditions. The bodies of such cylinders are manufactured by casting or forging. The hydraulic cylinder workpieces undergo thorough quality control. The forged cylinders are manufactured of carbon or low-allowed steel.
by pressing (in rare cases).
The workpiece is bored by a tool that is called a multipoint head. The trepan drilling can be performed through the workpiece. In such cases, the workpiece is first drilled from one side and then from the opposite side with larger diameter. These cylinders are termed as staged ones and used for multipliers and hydraulic boosters.
If the cylinder is to be operated with water or water-based emulsion, its internal surface is chromium-plated to prevent corrosion.
the cast cylinders with larger diameter made of steel are used if the working pressure level does not exceed 32 MPa.
The geometry and dimensions of the cylinders are determined by GOST 6540-68.
The factors to be taken into account, while designing the hydraulic cylinders, include the nominal force of the press Pn, working fluid pressure level Pf(g) an the maximum allowable value of the cylinder material stretching [σs].
A guide bush in the hydraulic cylinder is an adjacent part, the main function of which is to prevent the warp of the plunger during the movement. Thus, the guide bush ensures the movement of the plunger from the hydraulic cylinder strictly along the press axis. The bushes are often made of tin bronze or bearing cast iron.
The hydraulic cylinder of the press is exposed to the forces created by the pressure of the working substance. This force is transmitted by the movable plate of the press, and as a result the plunger material works in compression. The device for fastening the plunger to the movable plate is determined by the place and method of application of the load.
Most of the designs of the press equipment provide for standard operation with stationary molds, arranged vertically in relation to the press axis. In this case, the plunger is fastened to the movable plate.
Using a threaded flange, a thread is made at the plunger's end; and the flange is screwed onto the plunger end. The joint is made using bolts and pins.
check the plunger for stability.
Then the calculation is performed according to Euler formula.
The bed function is to provide for fixation and installation of all the press mechanisms in a certain position. Besides, it is a master link, which perceives the nominal pressure of the press. The press weight, vibration and dynamic loads are transmitted to the press foundation.
The most common types of the beds are frame and column beds. The presses can have two or four columns. The frame press beds are made by casting or welding or can be of cast and welded design. The number of arms depends on the press purpose.
A bed of a two-armed frame press or of a four-column press is a closed spatial frame statically indeterminable, which is loaded by non-symmetrically applied forces and momenta. Thus, the press bed, equipped with the front working cylinder and flat static crossbar, is a closed statically indeterminable spatial frame.
From the cylinder fitted with a supporting flange, the force is transmitted to the cross-bar as a combination of two forces applied at the centers of supporting half flanges.
In cases when the cylinder supports lean against the bottom, the rated pressure can be considered concentrated or distributed.
To the bottom cross-bar, the force is transmitted as a load distributed uniformly over the length of 2/3 of the distance between the centers of the columns or width of the press platen.
The top and bottom crossbars are replaced with bars.
The most common material for manufacturing of the column is toughened carbon steel or chromium alloyed steel. The working surface of the column is grounded and chromium plated. The metric, buttress or special buttress thread.
The key unit of the hydraulic system is a pump, which converts the energy of the drive into the energy of the substance flow. Mineral oils (turbine, industrial, spindle and other ones) are used as working fluids in the hydraulic drive systems. While sucking the fluid, the pump imparts some speed to it and feeds the same under pressure to the hydraulic cylinder or hydraulic motor via pipeline.
group pump-based drive with accumulator.
Such mechanism as a pump-based drive with accumulator is used as a part of the group drive.
Selecting the pressure generator, on should consider such parameters as operation conditions, maximum flow rate and working pressure level (fluctuates within the range of 20 to 32 MPa).
All kinds of the pumps, used in hydraulic presses and in processing of polymer materials, can be related to volumetric pumps or positive displacement ones.
In the positive displacement pumps, the working fluid is displaced from the working and suction chambers as a result of reduction of the volume of the chambers.
In the rotary positive displacement pumps, the fluid is displaced from the working and suction chambers as a result of displacers (gears, vanes, pistons, etc.).
hydraulic motors, in which the fluid flow energy is converted into the mechanic energy of the rotational motion of shaft.
Most of the positive displacement rotary pumps and hydraulic motors are inversely mechanical as regards the principle of motion, so that the same units can be used as both pumps and hydraulic motors.
Upon becoming the official distributer of polymer substance presses (preforming presses), our company 'Intech GmbH' LLC (ООО «Интех ГмбХ»), carries out the following: finds the buyers of your products on the market, conducts technical and commercial negotiations with the customers regarding the supplies of your equipment, concludes contracts. Should a bidding take place, we will collect and prepare all the documents required for the participation, conclude all the necessary contracts for the supply of your equipment, as well as register the goods (polymer substance press (preforming presses) and conduct customs clearance procedures. We will also register a certificate of transaction (Passport of Deal) required for all foreign trade contracts in the foreign currency control department of the authorized Russian bank so that currency transaction could be effected. If required, our company will implement an equipment spacing project in order to integrate your equipment into the existing or newly built production plant.