PREMET

Sharjah, United Arab Emirates

TIP furnaces are designed to manufacture any size of ingots, from 100 g to kilo-bar either in gold or silver. Ingots are obtained by melting pre-weighted grains in a graphite mould placed inside the vacuum chamber and then by cooling appropriately the ingot during the solidification phase. The machine is fully automatic having more than 100 programs for different ingot sizes. The operator only has to load the graphite mould with pre-weighted grains into the holding disk, close the loading chamber and press the START button to launch the automatic cycle. At the end of the cycle the furnace will return the gold or silver bar ready for the market stamp. In order to increase productivity, the system has been conceived with 2 loading chambers and one melting chamber. This configuration allows for melting the next ingot while the previous one is cooling. This overlapped working mode is also important to decrease the running cost of the process because they are mainly related to the graphite mould consumption. A colder graphite mould in output increases the life of the same. The heart of the machine is the induction generator and its coil, designed to maximize the heat transfer during the cycle. After loading the graphite mould, a pneumatic jack will lift the part up perfectly into the center of the magnetic field and the melting step will begin. All melting and cooling process occur in a closed chamber in which vacuum and inert gases guarantee no metal or graphite oxidation. Gas can be chosen between Argon or Nitrogen.

TVCs are fully automatic, robust, easy to use pressure over vacuum casting machines designed for small and medium casting laboratories. This family of machines work with the well known pressure over vacuum concept, thus preferring the perforated flask against the solid ones. Melting is achieved in protective atmosphere (Nitrogen, Argon or Helium) while a strong vacuum pump is provided in order to boost the suction effect into the mould. As soon as the metal has entered the mould a strong compression takes place on top of the tree to reduce shrinkage porosity. Flask size can reach up to 300mm in height and 160mm in diameter. Crucible graphite consumption is greatly reduced thanks to the gaswash procedure which removes the oxygen in few seconds from the charge loading operation. The machine is fully automatic making the operator’s job very easy (you simply have to load the alloy and flask and then press the START button). This will give you the most consistent result flask to flask. And remember, meanwhile the machine is running the cycle, you can do other important jobs in your factory. Having a consistent, robust and easy to use machine in your factory is the key factor for a reliable casting production.

OMEGA is a Premium Quality Investment Powder with the Highest Percentage of cristobalite, a Key Ingredient for Higher Melting Temperature gold Alloys including  21ct, 22ct , 18ct, White Yello gold, and Palladium white gold.   The thermal expansion, particle size distribution and greater permeability work to produce the optimum quality of casting.

TCC Vacuum Continuous Casting machines have been design with the most up-to-date technologies to give you semi-finished products with the best quality and in the shortest time. With only one machine, you will be able to obtain the semi-finished product you desire, such as wires, sheets or tubes. TCC machines are equipped with Gas Wash Purge procedure which removes oxygen with the vacuum pump and fills back the melting chamber with inert gas, preventing the oxidation of the alloy in a very fast and efficient way.   Medium frequency induction heating stirs the melted alloy and leads to a perfect homogeneity, while the temperature is constantly monitored by two independent temperature controls. As on option, it is possible to have an additional vacuum loading chamber, positioned on top of the cover with automatic crucible feeding mechanism, for continuous production.   During drawing, the temperature of the die is constantly monitored to obtain always the best density and quality in the semi-finished products. In addition, there are two independent temperature controls for preventing liquid metal leakage, one of them with an optical pyrometer aiming directly on the bar coming out from the die. The drawing unit can also be equipped with an extra induction generator, which allows to restart the cycle after the production shutdown.   Pulling unit is equipped with devices for automatic detection of slippage phenomena between the roller and the semi-finished product. Another specific device will also detects the end of the cycle, when the bar reaches its end.   To reduce the risk of oxidation during drawing, the semi-finished products are under a constant inert gas flushing as they come out of the die.   In addition, when a quicker cooling is required, semi-finished products can be cooled down by a direct water sprinkle aiming on their profile.   Hydraulic cutting on the run is available on request, with automatic and programmable measurement of the profile length.

Hydraulic Draw Bench 30000 Kg TRI30 is the ideal draw bench to process tubes and bars with circular cross section or with complex profile, capable to ensure high quality standards and accuracy of the finished product. Technologically advanced thanks to the use of top-level components and innovative design solutions covered by patent, the TRI30 draw bench is fully controlled by PLC for both working phases and safety protection. 10.000 Kg Hydraulic Draw Bench TRI10 is the ideal draw bench to process tubes and bars with circular cross section or with complex profile, capable to ensure high quality standards and accuracy of the finished product. Technologically advanced thanks to the use of top-level components and innovative design solutions covered by patent, the TRI10 draw bench is fully controlled by PLC for both working phases and safety protection. More info on the below data sheet. Hydraulic Drawing Bench Kit KTF10 is a very compact draw bench to process semi-finished tubes or bars having a maximum total length of 1 meter ready for turning or rolling, capable to ensure high quality standards and accuracy of the final product. Technologically advanced thanks to the use of top-level components and innovative design solutions covered by patent, the KTF10 kit has the truck carries pliers perfectly aligned with the hole of the drawn in order to eliminate any formation of bending effects on the metal structure. More info on the below 

Inextensible Mono station injector. Equipped of one melting tank, one vacuum meter for checking the vacuum inside the mold, RFID microchip reader is included. Micro syringe of 12 cmc with final setting up of the temperature and autocentering clamp with plates 120x90x(8-45)* mm. Compact and Inexpensive Compact and small Medium-small waxes Production of 2.000 pcs/day Only one operator   Machine: 42 kg - 60x38xh53 cm Wooden box: 68 kg - 83x50xh70 cm. (*) for special requests plates 120x120x(23-60) mm.