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Services

The Equipment / Machinery

Through years of experience in the industry, the Group has accumulated valuable knowledge and expertise required in acquiring the right type of machinery or redesigning the machinery as well as technical know-how to manufacture a wide spectrum of gold jewellery products.

The Directors believe that the Group’s strength lies in this flexibility to meet demand with the latest innovative designs, availability of multiplicity of designs and high quality of its gold jewellery products.

Jewelry

Minting

Assaying

Jewelry

Sophisticated advanced machines installed in the Chain Department is capable of producing wide range of chains to cater for different markets, such as curb chains, hollow curb chain, cable chain, ficaro chain and so on. Advanced technology such as automatic laser welding of chains is employed to produce some of the chains fabricated by LM.

Chains are either sold directly as end products or used in-house during the assembly process to produce necklaces and other product.

The chain making process begins with melting of gold and alloy. They are placed in specially made crucible, which is heated to the required temperature by means of induction melting furnace. The induction melting furnace is completed with accurate temperature controller. Different level of purity requires different set of operation parameters. A series of rolling and drawing are carried out to obtain round and flat wires of the specified dimension. In the case of hollow curb chain, forming process is carried out by a specified machine.

Annealing by advanced ammonia annealing machine is used to ensure high quality finishing. After the chain making machines have been properly set up by qualified technician and loaded with the requisite materials, the chain making machines will continue to run on their own by auto mode. Soldering, hammering and diamond cutting are then carried out by the technicians to the chain.

Manufacturing Process
Design The starting point of all production process begins with design drawing. Designs/ideas are conceptualized using computer software. The designer would specify the size of the item, the appropriate type of settings and finishing,. Any unique feature is also clearly indicated for the craftsman to create a prototype. A selection committee comprising members from the Research and Development Department, Sales and Marketing Department and Production Department, headed by the Managing Director, would approve the drawings for new design first before fabrication.
Fabrication An experience skilful craftsman would create the prototype based on the product design specifications and the prototype would be made from silver called “Silver Masters”. Computer aided engineering process is also employed for designs targeted at the high-end market. A prototype is cast out and then followed by fine touch-up in order to attain the high-end level of quality. The final Silver Master is then stamped according to the design model number for easy identification.
Casting & Melting During the casting process, gold is placed and melted in the crucible inside the casting machine. Additional gold or silver is to be added to achieve the desired purity of gold that we require (i.e. 999.9% gold or 91.6% purity gold).
Moulding The resultant mould is then filled with the molten gold through combination of pressure exerted from of casting machine.
Cooling The products are cooled off and then washed thoroughly with jet water to remove any remnant of casting powder, before they are soaked in cleansing solution to improve the glossy appearance.
Stamping These are gold jewellery made from stamping machines, quite different from casting products. The stamping parts are punched out or pressed from hydraulic presses. The moulds and dies for the stamping are fabricated internally. LM is equipped with its own machines to make the high quality moulds and dies. The gold components produced by the stamping machines operated by experience machinist are subsequently assembled into products as per the customers’ orders.
Final Inspection Quality checks are conducted at every stage of the production cycle before proceeding to the next stage to ensure that a high quality is maintained. At the end of the production cycle, a team of quality control operators check all the finished products again. Thereafter, all the finished products are packed for delivery.