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RUF Furnace
- the finest German workmanship

RUF RDO 402 & RDO 702 are unique industrial furnaces with motion controlled turntables. It is possible to process not only precious metals  (gold, silver,etc) with our furnaces, but also high-grade steel, platinum and titanium which require high temperatures up to 1100 degrees. The door with two sides and air circulation gives the security of temperature disruption and alomst no risks for unplanned cooling. 

The heating up is even, fast , precise and flexible in combination with perfect ioslation thanks to RUF years of hand craftmanship .Specific adjustments and changes are possible by request RUF with additional modifications.

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Double Sided Doors

RUF Furnaces are equipped with double sided doors with special designed air circulation channels. There would be minimal heat loss within the furnace. 

Powered Turntables

RDO 402
Turntable 380mm: 12 - 22 flasks
ROD 702
Turntable 450mm: 14 - 36 Flasks

All RUF furnaces have motion controlled powered turntables as options. Also,we can also built in a seat console for the transporting and displacing by means of an elevating truck or high-lift truck. 

Turntable Construction

Using the finest materials from Germany and years of craftmanship experienc, RUF turntable construction has proved to be the one of the most optimal and efficient for warming up flasks.

Two Furnace door 

An easy way to program the desired tempeature. The heat movement and tempearture acceleration is precise and even. 


Our vision is to provide our customers  the most innovative machinery  with manufacturing techniques and processes with cutting edge technologies proven from around the world with our local knowledge for the Great China Market and Southeast Asia. 

Hong Kong, China-based Kingsway Jewelry Supplies Co Ltd serves as a distributor of alloys and equipment for a number of major brands in Asia. Gilbert Kwok, managing director of the company, shares with JNA the qualities that make Kingsway an ideal partner for jewellery-manufacturing equipment and materials in the region.

We have been a major supplier of casting and melting machines in Asia for more than three decades.

We keep a close eye on the latest industry developments, from electronics to modern engineering technology. By doing so, we are able to identify the technologies, which we believe would better serve the needs of the jewellery industry.


Kingsway mission statement is to accelerate the technology advancement, efficiency and scalability of the jewelry industry in Asia by offering best softare/hardare and international experience. 

We excel not only in China but also have experience throughout Asia. 


Kingsway is only a engineering company wants to link its decades of trade experience, knowledge network and local Asian knowledge to serve our customers with better, more efficient and new processes of tomorrow. 

We never counterfeit or copy our supplier products or customer designs to make quick money. 

In the jewelry world, Kingsway is the firm that you can trust. 

Based in Hong Kong, China, Kingsway has been serving all our customers with integrity and decades of  trade specific experience.


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