Founded in 1999, Luoyang Sigma Instrument Manufacture Co.,Ltd is a high-tech enterprise specialized in R&D and manufacture of all kinds of muffle furnace, industrial furnace, tube furnace, vacuum furnace and high temperature furnace etc.

Sigma has the right to the use of 40 acres industrial land and owns 8000 m2 standardized plant and office buildings, 1500m2 administrative and marketing center and 1500m2 ultra-high temperature engineering and technical research and development center. It also possesses four advanced production lines of lab furnace, industrial furnace, ceramic fiber board and furnace chamber, and ultra-high temperature ceramic fiber.

In 2006, our company was the first one to develop the ceramic fiber type artificial intelligence box resistance furnace and regarded the over temperature value of 1-3 degrees Celsius as one of the standards to control the temperature in box resistance furnace, the comprehensive performance of which reached the advanced level of the international brand. Sigma, therefore, becomes a well-known brand in laboratory industry.

In 2007,our furnace were rated