LD-D series variable curvature glass tempering furnaces are mainly used to bend and temper variable curvature glass, for commercial refrigerators, food showcases, and high-class buses. The intelligent servo control system and flexible arcing mechanism are applied to the furnaces, which can process various kinds of high-quality variable curvature glass through the innovative process and furnace layout; in addition, the furnaces can process various kinds of coated glass and clear glass through the forced JetConvection heating technology or radiation heating technology. Technical Features: 1) New arc forming technique and flexible bending mechanism ensure the flexibility of arc forming and the convenience of arc adjusting; meanwhile, high precision bending mechanism also ensures the accuracy and stability of arc forming; 2) Bending & tempering sections are separate and there is no movement in bending mechanism during which not only ensures the glass accuracy and repeatability, also reduces the daily maintenance.