Chief application: vacuum sintering for the powder material, e.g. rare earth permanent magnetron alloy, hard alloy, metal-ceramic etc. Characteristics: 1. Automatic program control, stable operation. 2. Man-machine interface(option) 3. Uniform heating, small deformation of the workpieces 4. powerful cooling capability, pressure of the cooling gas 0.2 Mpa, 0.6 Mpa, 1.0Mpa(option) 5. Saving energy, non-atmosphere pollution 6. Many kinds of protective function, safe operation