
Authority of Heat Treatment
Ningshing Precision Machinery has high-quality raw materials and rich experiences of vacuum heat treatment.We are one of the five drafting units of China's Medium Alloy Hot Working Die Steel for Die Casting Dies. We use KIND&CO's technological process throughout the process to provide customers with professional, high-quality heat treatment services.
Vacuum Furnace (VAC1)
Effective size: 600mm × 600mm × 900mm
Maximum load: 800kg
Maximum working temperature: 1300 ℃
Maximum quenching pressure: 10Bar
Quenching medium: 99.999% nitrogen
Heating mode: convection heating below 850 ℃, vacuum radiation heating above 850 ℃
Application scope: vacuum quenching, vacuum annealing, vacuum tempering, solution, aging, etc
Vacuum Furnace (VAC3)
Vacuum Furnace (VAC2)
Effective size: 900mm × 900mm × 1200mm
Maximum load: 1500kg
Maximum working temperature: 1300 ℃
Maximum quenching pressure: 12Bar
Quenching medium: 99.999% nitrogen
Heating mode: convection heating below 850 ℃, vacuum radiation heating above 850 ℃
Application scope: vacuum quenching, vacuum annealing, vacuum tempering, solution, aging, etc
Effective size: 1200mm × 1200mm × 2000mm
Maximum load: 7000kg
Maximum working temperature: 1300 ℃
Maximum quenching pressure: 15Bar
Quenching medium: 99.999% nitrogen
Heating mode: convection heating below 850 ℃, vacuum radiation heating above 850 ℃
Application scope: vacuum quenching, vacuum annealing, vacuum tempering, solution, aging, etc
Tempering Furnace(HT01、HT02)
Nitrogen protection convection heating.
Effective size: Φ 800mm × 1200mm
Maximum load: 1200kg
Maximum operating temperature: 750 ℃
Nitrogen protection convection heating.
Effective size: Φ 1200mm × 2000mm
Maximum load: 7000kg
Maximum operating temperature: 750 ℃
Tempering Furnace(HT03)
Tempering Furnace(HT04、HT05、HT06)
Nitrogen protection convection heating.
Effective size: Φ 800mm × 1400mm
Maximum load: 1500kg
Maximum operating temperature: 750 ℃
Gantry Rockwell Hardness Tester
Hardness measurement system indication repeatability: ≤ 2.0% or 0.8 Rockwell units
Allowable error of indication: ± 1.5HRC
Maximum overall dimension of workpiece: 2000X1400X500mm
Maximum weight of workpiece: 8000kg