Performance Characteristics of the NJ-6 Caking Index Tester:  
■ This instrument is specifically designed to measure the caking capacity of coal used for coking—both the caking index and the Roga index.
■ The drum sensor utilizes imported integrated electronic switches, offering long service life and strong anti-interference capabilities. It features a simple structure and reliable performance.
■ The gear reducer does not require adding engine oil, solving the issue of oil leakage from the reducer.
■ There is no need to set the number of drum rotations; the computer automatically controls it.
■ Automatically records the number of starts.
■ Display method: LED digital display, with manual reset or automatic reset upon startup.

Technical Parameters of the NJ-6 Caking Index Tester:
■ Drum rotation speed: 50±2 r/min
■ Automatic control range: 1—999 rotations, arbitrarily preset
■ Display method: LED digital display
■ Power supply voltage: AC220V±10%, 50Hz  
■ Motor power: 120W
■ Caking index measurement accuracy complies with GB/T5447-1997
■ Roga index measurement accuracy meets the requirements of GB/T5449-1997