DEK generators are excellent to be electric portable generator set for emergency generators, electrical power generators etc. And our bearings are made by NSK, NTN. The structure of Silent Diesel Generators are designed with patent, it could avoid problems, such as too high lube oil temperature, the destroyed cooling fan, we guarantee that the lube oil will not be into the cylinder. And new type: DEK4500SL DEK6000SL generators with longer stroke to enlarge output SPECIFICATION: ALTERNATOR: Model DEK5000SL Type Brushless self-exciting single phase alternator Frequency HZ 50 60 Cont.output KW 4.2 4.5 Max .output KW 4.6 5.0 Voltage regulator Condenser voltage regulator Power factor 1.0 ENGINE: Model F400 Type Air -cooled,direct-injection, 4-stroke diesel engine Displacement cc. 400 Fuel tank capacity L 15 Operating time hrs 13 Starting system Electric start Oil sensor standard Noise level dBA 69 Dimensions (LXWXH) mm 880x565x780 Dry Weight kg 172