YZK20A (Full Hydraulic Double-drive)

YZK20A (Full Hydraulic Double-drive)
Major Technical Features:
Accumulation of dozens years research and design experience of Changsha Construction Machinery Research Institute of Construction Ministry
Powerful vibration, powerful swing, best vibratory parameter matching, outstanding performance and efficient.
All hydraulic, two wheels driving, two shifts stepless gear shifting, two frequency, two swing.
Traveling break, stop break, urgent break ensures safety.
Deutz engine from Germany, Rexroth or Sauer hydraulic pump and motor, FAG vibratory axle, Dana driving axle from USA, all from international well-known companies.
All close air condition cab, electrical control gear shifting, convenient and comfortable operation.
Exclusive streamline design, broad back view sight, easy for maintenance.

Product Sales Point:
All hydraulic, all wheel driving, double frequency, double swing, Deutz water cooling engine, powerful vibratory, powerful swing, outstanding performance. Engine, hydraulic pump, motor, decelerator, driving axle and vibratory axle, all are imported superior components. Multicenter and multipoint lubrication technology ensures sufficient and good lubrication to the vibratory wheel, prolonged the usage life of the axle. Low speed sealing prolonged the usage life of sealing loop and the vibratory. Enhanced four axle supporting structure, good hardness, adopting Germany FAG heavy axle, longed academic life (almost twice as before), perfectly presents usage life principle design. Imported rubber decelerator prolonged the usage life a lot, make the operation more comfortable.

Item		Parameter
Operation weight	kg	21000
Front load	kg	13600
Rear load	kg	7400
Drum dimension	mm	Φ1600×2150
Linear load	N/cm	558
Vibrating force	kN	400/280
Nominal amplitude	mm	1.7/0.75
Exciter frequency	Hz	29/35
Engine type		BF6M103
Engine Power	kW	133
Engine revolution speed	r/min	2300
Voltage		DC 24V
Travel speed	km/h	0～5 0～10
Gradeability up to	%	42
Turning angle	°	±35
Swing angle	°	±10
Tyre angle		20.5～25
Overall dimension	mm	6200×2400×3220

	Out-sealed Floating Vibratory Shift Mechanism
	Out-sealed Floating Vibratory Shift Mechanism
	Vibratory Motor
	Double Frequency Hydraulic Transmission Double Swing System, adopting international top brand Hydraulic components, better quality, reliable and stable performance.
	Imported Dana original transmission axle from USA
	Top brand driving axle, efficient transmission, reliable operation.
	Imported Deutz original engine from Germany
	Powerful world top brand engine, ensures stable and reliable power output at any circumstance.
	Top high pressure pump and motor
	Hydraulic system, adopts close static hydraulic transmission with two level filtration, supported with world top brand Rexroth or Sauer high pressure and motor, efficient, low noise, easily for stepless gear shifting.
	Vibratory wheel structure
	Special vibratory wheel structure design, adopting exclusive low speed sealing structure, improved reliability a lot, and prolonged the maintenance period of the vibratory wheel.
	Water Spray Pump
	Double drum road roller has two independent pressure water spray system, ensures water spray system's reliable work at any time.
	Axle
	1 Multicenter and multipoint exclusive lubrication technology, ensures sufficient and good lubrication to the axle, prolonged the usage life of the axle. 2 Enhanced supporting structure, good hardness, adopting world top brand heavy axle, longer academic life, perfectly present the principle of life design.