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optional drill pipe, Flexible running gear, solid and durable chassis, suitable and safe circumstance - details see: https://www.machineto.com/rotary-drilling-rig-10113714

DBR series Rotary Drilling Rig is a deep foundation piles of large diameter hole equipment, combines modern hydraulic pile Machinery of new technologies, new processes.

Technical parameters of DBR series of rotary drilling rigs

model	unit	DBR200	DBR220	DBR250
Chassis models		BONNYZJ20B-7	BONNYZJ25B-7	BONNYZJ25B-7
The main pump	Germany Rexroth	A11VLO190	A11VLO260	A11VLO260
Max diameter of holing	mm	1800	2000	2500
Max depth of holing	m	60	68	70
Maximum output torque	kN.m	200	250	250
Drilling speed/high-speed	rpm	7-28	7-26	6-30
Max stress	kN	150	180	180
Max pulling force	kN	200	240	256
Pressurized cylinder trip	mm	4300	5300	5300
Max around Angle	°	±3°	±6°	±6°
Max tilted forward Angle	°	±5°	±5°	±5°
Promoting force of main windlass	kN	200	240	256
Diameter of steel wire rope of main windlass	mm	28	28	32
Max promoting speed of main windlass	m/min	75	70	63
Promoting force of subsidiary windlass	kN	76	110	110
Diameter of steel wire rope of subsidiary windlass	mm	20	20	20
Max promoting speed of subsidiary windlass	m/min	79	70	70
Working state equipment height	mm	20091	21045	21627
Working state device width	mm	4400	4400	4400
Transportation state equipment length	mm	14085	15144	15290
Transportation state equipment height	mm	3400	3520	3520
Transportation state device width	mm	3000	3000	3000
Crawler board length	mm	5538	5538	5588
Crawler board width	mm	700	800	800
The system pressure	bar	343	343	343
Guiding pressure	bar	40	40	40
traction	kN	360	440	440
The weight of the machine	T	60	68	70

convenient driver's cab makes driving comfortable

America Cummins world--famous engine with high power, low noise and low emission

Freely flexible track frame and solid and durable chassis

Intelligentized operating hydraulic system and electrical system