1. According to the weight and bucket capacity of your excavator; 2. According to the working flow and pressure of the breaker;3. According to the mechanism of the breaker.
 

Light Type Hydraulic Breaker
Item.	Weight (kg)	Working flow rate (L/min)	Working pressure (Bar)	Imapct rate (bpm)	Hose diatmeter (inch)	Chisel diameter (mm )	Excavator weight (ton)
FH10	50	20-40	90-120	700-1200	1/2	40	0.8-2
FH20	70	20-40	90-120	700-1200	1/2	45	1.2-3
FH30	90	25-45	90-120	500-1100	1/2	53	2.5-3
SB40	155	36-60	110-140	500-900	1/2	68	3-7
FH43	210	50-90	120-170	400-800	1/2	75	6-9
FH45	280	45-85	127-147	400-800	1/2	85	7-14
FH60	480	80-120	150-170	400-650	3/4	100	10-15
Medium Type Hydraulic Breaker
FH70	846	130-170	160-185	400-650	1	135	18-25
FH81	920	150-190	165-195	400-800	1	140	20-30
FH121	1092	150-230	170-200	250-400	1	155	27-36
Heavy Type Hydraulic Breaker
FH131	1442	200-260	180-200	250-400	1.1/4	165	30-45
FH151	1930	210-280	180-200	250-350	1.1/4	175	40-50

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