Hydraulic Breaker RHB68 for 4-8ton Excavator

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Hydraulic breaker is a powerful percussion hammer fitted to an excavator for demolishing concrete structures or rocks. Such as：

· The primary and secondary crushing work of a rock mountain

· Crushing cement and asphalts on pavements and removing rocks

· Dismantling building and used in other crushing working sites

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Hydraulic breaker specification

Item	Model	RHB40	RHB45	RHB53	RHB68*	RHB75*	RHB80	RHB85	RHB100*	RHB125	RHB135*	RHB135G*
Total Weight	Side(Kg)	70	95	158	263	334	335	559	761	1277	1653	1680
	Top(Kg)	72	95	158	343	409	410	637	866	1308	1847	1880
	Box(Kg)	102	129	180	361	450	451	733	1007	1371	1893	1930
Operating Preasure	kg/cm2	90-120	90-120	90-120	110-140	120-150	120-150	120-150	150-170	150-170	160-180	160-180
Operating Preasure	Psi	1280-1704	1280-1704	1280-1704	1562-1988	1562-1988	1704-2130	1704-2130	2130-2414	2130-2414	2272-2556	2272-2556
Oil Flow	I/min	15-25	20-30	25-50	40-70	50-90	50-90	60-100	80-110	90-120	130-150	145-180
Oil Flow	Gpm	4-7	5-8	6.6-13.2	10.5-18.5	10.5-18.5	13.1-23.6	15.8-26.3	21.1-29.1	23.7-31.7	34.3-39.6	38.3-47.6
Impact Frequency	bpm	800-1400	700-1200	600-1100	500-900	400-800	400-800	400-800	350-700	350-650	400-600	350-500
Dia.of Hose	mm	12.7	12.7	12.7	12.7	12.7	12.7	19.05	19.05	25.4	25.4	25.4
Dia.of Hose	inch	1/2	1/2	1/2	1/2	1/2	1/2	3/4	3/4	1	1	1
Chisel Diameter	mm	40	45	53	68	75	75/80	85	100	125	135	135
Chisel Diameter	inch	1.57	1077	2.08	2.68	2.68	2.95	3.35	3.94	4.92	5.31	5.31
Chisel Length	mm	430	500	580	700	710	711	745	1055	1130	1200	1200
Chisel Length	inch	16.93	19.69	22.83	27.56	27.95	27.99	29.33	41.54	44.49	47.24	47.24
Chisel Weight	kg	4	8	9	18	22	26	29	57	94	115	115
Suitable Excavator	m3	0.07	0.03-0.01	0.06-0.2	0.15-0.3	0.2-0.35	0.2-0.35	0.25-0.5	0.4-0.6	0.4-0.6	0.6-0.8	0.6-0.8
Suitable Excavator	Ton	0.8-2.5	1.2-3.0	2.5-4.5	4.0-7.0	6.0-9.0	6.0-9.0	7.0-14	10.0-15.0	15-18	18-26	20-26

hydraulic breaker spare parts

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· Good quality raw material

· The precision of them is less than 0.05mm

· The precision of seal groove is 0.03mm , to increase the piston's life

· Our cylinder(More than 20T), subzero treatment after heat treatment . It is will be lower deformation and less scratch

· We have Vertical grinding machine ( used for more than 30T) to ensure the precision of piston , straightness accuracy. To improve performance and stability

Control Valve:

control valve.png

1.Special design

2.The tolerance between valve and valve sleeve is 0.02-0.03mm(20T)

Rod Pin & Side Pin:

1.42CrMo

2.Vacuum heat treatment in order to expanded service life, avoid broken

Through bolt:

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1. Special material to improve service life

Seal Kits:

1.Original Seal Kits Nok

2.Excellent wearability and improve the breaker's life

Front cover&Ring bush:

1.42 CrMo to ensure perpendicularity

2.Vacuum heat treatment in order to expand service life, avoid broken

Chisel:

1.42CrMo,Durable and not easy to get rusty

2.The top hardness 53-55HRC

the back hardness 45HRC

Piston:

Warranty:1 year

1. Special material:durable and longer service life.(20CrNiMoA)

2. For larger model, we use special technology, avoid crack. It will be as good as new after six months if you opearte correctly.

3.Vacuum heat treatment, we control the temperature and time of annealing furance by computer and workers. To ensure durable performance and perfect quality.

4.After heat treatment, we use subzero treatment in order to reduce the deformation and not easy scratched ( below zero 130℃）.

5.The piston's precision is 0.005mm and concentricity is 0.005-0.006mm. It ensures beating force.

6.The distance between cylinder and piston:

20T 0.05-0.06mm 30-40T 0.06-0.065 40T 0.065-0.07mm

1.How to choose right model

· Excavator weight

· Working pressure and oil flow

NO.	ITEMS	Model	RHB45	RHB53	RHB68	RHB75	RHB80	RHB85	RHB135	RHB140	RHB155	RHB165	RHB185
1	Body Weight	kg	65.5	85	152	212	215	282	845	921	1303	1434	2295
2	Total Weight（kg）	Side	90	120	250	380	335	559	1653	1770	2440	2570
		Top	100	150	298	386	410	637	1847	1997	2700	3065	4227
		Box	126	152	295	375	451	733	1893	1825	3150	3433
3	Operating pressure	kg/m²	90-120	90-120	110-140	120-150	120-160	130-160	160-180	160-180	170-200	170-200	180-210
4	Oil Flow	I/Min	20-40	20-50	40-70	50-90	50-100	60-100	130-150	120-180	180-240	200-260	220-270
5	Impact Frequency	bpm	700-1200	600-1100	500-900	400-800	400-800	400-800	400-800	350-500	300-450	250-400	250-320
6	Dia. of hose	mm	12.7	12.7	12.7	12.7	12.7	19.05	25.4	25.4	31.75	31.75	31.75
6	Dia. of hose	Inch	1/2	1/2	1/2	1/2	1/2	3/4	1	1	1-1/4	1-1/4	1-1/4
7	Dia. of Tool（M/W/B/C）	mm	45	53	68	75	80	85	135	140	155	165	185
8	Length of Tool	mm	500	580	700	710	711	745	1200	1300	1500	1500	1600
9	Suitable Carrier Bucket Volume	m³	0.03-0.1	0.06-0.2	0.15-0.3	0.2-0.35	0.2-0.35	0.25-0.5	0.6-0.8	0.7-0.9	1.1-1.4	1.2-1.7	1.4-2.5
10	Suitable Carrier Weight	Ton	1.2-3.0	2.5-4.5	4.0-7.0	6.0-9.0	6.0-9.0	7.0-14	18-26	18-26	28-35	30-45	44-60
11	Accumulator Pressure	kg/cm²	N/A	N/A	N/A	N/A	N/A	N/A	60±0.5	N/A	60±0.5	55-60	60±0.5
12	Backhead N2 Pressure	kg/cm²	16.5	16.5	16.5	16.5	16.5	16.5	6±0.5	16.5	16.5	16.5	16±0.5

2.How to choose right chisel

CHISEL TYPE	APPLICATION
1.Moil Point Type(M)	Universal
2.Conical Type(C)	Multiple Purpose
3.H-wedge Type(H)	Trenching, Asphalt, Concrete
4.V-wedge Type(V)	Trenching, Asphalt, Concrete
5.Blunt Type(B)	Boulders Concrete

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Hydraulic breaker specification

Hydraulic breaker specification

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