Excavator rock breaker RHB68

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Product Description

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

Spare Parts

hydraulic breaker spare parts

· 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:

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:

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

Choose Right Model

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/m⊃2;	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	m⊃3;	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/cm⊃2;	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/cm⊃2;	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