21kw China Hydraulic Rock Drill

• Customization: Available
• After-sales Service: Remote Technical Support
• Warranty: 1 Year
• Model NO.: HC95
• Certification: CE, ISO 9001:2000, ISO 9001:2008
• Condition: New
• Motor: Hydraulic Hammer
• Drill Hole Diameter: 250-300mm
• Drill Hole Depth: <100m
• Bit Type: Diamond Bit
• Drilling Way: Rotary
• Power Outlet: 21kw
• Power Inlet: 30-40kw
• Torque: 480-750nm
• Strike Flow: 95-118L/Min
• Strike Pressure: 165-200 Bar
• Strike Frequency: 55-63Hz
• Transport Package: Wooden Package
• Specification: HC95
• Trademark: Montabert
• Origin: France
• HS Code: 8430390000
• Production Capacity: 10/Week

Product Description

     
   Rock drills work according to the principle of impact crushing. During operation, the piston undergoes high-frequency reciprocating motion, continuously impacting the drill tail. Under the action of impact force, the pointed wedge shaped drill bit crushes the rock and chisels it into a certain depth, forming a dent. After the piston returns, the drill bit rotates at a certain angle, and the piston moves forward. When it impacts the drill tail again, a new dent is formed. The fan-shaped rock block between two indentations is sheared by the horizontal force generated by the drill bit. The piston continuously impacts the tail of the drill bit and continuously inputs compressed air or pressure water from the center hole of the drill bit to discharge the rock slag outside the hole, forming a circular drilling hole of a certain depth.   
    Montabert  brand rock drills are currently the leading brand of rock drills, with mature technology, leading technology, and excellent quality. They are widely used in various fields such as mining, tunnel excavation, water conservancy engineering, and road construction. They have the characteristics of high efficiency and high return rate, and can effectively reduce engineering risks and labor intensity.

Power class	kw	21
Hole range(typical)  (mini-maxi)	mm	45-76
Strike flow  (mini-maxi)	l/mn	95-118
Strike pressure  (mini-maxi)	bar	165-200
Strike frequency  (mini-maxi)	Hz	55-63
Energy per blow (mini-maxi)	J	252-330
Power out (mini-maxi)	kw	14-21
Percussion inlet power(mini-maxi)	kw	26-39
Rotation motor capacity	cm³	100/125/160
Rotation flow motor maxi	l/mn	48/60/75
Max.rotation speed motor	t/mn	303/296
Max.rotation torque motor	Nm	477/597/764
Max.rotation pressure	bar	210
Water flushing pressure (mini-maxi)	bar	14-24
Water flushing flow (mini-maxi)	l/mn	60-120
Front guide lubrication pressure	bar	3
Front guide lubrication air flow	l/mn	300
Front guide lubrication oil	cm³/mn	0.5
Accum.Nitrogen pressure HP	bar	60
Accum.Nitrogen pressure BP	bar	5
Recommended oil viscosity	cst	ISO46
Oil viscostiy at working temperature (mini-maxi)	cst	15-30
Oil operating temperature (mini-maxi)	ºC	50to75
Thrust feed force (mini-maxi)	N	11000-13000
Collaring feed force	N	9000
Collaring strike pressure	bar	110
Percussion Back pressure
Recomended without drain	bar	<5
Recommended with drain	bar	<5
Maximum working without drain	bar	5
Maximum working with drain	bar	12
Rotation back pressure(maxi.)	bar	30
ExternalHP line pressure(mini-maxi.)	bar	NOt Available
External HP flow approximate when no percussion	l/mn	NOt Available
Drain pressure(maxi.)if equipped	bar	2
Drain flow approximate if equipped	l/mn	10
Maxi.Retract force with reverse	N	Not Available
Percussion(optional)at 100 bar
Attention: Please consult us before using specific oil(non-inflammable, biodegradable,...).
This values are given for information, depending of drilling conditions or cofigurations.

1. What's the MOQ? 
   1 piece or unit.

     2. How about the delivery time? 
         Based on order quantity, normally it takes 20 days for production. Only 3 to 7 days if we have stock on your request size.
 
      3. How many years have you been producing hydraulic breakers and parts?
         Over 20 years.
 
     4. Quality & Service: 
         There will be strict inspection and testing for every order before shipping out. Our sales team and Technical Support will response for your        question within 24 hours (Holidays Excluded). Free replacement will provide once the failure confirmed caused by our product quality.
 
     5. What's the payment term? 
        T/T (Telegraphic Transfer) or Western Union. Pictures of products and packages will be sent to our customers before balance is paid.
 
    6. Can you produce according to customers' design? 
         Yes, we can do customized products.
 
    7. How about the package? 
    Standard exporting package.