YD440 Technical Parameters
Recommended Hole size range
Hole size range	Ø90 -130 mm	Hammer Sizes	3.5 inches / 4 inches
Drill Rod ( Pipe ) Handling system ( RHS )
Pipe Handling System		Drill Pipe dia	68 mm / 76 mm
	7+1
Drill Pipe Length	3.5 m	Max. Hole Depth w/ auto RHS	28m
Hydraulic Rotary Head
Rotation Speed	0-105 rpm	Max. Work Torque	2800 Nm
Engine
Engine Model	YC6A260L-T20	Rated Power	191 kW @ 2,000 rpm
Emission Standard	Tire 2	Fuel Tank	350L
Size
Transportation Dimensions ( w/o options ) about	9,980 mm*2,480 mm*3,200 mm	Weight	15,000kg
Compressor
Max. Work Pressure	20bar	FAD	16 m³/min
Feed Beam
Feed Driving Type	Motor - Chain	Total Length	6,865 mm
Feed travel length	4,100 mm	Feed extension	1,200 mm
Max. Feed speed	0.85 m/s	Max. Feed force	15kN
Max. Pull up force	31kN
Chassis
Max. tramming speed	3 km/h	Max. Traction force	115.4 kN
Slope Capability	30º ( add winch if >20º )	Track Frame Oscillation	± 10°
Ground Clearance	450mm
Boom Type	Heavy duty straight

YD440 has good flexibility and strong drilling ability, widely used in various drilling applications, such as the ground quarry and mine blasting hole drilling, pre-cracking drilling, gentle punching and gentle slope reduced pressure hole drilling, ultra-deep hole drilling, to meet the production efficiency requirements.
 
Product Features:
1.Heavy duty motor and chain feed beam, stable and reliable.
2.Box design feed beam, strong and flexible.
3.Rock falling protected FOPS and rollover proof ROPS, all view AC cab with noise and shock proof.
4.All enclosed structural rig, pneumatic spring protection doors for easier maintenance and service.
5.Round table rod ( pipe) change system, excellent for deep hole drilling.
6.3.5" / 4”hammer rotary head, torque up to 2,800 Nm.
 
Excellent return on investment:
YD440 working pressure up to 20 bar with 3.5 m drill pipe and choices of 2 dia. sizes to choose from, good for foot hole drilling and drilling speed much faster than the competitive products.
 
High efficiency, energy saving, environment friendly, safety:
Dual stage air compressor for excellent energy performance ratio and high air pressure drilling. Excellent Fuel economy better for energy saving and environment.
High torque rotary head to conquer jamming in most rock formations.
Two stage dust collection system to meet environment requirement.
All closed AC Cab for better view, comfortable and safe operation.
New style feed beam, excellent for direction control and stability to achieve high precision drilling.
 
Flexibility and maneuverability:
YD440 with excellent tramming ability for fast and safe moving between job sites. With adequate ground clearance and 10° oscillation on heavy duty track frame, great off road capabilities due to low gravity and balanced weight distribution. Excellent vertical and various inclined drilling even on slopes.
 
Convenient maintenance and service access:
 
YD440 design in mind with maintenance and service convenience at the beginning. With spacious service room, all maintenance access points easy to reach. Marked and labeled at both ends of hoses & pipes and electrical wires & cables with ring labels for easier service access.


Terrace slope is vertical, produce the better economic benefits:
 
Pre-splitting by YD440 for higher and narrower benches and sharper slope to reduce waste and less excavation, in turn to reduce dilution rate for higher production rate and better profits for the mines.