XZ320 Horizontal directional drill is mainly used for laying and replacing various underground pipelines (pipeline, cables and so on) under no digging the ground surface, it has compact structure, and beautiful appearance. The main technique achieved the China most advanced level. The main parts and corollary equipment are all China famous brand products. It has very good features, and the whole machine has very stable and reliable working condition and durability.

The main structure and functions: XZ320 Horizontal directional drill is one kind directional drilling device. The whole machine consists of chassis, powering bore head, drill frame, engine system, and clamp, anchoring system, drill tools, hydraulic system, electric system, mud pump system and other parts.

Application: clay, sand, pebble and others geological condition. Working environment temperature: -10℃~+45℃.

Chassis mainly include machine stand, left and right travelling device. On the rear of the machine frame has the frog hydraulic support leg.

The travel device includes crawler intension device, rubber pedrail, driving wheel, guide wheel, thrust wheel and planetary gearbox. Travel reducer is Invisible planetary gearbox (include the motor) and hydrostatic transmission driven, low noise running; big output torque.

Crawler intension device is consists of oil cylinder, guide wheel, oil cup and so on. The function is keeping the pedrail with curtain tension rate, adopting grease lubricant tensioning. This machine adopts rubber pedrail to guarantee the less affect to the road surface, lawn, and landscape.

Powerful engine system: The engine system includes engine, water radiator, air filter, muffler and so on. It the power source of the whole machine. The engine is shangchai 6 cylinders water cooling turbo charging engine, rated power is 140kw, the max. Rotary speed is 2300rpm; it can supply 320Kn thrusting and back pulling strength and 12000N.M torque, guarantee the drill can work in any complicated geological condition and finish the pipe laying work. Oil-water radiator is air blast radiator. The maintenance is much easy and economical.

Hydraulic system: Adopt gear pump driving the hydraulic system; it has very good anti-pollution ability. The power head rotating and thrusting are driven by different oil pumps, which avoid all actions affecting each other under pipes laying work. The key hydraulic components adopt famous brands, which greatly improve the whole machine stability.

Power head: it is the main working mechanism; it adopts 4 hydraulic motor parallel connections driving the inputting gears of the powered head, through primary gear reducing the speed, and output the power to the drill collar.

Hydraulic motor drives the power head output shaft, mainly drive the drill pipe drill head steering, drilling and back pulling, the hollow hole of the drill collar is the mud entering passage to the drill pipe.

High speed power head: the power head rotary speed is high under the drill don't reduce the rotary torque and push-pull strength, which guarantee the high efficiency pipe laying work. High speed drilling function can be performed during the drill pipe assembling and disassembling for the power head main shaft thrusting and back pulling, which greatly improves the working efficiency. The power head can high speed rotate under constructing  guide hole and small diameter hole, which improves the working efficiency.

Double speed power heads: Control by one switch. Low speed in drilling and pulling back work assures the fluent construction. And under joining and uninstalling the drilling stem and go and back with no loading ,the power head will speed up sliding to reduce the time and improve the working efficiency.

Drill frame: drill frame is the sliding and support device of the power drill head, adopting motor push pull mechanism driving the power head sliding on the guider, supporting the whole machine pull push and the torque rotating functions. The drill frame is welded by high intension Quadrate Steel Tube Column, the angle adjustment is carried out through oil cylinder, and the push-pull device of the powered head is carried out through hydraulic cylinder.

Engine model	Shangchai D6114ZG
Rated power of engine	140kW/2300rpm
Back pulling force/ thrusting force	320kN/320kN (auxiliary boosting device can reach to 400kN)
The max. torque of the power head	12000N.m
The operation speed of the power head	20m/min
The rotary speed of power head	0~140rpm
The max. Reamer diameter	φ800mm
The drilling hole diameter	Φ127mm
Drilling pipe length (single stem)	3m
Drilling pipe diameter	φ73mm
The max. bending radius of the drill pipe( to the utmost)	65m
The max. flow of mud pump	320 L/min
The max. pressure of mud pump	80bar/8MPa
Drilling  angle	10°~20°
Travel speed	3km/h
The max. gradeability	30%
OPERATING WEIGHT	10500 kg
Dimension (L*W*H) under transporting	7662*2162*2450 mm