ZDL717 underground Loader :Trackless shovel loading short distance transportation equipment. 

The ZDL717 underground Loader mainly used in conjunction with mining trucks in underground excavation and mining operations. Shovel loading of ore and various materials can greatly improve operational efficiency and is an important equipment for achieving trackless mining.

     1.Technical Characteristics:

• Power System:The power system adopts Cummins QSZ13-C380-30 Water-cooled low pollution low-speed high torque engine
• Transmission:The power transmission system adopts DANA gearbox and torque converter, DANA spring brake hydraulic release drive axle, and mining cutting resistant pneumatic tires;
• Braking System:The service brake adopts wet multi disc spring brake and hydraulic release brake; MICO filling valve and brake valve; The parking brake adopts spring brakes on the drive axle for braking;
• Frame:The frame is a central articulated structure, with the rear axle swinging left and right around the center of the frame to improve the adhesion performance of the entire machine;
• Steering:The steering system is a hydraulic power steering system with dual sided steering cylinders;

     2.Safety Measures:

• Safety Gear: Operators must wear safety helmets, carry self-rescue devices, and use mining lamps when entering the well.
• Regular Maintenance: Regular inspections and prompt addressing of hidden dangers.
• No Maintenance During Operation: Strictly prohibited to conduct maintenance while the machine is running.
• Safety During Welding/Cutting: Confirm absence of flammable or explosive materials before maintenance.
• Exhaust Pipe Precautions: Avoid physical contact with the hot exhaust pipe.
• Hydraulic System Maintenance: Pressure must be relieved before starting any repairs.

Application conditions for the ZDL717 underground Loader :

    1.Tunnel Specifications:

• Suitable for tunnels with a cross-sectional size of 4meters (height) ×4meters (width) and above.
• Requires a firm top plate.
• Minimum turning radius of ≥ 7meterson the outside.
• Road slope should be ≤ 14°.
• Adequate ventilation and drainagein the workplace.

     2.Environmental Factors:

• Ambient temperature within the tunnel: -5°C to 40°C.
• Maximum relative humidity (at 25°C): Not more than 85%.
• Altitude of usage location: Not exceeding 1000 meters.
• In high-altitude areas (above 1000 meters), power reductionis required for operation.

     3.Fuel Requirements:

• The sulfur content of the fuel used in this machine must not exceed 0.2%.

     4.Safety Precautions:

• Strictly prohibitedin places with flammable and explosive gases(such as gas and coal dust).

 Outer Dimensions

    1.Technical parameters

• Rated load capacity:17 t (Full load)
• Bucket capacity (stacking):7 m ³
• Maximum driving speed in gear I:0-22 km/h
• Working time:13 seconds
• Maximum climbing capacity (heavy load): 25%
• Maximum traction force:350 KN
• Turning radius:Inner side 3519 mmOutside 7103 mm
• Maximum height of the machine during unloading:2444 mm
• Maximum unloading angle:40 °
• Steering angle:± 40 °
• Minimum ground clearance: 350 mm
• Overall dimensions: length ³ wide ³ Height: 11000 mm ³ 2866 mm ³ 2500 mm
• Operating weight of the entire machine:42 tons

     2.Engine

• Engine: Cummins QSZ13-C380 water-cooled low pollution engine
• Rated power/rated speed: 286 kW/1900 r/min
• Maximum output torque: 1900 N · m @ 1500 r/min
• Starting method: Electric start
• Exhaust gas purification method: Catalytic purification method
• Throttle control: Williams electronic throttle controller
• Emission standard: Tier 3/Euro Ⅲ/Chinese National 3

     3.Transmission system

• Transmission model: RC6420,Chinese Equivalent of DANA
• Torque converter model: YJ380FK,Chinese Equivalent of DANA
• Drive axle model: DANA 53R300
• Total speed ratio:30.4
• Tires: Pneumatic tires

4.Braking system

• Working brake pump:P2075/2025
• Displacement:75/25ml/r
• Maximum system pressure:20 MPa
• Service braking:Wet multi disc spring brake
• Brake valve model:MICO GL820-161-138 (ZL)
• Release pressure:138 bar
• Filling valve model:06-463-022
• Parking brake:Spring brake on the drive axle
• Spring brake, hydraulic brake release
• Parking brake valve model: RA3/3/2/G-3

5.Steering system

• Type:Central hinge, hydraulic steering
• Steering working pump: P2075/2025 Displacement: 75ml/r
• Maximum pressure of steering system: 20 MPa
• Steering multi way valve:K170LS
• Steering cylinder diameter/rod diameter ³ Number of cylinders: φ 150/ φ 90 mm ³ two

6.Working system

• Working directional valve:M200LS-2-4588
• Lift cylinder diameter/rod diameter ³ Number of cylinders: φ 160/ φ 100 mm ³ two
• Bucket cylinder diameter/rod diameter ³ Number of cylinders: φ 260/ φ 160 mm ³ two
• Maximum pressure of working system:  24MPa

7.Electrical system

• System voltage: 24V DC
• Starting motor voltage/power: 24V/6kW
• Lighting: 2 front headlights, 2 ³ 75W, 24V, 2 rear headlights, 2 ³ 75W, 24V
• 2 cab ceiling lights, 24 V

8.Fuel tank capacity

• Hydraulic oil tank:540 L
• Fuel tank:450 L
• Transmission: 32 L
• Drive axle main transmission part:36L ³ two
• Drive axle wheel reduction part:6.5 L ³ four
• Engine lubricating oil:38L