ZDL204DD underground loader : Trackless shovel loading short distance transportation equipment.

The ZDL204DD 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.

Technical Characteristics:

• Power System: The power system adopts Deutz AG water-cooled low pollution low-speed high torque engine;

• Transmission: The power transmission system adopts DANAor Top Chinese brands of gearbox and torque converter, domestic spring brake hydraulic release drive axle, and mining cutting resistant pneumatic tires;

• Braking System: The service brake adopts wet multi disc spring appliedand hydraulic release brake; MICO charging 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: Hydraulic power steering system with a single steering cylinder for the steering system;

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 ZDL204DD underground loader:

1. Tunnel Specifications:

• Suitable for tunnels with a cross-sectional size of 2.5meters (height) ×2.5meters (width) and above.
• Requires a firm top plate.
• Minimum turning radius of ≥ 5.3 meterson 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).
• 

Technical Parameters

1.1 Overall dimensions

Rated load: 4000kg

Overall length:  7230mm

Overall width:   1750mm

Overall height (including the top of the driver’s cab):  2100mm

Bucket capacity (SAE stacking) : 2m3

Maximum lifting height: 4075mm

Maximum unloading height: 1790mm

Unloading angle： 40 °

Wheelbase ：2580mm

Minimum ground clearance ≥ 240mm

Departure angle： 14 °

1.2 Machine weight

Operation weight： 13100kg

Full load weight：    17100kg

1.3 Operational Capability

Travel speed

Forward/Reverse:  0~25km/h

Climbing ability 14 °: 3.4km/h

Maximum traction force: 110KN

Maximum Scraping Force: (SAE) 90KN

1.4 Fuel Tank

Fuel tank (L) :130

Hydraulic oil tank (L): 160

1.5 Steering

Central articulated hydraulic power steering

Minimum turning radius– inside:       2860 ± 200mm

Outside：  5300 ± 200mm

2、 Main configuration of the whole machine

2.1 Engine

Manufacturer: DEUTZ

Model: F6L914 (Imported made in Germany)

Type: Air-cooled diesel engine

Rated power:  84KW/2300rpm

2.2 Hydraulic torque converter

Model C272 (USA DANA)

2.3 Transmission

Model RT32000 (USA DANA)

Type: Power Shift

2.4 Drive axle

Manufacturer: Xuzhou Axle

Model: WJ2DN-F/R

Rigid planetary transmission axle with type NO-SPIN anti-skid differentials

2.5 Hydraulic system

Wet multi disc brake with working brake

Parking brake: Spring Applied Hydraulic Release

Multi way valve: USA PARKER

Pump: European brand PERMCO