1690 Skid-Mount Horizontal Grinder WD1690M

The WD1690M combines a controlled horizontal infeed system with WeiDong’s 1690-series grinding platform. Its skid-mount configuration is designed for fixed or semi-fixed processing facilities. The listed 408 kW / 550HP power configuration supports the main grinding system, while hydraulic auxiliary systems control functions such as feeding and discharge. The 1620 x 640 mm inlet is designed for long wood, branches, forestry residue, and prepared biomass feedstock. Actual throughput and finished particle size depend on feed material, moisture, contamination, rotor selection, screen configuration, and feeding conditions. Final transport, electrical, emissions, and public-road requirements are confirmed for each order and destination market.

Why choose the WD1690M

Choose WD1690M when the grinder will operate mainly in one location but diesel independence remains important. The skid arrangement concentrates the build on processing and plant integration rather than travel.

Recommended applications

• Fixed yards without reliable industrial power
• Custom feed and discharge line integration
• Larger feed dimensions requiring the 1690 platform

Recommended feed materials

• Long wood and large branches
• Forestry residue
• Sawmill and pallet waste after contamination review
• Prepared biomass feedstock

Materials to confirm before ordering

• Large irregular stumps better suited to tub feeding
• Construction wood containing metal
• Material with heavy soil or stone contamination

When another configuration fits better

• Regular transfer between sites requires a wheeled chassis
• Uneven ground requires crawler repositioning
• Stable industrial power makes electric skid-mount preferable

Options confirmed for each project

• Rotor and screen selected for the feedstock
• Feed conveyor and discharge arrangement
• Magnetic separation where metal contamination is expected
• Remote control and project-specific safety equipment
• Engine, motor and electrical brands subject to configuration

What changes actual capacity

• Feed material type, density and hardness
• Maximum piece size and feeding consistency
• Moisture content
• Soil, metal, stone and other contamination
• Rotor, cutter or hammer configuration
• Screen opening and required output size
• Operator practice and downstream material handling

Information needed for a quotation

1. Material description, photos or a working video
2. Maximum feed dimensions and typical piece size
3. Moisture level and known contamination
4. Required hourly throughput
5. Target output size and downstream use
6. Ground conditions and required mobility
7. Available electrical supply for electric configurations
8. Destination country and transport requirements

Performance note: Capacity and final particle size vary with feedstock type, moisture, contamination, rotor, screen and feeding conditions. Confirm the final configuration through material testing and the project specification.