Chain-Flight Turner

Chain-Flight Turner

The Robust and High-Capacity Solution for Aerating Large-Scale Windrows and Static Piles

The Chain-Flight Turner is a powerful and durable machine engineered for the effective turning and aeration of large-scale compost windrows and static piles, particularly those comprised of heavy, wet, or fibrous organic materials like raw livestock manure. It utilizes a series of robust, linked flights (scrapers) mounted on a heavy-duty chain to lift, move, and blend the outer layers of the pile into its core. This process introduces essential oxygen, regulates temperature and moisture, and accelerates the aerobic decomposition cycle in open-air or covered composting facilities.

Chain-Flight Turner

Key Features

  • Drag Chain with Heavy-Duty Flights

    The core mechanism features a driven chain equipped with strong steel flights that scrape, lift, and carry material from the front and bottom of the pile, depositing it onto the top and rear to reform the windrow.

  • High Torque & Tractive Power

    Designed to handle dense, high-moisture materials (like fresh manure) that would stall other turner types, thanks to powerful hydraulic or mechanical drives and substantial machine weight.

  • Windrow Shaping Capability

    As it moves forward, the machine's design naturally reshapes the pile into a uniform trapezoidal windrow with optimal porosity for passive aeration.

  • High Throughput

    Capable of processing large volumes of material in a single pass, making it efficient for extensive composting operations with long windrows.

  • Versatile Mobility

    Available in self-propelled, tractor-pulled, or track-guided configurations to suit different site layouts and operational scales.

Advantages

  • Ideal for Raw, Heavy Feedstocks

    Uniquely capable of processing raw, wet, and uncomposted manure and agricultural wastes directly, without the need for extensive pre-mixing or bulking agent addition.

  • Large-Scale Processing Efficiency

    Well-suited for operations with significant daily feedstock volumes and ample land area, offering a high processing capacity per machine pass.

  • Robust & Low-Maintenance Design

    Built with simple, heavy-duty components that withstand abrasive and corrosive conditions with minimal downtime for maintenance.

  • Effective Aeration & Moisture Redistribution

    The deep digging and turning action effectively breaks up anaerobic zones and evenly distributes moisture and heat throughout the entire pile mass.

  • Lower Initial Infrastructure Cost

    Compared to in-vessel or trough systems, it requires a lower capital investment in fixed infrastructure, primarily needing a compacted pad or pavement.

Applicable Raw Materials

  • Livestock Manure

    Poultry litter, dairy cow manure, pig slurry solids, and horse manure.

  • Agricultural Residues

    Corn stover, straw, spoiled silage, and other crop wastes.

  • Yard & Green Waste

    Leaves, grass clippings, and brush (often as a bulking agent with manure).

  • Food Processing Waste

    When mixed with drier bulking agents to achieve suitable structure.

  • Biogas Digestate

    For post-digestion composting and stabilization.

Basic Structure & Components

Chain-Flight Turner
Main Frame & Chassis

A heavy welded steel frame that supports all components, often mounted on large, heavy-duty tires or tracks.

Flighted Conveyor Assembly

The central working unit, consisting of a drive sprocket, a tension tail sprocket, and a continuous loop of chain with welded or bolted steel flights.

Material Engagement Hood

A front hood or shield that guides the pile into the path of the ascending flights.

Drive System

A high-horsepower diesel engine or a hydraulic power pack that drives the chain conveyor and the propulsion system.

Propulsion System

For self-propelled models, this includes an axle, transmission, and large drive wheels or tracks.

Operator Cab & Controls

An enclosed or open cab with controls for speed, conveyor operation, and steering.

Windrow Shaping Deflector

A rear plate or shield that shapes the discharged material into a new, uniform windrow.

Height Adjustment

Often includes a mechanism to adjust the working depth of the flights.

Technical Data

Model specification

yield

Equipment span

Material thickness

power

Fermentation tank length* width* depth

Fang/day

tons/year

FLB2540D

120

1.5

10m

1.5-1.7m

30kw

80x80x1.8 (single pool)

FLB2540S

240

3

10m

1.5-1.7m

30kw

80x80x1.8 (double pool)

 

Key Differentiators vs. Other Turners

The Chain-Flight Turner is designed for open windrows on a pad, offering high mobility and capacity for raw, heavy materials with a lower infrastructure investment. The Trough-Type Turner is for enclosed, controlled channels, offering superior process control, environmental containment, and space efficiency but requires a significant fixed plant investment. They serve fundamentally different composting methodologies.

Drum Turners use a rapidly rotating drum with flails to aerate and shred material, often creating a finer product. Chain-Flight Turners use a slower, more powerful dragging and lifting action that is less prone to wrapping with long fibrous materials and better at handling extremely wet, dense masses.

Screw Turners excel at gentle, thorough blending and lateral movement of material, often in more controlled settings. Chain-Flight Turners are more robust for heavy-duty, primary turning of raw feedstocks, providing greater mixing depth and pile restructuring power.

Offers dramatically superior aeration efficiency, consistency, and labor savings. A single machine pass provides systematic and complete pile turnover, which is unachievable with bucket-based methods.

It is the workhorse of large-scale, open-air agricultural and livestock waste composting operations, where the primary goals are reliable, high-volume processing of challenging raw materials, effective aeration, and controlled decomposition with a manageable capital investment.