Brief Introduction
TONY dual shaft hammer mill is a hammer mill widely used for coarse, fine, and micro-crushing of materials. Compared to traditional single-shaft mills, it has a greater shear force between it and the material, which can greatly increase the output under the condition of equal motor power. This mill is a new type of high-efficiency crushing equipment that can crush various agricultural wastes such as biomass straw, rice straw, wood, and branches into materials of the required size. It can also assist pelletizers to achieve better pelleting.
TONY TFS series dual-shaft high-efficiency hammer mill is ideal for finely pulverizing various materials, including wood chips, sawdust, grass, straw, corn, weeds, and soybeans. Its internal water-cooling structure prevents damage to components caused by friction during prolonged operation. In addition to biomass, it can also grind animal feed such as soybeans, corn, and grains, as well as livestock and poultry manure and fertilizer materials such as chemicals. It is primarily used in lumber mills, feed mills, plantations, and organic fertilizer plants.
Working Principle
Dual-Shaft Operating Principle 1. Core Structure Dual-Rotor System: Two parallel main shafts (rotating at the same or different speeds) are equipped with staggered hammers, creating counter-rotating or co-rotating modes. Crushing Chamber Design: The inner chamber wall is lined with a wear-resistant liner, and the bottom is equipped with an adjustable screen plate (or no screen plate). Some models are equipped with shear blades or toothed plates. Drive System: Dual independent motors transmit power via belts or couplings, and can be equipped with a variable frequency speed control device. 2. Operating Principle After entering the feed inlet, the material is first crushed by the high-speed impact of the dual-rotor hammers. The speed difference between the two rotors generates shear force, further tearing or shearing the material (especially suitable for tough materials). The crushed particles collide and rebound with the liner, and are repeatedly struck by the hammers until they are smaller than the screen plate aperture, where they are discharged. Particles that do not meet the standard continue the crushing cycle. |
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Main Parts
 | Feed Belt Conveyor： 1.It feeds materials steadily and evenly into the crusher. 2.The elastic belt and cushioned rollers reduce wear on the crusher inlet and hammers. 3.VFD allows automatic feeding speed adjustment. 4.Belt width and size can be customized. 5.Built with galvanized steel, the TONY conveyor is corrosion-resistant and durable. |
Dual Shaft Hammer Mill: 1.The double-shaft high-efficiency crusher adopts a double-shaft rotating blade design, which can quickly crush larger items into small pieces, improving the crushing efficiency. 2. Widely applicable: This crusher is suitable for various types of waste items, such as metal, plastic, wood, etc., and has a wide range of applications. 3.Environmental protection and energy saving: The double-shaft high-efficiency crusher adopts a closed design, which reduces dust and noise pollution, while having low operating costs and energy saving and environmental protection. |  |
 | Blower 1.The blower on the Dual Shaft hammer mill discharges the dust generated during the industrial produ ction process from the working area through strong suction, effectively reducing the concentration of dust in the air, thereby improving the working environment. 2. Its high efficiency is not only reflected in its strong suction, but also in its innovation and optimization in design, such as the use of high-efficiency blades, intelligent adjustment systems, etc., to ensure that the dust removal effect is guaranteed while achieving the purpose of energy saving and consumption reduction. |
Cyclone 1.The main purpose of the Cyclone in the high-efficiency hammer mill is to separate and collect gas and solids, especially when processing materials containing a large amount of dust, it can effectively reduce dust emissions and improve the working environment. 2.Cyclone dust collector, also known as cyclone separator, is widely used in industrial production such as food and medicine, and is particularly suitable for processing materials with coarse dust particles and high dust concentration. |  |
 | Air-Lock 1.It blocks outside air ingress. 2.Fitted below the cyclone at the pulverizer outlet, this air lock cuts dust, improves working conditions and ensures stable discharge. 3.TONY manufactures it in-house for reliable quality. 4.Contact TONY for spare part quotations. |
Galvanized Dust Collector 1. Contaminated air streams go through filter elements, and suspended dust particles are held on the outer layer and inner structure of the filter medium. 2. Inertial collision and intercepting effect: Larger dust granules hit fiber networks on the air path and stay trapped. 3. This equipment confines fine solid waste from production processes to stop them escaping to ambient air. 4. This filtering method limits pollutant discharge, meets environmental regulatory standards and purifies outgoing air. |  |
 | Pipe 1.When the hammer mill is in operation, raw materials flow into the grinding cavity. Fast-spinning hammer heads strike and pulverize the material, producing massive dust particulates. 2.Negative suction airflow extracts dust at emission points and delivers these particles to the dust removal device. 3.Restrain dust diffusion inside the workshop, sustain neat working surroundings and protect workers’ physical well-being. 4.Lessen dust-triggered mechanical abrasion, such as motor and bearing overheating resulting from accumulated dust. |
Electrical Control Cabinet 1. The electric control assembly manages crusher start and stop actions, keeps tabs on operating parameters and incorporates fault protection functions for safety. 2. Power control: It adjusts the main motor and auxiliary power units, including feed conveyors and dust removal fans. 3. Safety protection: Upon detection of overload, short circuit, missing phase or overheated bearings, the system cuts power automatically and sends out alerts to prevent motor damage, rotor blockage and shaft breakage. 4. Condition observation: Real-time readings of electric current, total operating time and fault codes are presented on the control panel, enabling staff to check machine operating state readily. |  |
 | Discharge Belt Conveyor： 1. It carries ground raw material away from the crusher outlet toward the next production links. 2. It stops material piling and jamming at the discharging point so the crushing process runs steadily and productively. 3. A variable frequency drive unit is installed, so its travel speed is adjustable to suit the output requirement of post-stage machinery. 4. Fabricated with galvanized steel, this TONY conveyor offers dependable rust-proof capability and prolonged working lifespan. |
Spare Parts
Parameter
TONY Dual Shaft Hammer Mill Models | ||||||
Type | Model | Power(KW) | Capacity(T/H) | Hammer QTY | Size:L*W*H(MM) | Weight(T) |
Dual Shaft | TFS65*75 | 55*2-75*2 | 4-5 | 144 | 3000*1900*1700 | 6.5 |
TFS65*100 | 90*2-110*2 | 5-7 | 192 | 3500*2900*1700 | 7.8 | |
Suitable Raw Materials
Main Applicable Raw Materials
1.Agriculture and Biomass:
Crop straw (corn stalks, rice stalks, wheat stalks), peanut shells, corn cobs, sugarcane bagasse;
Grain by-products (rice husks, bran, soybean meal), forage grass, hay.
2.Wood and Forestry:
Tree branches, shrub branches, wood scraps, sawdust, wood shavings (must be pre-processed in a chipper).
3.Other:
Food waste (fruit peels, vegetable residues), pharmaceutical waste (herbal roots), organic waste, etc.
What Are The Application Areas?
Applicable Scenarios
Biomass Pellet Plants: Crush wood chips into fine sawdust (3-8mm) for use as pellet feedstock;
Artificial Board Industry: Crush wood chips into fibrous sawdust for particleboard and fiberboard production;
Paper Industry: Process wood chips for pulping;
Organic Fertilizer Production: Crush wood waste and mix it with other raw materials for fermentation.
Details
Unique Advantages
1. High Crushing Efficiency
Dual-rotor synergy: Compared to single-shaft models, the crushing ratio (input particle size / output particle size) can be increased by 1.5-2 times, and the processing capacity can be increased by 30%-50%.
Shear + impact combined crushing: The crushing effect on fibrous and tough materials (such as rubber and straw) is significantly better than that of a single-shaft hammer mill.
2. Wide Material Adaptability
Processable Material Types:
Highly tough materials: waste tires, plastics, wood, etc.
Fiber-containing materials: straw, bark, Chinese medicinal materials, etc.
Mixed materials: furniture scrap, etc.
3. Controllable Finished Product Particle Size
By adjusting the speed difference between the two rotors, the screen plate aperture, or adding a classifier, precise control of the particle size range from 1-50mm can be achieved, even achieving ultra-fine crushing (above 100 mesh).
4. High Equipment Reliability
Overload Protection: A hydraulic or spring-loaded over-iron protection device is installed to prevent metal impurities from jamming the rotor.
Optimized Wear-Resistant Components: The hammer head utilizes high-chromium alloy or tungsten carbide coating, extending the liner life by 20%-30% compared to single-shaft models.
In The Pellet Production Line
Wood is the main feedstock for wood pellet making. How to build a proper wood pellet production line?
A drum wood chipper first cuts raw wood into 2.5–3.5 cm wood chips. Next, a hammer mill pulverizes chips into 6–12 mm sawdust. Raw wood normally contains 30–50% moisture, so a dryer is often needed. A vertical ring die pellet mill compresses dried sawdust into premium wood pellets. Finished pellets go through cooling before packing and storage for easy shipping and sale.
This is the standard pellet production workflow. Follow safety rules on site and perform regular equipment maintenance to keep stable output and good pellet quality.
Maintenance
1.Daily Cleaning and Inspection:
Promptly clear residual material from the machine after each shift to prevent accumulation, caking, and corrosion of the machine body. Inspect blades and hammers for wear, looseness, or chipping; address any abnormalities immediately by tightening or replacing parts to avoid operating the equipment in a compromised state.
2.Lubrication and Maintenance:
Regularly apply specialized lubricating oil and grease to the gearbox and bearing housings to ensure adequate lubrication of drive components. This prevents overheating due to dry friction, abnormal noise, and component damage. Strictly adhere to replacement schedules for aged grease to extend the service life of bearings and gearboxes.
3.Electrical and Control System Inspection:
Conduct daily checks on the motor, wiring, PLC control system, and overload protection functions. Ensure that reverse rotation and shutdown protection mechanisms are responsive and reliable, and eliminate safety hazards such as aging wiring or electrical leakage.
4.Screen and Clearance Adjustment:
Regularly inspect the condition of the screens and replace them promptly if damaged. Calibrate the clearance between cutting elements based on required output particle size to ensure uniform crushing and high production efficiency, while preventing material clogging or backflow.
5.Periodic Comprehensive Overhaul:
After prolonged continuous operation, perform a thorough inspection and tightening of machine body bolts, the frame, and the cutter shaft. Correct any deformed components and clear away entangled debris to ensure stable equipment operation and significantly reduce the failure rate.
Customer Cases
TONY Shipments
Company Advantages
1. Deep Technical Expertise: Years of specialization in biomass equipment; solutions that overcome industry pain points such as slagging, clogging, and low thermal efficiency, delivering superior energy performance. 2. Scenario-Specific Customization: Tailored, end-to-end solutions designed for specific biomass feedstocks, production capacities, and site conditions. 3. Precision Engineering & Durability: High-temperature, wear-resistant technology and rigorous end-to-end quality control; supports 24/7 continuous operation with an exceptionally low failure rate. 4. Energy-Efficient & Eco-Friendly: High resource utilization and ultra-low emissions; fully compliant with environmental regulations while significantly reducing energy costs. 5. Direct Factory Supply: No middlemen, offering excellent value for money, ample production capacity, and reliable, controllable delivery schedules. 6.Comprehensive, Attentive Service: One-stop service covering site assessment, installation, commissioning, and maintenance, backed by lifelong technical support. |  |
