WOOD HAMMER MILL

A wood hammer mill is a specialized crusher for crushing the wood waste into wood sawdust. It can running 24hours continuously, stably, and efficiently process both dry and high-moisture wood waste.

WOOD HAMMER MILL FOR SALE

From Wood Logs to Sawdust – All-in-One Grinding Solution, Simple to Operate, Easy to Maintain – Save Time & Labor

A wood hammer mill, also known as a wood chips hammer mill, is a complete system including a feed conveyor, a hammer mill unit, a high-efficiency cyclone separator, a dust collector, and a sawdust discharge system. It uses high-speed rotating hammers to crush wood chips or blocks into wood sawdust directly, used in biomass pellet/briquette plants, boilers, power plants, etc. We offer a full range of models from small to large to meet your different capacity needs. Wood hammer mill machine are mainly used in industries and fields such as wood waste recycling, pallet and board production, and biomass fuel production. Their applications are wide-ranging, and they generally require some customized processing based on different raw material characteristics, such as size, moisture content, and final milling fineness requirements.

WOOD HAMMER MILL TYPES AND MODELS FOR CHOOSING

Model – SC500
Motor power -18.5KW
Final size – 3-10mm choosable
Application- The small wood chip hammer mill is used for home use. It’s equipped with two feeding ports, which can handle wood chips and wood branches together.It has stable operation, is designed for small-scale production, economical and cost-effective.

Model – KXCD6527
Motor power -22KW
Final size – 3-10mm choosable
Application- Its output can reach 600-800kgs/h. It is a small hammer mill for wood chips, usually used in small wood pellet production lines. Because its output is stable and its energy consumption is low.

Model – S2161000
Motor power -55+90KW
Final size – 3-10mm choosable
Application- it combines both wood chipping machine and wood hammer mill. It can directly process logs, branches, veneer and other wood waste into sawdust. It has a compact structure, fitting for medium-sized factory wood waste recycling and grinding solutions.

Model – KXCD series
Motor power -75KW-160KW
Final size – 10-16mm choosable
Application- It is suitable for processing wet wood waste with high moisture content. Wet wood often faces problems such as low output and easy clogging when crushing. In order to solve these problems, we have developed this wood crusher after many tests.

Model – KXHDHC Series
Motor power- 160KW to 350KW
Final size – 3-20mm choosable
Application- This series machine is used in large-scale, high-output projects, such as wood recycling plant with a capacity of above 10 tons/h and wood pellet production lines with a capacity of above 5 tons/hour. It can be used in conjunction with automatic feeding equipment to meet the demands of high-output, stable commercial operation.

Model – SC Series
Motor power -22KW/37KW/55KW
Final size – 3-10mm choosable
Application- This wood hammer mill has a forced feeding system, which can feed the small wood branches and wood chips into the crusher. This series is only equipped with a forced feeding system and does not have a chipping system. Therefore, it is only suitable forcrushing small-diameter wood branches.

TECHNICAL PARAMETERS

设备参数表

MODEL	MAIN MOTOR	CAPACITY	SCREEN SIZE	FULL CONFIGURATION
KXCD-6527	22KW	300-600KGS/H	3-20MM Adjustable	Feeding Belt Conveyor, Main Wood Hammer Mill, Cyclone, Dust Collector, Control Panel, Discharge System
KXCD-6555	55KW	500-1,500KGS/H
KXCD-6575	75-90KW	1,500-3,000KGS/H
KXCD-65100	75-90KW	2,000-4,000KGS/H
KXCD-65130	132KW	3,000-5,000KGS/H
HDHM1000	185KW	5,000-8,000KGS/H
HDHM1200	200KW	7,000-10,000KGS/H
HDHM1600	220KW	8,000-12,000KGS/H
HDHM2000	250KW	10,000-15,000KGS/H
HDHM3000	315KW	15,000-20,000KGS/H

WOOD HAMMER MILL MAIN USES AND APPLICATION

The hammer mills for wood boast wide applicability and compatibility with various raw materials, enabling stable and efficient crushing of diverse wooden materials. The wood hammer mill grimder can crush hardwoods such as oak and eucalyptus, as well as softwoods like pine and poplar. It can also process various waste wood materials, including scrap pallets, waste boards, wood slabs, branches, bark, roots, and offcuts. The core crushing component features highly wear-resistant hammers, ensuring durability and a longer service life. The hammers are resistant to deformation and breakage, guaranteeing continuous and stable production. The final wood sawdust size is adjustable, balancing processing efficiency with product quality.

HOW A WOOD HAMMMER MILL WORK?

The working principle of a hammer mill wood shredder, simply put, is as follows: Raw materials are first evenly fed into the wood hammer mill via an automatic feeder. Then, high-speed rotating hammers repeatedly strike and grind the material (approximately 1500-3000 rpm), pulverizing it into fine particles. The pulverized wood chips are then passed through a screen and conveyed to the next process by airflow or a belt conveyor. The entire process is completed within a sealed shredding chamber and can be summarized into four core steps: “feeding – impact shredding – screening – output.”

Uniform Feeding
This step is generally accomplished by an automatic feeder and a belt conveyor working together. Wood chips are fed into the shredder’s inlet. Feeding must be uniform, and the speed should be adjustable to prevent uneven wear on the hammers.

High-Speed Impact Crushing
The motor drives the main shaft and hammers to rotate at high speed. Upon entering the shredding chamber, the wood is immediately and violently struck by the high-speed hammers, instantly shattering it. The fragments fly at high speed towards the toothed plates on the inner wall of the shredder, where they are further broken up and bounce back onto the hammer path. Simultaneously, the rotating hammers generate a high-speed airflow, accelerating and colliding the material within this airflow, creating a “double crushing” effect. It’s important to note that the moisture content and hardness of the raw material directly determine the design of the rotor and hammers.

Sieving through the screener
A screen is installed at the bottom of the crushing chamber. Powder meeting the required fineness passes through the screen and is discharged, while material that doesn’t meet the standard remains in the chamber for further crushing until it can pass through the screen.

Output and discharging
Finally, the crushed wood chips are extracted by a blower and collected by a belt conveyor or screw conveyor for transport to the next process. The hardness of the wood, the crusher’s output, and the final size requirements will determine the design of this final conveying process.

In summary, hammer mills have a simple structure and high production efficiency. Through a cyclical process of “feeding, impacting, colliding, sieving, and output,” they can efficiently convert wood waste into valuable biomass raw materials.

HAMMER MILL FOR WOOD PELLETS PRODUCTION RUNNING VIDEOS

This running video of the hammer mill wood comes from our customer feedback from Indonesia. Our customer purchased the wood waste from various wood processing plants, resulting in complex wood raw materials and different raw material conditions, such as moisture content, wood type, and initial size. They purchased our drum wood chipper and wood pellet mill together. The wood hammer mill with a customized screener can handle these wet raw materials. During raining seasons, the moisture content of their wood waste can reach 55‑65%, but this wood hammer mill can still achieve about 4-5t/h ( main motor 132kwh).

THE WOOD HAMMER MILL STRUCTURE AND DRAWING

The following is a breakdown of the core structure of a wood hammer mill shredder system, listed by function and structure:

1. Feeding System

Composed of a underground feeder and a feeding conveyor, it controls the uniform entry of wood chips or blocks into the shredding chamber, preventing material rebound and splashing. Some models are equipped with a strong magnetic separator roller, suitable for wood chips, blocks, and other irregularly shaped materials, with a maximum material size of 10 cm (smaller is better).

2. Crushing & Milling System (Core Structure)

Rotor Assembly: Mounted on the crusher’s main shaft, it consists of a rotor frame, hammer pins, spacer sleeves, and hammers. The hammers are heat-treated and coated with a wear-resistant coating, making them wear-resistant and allowing for symmetrical rotation, extending their service life.
Toothed Plate and Liner: Fixed to the inner wall of the shredding chamber, these form a shearing and grinding gap with the hammers. After being struck by the hammers, the material impacts the toothed plate, achieving secondary crushing.
Bottom Screen: Surrounding the center and bottom of the rotor, its aperture size determines the fineness of the finished product (typically φ3~30mm) and the machine’s output. Substandard material is repeatedly struck by the hammers until it passes through the screen holes.

3. Material Collection and Discharge System

Centrifugal Fan: Connected to the main unit via duct, it forcibly extracts the undersized powder and transports it through pipelines to a cyclone dust collector for air-material separation. It then connects to a bag filter to filter air containing fine dust, ensuring a safe working environment.
Discharge Device (e.g., windproof device): Ensures air-material separation and prevents dust spillage.

4. Transmission and Support System

Motor and Pulley: Power is transmitted via a V-belt. The main shaft speed is typically 1500~3000rpm, providing high-velocity hammer impact energy.
Frame and Bearing Housing: Constructed from heavy-duty welded steel plates, providing sufficient overall rigidity. The bearing housing is equipped with a dustproof seal to withstand high-dust conditions.

5. Safety and Auxiliary Devices

These include overload protection (current relay), emergency stop rope, inspection door (with safety interlock), and shock-absorbing pads to ensure operational safety.

The above structures together constitute a highly efficient and durable crushing unit. The various systems work together to complete the main workflow of “feeding-impact-collision screening-conveyance”.

HOW TO CHOOSE THE BEST WOOD HAMMER MILL?

There are many types and models of hammer mills on the market. Especially for new users, choosing the right model will be a challenge. To address this confusion, we will share the following key points to help to you select the suitable model.

First you need to confirm the kinds of the wood: confirm the wood is hardwood or softwood.

Generally, Southeast Asia, Africa, and South America mostly grow hardwoods, while Europe grow softwoods. Because the hardness of wood differs, the design of hammers and screens will be different.

Confirm the capacity needs, and the applications.

The hammer mill has small and large models. We will choose the suitable model according to your capacity needs and raw material conditions. Some suppliers usually overstate the machine output, causing the output to fail to meet expectations and reducing production efficiency. By the way, you need to confirm the wood sawdust application. If you want to use the wood sawdust in wood pellets, then the screen size is 12mm, 10mm etc, if you want to applicate the boilers as fuel, the screen size is 12mm, 14mm etc.

The wood raw material moisture content is a key factors affecting hammer mill output and design.

The industrial wood hammer mill should be designed for your wood types and fiber feature. You know, when the wood has high moisture content, the final product wood sawdust, will stick to the inside of the crusher, which reduces the capacity, so the machine must be designed to avoid clog when it’s fresh and high wet. If your wood moisture content is too low and also very soft, a large quantity of dust will be produced when crushing. The dust collection system needs to be customized to ensure production efficiency.

WOOD CHIPPER VS HAMMER MILL

Wood chippers and wood sawdust hammer mill are often compared, mainly because when the wood chips produced by a wood chipper are small enough, the size of the wood chips may seem similar to those produced by a wood shredder. However, for the same power output, a wood chipper has a higher production capacity. In many industries, these two types of machines serve different production stages.

Generally speaking, wood chipper “chipping” wood, aiming for regular shapes; a hammer mill “mills” wood, aiming for fine particle size. The core differences between the two are mainly reflected in the following aspects:

Working Principle: wood chipper uses sharp blades to cut (like “scissors”); a hammer mill uses high-speed hammers to strike and grind (like a “hammer”).

Finished Product Form: wood chipper produces regular flakes (usually 3-15mm thick, with some as thin as 2mm); a hammer mill produces irregular particles/powder (fineer than 1mm).

Applicable Raw Materials：wood chipper processes clean, regular logs and branches; a shredder processes complex, impurity-laden scraps, construction waste, etc.

Energy Consumption and Efficiency: wood chippers are highly energy-efficient, consuming less energy per unit of material processed; pulverizers have higher energy consumption.

Applications: wood chippers are used for papermaking, as raw materials for engineered wood products, or to produce 2-3 mm wood chips for cement plants; wood hammer mill are used for biomass pellets, wood briquettes, charcoal, and edible mushroom cultivation media, etc.

THE ADVANTAGE OF WOOD HAMMER MILL FROM JK MACHINERY

JK wood hammer mill machine is equipped with unique advantages, especially in crushing high-moisture materials. Here are a few points to help you understand the wood hammer mill better:

Dynamic Balancing Test: Dynamic balancing performance directly affects hammer mill stability. Every hammer mill needs dynamic balancing before delivery to the factory until it meets standards. It will save you test time when you use the machine. It effectively reduces the machine failure rate.
Customized Solutions for Different Wood Types: Wood kinds and hardness vary significantly for different countries. For example, Southeast Asian wood is generally harder, while European wood is mostly softwood. Therefore, the hammer mill design will differ: different hammer configurations and screen designs. We can provide the solution based on your specific raw materials to ensure its capacity is maximized and production efficiency.
Multi-functional and adaptable to various biomass raw materials: It can process not only wood but also different biomass raw materials, including the EFB(Empty Fruit Bunches), olive pits, sunflower husk, groundnut shell, coconut shell, sugarcane bagasse, bamboo chips, etc, ensuring a wide range of applicable materials and maximizing their utilization. To be honest, the raw materials can easily mix some metal. It will damage the machine. So our hammer mill is equipped with the magnetic separation equipment to protect the machine.
Foreign object discharge device: Although it has the magnetic separator, it can’t guarantee 100% removal. Therefore, the foreign object discharge port is included. When the hammer mill is running at high speed, heavy materials such as stones are ejected by the device, ensuring the separation of wood sawdust and heavy objects. It will protect the hammer mill and the subsequent processing.

PROFESSIONAL WOOD HAMMER MILL MANUFACTURER

JK MACHINERY boasts years of design and R&D experience, enabling us to recommend and customize the most suitable machines based on our clients’ diverse raw materials. We offer wood shredders, wood chippers, wood sawdust hammer mills, drum dryers, and complete one-stop solutions for pellet production. We have a comprehensive after-sales service team and system. Our subsidiary, KX MACHINERY, has over 12 years of experience in overseas project design and service. Please feel free to contact us with any questions.

FREQUENTLY ASKED QUESTIONS

What is the wood hammer mill price?

The price of a wood hammer mill mainly ranges from $6,500 to $50,000. The cost will be based on your capacity needs, your raw material conditions, and the required automation level of the production line. You can send your project information. We will prepare the official proposal for you.

What is the delivery time for the wood hammer mill?

Usually, the delivery time is about 20-25 working days for a standard machine. If your voltage and frequency need to be customized, the delivery time will be longer. It also depends on the machine model, etc. The delivery time only for your reference.

Why need to add an automatic feeder for the wood hammer mill?

Because the automatic feeder can continuously and evenly feed wood chips to the crusher, it avoids the inconsistent feeding amounts that occur when feeding manually, preventing material blockage and overload in the crusher.If your capacity needs are within 1t/h, you can have the worker feed the wood chips manually. If your capacity needs more than 1t/h, we suggest that you add it. Because the worker will be tired after working for a while, it will reduce the production efficiency.

If my wood chips moisture content is around 60%, is it workable for your hammer mill?

Sure. Our hammer mill is specially design the humidity raw materials. It can ensure high output while preventing machine blockage and ensuring stable and continuous operation.

Because we purchase the wood from the furniture factory, the wood will be mixed with some metal parts, etc. Could your hammer mills remove them?

Yes. If your raw material includes iron, etc., sharp things, you can be added the strong maganetic separate on the feeding system. If you want to use wood sawdust to make pellets or briquettes, you can add it to the discharging system, making sure to protect the machine and extend the service time.

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WOOD HAMMER MILL

WOOD HAMMER MILL FOR SALE

From Wood Logs to Sawdust – All-in-One Grinding Solution, Simple to Operate, Easy to Maintain – Save Time & Labor

WOOD HAMMER MILL TYPES AND MODELS FOR CHOOSING

Small Wood Wood Hammer Mill

Wood Chip Hammer Mill

Wood Chipper Hammer Mill Combo

Hammer Mill for Wet Wood

Industrial Wood Hammer Mill

Force Feeding Wood Hammer Mill