What Is a Wood Chipper? Complete Guide to Wood Chipping Machines

Wood waste is generated every day by forestry operations, landscaping companies, sawmills, farms, orchards, and wood-processing facilities. Tree branches, logs, pruning waste, timber offcuts, and other wood residues can be difficult and expensive to handle when they are left in their original size.

A wood chipper is a machine designed to process these materials into smaller wood chips. By reducing the size and volume of wood waste, a wood chipper makes the material easier to transport, store, recycle, and use in further processing.

Depending on the machine design, power source, feeding system, cutting system, and processing capacity, different wood chippers are suitable for different applications.

In this guide, we will explain what a wood chipper is, how a wood chipper machine works, what materials it can process, the main types of wood chippers, common applications, and how to choose the right machine for your project.

What Is a Wood Chipper?

A wood chipper is a mechanical machine used to cut branches, logs, timber, and other suitable wood waste into smaller pieces known as wood chips.

The basic wood chipping process is:

Wood Waste → Feeding → Cutting → Wood Chips → Collection or Further Processing

A typical wood chipper machine includes several main components:

• Feeding hopper
• Feeding system
• Cutting chamber
• Cutting disc or drum
• Chipper knives
• Main shaft and transmission system
• Motor or engine
• Discharge chute
• Machine frame
• Safety and control components

The exact configuration depends on the type and size of the machine.

For example, a compact branch wood chipper may be designed for tree branches and landscaping waste, while a large industrial wood chipper can process larger logs and higher volumes of wood material.

For commercial and industrial projects, the most important factors are usually the raw material, maximum feed diameter, required capacity, power source, mobility, and desired wood chip size.

How Does a Wood Chipper Work?

Although different wood chipping machines use different designs, the basic working principle is similar.

1. Feeding the Wood Material

The operator places the wood material into the feeding hopper.

Depending on the machine, the material may be fed manually or through a powered feeding system.

Small machines designed for branches and garden waste commonly use manual hopper feeding, while larger industrial machines can use hydraulic or mechanical feed rollers.

The feeding system needs to match the size, shape, and type of material being processed.

2. Moving the Material Into the Cutting Chamber

After entering the hopper, the wood is moved toward the cutting system.

A stable feeding process is important because inconsistent feeding can affect:

• Processing capacity
• Cutting efficiency
• Chip quality
• Machine load
• Operator productivity

For large branches, logs, and continuous industrial production, powered feeding can reduce manual handling and provide more consistent material flow.

3. Cutting the Wood

Inside the cutting chamber, rotating knives cut the wood into smaller pieces.

Depending on the machine design, the cutting system may use a rotating disc or drum equipped with high-strength knives.

The cutting system determines many aspects of machine performance, including:

• Cutting efficiency
• Output size
• Processing capacity
• Power requirements
• Knife wear
• Overall operating stability

For example, Junrongeco’s Model 800 Industrial Wood Chipper uses a 735 mm cutting disc and six cutting blades. It is designed for logs, branches, and wood materials with a maximum feed diameter of up to 200 mm and a processing capacity of approximately 4–5 tons per hour.

4. Discharging the Wood Chips

After cutting, the finished wood chips are discharged through the machine’s discharge system.

Depending on the machine and application, the chips can be discharged:

• Onto the ground
• Into a collection container
• Onto a conveyor
• Into a truck
• Directly into another processing machine

For larger wood processing projects, the wood chips may be sent to a wood crusher, hammer mill, screening machine, dryer, or other downstream equipment.

This makes a wood chipper an important first-stage machine in many complete wood waste processing systems.

What Materials Can a Wood Chipper Process?

The materials that can be processed depend on the specific wood chipper model.

Common materials include tree branches, logs, forestry residues, pruning waste, bamboo, sawmill residues, and certain wood-processing waste.

Tree Branches

Tree branches are one of the most common materials processed by wood chippers.

Branches are generated during:

• Tree trimming
• Tree removal
• Landscaping
• Orchard pruning
• Municipal maintenance
• Forestry operations

A tree branch chipper can reduce bulky branches into smaller wood chips that are easier to transport or reuse.

For example, Junrongeco’s Model 6130 Branch Wood Chipper is designed for branch processing and can produce wood chips for applications such as composting, mulch, biomass pellets, and other material uses.

Logs and Timber

Heavy-duty wood chippers can also process logs and larger timber materials.

However, the maximum feed diameter varies significantly between models.

For this reason, you should always determine the largest diameter of your raw material before selecting a machine.

Forestry Residues

Forestry operations can generate large quantities of branches, tops, small logs, and other wood residues.

An industrial wood chipper can process these materials into wood chips for transportation, biomass applications, or further processing.

Sawmill Waste

Sawmills generate a variety of wood residues, including slabs, offcuts, branches, and other wood materials.

A suitable wood chipper can process certain larger wood residues into chips for further use or processing.

Wood-Processing Waste

Furniture factories, woodworking facilities, and other wood-processing businesses may generate wood scraps, offcuts, and other residues.

The appropriate machine depends on the dimensions, shape, moisture content, and characteristics of the waste.

Main Types of Wood Chippers

There are many types of wood chippers on the market. The best machine depends on the material, production requirements, working environment, and final product.

Disc Wood Chipper

A disc wood chipper uses a large rotating disc equipped with cutting knives.

When wood enters the cutting chamber, the rotating disc and knives cut the material into wood chips.

Disc wood chippers are commonly used for:

• Tree branches
• Logs
• Forestry residues
• Wood waste
• Biomass materials

They can be designed for small commercial applications as well as large industrial production.

Drum Wood Chipper

A drum wood chipper uses a rotating cylindrical drum equipped with cutting knives.

Drum wood chippers can be designed for continuous industrial processing and are suitable for applications requiring stable feeding and relatively high production capacity.

For example, Junrongeco’s Model 217 Drum Wood Chipper uses a 55 kW electric motor, hydraulic forced feeding, and a drum cutting system. It is designed for logs, bamboo, branches, pallets, and sawmill offcuts with a maximum feed diameter of up to 220 mm and a capacity of approximately 3–6 tons per hour.

Electric Wood Chipper

An electric wood chipper uses an electric motor as its main power source.

Electric wood chippers are particularly suitable for factories, workshops, and stationary processing facilities where a reliable electrical supply is available.

Potential advantages include:

• Stable power output
• Easy integration into production lines
• No on-site fuel storage
• Suitable for continuous industrial operation
• Convenient connection to other electric processing equipment

Junrongeco’s Model 600 Commercial Wood Chipper, for example, uses a 15 kW three-phase electric motor and provides approximately 2–3 tons per hour of processing capacity. A diesel engine can also be selected for applications requiring independent power.

Diesel Wood Chipper

A diesel wood chipper uses a diesel engine and can operate without connection to the electrical grid.

Diesel-powered machines are often suitable for:

• Forestry operations
• Outdoor work
• Remote locations
• Mobile processing
• Farms and orchards
• Sites without reliable electricity

A small diesel wood chipper can also be useful for agricultural and landscaping operations where mobility is important. Junrongeco’s Model 300 Diesel Wood Chipper is designed for smaller-scale branch processing and uses an 8 HP diesel engine with a mobile wheel design.

Gasoline Wood Chipper

Gasoline wood chippers are commonly used for smaller-scale and mobile applications.

They can be suitable for:

• Landscaping
• Gardens
• Orchards
• Tree trimming
• Small forestry operations

Their compact design and independent power supply can make them convenient for outdoor applications.

Mobile Wood Chipper

A mobile wood chipper is designed to move between different working locations.

Depending on the design, mobile machines may use:

• Wheels
• Towable chassis
• Trailers
• Track-mounted systems

Mobile wood chippers are especially useful when wood waste is generated at multiple locations.

Industrial Wood Chipper

Industrial wood chippers are designed for larger-scale and continuous wood processing.

They typically focus on:

• Higher capacity
• Larger feed diameter
• Heavy-duty construction
• Continuous operation
• Stable output
• Integration with other processing equipment

For example, Junrongeco’s Model 950 Wood Chipper is designed for 6–8 tons per hour, with a maximum feed diameter of up to 250 mm and a towable wheeled chassis. It is intended for forestry, paper production, engineered boards, biomass energy, and wood waste recycling applications.

What Are Wood Chippers Used For?

Wood chippers are used in many industries because wood waste is generated in many different forms.

Forestry

Forestry operations generate branches, small logs, tops, and other residues.

A forestry wood chipper can process these materials into wood chips that are easier to transport and prepare for further utilization.

Landscaping

Landscaping and tree-care companies regularly generate branches and pruning waste.

Instead of transporting bulky branches in their original form, companies can chip them at or near the work site.

This can simplify handling and reduce the volume of the material.

Agriculture and Orchards

Orchards and farms generate branches and pruning residues during seasonal maintenance.

A branch wood chipper can process these materials into smaller wood chips for suitable applications such as mulch, composting, or biomass processing.

Sawmills

Sawmills produce large quantities of wood residues.

Depending on the material dimensions, a wood chipper can be used as part of the waste processing system to convert larger residues into wood chips.

Biomass Processing

Wood chips are commonly used as a raw material in biomass processing.

A wood chipper can serve as the first stage of a biomass preparation process by reducing larger wood materials into a more manageable size.

Municipal Tree Maintenance

Municipalities and tree-care contractors often need to process branches and tree trimming waste from public areas.

Mobile wood chippers can be especially useful because the equipment can be moved to different work locations.

What Can Wood Chips Be Used For?

Wood chips are not always the final product.

Depending on their size, moisture content, wood species, and application, they can be used for different purposes.

Biomass Fuel

Wood chips can be used as a biomass raw material in suitable energy and heating applications.

Landscaping Mulch

Wood chips from tree branches and landscaping waste can be used as mulch in suitable landscaping applications.

Composting

Wood chips can be incorporated into certain composting processes when properly managed.

Pulp and Paper Production

Wood chips can be used as raw material for some pulp and paper production processes.

Engineered Wood Products

Wood chips can also be used as raw material in certain engineered board manufacturing processes.

Further Wood Processing

In many industrial projects, wood chips are an intermediate product rather than the final product.

For example:

Tree Branches → Wood Chipper → Wood Chips → Wood Crusher → Sawdust

A wood crusher can further process branches or wood chips into smaller particles. Junrongeco’s Model 600 Wood Crusher, for example, is designed to process branches and wood chips into sawdust, with optional screen sizes for controlling the finished particle size.

This means a wood chipper and wood crusher can work together as different stages of the same wood processing system.

Wood Chipper vs. Wood Crusher: What Is the Difference?

Wood chipper and wood crusher are sometimes used interchangeably, but they generally perform different processing functions.

Feature	Wood Chipper	Wood Crusher
Main purpose	Produce wood chips	Reduce wood into smaller particles
Typical feed	Branches, logs, timber	Branches, wood chips, wood waste
Typical output	Wood chips	Smaller wood particles or sawdust
Main processing method	Chipping with knives	Crushing or grinding
Common applications	Forestry, landscaping, wood chipping	Sawdust production, biomass processing
Typical position	Primary size reduction	Further size reduction

If your raw material consists mainly of large branches or logs and your target product is wood chips, a wood chipper is generally the appropriate choice.

If your target product is sawdust or finer wood particles, a wood crusher or sawdust crusher may be more suitable.

For some projects, both machines can be combined.

How to Choose the Right Wood Chipper Machine

Choosing a wood chipper based only on the purchase price is not recommended.

The machine should be selected according to your actual material and production requirements.

1. Identify Your Raw Material

First determine exactly what you need to process.

For example:

• Tree branches
• Logs
• Forestry residues
• Bamboo
• Orchard pruning waste
• Sawmill waste
• Wood offcuts

Different materials may require different feeding and cutting configurations.

2. Measure the Maximum Feed Diameter

The maximum diameter of the raw material is one of the most important specifications.

Do not only consider the average diameter.

If your material is usually 100 mm but occasionally reaches 200 mm, the machine selection should account for the largest practical feed size.

3. Determine the Required Capacity

Production capacity is normally expressed in tons per hour, or T/H.

For example:

• 1 T/H
• 2 T/H
• 3 T/H
• 5 T/H
• 6 T/H
• 8 T/H
• 10 T/H

Your required capacity should be calculated according to the amount of material generated and the planned working hours.

For example, if a project needs to process approximately 30 tons of wood waste during an 8-hour working day:

30 tons ÷ 8 hours = 3.75 T/H

A machine with a nominal capacity above the calculated requirement may therefore be considered, while actual capacity should also account for material characteristics and operating conditions.

4. Choose the Power Source

The main options include:

Electric

Suitable for factories and stationary facilities with reliable three-phase electricity.

Diesel

Suitable for outdoor, mobile, or remote applications without convenient grid power.

Gasoline

Commonly used for smaller mobile and landscaping machines.

The choice should consider electricity availability, fuel availability, working location, operating hours, and mobility requirements.

5. Consider Mobility

If the machine needs to move between different work sites, consider a mobile or towable wood chipper.

If the machine will be installed permanently in a factory, a stationary electric model may provide a better solution.

6. Define the Desired Chip Size

The required wood chip size depends on the final application.

For example, the requirements for biomass processing may differ from those for paper production, engineered boards, or landscaping mulch.

The desired output specification should therefore be discussed with the equipment manufacturer before selecting the machine.

7. Consider the Complete Processing System

If your final product is sawdust rather than wood chips, purchasing only a wood chipper may not be sufficient.

A complete system may include:

Raw Wood → Wood Chipper → Wood Chips → Wood Crusher → Sawdust

The exact equipment configuration depends on the feed material, capacity, moisture content, target particle size, and final application.

How Much Does a Wood Chipper Cost?

The price of a wood chipper machine can vary significantly.

The main factors affecting the price include:

• Processing capacity
• Maximum feed diameter
• Motor or engine power
• Cutting disc or drum size
• Number and type of knives
• Feeding system
• Hydraulic system
• Mobility
• Electric or diesel drive
• Automation
• Optional equipment
• Overall machine configuration

A small mobile branch chipper and a large industrial wood chipper can have completely different specifications and prices.

For B2B projects, the lowest machine price is not necessarily the lowest overall cost.

A machine that cannot handle the required feed diameter or capacity may result in lower productivity, more downtime, and additional equipment costs.

A better approach is to select the machine based on the complete processing requirement.

Wood Chipper Capacity: What Does T/H Mean?

T/H means tons per hour and is commonly used to describe the processing capacity of industrial wood processing equipment.

For example:

Machine Type	Example Capacity
Small mobile wood chipper	0.4–0.6 T/H
Heavy-duty branch chipper	Around 1–2 T/H
Commercial wood chipper	2–3 T/H
Industrial wood chipper	4–5 T/H
Large industrial wood chipper	6–8 T/H

Actual performance can vary depending on material type, moisture content, feed size, feeding method, operator practices, and other operating conditions.

For this reason, capacity should be treated as a technical requirement rather than simply a number in a product catalog.

How to Maintain a Wood Chipper

Regular maintenance helps maintain stable performance and extend the service life of the machine.

Inspect the Cutting Knives

Check the knives regularly for wear, damage, and proper installation.

Dull or damaged knives can affect cutting performance and increase machine load.

Check the Feeding System

Inspect feed rollers, hoppers, and other feeding components for wear or material buildup.

Check Bearings and Drive Components

Bearings, belts, pulleys, and other drive components should be inspected according to the manufacturer’s maintenance recommendations.

Keep the Cutting Chamber Clean

Wood debris should be removed regularly from the machine according to the operating and maintenance instructions.

Check Safety Components

Emergency stops, guards, belt covers, and other safety components should be checked before operation.

Follow the Manufacturer’s Maintenance Schedule

Maintenance intervals vary by machine model.

Always follow the manufacturer’s specific operating and maintenance instructions.

Wood Chipper Safety

A wood chipper contains sharp cutting knives and high-speed rotating components, so proper operating procedures are essential.

Operators should:

• Read the machine manual before operation.
• Wear appropriate personal protective equipment.
• Keep hands away from the feeding and cutting areas.
• Never bypass safety guards.
• Never remove guards while the machine is operating.
• Stop and isolate the machine before maintenance.
• Keep unauthorized personnel away from the operating area.
• Never process materials outside the machine’s designed specifications.
• Inspect the machine before starting work.

Safety procedures should always follow the manufacturer’s instructions and applicable local regulations.

Wood Chipper Processing Solutions for Different Projects

There is no single wood chipper that is ideal for every application.

A small landscaping company may need a mobile branch chipper, while a forestry operation may require a high-capacity industrial machine.

For example:

Small Landscaping Project

Tree Branches → Mobile Branch Chipper → Wood Chips

Commercial Wood Waste Processing

Branches / Logs → Commercial Wood Chipper → Wood Chips

Industrial Forestry Processing

Logs / Forestry Residues → Industrial Wood Chipper → Wood Chips

Sawdust Production

Branches / Wood Waste → Wood Chipper → Wood Chips → Wood Crusher → Sawdust

Biomass Processing

Wood Waste → Wood Chipper → Wood Chips → Further Processing → Biomass Fuel

The correct configuration depends on the customer’s raw material and final product requirements.

Frequently Asked Questions About Wood Chippers

What is a wood chipper used for?

A wood chipper is used to process branches, logs, timber, bamboo, and other suitable wood materials into smaller wood chips for recycling, transportation, biomass processing, landscaping, and other applications.

What is the difference between a wood chipper and a wood crusher?

A wood chipper is mainly used to produce wood chips from larger wood materials. A wood crusher is generally used for further size reduction and can process certain wood materials or wood chips into smaller particles such as sawdust.

Can a wood chipper process tree branches?

Yes. Tree branches are one of the most common materials processed by wood chippers. The appropriate machine depends on the maximum branch diameter and required processing capacity.

Can a wood chipper process logs?

Yes, some heavy-duty wood chippers are designed to process logs. The maximum log diameter depends on the specific machine model.

Can wood chips be turned into sawdust?

Yes. Wood chips can be further processed by suitable wood crushers, sawdust crushers, or hammer mills to produce smaller wood particles.

Should I choose an electric or diesel wood chipper?

Electric wood chippers are generally suitable for facilities with reliable electricity, especially stationary production lines. Diesel wood chippers are useful for mobile and remote applications where grid electricity is unavailable or inconvenient.

What size wood chipper do I need?

The answer depends on your raw material, maximum feed diameter, required capacity, working hours, power source, mobility requirements, and desired output size.

How do I choose a wood chipper for my business?

Start by identifying your raw material and measuring its maximum diameter. Then determine your required tons-per-hour capacity, desired chip size, power source, mobility requirements, and final application.

Conclusion

A wood chipper is an important piece of equipment for reducing branches, logs, forestry residues, and other wood materials into manageable wood chips.

The right wood chipping machine can help businesses in forestry, landscaping, agriculture, sawmilling, biomass processing, and wood waste recycling improve material handling and prepare wood waste for further utilization.

However, selecting the right machine requires more than comparing prices.

The most important factors are:

Raw Material → Maximum Feed Diameter → Required Capacity → Power Source → Mobility → Chip Size → Final Application

For applications requiring smaller particles or sawdust, a wood chipper can also be combined with a wood crusher or sawdust crusher as part of a complete wood processing system.

If you are planning a wood chipping or wood waste recycling project, provide your raw material type, maximum diameter, required capacity, preferred power source, desired output size, and final application.

Junrongeco can recommend a suitable wood chipping solution based on your specific processing requirements.