Sawdust Log Press Machine For Sale – A Full FAQ Guide

No.1 The Background of the Sawdust Briquette Machine Rise

As the energy situation becomes more and more severe, people are beginning to seek renewable alternative energy sources. As a renewable biomass energy source, wood waste is widely used in the market because of its good calories, cleanliness, and environmental protection. But pure wood sawdust is not a good fuel because of the big space needed and cannot be used by all combustion machines easily. But the compressed wood logs and briquettes can perfectly solve these problems. There are two kinds of sawdust log press for sale in the market now, mainly for small and large capacity differently.

No.2 Application and Advantages of Sawdust Logs

Sawdust logs and briquettes are used for home heating or cooking mainly. The logs calorific value is around 4,500 kcal, and it will vary depending on your raw materials used. Sawdust is a by-product of wood processing. It takes up a lot of storage space, and it’s easy to cause danger. However, after being pressed into a briquette, it can make more profits, and it is easy to store, transport, and burn. It does not produce toxic and harmful substances when burning, that’s really a good way to utilize biomass waste.

No.3 Raw Materials Of Sawdust Logs

Although the briquette is called sawdust logs, people not only use sawdust as feedstock. The most commonly used raw materials are wood powder, wood chips, barks, branches, rice husks, peanut shells, straws, cotton straws, bamboo powder, bagasse, and coconut shells. There are other biomass or agriculture raw materials also.

It’s just that sawdust as a raw material is of the best quality because of its high calorific value, stability, and low ash content after briquetted. Other materials generally require crushing or drying, so compared to wood sawdust, its profit will be lower.

No.4 Sawdust Log Press Types

The sawdust log maker machine refers to a machine that produces briquettes from wood sawdust. The sawdust logs are cylindrical or hexagonal, with a density of 1-1.3g/cm3. It can be solid or hollow, and the length is generally between 30cm and 50 cm.

Sawdust fire log press machines include small and large according to the output. The output of a small one is generally below 400 kg/hour, and it is a screw press briquetting machine. It requires manual feeding and semi-automatic operation, which is used in charcoal briquettes production. The small sawdust log maker can only produce a hollow briquette, and the shape customization is acceptable. It is suitable for small businesses. The output of a large piston press briquetting machine is more than 1ton/h. It’s a mechanical briquetting press with automatic feeding and fully automatic control. It can operate 24 hours a day without any failure rate. The piston press briquetting machines are mainly used in large-scale projects to produce hollow and solid sawdust logs, the diameter from 20mm to 110mm differently.

No.5 Small Sawdust Log Press

The small sawdust log press capacity is between 150 kg and 300 kg per hour. It is screw type briquetting machine. Except for sawdust, it can press other biomass waste also. The biomass briquettes within the inner hole could burn directly, or be carbonized into charcoal. The difference between machine-made charcoal and raw charcoal is not much.

A. How To Make a Fire Log – Extrusion

Under the condition of high temperature and pressure, the raw material is extruded into the forming sleeve by the pusher, and there is a heating ring outside the forming sleeve, which can raise the temperature of the forming cylinder to about 350°. In order to ensure the density of the briquette is high, the surface is smooth, and there is no obvious crack. It is usually necessary to select the appropriate molding temperature according to the type of raw material and moisture content. Its level should be confirmed by an on-site machine test and experience. Generally speaking, if the propeller of the machine is not worn and the moisture content of the material is 6%-12%, the molding temperature for wood chips, sawdust, shavings, bamboo powder, and other materials is between 260°-320°

B. Advantages of Screw Briquette Machine

1. Simple structure, easy operation, and low maintenance cost
2. Small size, small space, labor cost saving, power-saving, low investment cost
3. With a fully automatic electric heating ring, adjust the moisture content based on material, ensures the stable operation, and improve the work efficiency
4. The propeller and the forming cylinder are specially treated with wear-resistant materials, which can be running continuously, wear-resistant, and have a longer service life.
5. The four-bearing design makes the machine run stably.
6. Oil-immersed lubrication replaces oil-applied lubrication to increase machine life.
7. Increased pitch, increased material feeding, and increased output
8. New forming cylinder structure, reduces friction and increases the density of the briquettes

C. Best Wear Parts

The wearing parts of the small sawdust briquette press are mainly the propeller and the forming cylinder, and its processing technology and size are closely related to the service life. High-quality propellers have fast discharge speed, wear resistance, and long service life.

D. Process Flow of Small Sawdust Briquette Production Line

The screw-type sawdust log press has strict requirements on the size and moisture of the raw materials, usually, the optimal size is within 3 mm, and the moisture does not exceed 12%. So most of the raw materials need to be crushed and dried.

Crushing

The raw materials with irregular shapes and sizes are conveyed into the crusher and crushed into particles no more than 3-5 mm. It is a hammer mill usually, and the material is sent out by air.

Drying

Use an airflow-type dryer to dry the raw materials with moisture content exceeding the standard, or uneven moisture content, until the moisture content is between 6% and 12%. The airflow-type dryer is matched with the screw-type briquette machine output well. The airflow-type dryer is low cost, so it is especially suitable for small-scale sawdust log press.

Briquetting

The crushed and dried raw materials are extruded into hollow briquettes under high temperature and high pressure working conditions. The most commonly used briquette size is 50 mm in diameter and 40-50 cm in length.

Carbonization

If you want to develop a new market, you can add a carbonization furnace at the end of the plant to carbonize biomass briquettes into charcoal briquettes. The sawdust briquettes are stacked in the carbonization furnace, all air inlets are closed, and then ignite. Control the input oxygen during the combustion process, and pour water to extinguish the fire, the carbonization process is completed. The black smoke produced during the charcoal fire is cooled and purified by the condenser, and get a mixture of wood tar, wood vinegar, and water.

No.6 Large Scale Sawdust Log Press

The most commonly used large-scale sawdust log press machine is a mechanical stamping type. It is multi-purpose and can produce biomass briquettes with a diameter of 20 mm to 110 mm. Usually, the length of the sawdust logs can be customized according to customer requirements. According to a different market request, it can be in random lengths or cut into specified lengths.

Industrial sawdust briquette press have low energy consumption and high output, and you have many models to choose from to meet your plant request.

How to Turning Sawdust Into Logs – Mechanical Punch

The mechanical stamping type briquetting machine is designed based on the principle of crank connecting rod. It has two flying wheels. The wheels drive the punches to punch the materials. This kind of machine has high pressure, and it is easy to block the materials in high speed. It is the best briquette machine for pressing hard-to-form materials.

Mechanical Briquettte Machine Advantage

Large-scale wood log briquetting machines are mainly used in large-scale industrial production projects, so the stability of the equipment is very high. The stamping briquette machine is equipped with a cooling system and an automatic control system, which is stable in operation, low in energy consumption, and high in output. In addition, it is easy to maintain and is the best choice for large-scale projects.

A piston press briquetting machine has only a few wearing parts. Only the mold parts need to be replaced regularly. Our patented mold is a split design, only the consumable part ( which contacts the raw material) needs doing replacement period, which saves maintenance time and costs. All our wearing parts are specially heated and hardened. That is customized according to the hardness of your material. It prolongs the service life of the mold and reduces the production cost of the briquette.

1. High output, low energy consumption
2. Fully automatic control, saving labor costs
3. Immersion lubrication, 24 hours continuous production
4. Split mold design, low maintenance cost

Piston-Type Sawdust Log Press Wear Parts

A piston press briquetting machine has only a few wearing parts. Only the mold parts need to be replaced regularly. Our patented mold is a split design, only the consumable part ( which contacts the raw material) needs doing replacement period, which saves maintenance time and costs.

All our wearing parts are specially heated and hardened. That is customized according to the hardness of your material. It prolongs the service life of the mold and reduces the production cost of the briquette.

Working Video Of Large Sawdust Briquetting Machine

Usually, the diameter of the sawdust log can be decided according to your needs. For sawdust, the most commonly used diameter is 40mm-80 mm. Based on our experience, we do not recommend you choose a too big or small diameter. But if your local market needs a large or small one, then workable.

Process Flow Of Large-Scale Sawdust Log Production Line

The ram-type sawdust log briquetting machine has wide adaptability to raw materials. Raw materials with a size of no more than 20 mm can directly briquetting, and the requirements for moisture are relatively loose, usually no more than 20%. If the size and moisture content exceed the standard, it needs to be pulverized and dried. Generally needs to be equipped with an industrial heavy-duty wood crusher and rotary drum dryers to ensure the supply. If your raw material is wood sawdust, then consider the moisture content only.

No.7 Comparison of Two Briquetting Presses

The design, working principle, output, and other aspects of the two kinds of sawdust log presses are different. You can choose according to your raw materials and project requirements. The following is a comparison of various aspects, please help to check. Contact us if you need more information.

Machine Type	Capacity	Briquette Size	Raw Material	Application
Screw Type	200-300kg/set	50mm-60mm	Biomass Waste	Small Scale Project
Piston Type	1000-3000kg/set	20mm-110mm	Biomass and Industrial Waste	Middle and Large Scale Project

No.8 How To Choose The Most Suitable Machine For You?

From the comparison of the above table, you can quickly choose the sawdust log maker that suits you. Follows are our additional suggestions.

• If you want to invest in a small factory for a start-up, then choose a screw briquette machine because their investment cost is low.
• If your local briquet market is still not developed, and there are a lot of free raw materials, you have a sufficient budget and plan to occupy the market, then choose a piston press briquetting machine.

No.9 What We Could Do For You?

We are a professional manufacturer of biomass briquette equipment with many years of production experience and independent design and development capabilities. Service plays an important role in machine transactions. From pre-sales consultation to after-sales installation. Commissioning, we spend a lot of energy and time giving our customers the most considerate and professional support. We are a professional factory you can trust.

Pre-sales service

We have a strong technical team to answer your technical questions and provide a professional solution. Provide test machine service according to your material to minimize your investment risk.

In-sales service

From your order to delivery, we will follow the order team to provide you with the production information of the order, and you can track the production steps of the equipment throughout the process.

After-sales service

Because our machine is heavy equipment, after-sales installation and commissioning are extremely important. Our professional after-sales team will maintain communication with you throughout the process, lead the completion of installation and commissioning in the shortest possible time, and conduct detailed training.