Hollow Block Making Machine

When we talk about the hollow block making machine there are some different pictures and ideas of this machine in people’s heads so we need to specify what we exactly mean by it. A hollow block machine is a machine that produces hollow blocks using pressure and vibration to compress the concrete mortar into the molds and form the concrete blocks.

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The hollow block machine has different molds in the shape of concrete blocks and when the mortar is poured inside these molds, the machine uses vibration and hydraulic force to press the mortar into the molds. In this way, concrete hollow blocks are shaped.

This machine is also called the interlocking brick machine and has two general categories as shown below.

• Mobile hollow block making machine:

The mobile machine is simpler and easier to use and also cheaper but most of the job like preparing concrete, transferring the mortar to the machine and operating the machine is done manually.

The capacity of this machine is also low compared with the stationary hollow block machine. This machine is suitable for small-scale projects with a low budget.

• Stationary hollow block making machine:

The stationary hollow block making machine is a bigger and stronger machine and it also has different models, different automation levels, and optional parts. This machine is the industrial version of mobile machines.

The smallest Stationary hollow block machine produces 4.000 pieces of concrete hollow blocks or 12.000 pieces of paving blocks on an eight-hour shift and the biggest Stationary machine produces 24.000 pieces of concrete hollow blocks or 56.000 pieces of paving blocks on an eight-hour shift.

If you need price details for these machines you can check Hollow Block Machine Prices.

Note that double-hopper machines are also available and they are specially designed to produce double-layer paving blocks. For more details, you can read our article "paving block machine".

Concrete Block Types By Raw Materials

In modern construction practices, bricks are categorized according to the materials used to form them and the method of production. Under this classification, there are five common types:

• Burnt clay bricks
• Sand-lime bricks
• Concrete bricks
• Flyash clay bricks
• Fire bricks

This article is about concrete Hollow block making machines so first concrete brick is defined, then we will move to the machine.

Concrete Block Description

Concrete blocks also called cinder blocks or cement blocks, come in a wide variety of shapes and sizes. They are made from a mixture of Portland cement, sand, gravel, and water and produced in a machine.

There are two major categories for concrete blocks

1. Hollow concrete block

2. Solid concrete block

When the mortar is wet and paste-like it is cast into the form of the block. Concrete blocks are usually placed in fences, and provide an excellent aesthetic presence. These bricks can be manufactured to provide different colors if color pigments are added during production. Note that Concrete bricks are not recommended to be used in below-ground applications. For underground construction, solid blocks are used mostly.

The difference between concrete block and cinder block is that cinder block comprises fly ash as aggregate but the concrete block does not. There are also other additives that can be used in the hollow block making machine.

You can read the article "What is Hollow Block?" to know every detail about hollow blocks

Normally the size of a standard hollow block is 20cm(width)x40cm(length)x20cm(height). This is a worldwide standard and the manufacturers produce their hollow blocks considering this standard. The size of the machine is also determined by these blocks.

Hollow Block Making Machine Mortar Type

The basic mixture of the mortar is a 4-to-1 or 5-to-1 mixture. It means for every five units of sand you need to add one unit of cement and then you should add water until you achieve the texture you want for your machine.

To produce a mixture that can be used in a cement brick machine you generally want a thick, creamy mixture that will stick but also endure the blocks' weight.

When adding water, you need to be more careful because too much water will make it difficult for the sand particles to bond with cement in the concrete.

You should also be careful with the amount of cement you are using for your hollow block making machine. Too much cement will cause cracks on the hollow concrete clocks when they are dried.

You can sometimes go as low as three shovels of sand to one shovel of cement, anything beyond that does not provide you with a quality mortar that cures slowly and hardens the best.

Sand helps the hollow concrete blocks to withstand the weight of the wall. So make sure you use the right ratio in your mortar used in the hollow block making machine.

These days it is very important to make hollow blocks lighter in weight.

It can be achieved by mixing a lighter aggregate in the hollow block machine, such as perlite, vermiculite, or Styrofoam to reduce the overall weight.

Like always this method has advantages and disadvantages. It is not as strong as the common mixture but it has better insulation than the traditional concrete.

This concrete is often used for countertops and rooftop decks, where a lighter weight is more important than a higher strength. It is also used for walls where insulation is more important than strength, such as offices

How A Hollow Block Making Machine Works

First, you need to prepare the mortar with the right ratio. Usually, one unit of cement is added to four units of additives and sand. Then you need to add the right amount of water till the mortar becomes like a paste. This action is done in the mixer.

Some Stationary hollow block making machines do the whole process of preparing the mortar automatically and some others do it semi-automatically. It depends on some facts like the budget or the capacity that the market requires.

Then the mortar is delivered to the hopper of the machine by a conveyor belt. This action is also done automatically in double-hopper machines.

there are two options for the conveyor belt in the double-hopper machines:

1. Single conveyor belt with a changing position head to feed both hoppers

2. Two conveyor belts separately to feed both hoppers

The hollow block making machine will take care of the rest of the job. First, the mortar is poured into a machine called a mortar cart and the mortar cart starts to fill the mold by going back and forth. When the mold is filled the vibration starts to vibrate the mortar so the tiny space between sands can be filled and when the machine vibrates, the surface of the mortar shrinks. The mortar cart starts to fill the mold for the last time before the press starts its job.

Pressing takes place on the surface of the pallets with the bottom and top molds. After pressing takes action both molds go up and the pallet is automatically delivered to the output of the hollow block machine.

Pallets are then delivered to the drying section or curing chamber. Delivering the pallets is optional it can be ordered as manual, semi-automatic, or automatic. It depends on your budget and production capacity.

Pallet size differs according to the size of the machine and as the machine gets bigger the pallet also needs to be bigger and thicker as well. The quality of the pallet is so important because of the maintenance. The higher quality pallets you use the longer you can use them and save money changing them.

The same process also works with the paver block machine as well.

Different Choices for Pallets

There are three different options for your pallets depending on your needs. You can see the pallet options below.

• Plastic pallets
• Wooden pallets
• Metal pallets

The automatic pallet gathering system in the hollow block making machine is done by a forklift or a finger car system. It is faster and it requires less space allocated to the drying part. It is because the pallets are stored in five levels then carried to be dried but in the manual machine, they are delivered and stored manually and one by one.

For a hollow block plant, you need a maximum of 8 and a minimum of 2 workers. It only depends on your automation level. If you live in a country that labor costs and the land are cheap, the semi-automatic machine suits you the best.

For higher productions, you are recommended to buy automatic machines because of the smaller land needed, and to handle higher capacities robots show better performance.

Pallet size differs in accordance with the production capacity of the hollow block making machine. For example, PRS-400 requires 100cm*50cm with 4cm thickness, and PRS-800 needs 95cm * 110cm pallets with 4cm thickness.

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This machine can also produce other concrete products by just changing the molds. There are almost 600 different molds available for this machine.

The products that hollow block machine can produce are listed below

• Hollow concrete blocks
• Paving blocks
• Hollow floor blocks
• Curbstone
• Roof gutter
• Lego blocks
• Lawn stone
• Tile

IF you want to read about each one in details you can read the article 10 Different Products Produced by Concrete Block Machine.

Conclusion

You need to have in mind to buy a high-quality machine for long-term use if you are considering establishing a hollow block producing plant. You also need a hollow blocks business plan for your plant according to your country.

To get your special offer or your special plan for your plant you can contact our English department.

LMT4-26 Cement Machine

The LONTTO LMT4-26 is a compact, semi-automatic system designed for producing sturdy and long-lasting blocks. It uses a vertical mold vibration method, combined with pressure from the upper mold, to ensure each block is dense and highly durable.

Details:

• Price starts from (excluding shipping): $6,000
• Capacity:  34,112 pcs/8 hours
• Pallet size: 850×550 mm
• Power: 11.6kw

LMT4-35 Manual Machine

LONTTO LMT4-35 small brick making machine is equipped with two strong vibration motors to the upper and down mould, and adopts 350 model increase reducer for elevating and dropping the mould.

Details:

• Price starts from (excluding shipping): $4,500
• Capacity: 20,160 pcs/8 hours
• Pallet size: 850×450 mm
• Power: 9.7kw

LMT4-40 Small Machine

The LONTTO LMT4-40 is designed with a high-power vibration motor, ensuring the production of high-quality blocks with exceptional density and strength. This advanced vibration system enhances durability and consistency in every unit produced.

Details:

• Price starts from (excluding shipping): $2,500
• Capacity: solid bricks 15,120-17,304 pcs/8 hours
• Pallet size: 850×450 mm
• Power: 9.3kw

QCM4-30 Manual Machine

The QCM4-30 is a mobile concrete block production system that operates without pallets, making it highly efficient and easy to use. Designed as an egg-laying type machine, it runs on a diesel engine, providing flexibility and convenience for on-site block production.

Details:

• Price starts from (excluding shipping): $3,000
• Capacity: 8 inches brick: 3,840 pcs/8 hours
• No pallet needed
• Power: 4kw or 6HP diesel engine

QMJ2-40 Small Machine

LONTTO’s most compact system for producing cement hollow blocks is the QMJ2-40, powered by electricity. Despite its simple design, it is highly durable and reliable. This versatile machine can produce blocks in multiple sizes, including 4″, 5″, 6″, and 8″, with an easily interchangeable mold for flexible production.

Details:

• Price starts from (excluding shipping): $1,000
• Capacity: 8’ solid brick — 1,280 pcs/8 hours
• Pallet: not required
• Power: 1.5kw

QMJ4-45 Mobile Machine

The LONTTO QMJ4-45 is a highly mobile brick production system, featuring four large wheels for easy relocation. It efficiently produces both hollow and solid blocks using a mix of fly ash, cement, stone chips, sand, and other materials. With a minimum order of just one unit, it can be conveniently shipped via LCL (Less than Container Load) for flexible delivery options.

Details:

• Price starts from (excluding shipping): $3,500
• Capacity: 8’ brick: 2,560 pcs/8 hours
• Pallet: not needed
• Power: 6.5kw

Hydraulic QMY4-30 Machine

The LONTTO QMY4-30 is designed for producing a variety of concrete hollow and solid blocks in different shapes and sizes. This mobile system operates without the need for pallets, allowing blocks to be formed directly on a cement surface. Powered by a hydraulic transmission, it ensures high-density production, delivering strong and durable blocks with every cycle.

Details:

• Capacity: 8’ solid brick: 3,840-4,608 pcs/8 hours
• Pallet: not required
• Power: 6kw

QMY6-25 Fly Ash Cement Machine

The QMY6-25 Egg-Laying Block Machine utilizes synchronized vibration technology to deliver powerful, high-intensity vibrations, ensuring the production of high-quality, durable blocks. This advanced system enhances strength and consistency, making it a reliable choice for efficient block manufacturing.

Details:

• Price starts from (excluding shipping): $9,000
• Capacity: 8’ hollow brick: 8,640 – 11,520 pcs/8 hours
• No pallet needed
• Power: 9.6kw

QMY10A Automatic Machine

The QMY10A Brick Production Machine is equipped with an advanced PLC control system for fully automated operation, ensuring efficiency and ease of use. With automatic raw material feeding, molding, and mobility, this high-capacity system streamlines the entire block-making process as its designed for large-scale production.

Details:

• Price starts from (excluding shipping): $18,000
• Capacity: 8’ hollow brick (400×200×200mm): 19,200-28,800 pcs/8 hours
• No pallet required
• Power: 16kw

QMY12A Cement Machine

The QMY12A Brick Production Machine is a high-capacity, fully automated mobile system equipped with hydraulic technology for efficient block manufacturing. Designed for ease of operation, it requires just one person to run and eliminates the need for pallets, reducing both labor and material costs while maximizing productivity.

Details:

• Price starts from (excluding shipping): $21,500
• Capacity: 8’solid brick: 34,560 pcs/8 hours
• No pallet required
• Power: 16kw

QMY18A Cement Machine

The LONTTO QMY18A is a high-capacity block production system capable of producing 18 pieces of 8-inch hollow blocks per cycle. Built with high-quality steel and precision welding, it ensures durability and a long service life.

Details:

• Price starts from (excluding shipping): $25,000
• Capacity: 8’ brick: 34,560-51,840 pcs/8 hours
• No pallet required
• Power: 24kw

QT3-20 Cement Machine

The LONTTO QT3-20 is a fully automated block production system that utilizes materials such as fly ash, cinder, concrete, stone, and sand to create high-quality blocks. Equipped with a hydraulic station and a secondary color layer feature, it is ideal for producing paver blocks. Its advanced hydraulic system ensures each block is dense and durable, while the PLC control system automates material loading and molding, eliminating the need for manual labor.

Details:

• Price starts from (excluding shipping): $11,500
• Capacity: 8’Hollow Block: 4,320-5,760 pcs/8 hours
• Pallet size: 680×550 mm
• Power: 20.75kw

QT4-15 Hydraulic Machine

The LONTTO QT3-20 is a fully automated block production system that utilizes materials such as fly ash, cinder, concrete, stone, and sand to create high-quality blocks. Equipped with a hydraulic station and a secondary color layer feature, it is ideal for producing paver blocks. Its advanced hydraulic system ensures each block is dense and durable, while the PLC control system automates material loading and molding, eliminating the need for manual labor.

Details:

• Price starts from (excluding shipping): $15,000
• Capacity: 8’Hollow Block: 7,680-11,520 pcs/8 hours
• Pallet size: ×570 mm
• Power: 27.5kw

QT4-18 Full Automatic Machine

The QT4-18 is a high-efficiency block production system capable of producing 18 pieces of 8-inch hollow blocks per cycle. Its fully automated PLC control system enables seamless operation with minimal manual input, allowing a single operator to oversee the entire process. Designed for large-scale manufacturing, this machine ensures high-capacity output with precision and reliability.

Details:

• Price starts from (excluding shipping): $12,000
• Capacity: 8’hollow block: 34, 560-51,840 pcs/8 hours
• Pallet: 850×550 mm
• Power: 24kw

QT4-25C Automatic Cement Machine

The LONTTO QT4-25C is a highly versatile, fully automated block production system designed to manufacture hollow bricks, porous bricks, pavement bricks, and colored paver blocks. Powered by a Siemens PLC control system, it ensures precision, efficiency, and seamless operation. The entire process—from pallet supply and material distribution to finished product discharge—is fully automated, optimizing productivity and reducing manual labor.

Details:

• Price starts from (excluding shipping): $9,000
• Capacity: 8’Hollow Block: 4,608-5,760 pcs/8 hours
• Pallet size: 850×550 mm
• Power: 20.6kw

QT5-15 Hydraulic Cement Machine

The LONTTO QT5-15 is a highly efficient block production system that produces five 8-inch (400×200×200 mm) hollow blocks per cycle, with a fast forming time of around 10 seconds. Equipped with a hydraulic system and controlled by a Siemens PLC, it ensures smooth, precise, and fully automated operation. Designed for medium-scale production, this machine delivers reliable performance and high efficiency, making it an excellent choice for growing manufacturing facilities.

Details:

• Price starts from (excluding shipping): $20,000
• Capacity: 8’Hollow Block: 9,600-15,040 pcs/8 hours
• Pallet size: × 570 mm
• Power: 32kw

QT6-15 Hydraulic Cement Machine

The LONTTO QT6-15 is a fully automated block production system capable of producing six 8-inch (400×200×200 mm) hollow blocks per cycle, with a rapid forming time of 10–15 seconds. Powered by a Siemens PLC control system, it ensures seamless and precise operation. For maximum efficiency, it is best integrated with an aggregate batching machine, a JS500 concrete mixer, a belt conveyor, and a block stacker, creating a streamlined and highly productive manufacturing process.

Details:

• Price starts from (excluding shipping): $25,000
• Capacity: 8’Hollow Block: 11,520-17,280 pcs/8 hours
• Pallet size: 900×700 mm
• Power: 32kw

QT8-15 Hydraulic Machine

The LONTTO QT8-15 is a high-capacity block production system capable of producing eight 8-inch (400×200×200 mm) hollow blocks per cycle, with a forming time of 10–15 seconds. Engineered for efficiency and reliability, it operates seamlessly through a fully automated Siemens PLC control system. For optimal performance, the production line is best integrated with an aggregate batching system, a JS750 concrete mixer, a belt conveyor, and a block stacker, ensuring a smooth and productive manufacturing process.

Details:

• Price starts from (excluding shipping): $30,000
• Capacity: 8’Hollow Block: 15,360-23,040 pcs/8 hours
• Pallet size: 950×900 mm
• Power: 51kw

QT10-15 Cement Machine

The LONTTO QT10-15 is a high-capacity block production system that is powered by a Siemens PLC control system. The machine operates with full automation for seamless production. Like the entire QT series, it is equipped with a hydraulic station, utilizing advanced hydraulic technology to ensure superior block strength, durability, and consistency.

Details:

For more cement bricks machineinformation, please contact us. We will provide professional answers.

• Price starts from (excluding shipping): $35,000
• Capacity: 8’Hollow Block: 19,200-28,800 pcs/8 hours
• Pallet size: ×900 mm
• Power: 67kw