Product Description
Machine Introduction
The QT4-26C block forming machine developed and produced by our company is a special equipment for producing building blocks. The machine can use fly ash, slag, coal gangue or other industrial waste residues and river sand, gravel, cement and other materials to produce various hollow blocks, porous bricks, standard bricks and other concrete products by changing the mold. The machine can form a simple production line with the J350 mixer, 6-meter belt conveyor, etc.
Structure Advantages
QT4-26C block forming machine is a small fixed table vibrating concrete block forming machine. It uses a combination of mechanical and electric working methods to complete various actions. It is simple to operate, reliable in operation, and easy to maintain. The block production adopts table vibrating material distribution, and the upper and lower vibrations are formed. The block forming speed is fast, the density is good, and the strength is high. The electric push-pull mold enters and exits, the labor intensity is low, and the production efficiency is high. Two feeding methods of electric and manual feeding are available for users to choose. The lifting and lowering of the mold, the block forming in place, and the start-up of the upper and lower vibrators are completed by the cooperation of the electrical control and mechanical parts, so that the equipment runs accurately and reduces damage caused by misoperation.
Product Parameters
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Hollow Block
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400x200x200 mm
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4 pieces
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mould /forming
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Solid Block
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240x115x53 mm
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21 pieces
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mould /forming
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Hollow Block
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400x150x200 mm
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5 pieces
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mould /forming
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Note: Can customized the mould if need special block size.
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Machine Technical Parameters of QT4-26 Brick Forming Machine
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Overall Dimension
2060x
1700x
2560mm
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Forming Cycle
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26 seconds
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Motors Power
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14.25KW
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Vibrating Frequency
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4200 rolls/minute
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Pallet Size
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850x450(mm)
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Main vibration form
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Platform vibration
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Exciting force
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35.5kn
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Overall weight
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2750kg
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Mould
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1 set for free
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Process Flow
Production Process of Concrete Bricks / Blocks
1.Mixing
Sand and gravel are stored in silos outside and then transfer through conveyor belt when needed and the cement is stored in silos to make it safe from moisture. When the mixing has started the sand, gravel and cement are coming out from silos via weighing batcher which weighs every material. The dry materials enter into a mixer where they are blended for a few minutes. There are mainly two types of mixers that use one is planetary or pan mixer also known as a shallow pan with a lid. The mixing blades are attached to a vertical rotating shaft with a mixer. Another type is a horizontal drum mixer. This is a coffee turned on the side and has mixing blades attach to the horizontal rotating shaft inside the mixer. After the blending of dry materials, the small amount of water is added to the mixer. Now if the plant is located in warm places, the water is the first pass through heater or chiller to maintain the temperature. The mixing chemicals and color pigments added at this time and the concrete is mixed for six to eight minutes.
2. Molding
After the mixing, the concrete is dump into bucket conveyor and transported to an elevated hopper and the mixing cycle begins after the next load. After that, it is conveyed to other hoppers on the block machine at a controllable speed. Then concrete is downward to flow rate and it pours into molds. In the molds, there is an outer mold box that contains other mold liners. Liners have an outer shape of the block and inner shape of block cavities. There are 5 to 15 blocks are molded at one time depend on machine capacity. After the mold filled with concrete, the hydraulic press compresses the concrete into the mold. The compression is complete by air or hydraulic pressure. Many of concrete bricks and concrete blocks machine uses vibration for completion of the process. After that, the blocked are pushed out of the mold onto a flat steel pallet. The pallet and blocks are push out of a machine to the chain conveyor. Some of the machines have a feature of rotating brush and it removes the loose material from the top of the blocks.
3. Curing
Now the pallets of a block are conveyed to an automated stacker or loader and this places them in a curing rack. There are several hundred blocks on each rack. After the rack is full it is rolled onto a set of rails and then moved to a curing kiln. This is the room having the capacity to hold several racks of the blocks at a time. There are mainly two types of curing is used. First is low-pressure kiln where blocks are held for one to three hours at room temperature to harden slowly. Then the steam is introduced at 60o F (16o C per hour) to raise the temperature for hardening. The standard weight blocks are cured at 150-165o F(66-74o C) and lightweight blocks are cured at 170-185o F (77-85o C). After reaching the temperature steam is shut off and blocks soaked the hot, moist air for 12-18 hours. The curing process takes about 24 hours. The other type of kiln is high-pressure steam kiln it is also known as an autoclave. The temperature in this kiln is 300-375o F (149-191o C) and the pressure is 80-185 psi about 5.5 to 12.8 bar. The blocks are held for 5 to 10 hours. The pressure is vented and blocks release the moisture inside. The autoclave curing process is using more energy and also more expensive but it produces more blocks in less time.
4. Cubing
Racks of the cured blocks are then rolled out the kiln and the pallets of a block are unstacked and place on a chain conveyor. After that, the blocks are pushed off the steel pallets and the empty pallets are fed back to the block machine for new blocks. If there is a split-face block, it first molded as two blocks joined. After the curing completed of double blocks, it passes through a splitter, and the heavy blade strikes between two halves. The concrete bricks and blocks are pass through a cuber that aligns each block and stacks them into cube three blocks by six blocks deep by three or four blocks high. Then the cubes are carried outside with a forklift and store for dispatch. Quality Manufacturing of the concrete bricks and blocks are required to constant monitoring for producing the blocks for required properties. Raw material weighed electronically before goes to mixer. The water content in sand and gravel measured by ultrasonic sensors and how much water is required to measure automatically. For cold and warm conditions, the water has to pass through a chiller or heater before use. After coming out of the machine the height of the block should check with laser beam sensors and in the curing chamber the temperature, pressure, and cycle time should be check properly and record automatically to ensure that the blocks should cure properly for maximum strength.
Successful Plants
Hongfa Successful Cases Plant In Africa
Block Samples
Packaging & Shipping
When we get the confirmation of the drawing and mould design, we will start production. When the production is finished, the brick machine making equipment will be well-naked packing or stretch film packing to protect the machine during shipment. At the same time, the customer's special packing requirements are acceptable as we are a flexible customization manufacturer.
Company Profile
Hongfa Machinery is your best choice.
Brand and quality
We are a construction and building materials equipment manufacturer mainly produce all kinds of AAC block making machine,concrete mixing plant,mixer,concrete block making machine,concrete tile making machine and concrete pipe making machine etc. with more than 30 years experience and being the biggest manufacturer in China at present.All the products are conformity with the standard of the state, and gets the ISO9001-2000 Quality System certificate, also honored as "One of the Top Ten Famous Brands of Brick & Tile field in China" and other honors.
Hongfa Machinery's Honor
1.One of Top Ten Influential Brands in China Brick &Tile Industry
2.China National Enterprise Abiding By Contract & Keeping Good Faith
3.Quality and Credibility of the Dual-protection Demonstration Unit
4.High and New Technology Enterprise
5.Famous Trademark of China
6.Star Enterprise with China Patent
7.AAA Grade Credit Enterprise
8.Consumer Satisfaction Unit
9.One of Top 100 building Material Industry Brands of China
10.One of Top Ten Good Faith Units
11.Advanced Exporter in Guangxi Province
12.Advance Quality Management Unit.
FAQ
1. who are we?
We are based in Guangxi, China, start from 2011,sell to Eastern Asia(40.00%),Domestic Market(20.00%),Mid East(15.00%),South America(12.00%),Southeast Asia(8.00%),Africa(3.00%),South Asia(1.00%),North America(1.00%). There are total about 101-200 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Concrete Block Machine, EPS Cement Wall Panel Machine, AAC Block Production Line, Fiber cement board production line, Roof Tile Making Machine
4. why should you buy from us not from other suppliers?
more than 30 years machinery experience. Export to more than 120 countries and areas. The most well come and famous brand in China Offer the most competitive machines
5. what services can we provide?
Accepted Delivery Terms: FOB,CIF,EXW,CIP;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union,Cash,Escrow;
Language Spoken:English,Chinese
CUSTOMIZED SPECIALTY PROJECTS
Do you have an upcoming project that would benefit from all concrete brick and cement block production line has to offer? Tell us more about your project and let our team create a draft and estimate that fits your timeline.
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