Yantai Sanli Machinery Co., LTD
Contact: nick zhu
No.008, Jianshe Rd
Yantai, shandong 264100
China
Phone: 86-13405357009
Fax: 86-535-4716681
Sanli company is one leading manufacturer specialized in the powder coating production line, including mixer, extruder, crusher, grinder, Bonding Metal Powder Mixer.
we are dedicating ourselves into developing new models and keep an eye on the market demands, According to customer's requirements, we would like to carry on the omni-directional service such as the technology process design, the model select, the automation formulation, installation and debugging, the prescription formulation, product line testing, as well as technical training. Fore more information, PLS link our website. or send email to ellaben#126.cm(# for less spam).
Besides, we also pay more attention to promote our equipment by advertising on the professional website, to make more customers acquaintance with our equipment.
We are confident, our prices can't be beat. Every year, about 600 product lines are needed in Chinese market, during which 40% (say 240 lines) is supplied by Sanli Company. What we advocate is quality to win, but not the low-currency dumping, which helps maintain a stable increase of client group. So our clients always rest assured our quality is guaranteed.
We appreciate your further response.
Powder Caoting Product Line
The production of powder coating is a multistage polymer processing operation.
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Pre-mixing and dry blending
The first stage is to accurately weigh the required dry powders and then mix them together. This produces the pre-mix.
Compounding
The second stage is described as compounding and is commonly carried out in an extruder.
The pre-mix is fed into the extruder where it is compacted and heated until it melts. Shear forces then break down the pigment aggregates to form a homogenous dispersion which is subsequently discharged from the extruder.
Cooling/Flaking
The next stage converts the hot melt into a cool, hard, brittle strip by passing it through cooled rollers. Depending on the size of the extruder and its production rate, the extrudate may be further cooled on a cooling band. The final operation in the cooling stage is to break the cold, brittle extrudate into small flakes around 5 to 15mm (called kibble) in diameter, using rotating hammers fitted at the end of the cooling stage. Toner powders are also sometimes further pulverized down to between 50 to 250µm to give a product called kneaded toner.
Milling/Classification
The final stages of the manufacturing process are milling or grinding, and classification. These processes convert the kibble or kneaded toner into a fine powder with a specified particle size range. In the coatings industry micropulverizers are most commonly used for this application. Toner processes tend to use impact or jet milling.
Kibble or kneaded toner is transferred from a feed hopper into the mill/pulverizer by a screw feed. This screw further reduces the product size as it feeds the mill. The product is carried in an air stream into the milling stage(s) where it is reduced to a fine powder by a rotating disc fitted with metal pins or, in a jet mill, by being fired directly at ceramic collision plates, or at another material stream. The milling or pulverizing is caused by the product particles impacting with ceramic plates, each other, or with the rotating pins depending upon the mill design.
The milled powder is transferred from the mill/pulverizer on an air stream designed to ensure that oversized particles drop down for return to the milling chamber. Particle size distribution is effectively controlled using a combination of rate of feed and mill parameters such as speed of rotating pin disc and/or air velocity.
In toner applications either cyclonic or mechanical wheel separation is used to separate the oversize particles for further milling. Most toner manufacturing plants have between two to four classification stages to deliver the final particle distribution needed. Powder transport between each classification stage is done by vacuum transfer. The transport air is separated from the powder using either cyclonic or mechanical wheel separation. The extracted air is filtered to remove any unwanted fine powder.
Collection
The milled/classified powder is then transferred to a collection chamber. This may be a cyclone in which powder falls to the bottom whilst air is exhausted from the top, filtered and then exhausted to atmosphere, or a bag filter system. In toner applications the powder is generally collected in a weighing vessel. This allows batch processing with other additives (such as silicates) which are required for the copy process. These additives are fed by separate screw feed system and the batches are mixed together mechanically then discharged to the packing stage.
Finished powder generally undergoes a final sieving process to remove any possible contaminants before being packed ready for sale or use.
Bonding Powder Coating Mixer
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The metal powder coating is one kind of coating which is the most widely used in the 21st century, also is the most difficult subject to grasp in technology and production craft. For this topic, Sanli Co. successfully developed the (Bonding) Metal Powder Coating Mixer, and filled the blank in China. The mixer can be compared favorably with the ones by the Germany Mexico, Austria BENDALUTZ. In the international market, the machines price is marked at 30 - 400,000 US dollars, yet our price is only one tenth of them, though we have kept pace with the level of quality, technology, manufacture and so on the developed country. Sanli's Mixer can help you to solve all the difficulties in the process. Sanli's Bounding Metal Powder Mixer can also make you to be returned good benefits in short time and can give your enterprise to bring the considerable economic efficiency.
Feature:
Bonding: This method is to reliably agglutinate the powder coating particle and the metal powder pigment particle (the common floating, the no- floating aluminum powder, etc).
Merit: The orientation of the bounding powder is very good, the flash effect of processed metal is also nice, the powder color in different batch is extremely Homogenous, the atomization by the gun is Potent, and the metal flash spurted powder may be recycled 100%, having no waste. The bounding powder's performance has been greatly improved, compared with Dryly Mixing Method, the probability of jamming spurting gun obviously reduces because of better atomization.
Dry mixing
Most of factories in china make the need from the finished powder coating and the metal powder, by the high-speed mixer, the tilting mixer, V shape mixer or three-driving water-cooling mixer,. Because the shapes and proportion of the two kinds of particle are completely different, so the physically mixing effect is not ideal, especially, the floating aluminum powder particle is very weenie, so it is easy to form the loose agglomerate, so the powder coating particle and the metal powder pigment particle is not completely agglutinated. Therefore, during the spurting process, the usage rate of the powder is very low, and the powder on the ground can not be recycled, the cost will be increased.
Extruders
GSJ Twin Screw Extruder
GSJ Twin Screw Extruder are designed with two co-rotating screw shafts. The raw materials in barrel are to be excellent dispersed and kneaded by the bushings and kneading blades on the two shafts precisely mesh.
Features:
?High throughput and excellent dispersion by design of high speed screw.
?barrel with efficient heat-exchanging system.
?Temperature of barrel controlled automatically.
?Barrel designed with opposite parts is easy to clean.
?Feeding system with volumetric screw.
?Excellent self-clean ability.
?Easy to clean and maintain.
?Safe to operate.
ZDJ Single Screw Extruder
ZDJ Single Screw Extruder are kneading and dispersing versatile system with wonderful performance for manufacturing powder coating and other fine products. The materials are to be sharp and homogeneously by the high-speed screw shaft with complex and reciprocal movement. The machine has been designed in consideration of the reliability and safety when the machine works with high speed. The protect system guarantees the machine work under the optimum condition and provides reliable protection to the machine and the operator.
Feature:
?High homogeneous?
kneading and excellent dispersion
?High throughput
?Efficient heat transfer and temperature control
?Twin screw side feeding system
?note the running tech parameters automatically
?3 models of electric control system for option:
??Touch screen computer
??Controlled by PLC
??Normal control
?Metal particle detector(option)
?Automatic protect and alarm
?Easy to clean and maintain
Service Regulations
l The engineers with strict training can provide the more high-quality live service for the customers.
l We can provide the latest technology, the ex-along theory and the most practical training for the customers. Once trained, everyone get the master.
l The professional teams trooped in every corner guarantee the customers to get duly service.
l After receiving the telephone advice, we will reply accurately in 2 hours and respond quickly 4 hours.
l Every part is designed and produced by us; the parts are in abundance in stock, so that our customers have no worry to spend too much money and time for the maintenance.
l The technology is updated rapidly, so that our customers will use the most advanced equipment.
