Views: 7 Author: Site Editor Publish Time: 2021-01-06 Origin: Site
The raw liquids of the two components of A and B are accurately proportioned and stirred at high speed. Two high-precision metering pumps are used to transport the A and B components to the mixing head. After high-speed and intensive stirring, the material and liquid are evenly sprayed out to form the desired product. From the aspect of power, it can be classified into: high-speed impeller type, high-pressure air type, blast medium and low pressure type. A complete polyurea spraying equipment consists of the following systems: material flow system, metering system, gas circuit system, heating system, cleaning system, mixing device. Polyurea spraying equipment is a special equipment for polyurethane foam infusion and foaming.
As long as the polyurethane component raw materials (isocyanate component and polyether polyol component) performance indicators meet the formula requirements.
Even and qualified foam products can be produced through polyurea spray equipment. It is made of polyether polyol and polyisocyanate in the presence of a variety of chemical additives such as blowing agent, catalyst, emulsifier, etc., through chemical reaction to foam to prepare foam. Polyurea spraying equipment can be used for automotive interior decoration, thermal insulation wall spraying, thermal insulation pipe manufacturing, bicycle and motorcycle seat sponge processing. Polyurea spraying equipment is a special equipment for polyurethane foam infusion and foaming. The foaming principle of the polyurea spraying equipment: A and B two components of the original liquid, after precise proportioning and high-speed stirring, two high-precision metering pumps, each of the A and B components are delivered to the mixing head.
Polyurea spraying equipment is a special equipment for infusing and foaming polyurethane foam. As long as the performance indicators of polyurethane components (isocyanate components and polyether polyol components) meet the requirements of the formula. Through this equipment, uniform and qualified foam products can be produced. It is made of polyether polyol and polyisocyanate in the presence of a variety of chemical additives such as blowing agent, catalyst, emulsifier, etc., through chemical reaction to foam to prepare foam.
Precautions for the operation of polyurea spraying equipment 1. For the operation of polyurea spraying equipment, you must wear protective glasses, work clothes and work caps, and rubber gloves for polyurethane A and B composite materials. The working environment must be well ventilated, clean and hygienic. When the ambient temperature is high, the foaming agent in the polyurethane A material will partially vaporize and generate pressure. Therefore, the vent cover should be opened to discharge the gas and release the pressure before opening the barrel cover. 2. When polyurea spraying equipment has flame retardant requirements for foam, polyurea spraying equipment can use additive flame retardants. The addition amount of ordinary flame retardants is 15-20% of the weight of the white material, and the flame retardant is added to polyurethane A material It must be stirred evenly before foaming. 3. During the manual foaming operation of the polyurea spraying equipment, the polyurethane A and B combined materials are accurately weighed in proportions and poured into the container at the same time, stirred with a stirrer above 2000 rpm for 8-10 seconds, and then poured into the mold for foaming The demolding time depends on the product requirements, foam thickness, etc. 4. When the skin comes into contact with the combined polyurethane A material, use soap and water to rinse. When the polyurea spraying equipment is handling the polyurethane B material (it has a certain irritation), do not inhale its vapor and do not splash it on the skin and eyes. When it reaches the skin and eyes, it must be wiped off with medical cotton immediately, then rinsed with plenty of water for 15 minutes, and then rinsed with soap or alcohol.
Polyurea spraying equipment is inseparable from heat during operation, so how much influence does temperature have on the polyurethane foaming agent? The foaming machine relies on heat to operate. With the heat, the foaming agent will evaporate to produce foam. The heat comes from two aspects, one is the heat generated by the chemical reaction, the other is provided by the environment, and the former is Fixed, not affected by external factors, the heat provided by the environment changes with changes in the ambient temperature.
Temperature is very important for polyurea spraying equipment. Experiments show that the foaming volume at an ambient temperature of 15°C is 25% smaller than that at 25°C. On the other hand, a layer of insufficient foaming or even insufficient foaming will be formed on the surface of the foam. The non-foaming hard skin increases the amount of foam infusion and increases the cost of foam production. Therefore, we must strictly control the environmental temperature factor during the operation.
São Paulo, Hightop Group toured 11 international construction machinery exhibitions across 9 countries in the first half of 2026, connecting global buyers with mini excavators, skid steer loaders, mowers, and golf carts.
Foundation cracks can lead to serious structural problems if not repaired properly. This article explains how polyurethane foam injection technology works, why contractors choose high pressure polyurethane foam injection machines for crack repair, and how CNMC E3 polyurethane foaming machine provides an efficient solution for waterproofing and foundation restoration projects.
On July 10, the Golf Performance Convention (GPC) Tokyo 2026 officially closed its doors at Tokyo Big Sight, bringing three days of intense industry exchange to a successful conclusion. Over 300 exhibitors from across the globe showcased the latest in golf equipment, course maintenance technology, a
CNMC-65 Economy Pneumatic Polyurethane Spray Machine, weighing only 54kg, features a 65:1 high-pressure pressure exchange ratio and a 7.5L/min single-group flow rate, suitable for 1:1 black and white material foaming construction. Pneumatically driven for safety and durability, it is widely applicable in small to medium engineering scenarios such as building exterior wall insulation, roof waterproofing and thermal insulation, cold storage foaming, and pipeline anti-corrosion and thermal insulation. This article provides a comprehensive analysis from three dimensions: product parameters, core advantages, and application scenarios, helping construction professionals make quick selections.
Hightop exhibits CE-certified mini excavators, BM750 remote-control tracked mowers, and off-road golf carts at the 2026 China Brand Goods Exhibition in Budapest. June 18–20, booth IE06-07. Custom procurement available.
Hightop showcases its upgraded golf cart for resort use at the 2026 Tokyo Golf Performance Convention. The electric tourism vehicles are designed for golf courses, resorts, hotels, and commercial transportation systems, offering comfort, safety, and long-term operational value for global buyers.
This article shares insights from CSPI EXPO 2026 in Japan, focusing on how Chinese construction machinery suppliers are expanding into international landscaping and agricultural equipment markets.
This article explains the working principle of a high pressure polyurethane foam injection machine, including material metering, high-pressure mixing, and spraying process used in construction insulation and waterproofing.
Hightop Group will showcase mini excavators and remote-controlled mowers at CSPI EXPO Japan 2026, Booth 20-77. OEM solutions available.
The CNMC-H800 polyurea spray machine is designed for high-pressure waterproofing and industrial coating applications, offering stable performance, intelligent control, and year-round operation even in low temperatures.
