DF-20/35B high-flow hydraulic polyurea spraying equipment is designed and developed for continuous application of spray polyurea elastomer in large area. Its motor power, heating wattage, and proportioning pump are enhanced one time stronger than the original specification. The equipment has many excellent features such as high-efficient construction, uniform mixture, fast heating, and extremely high cost performance, etc. It also possesses the largest flow and highest efficiency of construction in polyurea spraying equipment industry home and abroad. Its wide application especially in high-speed railway project wins good reputation from the customers.

Horizontally Opposed Proportioning Pump

Horizontally opposed two-way proportioning pump adopts coaxial design, which can eliminate the pressure difference completely caused by nonuniform loading resulting from gravity. The pump could also enables the working pressure to stay more stable and prolong the service life of sealing parts. Every proportioning pump is equipped with over-pressure protection switch that can stop working by controlling the electric circuit in the event of reaching to maximal pressure.

Heating System：

The heating system of the base machine adopts separate aluminum heater equipped with 16 high-power heating rods, thus it has stronger heating capability allowing for low-temperature operation in winter. Fitted with independent digital touch temperature controller, temperature measuring system and over-temperature protection system, it can also achieve material temperature control precisely.

Self-cleaning Sealing

Solvent bottle equipped on the side of Material A could utilize the lubricant inside of it to rinse the sealing of metering pump in Material A continuously. By doing this way, can prevent crystallization of isocyanate on bearings and reduce abrasion so as to prolong the service life of its component parts and reduce the maintenance times.

Pressure Compensator

In order to reduce the pressure fluctuation whilst the equipment is running, a pressure compensator is built in the hydraulic pump to ensure the stability of pressure to achieve the effect of uniform mixture during operation.

Hydraulic Driven

The hydraulic system adopts imported electric engine and motor as its main components for long periodical time of operation. A radiator is mounted to the hydraulic system as well to preclude potential breakdown and abnormal operation resulting from the high temperature of hydraulic oil.

Differential Pressure Display System

Pressure display panel for Material A and B are set on counter of base machine. It allows to manage the working pressure of the equipment at any time. When the equipment comes to occurrence of bias voltage, the alarm will buzz immediately so that the nonuniform mixture caused by bias voltage could be eliminated in advance.

 

型号Model	DF-20/35B型
最大流体温度 Maximum fluid temperature	80℃
最大输出量 Maximum output	18L/min
最大输出工作压力Maximum fluid working pressure	25Mpa
加热功率 Heater wattage	28kw
软管最大长度 Maximum heated hose length	120m
电源参数 Power requirement	380V-105A
驱动方式 Drive mode	Hydraulic driven
体积参数Dimension	1086mm*980mm*1400mm