Shanghai Tuoba High Pressure Airless Spraying Equipment System
Shanghai Tuoyu Industry and Trade Co., Ltd. Wu Rujun
3.1 Equipment System
PermaFlo_ 830 Pump is a high performance paint spray pump with high liquid transport and atomization of thicker products. It delivers up to 14 litres per minute of liquid delivery and can simultaneously meet the requirements of several working spray guns. The components of the pump are designed with very durable materials and very precise technology to ensure high quality standards and long working life.
3.2 high pressure filter
The precision filter is installed on the pressure line of the spraying system to filter out the impurities mixed in the liquid paint and the gel produced by the chemical change of the liquid itself, and remove the liquid/coating impurities to make the sprayed paint/paint The liquid medium meets the requirements for use, thereby preventing the valve core from being stuck, the clogging of the orifice orifice and the orifice, and the excessive wear of the system components. Provide high quality protection for system equipment. In order to ensure the normal operation of the system equipment. The filter has good filtering effect and high precision.
3.3 High pressure flow regulator:
The function of the pressure regulating valve is to appropriately reduce the pressure of the nozzle according to the pressure change in the inlet pipe to meet the pressure of the gun, effectively protect the spray gun, and make the sprayed liquid/coating medium more suitable for use. 
Maximum pressure regulation
210 bar ( 3050 psi )
High pressure regulation
Standard pressure regulation
70-210 bar (1000-3050 psi)
0 - 70 bar (0-1000 psi)
Maximum flow adjustment
14 l/min ( 3.5 gpm )
Import interface size
3/8†npt
Exit interface size
1/4" npt
NH-4 heater
-- Simple design to control temperature
-- Balanced and effective heating
-- Operational safety
--Simple on-site repair
-- increase capacity
-- reduce pressure loss
--Anti-corrosion ability
--Safety standard approval
The LARIUS pre-heater is an explosion-proof refractory device with electronic function. It is used in airless and air spray systems. Its structure is certified by CESI according to the safety standards of explosion-proof products (approved grade EEX “D†IICT4), heater The passage of the medium coating is made of stainless steel. It will not rust when using any type of coating. The upper part of the heating device is an electronic control device, and the working parameters can be set quickly and conveniently according to the needs. (Nosin NORDSON's paint heater has no quick setting. Fixed function)
Heating technical parameters:
Input voltage:220V
Current:
11A
Heating element power:
2500W
Maximum working pressure:
350 bar
Maximum operating temperature:
120 ° C
Temperature setting range:
20-120 ° C
Output:
60 liters / hour 60 ° C
weight:
20 kg
Heating cycle airless spray system features
Increase in film thickness once By heating the "dilute" paint, the viscosity of the paint can be effectively reduced, so that it can be sprayed
The content of the paint is effective to increase the thickness of the film at one time (see Figure 4) and achieve a higher paint rate without sagging.
Figure 4 Film thickness of conventional airless spray and heating cycle spray
2) Shortening of drying and leveling time
An increase in the temperature of the paint accelerates the evaporation of the solvent, thereby shortening the drying and leveling time.
(Note: The heated paint does not return to the paint bucket, thus avoiding solvent evaporation caused by heating).
The coating quality is stable and is not affected by changes in the temperature of the four seasons and day and night.The circulating guns and valves ensure a constant circulation of the paint in the system, so that the proper paint temperature and viscosity are always guaranteed, the spray effect of the paint is unchanged, and the coating quality is stable.
Reduce paint overspray, avoid cross-color caused by paint rebound (accurate trimming), increase paint speed and save paintThe heating of the paint reduces the viscosity of the paint and reduces the required atomization pressure, resulting in a “softerâ€, more controllable spray that effectively reduces paint overspray and rebound “paint fog†(see Figure 5). Increase paint rate (25% to 50% increase)
Figure 5a Traditional airless spraying 
Figure 5b Heating airless spray
Conventional air spray produces an overspray airless spray system using high pressure atomized paint. The air pressure sprays the paint particles at a high speed onto the workpiece, while only a small portion remains on the surface of the workpiece, and most of the waste is wasted. In addition to overspray, the high-speed airflow that mixes the paint particles bounces off the “paint mistâ€, creating an air cushion that prevents the paint particles from being sprayed into the concave corners and deep cavities. The greater the viscosity of the coating, the greater the atomizing air pressure required. However, the greater the atomizing air pressure, the greater the overspray and bounce, and the lower the spray efficiency.
Limitations of traditional air spraying
Excessive overspray and rebound, very low lacquering rate requires the addition of high quality solvents to the coating to reduce the viscosity of the coating to a level that can be sprayed. Because in many cases, air spraying requires more than two coats. The layer can reach the set film thickness. The air spray gun has a small amount of paint, and the production speed is low. Because of overspray, the maintenance cost of the spray booth is high. 3.5 Automatic spray guns and nozzles:
The structure is compact, the spraying flow rate is large, and the A7A spray gun of the air control switch has a short waiting time for the reaction, and has no lacquering phenomenon, which can save the coating cost. It has been proved by production practice that the spray gun has good atomization effect, soft spray width, easy control, less overspray and high coating quality, which can meet the needs of various spraying.
The A7A spray gun can be sprayed with two paints. It has a double gun body, and the color change is fast and pollution-free. Two different color paints can be circulated in each of the two guns at the same time, or one gun body is being used for paint spraying. The other gun body is being cleaned with solvent or water.
The A7A automatic airless spray gun has the highest reliability in mass production and can be applied with paints, sealants and adhesives. Produces fine atomization and soft, controllable graphics for superior coating quality with minimal bounce.
The air-excited A7A gun triggers fast action (30 to 40 seconds) and has a high trigger frequency (up to 2500 trigger cycles per minute), making it ideal for precision spray applications.
The nozzle of the nozzle Drum Head produces a uniform flat spray at the end of the nozzle, while the nozzle and the tenter groove further atomize the spray jet to achieve excellent atomization at lower pressures. The spray width becomes softer, reducing paint bounce and waste.
3.6 High pressure pipeline:
The US SYNFLEX pipe is the world's largest fluid pipe. Companies such as Eaton/Eaton, GRACO/Graick, NORDSON/Noxin are their clients and are now acquired by Eaton/Eaton. In order to improve our competitiveness, we now also use SYNFLEX high-pressure metal pipes, but the whole roll comes in, and we crimp the joints according to customer demand/length.
Need more support, please contact, 6676 3513
Shanghai Tuoyu Industry and Trade Co., Ltd.
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