Electric spray foam machine
Electric spray foam machine represents a company's R & D capability, it is far more difficult to manufacture pneumatic spray foam machine and hydraulic spray foam machine, so if you look at the strength of a spray foam machine factory, you must look at it to see if there is no research and development of advanced spray foam machine, we are the only one in China that can produce electric spray foam machine manufacturers, or get the Europe and the United States, the Middle East, South America, the customer's unanimous high praise, electric polyurethane Electric polyurethane foam machine is a very high transmission efficiency, and can be used flexibly machine equipment, can have polyurethane foam and injection, polyurea spraying, become the most sold products!
Electric Spray Foam Machine
With the growing demand for building insulation, industrial anti-corrosion, and energy-efficient construction, the Electric Spray Foam Machine has become the industry's top choice. Compared to hydraulic spray foam machines, its compact size offers a comparable pressure output, with more stable and reliable pressure than pneumatic spray foam machines. Thanks to its excellent flexibility and powerful spraying pressure, the electric spray foam machine not only provides efficient and uniform spraying results but also significantly outperforms traditional hydraulic machines in terms of environmental sustainability, construction precision, and material utilization. However, it is more complex to manufacture. After 18 years of technological accumulation and continuous research and development, our electric spray foam machines have achieved strong sales and received consistent praise from customers.
Working Principle of the Electric Spray Foam Machine (PLC + Motor Control Board Solution)
The core of the electric spray foam machine consists of a high-pressure pump, spray gun, mixing system, and heating temperature control system. In modern high-end equipment, these mechanical components are typically coordinated by a "PLC + motor control board (MCU)" system to achieve precise closed-loop control and intelligent management. The PLC is responsible for the overall logic management of the spraying process, including system startup and shutdown sequences, heating and temperature control, alarm monitoring, and human-machine interface interaction, while the motor control board uses high-speed closed-loop algorithms to control the pump's speed and pressure, precisely adjusting the A/B pump ratio. Through this layered control structure, the PLC and MCU each fulfill their roles, ensuring the system operates stably while providing rapid response capabilities to meet high-precision spraying requirements.
The A and B chemical components pumped out are first mixed thoroughly in the mixer. High-end machines may use static or dynamic mixers to ensure uniform distribution, creating stable foam density, closed-cell rate, and adhesion. The mixed material is then atomized by the spray gun and expands into foam as it is ejected. The spray gun's pressure and flow rate are adjusted according to construction requirements, ensuring even coverage on complex surfaces. Meanwhile, the heating and temperature control system maintains the temperature of the tank, pipes, and spray gun through multi-zone PID control, keeping the material at an ideal flowability to prevent blockages and incomplete reactions, ensuring continuous operation and high-quality spraying.
Electrical Components of the Electric Spray Foam Machine
- Control Unit
The control unit typically consists of a PLC and motor control board (MCU). The PLC manages the overall spraying process logic, including system startup/shutdown, heating temperature control, alarm monitoring, and human-machine interaction, while the motor control board is responsible for speed control and pressure regulation of the pump motor. With this layered control, the PLC handles macro logic and safety management, while the MCU provides quick response and precise control, ensuring stable and reliable spraying. - Drive Unit
The drive unit mainly includes the motor driver, contactors, and relays. Brushless DC motors or servo motors obtain precise voltage and current through the motor driver to regulate the pump's speed and output pressure. Contactors and relays control the motor's start/stop and electrical isolation, protecting the system from overloads or short circuits. - Sensors and Measurement Components
Sensors are essential for precise control in spray equipment and include pressure sensors, flow sensors, temperature sensors, and current sensors. Pressure and flow sensors monitor pump output and spray gun operation, temperature sensors ensure that the material and pipes remain within the ideal temperature range, and current sensors monitor motor load, enabling equipment protection and early warning functions. - Auxiliary Electrical Components
Auxiliary electrical components include fuses, push buttons, indicator lights, signal relays, and power modules. These components ensure the safety protection, operation control, and status display of the equipment. The power module provides stable DC voltage to the control unit and motor, while the push buttons and indicator lights allow for manual operation and operational status feedback, ensuring intuitive and safe operation. - Speed Control Mechanism
Although the equipment does not use traditional mechanical gearboxes, it achieves equivalent "speed adjustment" of pump output flow and spraying pressure through motor speed control and closed-loop control.- Direct motor speed adjustment allows for continuous flow rate adjustment.
- PID control dynamically adjusts to ensure stable output.
- Pre-set modes (low flow/high flow) can be selected via the control panel to meet different construction needs.
Advantages of the Electric Spray Foam Machine
The electric spray foam machine offers a transmission efficiency of up to 90%, a clear advantage over hydraulic spray foam machines. Its pressure is higher, its size is smaller, and it is easier to move. It also provides stable high-pressure output. Even the smallest model can achieve a pressure of 21 MPa, such as our E10HP and E2Mini models. It is particularly suitable for spraying polyurea materials, and the FD-2E model can even achieve up to 23 MPa, ensuring that materials remain evenly distributed even under complex construction conditions, resulting in high-quality spraying performance.
Furthermore, the electric spray foam machine has lower maintenance costs. It does not require large air compressors and generators; instead, only a 0.2m³/min air compressor and a 20 kW generator are needed to operate. Compared to pneumatic machines of similar pressure, which require larger compressors with less stable pressure output, the electric model’s compact design and stable performance make it a more ideal choice for applications such as residential building insulation, waterproofing, and small-scale polyurea construction.
Technical Specifications
| Model | FD-E10HP (Electric) | FD-411A (Pneumatic) | Graco Reactor E-10hp |
|---|---|---|---|
| Drive Type | Electric | Pneumatic | Electric |
| Raw Material Mix Ratio | 1:1 (FIXED) | 1:1 (FIXED) | 1:1 (FIXED) |
| Raw Material Viscosity Range | 200-1000 CPS (at working temperature) | 200-1000 CPS (at working temperature) | Suitable for polyurea/polyurethane |
| Max Fluid Working Pressure | 17 MPa (170 bar) | 17 MPa (170 bar) | 17 MPa (170 bar) |
| Max Fluid Temperature | 88 °C (190 °F) | 88 °C (190 °F) | 77 °C (170 °F) |
| Max Output | 2-9 kg/min | 2-9 kg/min | 3.8 L/min |
| Max Heated Hose Length | 60 Meters | Standard 45 Meters (Customizable up to 60 Meters) | 32 Meters (105 Feet) |
| Heater Power per Unit | 3000W×2 | 3000W×2 | 3000W×2 |
| Total Power | 11KW | 8KW | - |
| Voltage Options | 110V/220V 1-phase; 220V 3-phase; 380V 3-phase | 110V/220V 1-phase; 220V 3-phase / 380V 3-phase | 120V 1-phase / 230V 1-phase/3-phase |
| Air Supply Requirement | ≥0.1m³/min (without transfer pump) | 0.9m³/min | 0.112 m³/min (for Fusion Gun) |
| Machine Dimensions | 705×916×1166mm | 620×610×1162mm | 737×914×1168mm (230V model) |
| Gross Weight (Empty) | 150KG | 230KG | 108 KG |
Core Technical Advantages
- High pressure, long heated hose suitable for large-scale projects
- Low initial cost, pneumatic drive suitable for budget-limited scenarios
- Precise digital temperature control (Boost Heat), automatic overpressure relief, robust brand ecosystem for high-end applications
Summary
The electric spray foam machine is a high-tech device that combines mechanical engineering, electrical control technology, and chemical material processes. With high-precision motors directly driving the pump, a closed-loop control system, and temperature control technology, it provides an efficient, uniform, environmentally friendly, and reliable spraying experience.
Although it is complex and costly to manufacture, its clear advantages in construction precision, material utilization, and versatility make it an indispensable core piece of equipment for modern building insulation, waterproofing, and industrial coatings.
FAQ:
- Can the electric spray foam machine be used to spray polyurea?
Yes, the electric spray foam machine is specifically designed for spraying polyurea. It provides stable and powerful pressure output, with excellent mixing and spraying results. - How do I choose between an electric spray foam machine and a pneumatic one?
If your budget allows, the electric spray foam machine is the better choice. It offers more stable pressure, higher efficiency, and a clear performance advantage, though it is slightly more expensive than the pneumatic version. - What voltage does the machine require?
Our machines support multiple voltage configurations and can be customized to meet specific needs: 110V single-phase, 220V dual-phase/220V three-phase, or 380V three-phase power. - What size generator and air compressor are needed for the electric spray foam machine?
Typically, only a 0.2m³/min air compressor and a 30 kW generator are required to operate the machine.
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