About Static Mixer Vacuum Resin Casting Machine
5.6 300L hardener counting tank system: same configuration as that for Item 4.5.
5.7 High precision carborundum counting pump system, two sets
- For counting & feeding resin and hardener separately; Pumps are mounted on the side wall of counting tanks. Each counting pump is comprised of ball screw, servo motor, servo driver, etc. Torque of servo motor can satisfy for pumping viscosity max. 8000mPa.s.
- Counting pump body is made by high quality carborundum from Germany, life more than million times feeding.
- Feeding speed 5-10kg per minute, counting precision +/-0.5%; Various casting proportion can be achieved and displayed on displayer for convenient adjustment.
- Quantification feeding, preset and controlled by PLC; All main valves are interlocked for safety.
- When the whole machine stops, counting pump will timely cycle materials for cleaning pipeline and mixing material.
5.8 Static mixer system, one
- Static mixer and casting system are mounted on top of casting tank. Static mixer is comprised of 15 pieces cross mixing blocks. After obtaining pressure from counting pump, material inside this mixer will have cross mixing for more than 100 million times. Flow speed matches the counting pump.
- Static mixer has quick temperature rising and quick cooling functions. When start working, mixer temperature can be raised to max. 90C very quickly; After casting finished, mixer can cool down to 15-25C very quickly thus delaying curing speed of two components.
- When changing casting material without stuffing, only change few parameters, very simple and convenient.
- Our design can avoid any small leakage because of wearing. There is real-time supervision function to assure reliable and stable running.
5.9 Vacuum casting tank
- Inner dimension: 2400mm (diameter) 3000mm (length)
- Round structure, horizontal laying
- Door side opening, hanged on one side of tank; manual lock
- Ultimate vacuity: less than 10Pa (idle, cool)
- Leakage rate: less than 50Pa.L/s (idle)
- Working vacuity: 100-300Pa
- Pumping speed: not more than 15 minutes from atmosphere to working vacuity
- Heating method: state-of-the-art electric heating plate method, heating plate from Germany;
- Heating temperature: ambient temperature to 120C (automatic adjustable, constant temperature, over-temperature alarming), temperature evenness 2C
- Tank body is rockwool insulated and stainless steel armored, outer surface temperature rise is not more than 10C plus ambient temperature.
- There are 12 sets pneumatic valves and injecting nozzles for casting. Injecting amount of every nozzle can be preset. The whole injection can be PLC control automatic or manual; Pneumatic valves are anti-wear treated, avoiding interior leakage. After whole casting finished, the static mixer and whole system can be cleaned by one single component.
5.10 Heating system, four sets
- Casting tank is heated by Germany heating plates, total power 48kW
- Each mixing & degassing tank and counting tank are heated by electric heater and transferred by mesotron, each 9kW;
- Static mixer and material transmitting pipeline share one electric heater, power 9kW
- Stuffing drying tank is heated by Germany heating plates, total power 18kW
- Each heating system adopts power-control module assuring temperature even and stable. Electric consumption in temperature-keeping stage is about 35% of total power, save energy.
High-Precision Resin Mixing and DispensingUtilizing a static mixer and PLC-based controls, this machine assures superior accuracy in blending epoxy, polyurethane, or silicone resins. The automated system minimizes human intervention, optimally maintaining the desired resin ratios and enhancing the integrity of cast components. With dispensing precision of 0.5%, users can achieve consistently reliable results regardless of batch size.
Advanced Degassing and Safety SystemsThis casting machine integrates an automatic degassing chamber and achieves vacuum levels up to 0.5 mbar, efficiently removing entrapped air and moisture for bubble-free castings. Comprehensive safety features, including overpressure, overtemperature safeguards, and an emergency stop mechanism, provide a secure and controlled operation environment.
Flexible and Robust Industrial DesignBuilt for versatility, the equipment accommodates various coil structures and resin types, with output capacities of 3-5 tons per batch. Heavy-duty, lockable castors enable easy relocation, while the corrosion-resistant finish and service-friendly access ports ensure enduring performance and straightforward maintenance in demanding industrial settings.
FAQs of Static Mixer Vacuum Resin Casting Machine:
Q: How does the static mixer vacuum resin casting machine ensure precise resin mixing for transformer casting?
A: The machine employs a static mixer coupled with PLC-based automated controls, ensuring resin components are mixed with an impressive 0.5% accuracy on the mixing ratio. This precision helps achieve consistent electrical and mechanical properties in transformer components, minimizing defects and optimizing product quality.
Q: What types of resins and coil materials are compatible with this machine?
A: The system is compatible with epoxy, polyurethane, and silicone resins, making it suitable for a range of transformer or electrical equipment applications. It also handles various coil materials, including copper, aluminium, and special grade polymers, offering versatility for different design standards and requirements.
Q: When is the automatic degassing system utilized in the resin casting process?
A: The automatic degassing chamber operates before and during resin dispensing to efficiently evacuate air and moisture from the mix, achieving a vacuum level down to 0.5 mbar. This process is essential for producing bubble-free castings and ensuring optimal dielectric properties in the final product.
Q: Where can the machine be installed, and how is it adapted for industrial usage?
A: Designed as a floor-mounted system with heavy-duty, lockable castors, the machine can be positioned in manufacturing facilities, transformer shops, or electrical equipment plants. Its robust construction and customizable electrical grid compatibility facilitate seamless integration into diverse industrial environments.
Q: What benefit does the PLC controller with HMI provide to operators?
A: The PLC controller combined with an HMI touch interface streamlines operation and monitoring, allowing for real-time adjustments, process tracking, and fault diagnostics. This results in reduced operator intervention, higher efficiency, fewer errors, and simplified maintenance.
Q: How is maintenance managed, and what support is available for downtime mitigation?
A: Maintenance is simplified through easy-access service ports and remote diagnostics capabilities. Should issues arise, quick troubleshooting minimizes downtime, and the robust construction with industrial-grade corrosion resistant paint enhances durability, further reducing service interruptions.
Q: What are the primary advantages of using this vacuum resin casting machine for exports and large-batch production?
A: With a capacity of 100500 liters per cycle and 35 tons batch output, the machine supports high-volume, export-focused production demands. Its consistent efficiency (>95%), minimal load loss, and customizable standards (IEC, IS, custom) make it ideal for international supply and tailor-made applications.