Chongqing Lushun Scientific & Technological Development Co., Ltd. is one of the leading manufacturers and suppliers of vacuum pressure impregnation system in China. With abundant experience, we are committed to providing high quality customized products with competitive price. Please feel free to buy advanced vacuum pressure impregnation system from our factory. Also, quotation is available.
ZKJ Series Vacuum Pressure Impregnation System
ZKJ Series Vacuum Pressure Impregnation System process begins with pre-treatment and high-vacuum deaeration to thoroughly remove moisture, contaminants, and internal gases from components.
It then utilizes negative-pressure injection, often enhanced by high-pressure forcing, to achieve deep penetration of insulating media into micro-pores.
Finally, the components undergo post-processing and precision temperature curing to form a uniform, dense insulation layer.
Technical Specification
|
Parameter |
VPI-1200 |
VPI-2000 |
VPI-3000 |
|
Tank Diameter |
φ1200 mm |
φ2000 mm |
φ3000 mm |
|
Ultimate Vacuum |
≤ -0.1 MPa |
≤ -0.1 MPa |
≤ -0.1 MPa |
|
Working Vacuum |
≤ -0.095 MPa |
≤ -0.095 MPa |
≤ -0.095 MPa |
|
Working Temp. |
Ambient–80°C |
Ambient–80°C |
Ambient–80°C |
|
Power Supply |
380V/50Hz (customizable) |
||
|
Operation Mode |
Manual (optional automatic) |
Note: Equipment design can be customized based on client specifications.
Advantages
ZKJ Series Vacuum Pressure Impregnation System compliant with the latest national standards for motor and transformer manufacturing. Features a rational control system, simple operation, high reliability, and stable long-term performance with excellent energy efficiency.
Superior to conventional impregnation: Achieves deeper, uniform penetration without air pockets. As a critical production process, VPI directly enhances product quality and manufacturing efficiency.
All-in-one sealed tank process: Bare components loading → vacuum impregnation → pressurization → pressure holding → depressurization → medium recovery → drain-off → cleaning. Parameters are fully customizable to meet specific product requirements. Ensures zero material waste, reducing costs.
Application
Power & Electrical Industry (Core Application):
High/low-voltage motors, new energy vehicle drive motors, wind turbine generators, transformers (dry-type/power), instrument transformers, power capacitors, and high-voltage cable insulation treatment.
Electronic Components Industry:
Insulation encapsulation for inductors, magnetic cores, electronic transformers, relays, ballasts, and high-frequency power modules.
New Materials & Powder Metallurgy:
Oil impregnation for powder metallurgy oil-retaining bearings, resin impregnation for carbon/glass fiber composites (prepreg process), and sealing reinforcement for porous metal parts.
Other Industrial Applications:
Moisture-proof insulation treatment for power tool motors, micro-specialty motors, household appliance coils, and military-grade electronic components.
FAQ
Q:What are the primary applications of the ZKJ Series VPI equipment?
A:The equipment is widely used in the power and electrical industries for high/low voltage motors, EV drive motors, wind generators, transformers, and sensors. It is also suitable for treating electronic components like relay coils, as well as new materials such as powder metallurgy porous bearings and carbon/glass fiber composites.
Q: How does the ZKJ Series ensure deep penetration of insulating varnish?
A:It utilizes a synergistic vacuum and pressure process. First, a high vacuum (down to ≤50 Pa for advanced models) removes air and moisture from internal pores. Then, insulating varnish is injected under negative pressure, followed by compressed air or nitrogen pressurization (0.3–0.8 MPa) to force the medium into micron-level gaps for maximum fill rates.
Q:What distinguishes the ZKJ "One-Tank" process from traditional methods?
A:Unlike traditional methods that require transferring parts between separate tanks, the ZKJ series completes the entire cycle-vacuuming, impregnation, pressurization, holding, draining, and cleaning-within a single sealed tank. This streamlined design improves production efficiency and ensures consistent product quality.
Q: What level of vacuum can the equipment achieve?
A:The standard models typically achieve a working vacuum of around 1–10 mbar. However, high-end models are capable of reaching extreme vacuums of ≤50 Pa (approx. ≤500 μbar), which is essential for thoroughly extracting residual gas and moisture from complex windings and layered structures.
Q: Is the curing temperature controlled precisely?
A:Yes. The post-processing phase involves curing in a temperature-controlled oven with high precision. The system maintains temperature accuracy within ±1°C to ±1.5°C, ensuring the formation of a uniform, dense, and bubble-free insulation layer.
Q:What are the technical capacity options available?
A:The ZKJ Series Vacuum Pressure Impregnation System ffers various models to suit different production scales, such as the VPI-1200, VPI-2000, and VPI-3000. These models feature tank diameters ranging from φ1200 mm to φ3000 mm and can withstand pressures up to 0.8 MPa, operating effectively within a temperature range of room temperature to 80°C.
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