Product Specification

Customizable Vacuum Pressure Impregnation (VPI) Systems for High-Voltage Motors and Transformers

Boost the performance, reliability, and lifespan of your high-voltage electrical insulation with our state-of-the-art, fully customizable Vacuum Pressure Impregnation (VPI) equipment. As a leading manufacturer, we provide turnkey VPI systems designed to meet the stringent demands of high-voltage motor, anti-explosion motor, and transformer production.

Our VPI process thoroughly impregnates windings with resin under precise vacuum and pressure, significantly enhancing dielectric strength, mechanical stability, moisture resistance, and protection against mold and corrosion. This results in superior electrical insulation that ensures your products operate safely and efficiently in the most challenging environments.

We deliver a complete solution, including on-site installation, commissioning, and comprehensive training for your team. 

Key Benefits of Our VPI Equipment

• Superior Insulation Treatment: Achieve complete penetration of insulating resins for unmatched dielectric and mechanical performance.

• Enhanced Product Longevity: Protect windings from moisture, chemicals, and environmental contaminants to extend service life.

• Customizable Design: Every system is engineered to your specific requirements, from tank dimensions to automation levels.

• Built to the Highest Standards: Manufactured in compliance with GB150, JB/T4709, and JB/T7674 standards, ensuring safety, durability, and reliability.

• Turnkey Solution: From foundation drawings to on-site training, we provide everything you need for a successful installation and operation.

Complete VPI System Supply Scope

Our comprehensive supply includes everything required for a fully operational impregnation line:

1. Vacuum Pressurizing Impregnating System (1 set)

2. Resin Storage & Mixing System (1 set)

3. High-Efficiency Vacuum System (1 set)

4. Hydraulic Cover Locking System (1 set)

5. Intelligent Cooling System (1 set)

6. Resin Supply & Return Valve System (1 set)

7. Automated Electrical Control System (PLC) (1 set)

8. Ventilation System (1 set)

9. All Installation Materials (1 set)

Technical Highlights & Key Features

Vacuum Impregnation Tank

• Dimensions: Customizable (Standard: Φ3300×3500mm)

• Working Pressure: Up to 1.0 MPa (adjustable)

• Limit Vacuum Degree: ≤ 100 Pa

• Construction: High-strength Q345-R/16MnR steel plates.

• Safety: Full over-pressure alarm, safety interlock mechanisms, and pressure relief devices.

• Operation: Hydraulic tank cover operation with non-contact switch signaling. The design allows for unobstructed workpiece loading.

• Sealing: Highly reliable inflatable silicone rubber sealing ring and upper/lower misaligned flange design.

Resin Storage Tank

• Features: Motor-driven multi-layer paddle agitator for consistent resin viscosity.

• Temperature Control: Integrated cooling jacket with 100mm insulation layer (ethylene glycol solution) to maintain optimal resin temperature.

• Monitoring: Magnetic flip level gauge, continuous level display, low-level alarm, and automatic valve shut-off to prevent backflow.

• Viewing: Equipped with sight lights and observation windows.

High-Efficiency Vacuum System

• Configuration: High-capacity combination typically including an H-150 Slide Valve Pump and ZJ-300 Roots Pump for fast, three-stage pumping.

• Protection: Includes a vacuum buffer tank and exhaust gas condenser to protect pumps from contamination and condense volatiles.

• Control: Intelligent digital vacuum gauges and absolute pressure transmitters for precise process control.

Control & Safety

• Automated Control: A modern PLC-based electrical control system allows for easy programming and monitoring of the entire impregnation cycle.

• Comprehensive Safety: Engineered with multiple safety layers: safety interlocks, pressure/vacuum relief devices, and automatic shutdown functions.

Quality & Documentation

We guarantee quality and transparency. Every system includes full documentation:

• Pressure Vessel Design & Compliance Certificates

• Material Test Reports (MTRs) and Welding Reports

• Non-Destructive Testing (NDT) Reports

• Pressure Test Inspection Reports

• Complete Manuals: Operation, Maintenance, and Troubleshooting Guides

• Drawings: Foundation Plans, Process Flow Charts, and Electrical Schematics

• Certificates for all bought-in components (pumps, PLCs, sensors)

Ready to Enhance Your Insulation Process?

Searching for "transformer impregnation equipment," "motor VPI system," or "custom vacuum impregnation tank"? You've found the solution.

Contact our engineering team today to discuss your specific application needs. We will provide a customized system design and a competitive quotation.

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