Wuxi Wondery Industry Equipment Co., Ltd
Advantages: More than 10 years experience in industrial equipment; Advanced processing equipment and technology; Full technical support for pre-sales and after-sales; A team of senior engineers for
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Semi automatic VPI 800 0.6Mpa 100 Pa Vacuum Impregnation Equipment for motor windings
1. General Introduction
VPI is especially critical for high-voltage motors, traction motors, and applications requiring robust insulation
(e.g., automotive, industrial machinery).
The resin seals windings from moisture, chemicals, and contaminants, preventing corrosion and short circuits
caused by external agents. Vacuum impregnation equipment for motor windings serves several critical functions
to enhance the performance, durability, and reliability of electric motors. Vacuum impregnation (VPI) combines
vacuum cycles to remove air and pressure cycles to force resin into micropores, ensuring complete penetration
in a single step. This is more effective than traditional methods.
Here are the key functions based on the search results:
1.1Enhanced Insulation and Dielectric Strength:
1.2 Improved Mechanical Strength:
1.3 Superior Thermal Conductivity:
2. Typical VPI Process Steps:
• Place stator/rotor in a sealed vessel.
• Apply vacuum (e.g.,100Pa to remove air and moisture).
• Introduce resin under pressure (e.g., 0.6Mpa).
• Cure thermally to harden the resin in a curing oven.
3. Supply Scope
| No. | Item | Q’ty |
| 1 | Vacuum Pressurizing Impregnating System | 1 set |
| 2 | Resin storage system | 1 set |
| 3 | Vacuum system | 1 set |
| 4 | Hydraulic system | 1 set |
| 5 | Cooling system | 1 set |
| 6 | Heating system | 1 set |
| 7 | Resin Supply and Returning valve system | 1 set |
| 8 | Control system | 1 set |
| 9 | Installation material | 1 set |
4. Technical Parameters
| NO. | Item | Parameter | Remarks |
| | Vacuum impregnation tank size | Φ800×1000mm (Effective height) | |
| | Material of autoclave
| Head: 16MnR Tank body: Q345-R Flange: Q235-B forging. | |
| | Working vacuum degree | 100~500Pa |
|
| | Working pressure:
| 0.6MPa | controllable and adjustable |
| | Automation level | Semi-automatic | Push button control |
| | resin storage tank size | Φ800×1000 mm (Effective height) | |
| | Materials used | Head: Q235-B Tank: Q235-B
| |
| | Working vacuum of storage tank | -0.095Mpa | |
| 10 | Function of resin storage tank | Heating and cooling | Optional |
| | Vacuum pump system | 1 set of 2X-15 rotary vane pump, 1 set of ZJ-70 Roots pump | |
| | Hydraulic system working pressure | 12Mpa | |
| | Cooling system | Power: 5HP—380V; Cooling capacity: 15000W/H; Cold water flow rate: 3m³/H. | |
| | Heating system power | 15KW | |
| | Electrical control system components brand | Schneider, Chint, etc | |
| | On-site installation method | Not needed |