ZJJ-1200 Fully-auto Vacuum Pressure Impregnation (VPI) System |
Insulation Treatment for HV Motors & Transformers
In the manufacturing of high-voltage motors, explosion-proof
motors, and transformers, the quality of insulation treatment is
critical to mechanical strength, moisture resistance, and overall
service life. WUXI WONDERY INDUSTRY EQUIPMENT CO., LTD. provides
the ZJJ-1200 Fully-auto Vacuum Impregnation Equipment, specifically
engineered to ensure deep resin penetration through alternating
high-vacuum and pressure cycles.
The system’s reliability is supported by rigorous industrial
manufacturing standards, including GB150-1998 Steel Pressure
Vessels and JB/T4709-2000 Welding Specifications. The core
impregnation tank, constructed from Q235B high-strength carbon
steel, features an air-filling silicone rubber sealing ring to
maintain structural integrity and airtightness under extreme
conditions, including a working vacuum of -0.095Pa and internal
pressure requirements.
To ensure process consistency, the ZJJ-1200 integrates a precise
level transmitter and a fully automated control system. The resin
storage tank is equipped with a multi-layer paddle agitator (25-36
rpm) and a 100mm cooling insulation layer filled with ethylene
glycol solution. This configuration prevents resin sedimentation
and maintains temperature stability, which is vital for the
chemical properties of the insulation medium. Additionally, the
hydraulic tank-opening system, integrated with safety interlocks,
ensures both operational efficiency and industrial safety.
Key Technical Specifications:
| Item | Technical Specification | Evidence & Standards |
| Effective Dimension | Φ1200 × 1000 mm | Vertical installation; 2-ton load capacity |
| Vacuum Degree | 1000 ~ 100,000 Pa (0~1 Bar) | High-performance vacuum pump for deep degassing |
| Material | Q235B Pressure Vessel Steel | GB150-1998 compliant with radiographic testing |
| Sealing Method | Air-filling Silicone Sealing Ring | Ensures "Zero" leakage under vacuum/pressure |
| Agitator System | 1.1KW / Multi-layer Paddle | 25-36rpm speed for optimal resin homogeneity |
| Cooling System | Ethylene Glycol Circulation | 100mm insulation with stainless steel armor |
