Semi-automatic VPI System Φ1500 × 2000 mm +0.6Mpa Vacuum Pressure Impregnation Equipment for High Voltage Motor & Transformer

VPI1500×2000 | +0.6Mpa Semi-auto Vacuum Pressure Impregnation Equipment | VPI System for High Voltage Motor & Transformer

I. Product Overview

The VPI1500×2000, manufactured by WUXI WONDERY INDUSTRY EQUIPMENT CO., LTD., is an industrial-grade Semi-automatic Vacuum Pressure Impregnation (VPI) System. This processing unit is heavily relied upon for the advanced insulation treatment of high-voltage electric motors, specialized anti-explosion motors, and heavy-duty transformers. By inducing deep vacuums down to 100Pa and introducing positive controllable pressures up to +0.6Mpa inside a vertical autoclave, the system guarantees flawless resin penetration into the micro-cavities of the copper windings, thereby optimizing mechanical strength, electrical insulation reliability, moisture resistance, and anti-mold scores.

II. Industry Challenges & Causes

• Problem: Air Voids and Intermittent Resin Film inside Windings Leading to Corona Discharging or Electrical Puncture.

  Cause: Standard Atmospheric Dipping Failures. Ordinary dipping or low-vacuum systems cannot fully evacuate trapped air bubbles buried deep within high-voltage coils. When high operating voltages are applied, these remaining microscopic air pockets ionize, causing dielectric breakdown.

• Problem: Gradual Premature Curing, Gelation, and Sedimentation of Precious Stored Insulating Resins.

  Cause: Absence of Homogeneous Mixing and Dynamic Cooling Jackets. Especially in high-ambient environments like the Middle East, stored resins undergo accelerated cross-linking and decay if the holding reservoir lacks uniform paddle-agitation and cooling thermal blankets.

• Problem: Sluggish Vacuum Drawdown Speeds and Contaminated Pump Oil Truncating Batch Productivity.

  Cause: Low Displacement Volume and Missing Vapor Interceptors. Volatized monomer vapors generated during hot cycles migrate straight into the vacuum pump assemblies if a proper buffer catcher is missing, fouling the lubricant oil and destroying the ultimate vacuum boundary.

III. Our Solution

• Dual-Stage Heavy Duty Vacuum Package: Fully integrated with a premium 2X-70 Rotary Vane Pump + ZJ-150 Roots Pump combination, delivering a supreme volumetric pumping velocity up to 300L/S to reach ultimate vacuum limits down to 100Pa safely.

• High-Security Certified Autoclave Structure: Constructed using dedicated pressure vessel grades—the vessel head features 16MnR steel, the main shell relies on Q345-R plate, and the quick-lock ring mechanism incorporates forged 16MnR components. Backed by a 12MPa heavy hydraulic station, the lid handles stepless auto-rotation, locking, and mechanical anti-drop actions flawlessly.

• Fully Encapsulated Climate-Controlled Resin Vault: The storage tank (Φ1600×1600mm) is shielded by a 100mm fire-retardant thermal insulation layer encased in sleek stainless steel armor. Driven by a heavy 15HP refrigeration chiller yielding 50000W/H cooling capacity with ethylene glycol coolant fluid, the multi-layer mixing paddles (25-36rpm) keep the chemical batch at a pristine, uniform temperature.

• Proactive Fail-Safe Hardware Interlocking Grid: Outfitted exclusively with premium Schneider low-voltage components inside a centralized powder-sprayed cabinet. Integrated safety sensors enforce a strict interlock: if the interlocking flange teeth are misaligned or open, the primary hydraulic loop automatically locks out, preventing accidental human error or unsafe overpressure states.

IV. Technical Specifications

V. Selection Guide (How To Choose)

1. Clearance and Tooling Height Audits: The certified processing envelope is 1500mm inside diameter by 2000mm vertical height. Operators must subtract the physical spacing required by crane hooks, lifting eyes, and bottom support trays to confirm that the largest assembly fits inside comfortably without obstructing the hydraulic dome lid.

2. Plant Utilities Allocation (Buyer's Scope): The customer facility is responsible for routing a stable filtered dry air supply capable of supporting +0.6Mpa pressurization to the main inlet manifold. Main incoming 415V/50Hz power cables, external utility pipes, and connection conduits must be terminal-landed by the buyer's crew.

3. Foundation Engineering Pre-requisites: This vertical autoclave is designed for pit-mounting or partial floor-mounting. Wondery supplies comprehensive civil drawings beforehand. The buyer must handle the ground excavation, concrete reinforcement, anchor bolt casting, and provide necessary rigging equipment during delivery.

VI. FAQ

• Q: Are certified regulatory pressure vessel certificates provided with shipment?

  A: Absolutely. All pressure modules comply strictly with Steel Pressure Vessels GB150-1998 standards. Deliverables include the formal Welding Line Radiographic Examination Report, Main Pressurized Components Material List, Pressure Test Inspection Sheets, and the official Certificate of Pressure Vessel Product Safety Performance for smooth registration.

• Q: What are the commercial trade terms and timeline for this offer?

  A: The system is quoted at 60,800.00 USD on an EXW basis. The manufacturing cycle requires 60 working days after receiving the 40% down payment, with the 60% balance due via T/T prior to delivery. This offer remains strictly valid until July 1, 2026.