Wuxi Wondery Industry Equipment Co., Ltd

I. Industry Insight: Critical Demands for VPI Technology in Industrial High-Voltage Motors and Transformers During the manufacturing and remanufacturing of high-voltage motors, special explosion-proof motors, and large power transformers, the insulation treatment of windings is a critical process determining the equipment's dielectric lifespan, mechanical integrity, and thermal dissipation performance. Traditional atmospheric dipping processes often leave microscopic air gaps and voids deep within the multi-layer coils. Under high-voltage electric fields, these residual air pockets are highly susceptible to Partial Discharge (PD), which exponentially accelerates insulation breakdown. The Vacuum Pressure Impregnation (VPI) process represents the global benchmark for resolving this bottleneck. By extracting air and moisture under deep vacuum conditions, the insulation resin is introduced via dynamic differential pressure to fully submerge the workpieces. Subsequently, positive pressure (typically up to $+0.6text{ MPa}$) is applied, forcing the resin to densely penetrate every micro-crevice of the windings. This significantly optimizes dielectric performance and heavily fortifies the windings' resistance against moisture, mold, and mechanical shock. With specialized pressure vessel engineering certifications and comprehensive electro-fluidic control expertise, WONDERY successfully delivered an export-standard heavy-duty VPI system to POWER WAVES ELECTROMECHANICAL CONT. LLC, a prominent electromechanical contractor in the UAE, overcoming their technical limitations in large-scale motor insulation processing. The technical specifications and proposals for this project are referenced from the document named "260602VPI1500-2000 Semi-auto Vacuum Impregnation Equipment System.docx". II. Technical Solutions and Parameterized Evidence 1. 1.5m Vertical Heavy-Duty Impregnation Tank (VPI Tank) — Blending High Pressure with Hermetic Reliability To facilitate the vertical loading and unloading profiles of large high-voltage motor stators and transformers, WONDERY engineered a high-integrity vertical vessel: Core Dimensions & Material Science: The main chamber features an upgraded effective working volume of $Phi1500 times 3000text{ mm}$, allowing it to accommodate longer shafts or larger heavy-duty winding assemblies seamlessly. The vessel head is forged from 16MnR boiler plate, the shell is fabricated from pressure-vessel-specific Q345-R steel, and the heavy flanges utilize 16MnR forged components, conforming strictly to Steel Pressure Vessels GB150-1998 standards. Extreme Pressure & Safety Interlocking: The rated positive working pressure reaches $+0.6text{ MPa}$ (fully adjustable), using filtered dry air supplied by the user. The limit vacuum depth achieves an ultra-low $100text{ Pa}$. The vessel comes standard with over-pressure audio-visual alarms and mechanical pressure-relief safety valves, accompanied by certified radiographic and welding test certifications. Hydraulic Teeth-Misaligned Locking Assembly: The tank cover utilizes an advanced upper and lower teeth-misaligned flange locking mechanism. The entire opening, closing, and locking sequences are driven by a $12text{ MPa}$ heavy-duty hydraulic station paired with non-contact proximity switches. The primary seal features an air-filling type silicone rubber sealing ring, ensuring zero-leakage performance under harsh cyclical shifts between vacuum and positive pressure. 2. Large-Capacity Resin Storage & Dynamic Temperature Chilling Hub — Preserving Resin Longevity Insulation resins (such as epoxies or polyesters) are highly temperature-sensitive and require constant low-temperature agitation when idle to prevent premature exothermic polymerization. WONDERY configured a smart storage system to manage this: Homogeneous Agitation Tank: The resin storage system is expanded to a $Phi1800 times 2000text{ mm}$ tank to efficiently match the material turnover of the deeper main chamber. It incorporates a multi-layer paddle agitator driven by an industrial motor-gearbox assembly, maintaining a precise speed range of $25 sim 36text{ rpm}$ to eliminate dead zones and ensure uniform resin viscosity. 100mm Thermal Barrier Jacket: The vessel exterior is heavily wrapped in a $100text{ mm}$ high-density insulation layer protected by stainless steel armor. The inner vessel incorporates a cooling jacket integrated with digital temperature transmitters for constant temperature tracking. Industrial Chilling Machinery: The system is paired with a $15text{ HP}$ ($415text{ V}$) high-capacity chiller delivering a cooling output of $50,000text{ W/H}$ and a chilled water flow rate of $8text{ m}^3text{/H}$. Operating on an aqueous glycol solution, the chiller automatically runs parallel to process requirements, locking the resin within its safe, low-temperature liquid threshold. 3. Upgraded Dual-Stage Vacuum Package & Industrial-Grade Safety Interlocks Dual-Stage Vacuum Array: The system incorporates a primary 2X-70 rotary vane vacuum pump backed by a larger-displacement ZJ-300 Roots blower, achieving a peak pumping speed of $300text{ L/S}$ to rapidly evacuate the 3000mm deep chamber down to target negative pressure. A heavy-duty vacuum buffer tank is positioned upstream of the pumps to effectively capture vaporized resin mist, protecting internal pump components. European Standard Electrical Architecture: The centralized power and control console operates on a localized $text{AC}415text{ V} / 50text{ Hz}$ three-phase four-wire grid, featuring premium Schneider low-voltage switchgear components. Fail-safe logic is hardwired into the system: the hydraulic mechanism is automatically isolated if the locking teeth are improperly positioned, and the main cover remains mechanically locked until all internal pressure is entirely vented, preventing human error. III. International Compliance, Delivery, and Warranty Engineering The VPI system has been successfully disassembled into modules, securely anchored onto specialized Flat Rack containers with export-grade protective wrapping, and delivered to the client's facility in the UAE. WONDERY provides a comprehensive technical documentation package including foundation layouts, weld radiographic reports, complete English operational schematics, and an extended 13-month product warranty from the date of shipment, ensuring dependable operation for regional engineering projects.

I. Industry Insight: Critical Demands for VPI Technology in Industrial High-Voltage Motors and Transformers      During the manufacturing and remanufacturing of high-voltage motors, special explosion-proof motors, and large power transformers, the insulation treatment of windings is a critical process determining the equipment's dielectric lifespan, mechanical integrity, and thermal dissipation performance. Traditional atmospheric dipping processes often leave microscopic air gaps and voids deep within the multi-layer coils. Under high-voltage electric fields, these residual air pockets are highly susceptible to Partial Discharge (PD), which exponentially accelerates insulation breakdown. The Vacuum Pressure Impregnation (VPI) process represents the global benchmark for resolving this bottleneck. By extracting air and moisture under deep vacuum conditions, the insulation resin is introduced via dynamic differential pressure to fully submerge the workpieces. Subsequently, positive pressure (typically up to $+0.6text{ MPa}$) is applied, forcing the resin to densely penetrate every micro-crevice of the windings. This significantly optimizes dielectric performance and heavily fortifies the windings' resistance against moisture, mold, and mechanical shock. With specialized pressure vessel engineering certifications and comprehensive electro-fluidic control expertise, WONDERY successfully delivered an export-standard heavy-duty VPI system to POWER WAVES ELECTROMECHANICAL CONT. LLC, a prominent electromechanical contractor in the UAE, overcoming their technical limitations in large-scale motor insulation processing. II. Technical Solutions and Parameterized Evidence 1. 1.5m Vertical Heavy-Duty Impregnation Tank (VPI Tank) — Blending High Pressure with Hermetic Reliability To facilitate the vertical loading and unloading profiles of large high-voltage motor stators and transformers, WONDERY engineered a high-integrity vertical vessel: Core Dimensions & Material Science: The main chamber features an effective working volume of $Phi1500 times 2000text{ mm}$. The vessel head is forged from 16MnR boiler plate, the shell is fabricated from pressure-vessel-specific Q345-R steel, and the heavy flanges utilize 16MnR forged components, conforming strictly to Steel Pressure Vessels GB150-1998 standards. Extreme Pressure & Safety Interlocking: The rated positive working pressure reaches $+0.6text{ MPa}$ (fully adjustable), using filtered dry air supplied by the user. The limit vacuum depth achieves an ultra-low $100text{ Pa}$. The vessel comes standard with over-pressure audio-visual alarms and mechanical pressure-relief safety valves, accompanied by certified radiographic and welding test certifications. Hydraulic Teeth-Misaligned Locking Assembly: The tank cover utilizes a advanced upper and lower teeth-misaligned flange locking mechanism. The entire opening, closing, and locking sequences are driven by a $12text{ MPa}$ heavy-duty hydraulic station paired with non-contact proximity switches. The primary seal features an air-filling type silicone rubber sealing ring, ensuring zero-leakage performance under harsh cyclical shifts between vacuum and positive pressure. 2. Intelligent Resin Storage & Dynamic Temperature Chilling Hub — Preserving Resin Longevity Insulation resins (such as epoxies or polyesters) are highly temperature-sensitive and require constant low-temperature agitation when idle to prevent premature exothermic polymerization. WONDERY configured a smart storage system to manage this: Homogeneous Agitation Tank: The resin storage system features a $Phi1600 times 1600text{ mm}$ tank. It incorporates a multi-layer paddle agitator driven by an industrial motor-gearbox assembly, maintaining a precise speed range of $25 sim 36text{ rpm}$ to eliminate dead zones and ensure uniform resin viscosity. 100mm Thermal Barrier Jacket: The vessel exterior is heavily wrapped in a $100text{ mm}$ high-density insulation layer protected by stainless steel armor. The inner vessel incorporates a cooling jacket integrated with digital temperature transmitters for constant temperature tracking. Industrial Chilling Machinery: The system is paired with a $15text{ HP}$ ($415text{ V}$) high-capacity chiller delivering a cooling output of $50,000text{ W/H}$ and a chilled water flow rate of $8text{ m}^3text{/H}$. Operating on an aqueous glycol solution, the chiller automatically runs parallel to process requirements, locking the resin within its safe, low-temperature liquid threshold. 3. Two-Stage High-Speed Vacuum Package & Industrial-Grade Safety Interlocks Dual-Stage Vacuum Array: The system incorporates a primary 2X-70 rotary vane vacuum pump backed by a high-capacity ZJ-150 Roots blower, achieving a peak pumping speed of $300text{ L/S}$. A heavy-duty vacuum buffer tank is positioned upstream of the pumps to effectively capture vaporized resin mist, protecting internal pump components. European Standard Electrical Architecture: The centralized power and control console operates on a localized $text{AC}415text{ V} / 50text{ Hz}$ three-phase four-wire grid, featuring premium Schneider low-voltage switchgear components. Fail-safe logic is hardwired into the system: the hydraulic mechanism is automatically isolated if the locking teeth are improperly positioned, and the main cover remains mechanically locked until all internal pressure is entirely vented, preventing human error.

Aperçu de l'industrie : exigences strictes en matière de précision des matériaux dans les échanges thermiques et la fabrication Dans la fabrication industrielle moderne, les systèmes d'échange thermique automobiles (tels que les condenseurs et les évaporateurs) et le traitement électronique de précision des tubes, les tolérances de composition chimique, la précision des dimensions physiques et l'intégrité du revêtement des bandes et feuilles en alliage d'aluminium déterminent le taux de rendement de l'emboutissage, du formage et du brasage ultérieurs. Les qualités commerciales standard ne parviennent souvent pas à répondre simultanément aux exigences de haute résistance, d'anticorrosion et de brasage spécifiques. WONDERY répond à ces besoins critiques grâce à des technologies spécialisées de laminage et de revêtement multicouche au niveau micronique. Solutions techniques et preuves paramétrées 1. Bandes en alliage d'aluminium 3003 de qualité supérieure (bobine d'aluminium) Pour équilibrer résistance à la traction et ductilité lors de l'emboutissage continu, WONDERY a mis en œuvre un contrôle strict de la structure des grains pour l'alliage 3003 : Laminage multi-spécifications : Ce projet impliquait la livraison simultanée de deux largeurs distinctes de bobines robustes sous la même qualité (alliage d'aluminium 3003). Les spécifications sont : Épaisseur 1,5 mm / Largeur 38 mm (ID : 500 mm) et Épaisseur 1,5 mm / Largeur 16 mm (ID : 500 mm), avec 15 rouleaux (~ 1 200 kg au total) livrés pour chaque spécification. Cohérence de la qualité : l'enroulement de précision garantit des bords sans bavures et des tolérances d'épaisseur au niveau du micron tout au long de centaines de mètres de déroulement, évitant ainsi la rupture de la bande ou l'usure prématurée de la matrice lors de l'estampage à grande vitesse. 2. Feuille d'aluminium plaquée à trois couches Advanced 4343/3003/4343 (bande d'aluminium) Le principal défi dans la fabrication d’ailettes et de tubes d’échangeurs de chaleur réside dans les performances de brasage. WONDERY a résolu ce problème en fournissant des matériaux sandwich plaqués hautes performances : Composition structurelle : comporte une structure composite multicouche en alliage d'aluminium 4343/3003/4343 d'une épaisseur de seulement 0,1 mm et d'une largeur de 16 mm (ID : 200 mm). Au total, 25 rouleaux (~1 000 kg) ont été livrés. Optimisation du processus de brasage : la couche centrale (3003) offre une excellente résistance structurelle et résistance à la corrosion, tandis que les couches de revêtement externes (4343) agissent comme des métaux d'apport à bas point de fusion. Lors du brasage sous atmosphère contrôlée (CAB) ou sous vide, les couches externes fondent pour former des joints sans soudure tandis que le noyau reste intact, éliminant ainsi les risques de joints froids ou de fuites. Intégrité de la liaison : grâce à une liaison avancée par laminage à chaud, une fusion d'interface au niveau moléculaire est obtenue, empêchant tout délaminage lors d'une réduction ultérieure jusqu'à 0,1 mm. 3. Feuille d'aluminium pour radiateur ultra-mince de 0,08 mm Traitement ultra fin : pour la fabrication d'ailettes de refroidissement à haute efficacité, WONDERY a livré une feuille en alliage d'aluminium 3003 avec une spécification ultra fine de 0,08 mm d'épaisseur et 44 mm de largeur (ID : 200 mm), totalisant 25 rouleaux (~ 1 000 kg). Emballage et protection : étant donné que la feuille de 0,08 mm est très susceptible de se froisser et d'être endommagée, une méthode d'emballage en rouleau standardisée, résistante à l'humidité et aux chocs, a été adoptée, limitant le poids unitaire à env. 40 kg/rouleau pour garantir des bords parfaits et zéro oxydation à l'arrivée. Spécifications de livraison et conditions commerciales WONDERY adhère strictement aux protocoles d'exécution du commerce international pour garantir une réalisation transparente et transparente de la chaîne d'approvisionnement : Conditions commerciales : FOB Shanghai, facilitant des arrangements logistiques flexibles pour les acheteurs mondiaux. Délai de livraison : Le laminage de précision à grande échelle, le refendage, l'inspection de qualité et l'emballage ont été finalisés dans les 30 jours suivant la réception du dépôt. Stratégie d'expédition : expédié via une expédition centralisée (expédition partielle non autorisée) pour garantir que l'ensemble du lot arrive simultanément, en maintenant l'homogénéité des matières premières pour la ligne de production du client.