Ouli-Wolong MVE-D Explosion-Proof Vibrating Motor

Manufacturer: Shaoxing OLI-Wolong Vibration Machinery Co., Ltd. (OLI-WOLONG) is a joint venture established by Wolong Electric Group Co., Ltd. (Stock Code 600580) and Italy's WAM Group OLI Company. It fully imports Italian technology and processes to professionally produce level indicators, vibration motors, and vibration rods. OLI operates 19 sales subsidiaries, 36 warehouses, and 7 manufacturing plants worldwide. Approximately 50% of its products are exported to Europe, the United States, and other regions. As one of the world's leading manufacturers of vibration motors and pneumatic vibrators, OLI's three main product lines include industrial vibrators, flow aids, and concrete consolidation equipment. Product Line Positioning: The MVE-D explosion-proof series features flameproof vibration motors with an explosion protection rating of Ex d IIB T4 Gb. Available in four speed configurations for 2 poles (3000rpm), 4 poles (1500rpm), 6 poles (1000rpm), and 8 poles (750rpm). Excitation force ranges from 2 to 199 kN, with output power from 0.12 to 12 kW. Frame sizes include SIZE50D, SIZE60D, SIZE60D-A1, SIZE70D, SIZE75D, SIZE80D, SIZE85D, SIZE90D, and SIZE105D. Power supply options are three-phase 220V~460V at 50Hz or 60Hz. Cable glands are NPT3/4 or M32X1.5. Suitable for hazardous locations such as oil & gas, chemical processing, mining, and grain processing where flammable gases may be present. Design & Engineering: Features a robust frame designed using FEM finite element analysis, vacuum impregnation process, FMEA analysis, and 3D quality inspection. Insulation class F, protection rating IP66, continuous duty S1. Equipped with built-in PTC thermistors (130°C), special grease retention devices, and heat-resistant (tropicalized) treatment. Delivers an excellent power-to-weight ratio and optimized electrical design. Bearings & Lubrication: Low-power models use dedicated ball bearings pre-lubricated with specialized grease at the factory; no maintenance required. High-power models use dedicated cylindrical roller bearings pre-filled with sufficient grease. Do not add grease to new motors before installation. Excitation Force Adjustment: Eccentric weights are easily adjustable. Models available in Type A, Type B, and Type C. Type C utilizes plate-type eccentric weights with combinations of 5+5, 8+8, 9+9, and 12+12 plates. Flipping up one plate on each side reduces excitation force by approximately 40%, 25%, 22.2%, and 16.7% respectively. Installation Requirements: The mounting surface must be flat with a flatness tolerance below 0.25mm to prevent internal stress and potential foot fracture during bolt tightening. Use high-strength bolts rated at least 8.8, nuts rated 8, and flat washers matching the hole diameter. Tighten bolts to the specified torque values. Mounting surfaces must be machined; painting is prohibited. Electrical Connections: Verify voltage and frequency match the nameplate. Ensure power cables pass through cable glands with conductor cross-sections meeting specifications. Green-yellow grounding wires must be securely grounded. Before closing the terminal box cover, verify gasket positioning to maintain the protection rating. Overload Protection: All vibration motors require external overload protection devices. When two motors operate synchronously, each must have its own overload device connected in tandem; if one motor stops, the other must stop immediately. Certifications: Explosion protection rating Ex d IIB T4 Gb (additional certifications including CE, CCC, and EX are noted separately in the catalog).