The Tomoe Engineering ROTOR Assembly include GB Assembly (Decanter Centrifuge Complete Rotating Assembly with Integrated Gearbox) is the flagship, core mechanical powerhouse engineered, assembled, and factory-tested directly by Tomoe Engineering Co., Ltd. (Japan). Designed as an authentic all-in-one OEM replacement package, this complete rotating assembly allows industrial plant operators to execute major overhauls or urgent emergency turnaround replacements in a streamlined "Plug-and-Play" manner, dramatically minimizing production downtime and fully restoring original separation efficiency, cake dewatering performance, and mechanical reliability.

The comprehensive ROTOR Assembly include GB Assembly integrates all four essential high-precision mechanical subsystems:
1. Centrifugal Bowl Assembly (BOWL Assembly): Centrifugally cast from high-grade Austenitic SUS316L Stainless Steel or Duplex Stainless Steel (SUS329J4L / SAF 2205), encompassing the cylindrical clarification section, conical dewatering beach, liquid/solids bowl heads, and adjustable liquid overflow weir plates.
2. Internal Scroll Conveyor Assembly (CONVEYOR Assembly): Central acceleration hub with continuous helical flights, fully armored along its peripheral flight edges with sintered Tungsten Carbide wear tiles for extreme abrasion resistance.
3. High-Torque Planetary Differential Gearbox (GEARBOX Assembly - GB Assembly): Precision-coupled directly to the bowl and scroll conveyor to govern precise differential rotation speeds, ensuring consistent and powerful solids cake conveyance and mechanical dewatering under heavy hydrodynamic loads.
4. Main Bearing Hubs & Pillow Block Housings: Fitted with precision Japanese high-speed self-aligning bearings and industrial-grade seals preventing vapor, toxic gas, and odor leakage.

A hallmark of this Tomoe complete rotating assembly is the factory multi-stage dynamic balancing procedure. Beyond individual balancing of the bowl and conveyor, the entire integrated rotor—complete with its GB Assembly gearbox and bearing hubs—undergoes rigorous two-plane dynamic precision balancing in strict compliance with ISO 1940 Quality Grade G1.0/G2.5 at actual operational speeds. This eliminates dynamic eccentricity, alleviates structural stress on supporting bearings and gear drives, and guarantees smooth, continuous 24/7 industrial performance under high centrifugal separation forces exceeding 3,000 G.

• Manufacturer: Tomoe Engineering Co., Ltd. (Japan)
• Product Category: Decanter Centrifuge Complete Rotor Assemblies & Spare Parts
• Model: ROTOR Assembly include GB Assembly
• Equipment Compatibility: Tomoe Engineering Industrial Decanter Centrifuges (TRM Series, TA Series, etc.)
• Operational Function: Complete integrated centrifugal separation, slurry acceleration, solids cake conveyance, and differential drive unit
• Complete Assembly Breakdown:
  - Centrifugally Cast Rotating Bowl Assembly (BOWL Assembly) in SUS316L / Duplex Stainless Steel
  - Sintered Tungsten Carbide Tiled Scroll Conveyor Assembly (CONVEYOR Assembly)
  - High-Torque Precision Planetary Differential Gearbox Assembly (GEARBOX Assembly - GB Assembly)
  - Main High-Speed Bearing Pillow Blocks, Hubs, and Journal Shafts
  - Precision Adjustable Liquid Weir Plate Assembly and Hermetic Vapor Seals
• Nominal Designed Operating Speed: 3,000 – 4,200 RPM (model-dependent)
• Centrifugal Separation G-Force: Up to 3,000 – 3,600 G
• Overall Dynamic Balancing Grade: ISO 1940 Quality Grade G1.0 / G2.5 (complete assembled unit dynamically balanced at factory)
• Wear Protection Architecture: Sintered Tungsten Carbide tiles on conveyor flights & ceramic/carbide bushings at cake discharge ports
• Differential Drive Type: Heavy-duty integrated Planetary Gearbox Drive
• Installation Method: Full modular assembly for rapid Plug-and-Play drop-in installation
• Quality & Manufacturing Standards: JIS Standard, ISO 9001, Factory Dynamic Balance Certificate (100% Made in Japan)