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KWS EB 8: 5 Flask Flanged Investment Mixing Machine

SKU:76-3002

KWS EB8 - 5 Flask Flanged Investment Mixing Machine. This KWS investment mixing machine can mix up to 10 kg of investment powder and is also suitable for smaller output capacity (designer studios).



  • American Express
  • Apple Pay
  • Bancontact
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • Shop Pay
  • Visa




Model EB5 EB8 EB10/16S EB-10/16 EB 20/30
SKU 76-3001A 76-3002 76-3005 76-3003 76-3006
Max Flasks 3 flanged flasks, 120 to 140 mm max diameter 5 flanged flasks, 140 mm max diameter each 6 flanged flasks, 140 mm max diameter 6 flanged flasks, 140 mm max diameter 8 flasks
Max Flask Height 228.6 mm / 9 in 230 mm / 9 in 270 mm / 10.8 in
Flask Chamber 290 mm diameter 380 mm diameter 430 mm diameter 610 mm diameter
Max Powder Capacity 6 kg 10 kg 16 kg 30 kg
Mixing Chamber Diameter 200 mm 280 mm 330 mm 610 mm 460 mm
Mixing Chamber Height 315 mm inside height 315 mm inside height 575 mm inside height 330 mm inside height 590 mm inside height
Power 220 V, 3 phase, 60 cycle
Machine Dimensions 730 x 490 x 970 mm 1015 x 550 x 1405 mm 1130 x 640 x 1600 mm 1140 x 640 x 1720 mm 1340 x 840 x 1710 mm
Weight 72 kg uncrated / 120 kg crated 147 kg / 0025 pump, 215 kg / 0040 pump, 226 kg / 0025 pump crated, 223 kg / 0040 pump crated 189 kg uncrated / 283 kg crated 211 kg uncrated / 325 kg crated 292 kg / 453 kg shipping
Form Factor Tabletop Unit Floor Unit
Construction / Features Stainless steel and aluminum construction
Application Investment Mixing

Romanoff KWS EB5: 10 kg Precision Vacuum Investing System

The Romanoff KWS EB5 is a high-performance investment mixing machine designed for jewelry manufacturers who require industrial-grade precision in a versatile tabletop footprint. Specifically engineered to mix up to 10 kg of investment powder, the EB5 is the ideal solution for designer studios and smaller production lines that refuse to compromise on quality. By integrating vacuum mixing and pouring into a single automated cycle, this system ensures every flask is prepared with exceptional surface quality and sharp contour definition.

Key Performance Features

Achieve flawless results with a minimum amount of manual labor through a synchronized vacuum and vibration process.

  • 5-Flask Simultaneous Fill: Engineered to hold and fill up to 5 flanged flasks at a time for efficient batch processing.
  • Vacuum Mixing Technology: Both mixing and filling occur under a full vacuum to eliminate air bubbles and ensure the structural integrity of your molds.
  • Variable Speed Control: The drive motor allows for precise rotational speed selection, ensuring the perfect consistency for any investment slurry.
  • Adaptable Vessel Design: For specialized production, the flask vessel can be modified to accommodate higher flasks (external vacuum pump required for modified setups).

Industrial Durability

Constructed with premium materials to resist the corrosive effects of gypsum and water in a daily production environment.

  • Complete Corrosion Protection: All critical parts are manufactured from stainless steel or aluminum (Al), ensuring minimum wear and tear over years of use.
  • Advanced Pump Protection: An integrated filter system protects the vacuum pump from particulates, substantially extending its industrial life cycle.
  • Special Alloy Taps: Filling taps are crafted from a proprietary alloy specifically designed to resist damage from water and gypsum.
  • Fast Gasket Servicing: Corrosive-resistant gaskets typically last 2 to 3 years and can be replaced by loosening just two screws—no machine dismantling required.

Technical Process & Operation

The Romanoff KWS EB5 provides a clean and pleasant working environment with a simple, intuitive workflow. To operate, place up to 5 flanged flasks in the mixer and swivel the stirring unit into position. Load the measured water and weighed investment into the container and seal with the transparent Plexiglass lid for full process surveillance. Once the material is mixed under vacuum, open the filling taps to fill the flasks while simultaneous vibration ensures a perfect, high-density finish. Post-production cleaning is effortless: simply swivel the mixer over the drain bowl and rinse using the integrated spray nozzle.

Max Capacity: 10 kg
Flask Capacity: 5 Flanged Flasks
Voltage: 220/60/3
Material: Stainless Steel & Aluminum

Romanoff Quality: The EB5 series is the professional standard for consistent, high-detail jewelry casting. Includes full technical support and training options.

  • Max Flasks: 5 Flanged Flasks with Maximum Diameter of 140 mm each
  • Max Height of Flasks: 230mm / 9"
  • Flask Chamber: 380mm Diameter
  • Max Powder Capacity: 10kg
  • Mixing Chamber Diameter: 280mm
  • Height of Mixing Chamber: 315mm (Inside Height)
  • Machine Dimensions: 1015 x 550 x 1405mm
  • Weight : 147kg / 0025 Pump, 215 kg / 0040 Pump / 226kg / 0025 Pump, 223 kg / 0040 Pump (Crated)