Laboratory Mixers & Blenders

Ribbon/Paddle Blenders Overview

Ribbon Blenders consist of a U-shaped horizontal trough and a specially fabricated ribbon agitator. A ribbon agitator consists of a set of inner and outer helical agitators. The outer ribbon moves materials in one direction and the inner ribbon moves the materials in the opposite direction. The ribbons rotate at approx. 300 fpm moves materials both radially and laterally to insure thorough blends in short cycle times. Ribbon agitators are used for blends that will be between 40 and 100% of the rated capacity of the blender.

An alternate agitator is our paddle design. The paddles are positioned to move materials in opposing lateral directions and radially. The paddle design is normally applied where friable materials are being blended and when batches as small as 15% of the total capacity are going to be mixed in one blender.

Ribbon and Paddle designs are available in working capacities to over 515 cu.ft. and in either center or end discharge designs.

Ribbon/Paddle Blenders Photos

1 Cu Ft Ribbon Blender This standard 1 cu ft stainless steel model is designed for atmospheric operation. The blender is mounted on legs and includes a dust tight cover and a manual flush type plug discharge valve.

5 Cu Ft Sanitary Ribbon Blender A special 5 cu ft sanitary blender designed for vacuum/pressure operation. Included are numerous charging openings, a light in the cover and a side mounted sight port.

Vertical Blenders Overview

Vertical Blenders are an excellent design alternative for applications that are shear sensitive or where space on the plant floor is at a minimum.

The gentle blending action of the slow turning blending screw is far gentler than that of a horizontal blender. The blending screw orbits the conical vessel wall while it turns and gently lifts material upward. The materials are then thrust at the upper most batch level towards the center of the vessel, and then move slowly back down the center, while mixing with materials being moved upward by the orbiting screw.

When compared to horizontal blenders this design has several advantages:
1. Gentle blending action is ideal for friable or shear sensitive materials.
2. One blender can be used for a wide range of batch sizes, ranging from as small as 10% of the rated capacity.
3. Nearly 100% of the blended materials are discharged through the bottom valve after completion of the blend cycle.
4. Use nearly 50% less power per unit being blended.
5. Less floor-space and are ideally suited to multi-story facilities.

Vertical Blender Photos

1 Cu Ft Vertical Blender The 1 cu ft Vertical Blender includes a built in lift to enable complete cleaning and inspection of the product. Vacuum design, jacketing for heating/cooling and varible speed drives are all standard..

Close up open view of screw in 1 cu ft model

Dryer Overview

Complete Horizontal or Vertical vacuum drying systems are available to meet the needs of each application. The systems typically include a mixer/blender, filter, condenser, vacuum pump and condensate receiving vessel. Complete skid mounted systems are available with controls.