
1.0 Introduction
With proper care and attention your Gruber Systems Mixer will provide maximum
performance and long service at minimum cost. We are sure that it will prove to be a
most valued asset to your Company.
Our interest in your equipment does not end with its sale. We are interested in
constantly maintaining contact with your Company. Should you have any questions or
problems, please contact us and we will be most eager to discuss these with you.
The purpose of this manual is to assist you in keeping your Vacuum Mixer in the
best possible operating and mechanical condition at all times. It is our endeavor to
manufacture the finest equipment available to the Cast Polyester Industry.
1.1 Application
The Gruber 1350 Blender is a mixing machined designed for the purpose of thoroughly
blending the components for Marble and Onyx Matrix. In general these are granular
fillers (ATH or Calcium Carbonate), Polyester or Acrylic resins up to 1500 cps, and
associated processing aid or pigments.
The machine includes a 24 inch dia. stainless steel vessel, with a relatively flat bottom,
and a blade with mixing blade designed to create high agitation to minimize mixing cycle
times. Depending upon your particular mixture’s specific gravity, the machine will
process approximately 350 Lb. per batch.
The mixing vessel is rotated to create the mixing action. The 3 hp. electric motor is
connected to a gearbox and drives the pot through a special turntable. The machine is
designed to be rotated in a counterclockwise (from top) direction. CHECK TAT THE
ROTATION IS CORRECT. DO NOT EVER INTERFERE WITH THE MOVING
BUCKET DURING PROCESSING. The pot can be easily lifted off of the turntable with
suitable lifting apparatus.
The specially designed blade is held stationary by an air powered retractable boom. It is
on a twist lock attachment to the boom, and can easily be removed for cleaning. Air is
supplied to the boom mounted pneumatic control valve. It is a lever type valve and
moves the boom up and down.