Banbury Internal Batch Mixer

AFRL is seeking acquisition of a Banbury mixer or similar configuration with a volume capacity of 1.5-2.0 liters (4-5 pounds or 1800-2300 grams) to facilitate execution of its current R&D portfolio involving solid rocket motors. 

The minimum Government agency specifications for a suitable Banbury Internal Batch Mixer are as follows:
1) A rubber internal batch mixer capable of producing 1.5 - 2.0 liters per batch, in a Banbury type configuration or similar in terms of efficacy;
2) Ability to regulate mixing chamber temperature between 50 degrees and 250 degrees Fahrenheit;
3) Hydraulically operated discharge doors on front and back side of mixing chamber for ease of use/cleaning;
4) Hydraulically operated discharge door locks for safety;
5) Hydraulically operated dust stop assemblies to ensure effective sealing of the mixing chamber;
6) Safety controls to include manual reset, on both sides of the mixing chamber (front and rear);
7) Knee safety plates that cut power when pressed by operator for enhanced operational safety;
8) Discharge door safety mechanism that cuts power to mixer when doors are in the open position;
9) Safety controls that enable jogging of the mixer rotors when the discharge doors are in the open position; and
10) Touch screen control interface with capabilities to save temperature and torque process data and output that data to a computer.
11)  Power supply of 3 phase 480 V or 3 phase 208 V.
12)  If any cooling is required, capability for mixer to except cooling fluids from a recirculating chiller.