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Presentation

The 794 Series auger valve system isdesigned to

make precise, repeatable deposits of solder paste.
By integrating screw feed technology with  precise

control of dispense time, syringepressure and

auger speed, the 794 Series system ensures

consistent deposits withoutdamage to the metal

alloy particles in the solder paste.

The 794 Series auger valves are designed for use

with the 7094BL  and 7094DC controllers or XYZ

 dispensing robots like the JANOME  automation

 system. During operation,air pressure applied to

 the syringe of  solder moves paste into the path of
the auger. As the auger rotates, solder paste moves

 along the threads and out the dispensing tip.
The 7094BL and 7094DC controllers  regulate feed

pressure so that thereis enough pressure to keep

the valveprimed with solder without forcing it
past the auger, and controls dispense  time and

auger speed.

Specifications

◆ Size: 237.4 mm x 31.7 mm diameter
             (9.35" length x 1.25")
◆ Weight: 544 grams (19.2 oz)
◆ Fluid chamber: Type 440C hardened stainless
    steel
◆ Auger: Type 440C hardened stainless steel
   “U” cup: Filled PTFE, spring energized
◆ Liquid feed fitting: Type 304SS #10-32x5/32"
    (push-in optional: polypro)
◆ Auger speed: 250-400 RPM based on voltage
    input
◆ Auger pitch: 8 and 16 pitch auger
◆ Input Voltage: 12-24 VDC (<10% ripple)
◆ Input Air: 0-30 psi (0-2.07 bar) clean and dry
◆ Maximum Acceleration: 2g

All stainless steel parts are passivated.

Assistant Fixture

ValveMate 7094 Controller               JANOME XYZ Dispensing System              Dispense Tips

The ValveMate 7094 controller regulates solder feed pressure, dispense time and auger speed. It provides motor startup acceleration limits and maximum current overload protection for extended motor life. The precision air pressure regulator ensures that consistent pressure is applied to the material in the syringe barrel. • Easy deposit size control • On-the-fly adjustability • Motor voltage range of 10-24 VDC • Digital time, pressure, voltage display • Motor overload/fault detection  The JANOME XYZ dispensing system incorporates all functions of the ValveMate 7094. Compact 3- or 4-axis tabletop system offers consistent deposit repeatability.   Tip selection is critical to achieve optimum valve performance. In general, use the shortest and least restrictive tip possible to provide the best paste flow.794 Series valves are packaged with an Ultra dispensing tip kit for maximum fluid control. The kit includes smooth-flow tapered tips in sizes from 14 to 22 gauge and 6.35 mm(1/4")precision stainless steel tips in sizes from 14 to 30 gauge, and tip caps.