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VBD-150

The Maguire VBD-150:
Dry Up to 150 lb./hr in 1/6 the Time with Half the Energy

That's right... Maguire Vacuum Dryers are proven to dry all types of polymers in a fraction of the time and with up to 85% less energy than desiccant dryers.

..and leave it to Maguire to improve on a great thing:

  • Improved design obsoletes moving canisters and minimizes moving parts.
  • Continuous batch drying process.
  • -40 dew point air is constantly bled into vacuum and retention hoppers.
  • Vertical design minimizes footprint.
  • No heat loss is guaranteed with double-insulation on all vessels.
  • Reduced Maintenance - no desiccant to change - no filters to clean.
  • Faster drying improves production planning.
  • "No stress" material drying - means no material degradation.
  • Process temperatures up to 350F. (175C)
  • Vacuum take-off or gravity feed material discharge available.
  • Backed by same 5-year warranty as all Maguire products.

How the VBD-150 Dryer Works:

VBD Vacuum Dryers utilize a 3-stage continuous batch drying process

Support

Documentation

Videos

Contact

Tel: 610-459-4300
Fax: 610-459-2700
Email: support@maguire.com

Stage 1:

Material in the heating hopper is brought to set point by means of a centrifugal blower through a heating element. The requested heating temperature is adjusted on the control panel.

Stage 2:

Upon reaching the desired set point, heated material is discharged from the heating hopper into the vacuum vessel. The vacuum is brought to 700mm Hg and held to a 20mm Hg differential for the set cycle time. The vacuum cycle typically lasts about 15 - 20 minutes so you have ready-to-process material in 30 - 40 minutes.

Stage 3:

The dried material is discharged into an insulated retention / take-off hopper for consumption. A positive pressure heated dry air purge is maintained on the material.

VBD Controller

Simple is better - no confusing icons - only two screens to monitor

The controller is a Motorola micro-processor

  • Four buttons provide access for setting operation mode, adjusting dryer parameters and many additional program functions.
  • Alarms are shown on the display and signaled by an alarm light and horn with silence function.
  • Reports can be generated via a USB port to either a memory stick or printer.
  • Program updates via flash memory using a standard USB memory device.

Vacuum Generator:
Maintains vacuum at 70mm
Hg 20mm Hg to ensure
that moisture is drawn out
of the polymer. (Location
back side of the enclosure).




Heating Hopper: Insulated
stainless steel hopper for
drying temperatures up to
350F (175C).

Alarm Light

Insulated Vacuum Vessel
with cleanout port.





Coalescing Filters:
Removes moisture from
compressed air supply

Dry Air Membrane:
Provides dry air
purge for vacuum
vessel and dry
air blanket of the
retention hopper.

Insulated Retention Hopper for
dried material.




Material takeoff

Energy usage comparison with dual-desiccant bed dryer
Dual Bed Dryer vs. Maguire VBD-1000 Vacuum Dryer

Drying 1000 lb/hr (454 kg/hour) of nylon at 170F ( 77C):
- Electrical consumption only
- Compressed air generation electrical requirement for 9.8 SCFM
TOTAL True Energy Consumption @ 170F (77C)
Dual Bed
watts/Kg/hr
81.8

81.8
VBD
watts/Kg/hr
30.8
8.1
38.9
VBD ENERGY SAVINGS 53%
Drying 1000 lb/hr (454 kg/hour) of Polycarbonate at 250F ( 121C):
Dual Bed VBD
Total True Energy Consumption @ 250F (121C) 120.3 53.4
VBD ENERGY SAVINGS 56%
Note: "compressed air generation electrical requirement" is the amount
of electrical energy required to make the amount of compressed air that
the unit consumes. It is based on 4 SCFM requiring 1.0 HP, and 1.0 HP
being 746 watts of power.
Model VBD-150
U.S. Metric
Maximum Throughput up to 150 lb./hr. up to 68 Kg
Heating Hopper Volume 2 ft (average 76 lbs) 56 L (average. 35 Kg )
Vacuum Chamber Volume 1 ft (average 38 lbs) 28 L (average 17.3 Kg)
Retention Hopper Volume 1.3 ft (average 50 lbs) 37 L (average 22.5 Kg)
Max. Temperature 370F 185C
Power Supply 480V/3ph/60Hz
20 amp service
400V/3ph/50Hz
20 amp service
Process Heater 6 KW 6 KW
Blower 1.1 HP, 105 scfm .82 KW, 2973 L/min
Compressed Air Pressure 85 psi 5.8 bar
Compressed Air Usage 12.5 ft3/hr. 354 L/hr
Product Weight 501 lb. 228 Kg