Products » Dryers » ULTRA-150


The first ULTRA Low Energy Dryer

That's right... Maguire ULTRA Low Energy 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 350°F. (175°C)
  • Vacuum take-off or gravity feed material discharge available.
  • Backed by same 5-year warranty as all Maguire products.

Maguire ULTRA-150

How the ULTRA-150 Dryer Works:

ULTRA Low Energy Dryers utilize a 3-stage continuous batch drying process





Tel: 610-459-4300
Fax: 610-459-2700

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.

Maguire ULTRA-150

ULTRA 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
350°F (175°C).

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 ULTRA-1000 Low Energy Dryer

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

Drying 1000 lb/hr (454 kg/hour) of Polycarbonate at 250°F ( 121°C):
Dual Bed ULTRA
Total True Energy Consumption @ 250°F (121°C) 120.3 53.4
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 ULTRA-150
U.S. Metric
Maximum Throughput up to 150 lb./hr. up to 68 Kg
Heating Hopper Volume 2 ft3 (average 76 lbs) 56 L (average. 35 Kg )
Vacuum Chamber Volume 1 ft3 (average 38 lbs) 28 L (average 17.3 Kg)
Retention Hopper Volume 1.3 ft3 (average 50 lbs) 37 L (average 22.5 Kg)
Max. Temperature 370°F 185°C
Power Supply 480V/3ph/60Hz
20 amp service
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