Products » Dryers » ULTRA-1000


ULTRA 1000
The first ULTRA Low Energy Dryer

Conventional desiccant dryers typically use 45 Watts/lb/hr (100 Watts/kg/hr) to DRY material. ULTRA uses just 4 Watts/lb/hr (8 Watts/kg/hr) to DRY. Switching from desiccant to ULTRA saves you 41 Watts/lb/hr (91 Watts/kg/hr). On a process running 220 lbs/hr (100 kg/hr) an ULTRA dryer can save you $6,494 annually doing the exact same job. Year on year.

..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 4" 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-1000






Materials Drying
Materials Drying FRENCH


Low Pressure Dryer


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

ULTRA-1000 installed on mezzanine


How the ULTRA-1000 Dryer Works:

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

Stage 1:

Material in the heating hopper is brought to set point by means of a centrifugal blower through a 40 Kw heating element. The requested heating temperature is adjusted on the control panel and the cycle lasts 45 minutes (60 minutes for PET).

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 75mm Hg absolute pressure and held to a 20mm Hg differential for the set cycle time. The vacuum cycle typically lasts for about 20 minutes so you have ready-to-process material in 65 - 80 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-1000



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).

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

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

Alarm Light

Variable Frequency Drive:
Used to optimize
blower speed.

Insulated Vacuum Vessel
with cleanout port.

10 Hp. High Efficiency
Centrifugal Blower.

Insulated Retention Hopper for
dried material.

Coalescing Filters:
Removes moisture from
compressed air supply

Mezzanine mount is
standard. (Optional
floor-mount sub-frame
assembly is shown with
2 fork lift pockets)
Energy usage comparison with dual-desiccant bed dryer
Dual Bed Dryer vs. Maguire ULTRA-1000 Vacuum 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-1000
  U.S. Metric
Maximum Throughput up to 1000 lb./hr. up to 455 Kg
Heating Hopper Volume 1200 lb. (26 ft3) 544 Kg (735 L)
Vacuum Vessel Volume 400 lb. (10.5 ft3) 180 Kg (297 L)
Retention Hopper Volume 400 lb. (10.5 ft3) 180 Kg (297 L)
Max. Temperature 370°F 185°C
Power Supply 480V/3ph/60Hz
100 A Service
100 A Service
Process Heater 40 KW 40 KW
Blower 10 HP, 600 scfm 7.5 KW, 16990 L/min
Compressed Air Pressure 80 psi 5.5 bar
Compressed Air Usage 168 ft3/hr. 4757 L/hr
Product Weight 2500 lb. 1135 Kg