The Foremost Hot Air Dryer is used to remove surface moisture from the application product by passing heated air through a volume of material contained in a hopper.
The dryer blower pulls ambient air through an intake filter and pushes it through the heater box and flexible hose to the air inlet on the hopper. The thermocouple from the console temperature control maintains a constant temperature at the hopper inlet.

The maximum design temperature of the DH-4 dryer is 325° F @ 550 CFM.

The heated air passes through an air diffuser cone in the bottom of the hopper and drives off surface moisture as it flows upwards through the resin. The moisture-laden air exits the hopper at the top and can either exhaust into the plant or be piped to a remote location.

Our patented twin tower desiccant dyers were specifically designed for drying hygroscopic materials such as plastic resins. Equipped with features such as separate blowers and filters for processing and regeneration circuits, digital process temperature control, switch selectable (Time/Dewpoint) cycle control, nonproprietary PLC based controls and a high temperature option of up to 400 degrees, our desiccant dryers offer the best dying technology available.

• Separate blowers and filters for processing and regeneration circuits.
• Digital process temperature control.
• Switch selectable (Time/Dewpoint) cycle control.
• Nonproprietary PLC based controls.
• High-temperature option of up to 400 degrees.

The first ULTRA Low Energy Dryer for plastics.

Ultra-low kW energy usage – fast ROI and savings for a lifetime.

• Drying costs so low, it’s almost free
• Energy efficient unique vacuum drying technology
• Faster drying, faster start-ups, minimal maintenance

ULTRA Energy – Efficiency Comparison

• kW energy to HEAT raw material from ambient to required drying temperature is the same for all drying processes.
• kW energy to DRY raw material is where the difference occurs, comparing ULTRA dryers to all Desiccant dryers.

ULTRA Low Energy – Operating Cost Savings

• A process running at 220lb/h (100kg/h) can typically see a kW difference of 41 Watts/lb (92 Watts/kg) with ULTRA dryers versus generic desiccant dryer.
• This saves $6,500 annually at an example rate of 220lb/h (100kg/h) – whilst doing the exact same job.
• ULTRA delivers savings year on year for its full life cycle.

ULTRA Low Energy – Dynamic Software

• Temperature Sense Control – temperature is controlled efficiently with energy saver as standard.
• Heater and air flow are automatically regulated to ensure only the required amount of heat and air flow are used to bring material up to temperature.

ULTRA Quick Drying

• ULTRA dryers place materials under vacuum to dry rapidly, versus long exposure to desiccant hot dry air flow.
• Normally, ULTRA dries material 6 times faster than conventional desiccant dryers.
• ULTRA fast drying time provides quicker start-ups.

ULTRA Low Energy Components

• No regeneration process, no added energy used.
• ULTRA uses only one smaller blower and heater sized for smaller volumes and faster drying times.
• Compact heating hopper – less material in process, less energy used, easier cleaning.
• Minimal maintenance – no scheduled maintenance requirements and no consumables.

ULTRA Live Throughput Monitoring

• Load cells monitor the vacuum chamber and retention hopper and provide live materials usage data.
• Data allows the drying rate to efficiently follow and adjust according to the dryer consumption rate.
• ULTRA live data makes for ULTRA efficient drying.

ULTRA Fast Return on Investment 

• ULTRA dryers quickly pay-back in the short term and continue to provide energy reduction cost savings in the long term.
• Energy usage – one Desiccant day = one ULTRA week.
• Indirect benefits – increased productivity, reduced start-up scrap rates and reduced energy usage for the same time period.

Low Energy LPD dryers, first generation of Maguire vacuum drying technology.

• For 30, 100 and 200 lb/hr (14, 45, 90 kg/hr) throughputs
• Energy efficient vacuum drying method
• Suitable for small lb/hr (kg/hr) technical drying

Energy Efficiency

• Energy to HEAT material from ambient temperature to target drying temperature is the same for all drying processes.
• Energy to DRY material is where the differences occur when comparing a Maguire LPD dryer to all types of Desiccant dryers.
• Side-by-side testing of the vacuum dryer and a desiccant dryer shows 70 – 80% reduced energy consumption.

Energy Saver Modes Built in as Standard

• Temperature Sense Control: Temperature is controlled efficiently with energy saver modes built in as standard.
• Heater and blower are automatically regulated to ensure that only the required amount of heat and air flow are used to bring material up to temperature.

Speed of Drying

• LPD dryers use vacuum as the main method to dry versus air desiccant.
• Typically, vacuum dryers dry 6 times faster than conventional desiccant dryers.
• This dramatically reduces energy used to dry material and translates to more production time.

Low Energy Components

• No regeneration process, no added energy used.
• Compared to Desiccant dryers, LPD dryers use only one smaller blower and heater sized based on smaller volumes and energy efficiency.
• Low maintenance: no scheduled maintenance requirements and no consumables.

Fast ROI

• LPD dryers quickly payback in the short term and continue to payback through energy reduction in the long term.
• Energy usage – one Desiccant day = one LPD week.
• Indirect benefits – increased productivity, reduced start-up scrap rates and reduced energy usage for the same time period.