Quote Cart
Type: Dryer-Holoflite & Screw
Manufacturer: Joy Denver
Model: D-2420-6
Condition: Used
Material: Carbon Steel
Width: 1,676 mm (66 in)
Length: 6,096 mm (240 in)
Trough rated 80 psi @ 650 F. Double Screw design with 3" Johnson joints on shafts. Trough rated 80 psi @ 650 F. Double Screw design with 3" Johnson joints on shafts. Total heat transfer area is 571 Sq.Ft., screws are 445 Square foot surface area, jacket is 126 Sq.ft. surface area. Heat transfer medium is water. Heat transfer area for screws is rated for 264 gallon fluid volume, 158 gpm flow rate. Contact parts are carbon steel, flight thickness 5/16". Net Trough volume is 74 Cubic foot, rated 60" wc in the trough. Jacket rated for 92 gallons, 39 gpm flow, CS construction. Flat cover on trough. with a DC Drive controller. 20.7 minutes residence time. Originally used as a cooler. Feed rated 15,000 lbs/hr; Bulk density 70; Material Flow 2/4 CFH; Temperature 1560 degrees F, 0 % moisture. Discharge rated 15,000 lbs/hr; Bulk density 70; Material Flow 2/4 CFH; Temperature 550 degrees F, 0 % moisture. 197 gpm water used as heat exchange medium 95 degrees f inlet, 145 degrees discharge. Right hand drive as looking from rotary Joints.
Number of Screws: 4. Internal Pressure: 5.5 bar (80 psi). Internal Temperature: 343.3 °C (650 °F). Jacket Pressure: 2.1 bar (30 psi). Jacket Temperature: 343.3 °C (650 °F). Orientation: Horizontal. Heat Transfer Surface Area: 53 m² (571 ft²). Product Rate: 6,804 kg/h (15,000 lb/h). Height: 1,524 mm (60 in).
Type: Dryer-Holoflite & Screw
Manufacturer: Denver Equipment
Model: D-12-18-5
Condition: Used
Material: Stainless Steel 316L
Width: 304.8 mm (12 in)
Length: 5,486 mm (216 in)
Holo-Flight Dryer Total heat transfer area is 204 Sq.Ft., Screw heat transfer area is 148 Sq.Ft., jacket heating surface area is 56 Sq.Ft. Heat transfer medium is steam. rated for 250 psi steam service. 1/4" thick mixing flights with 12 mixing lugs per flight. 3 Ring shaft seals of 316 SS with Garlock food grade packing. Built with bolted ends for easy clean-out. Type A-36 CS jacket on trough with 30 psi working pressure. Two Duff Norton rotary joints for screws. Beier variator , and a Sumitomo gear reducer, all with Falk couplings. Holoflight speed 2.96 RPM (max) and 0.74 rpm (min). Design criteria 2150 lb/hr feed rate, with a 2000 lb/hr discharge rate at 80 lbs/cubic ft., Feed temperature 120 degrees F, discharge temperature 308 degrees F.
Number of Screws: 2. Internal Pressure: 2.1 bar (30 psi). Internal Temperature: 343.3 °C (650 °F). Jacket Pressure: 2.1 bar (30 psi). Jacket Temperature: 343.3 °C (650 °F). Orientation: Horizontal. Heat Transfer Surface Area: 19 m² (204 ft²). Product Rate: 907.2 kg/h (2,000 lb/h). Height: 584.2 mm (23 in).
Type: Dryer-Holoflite & Screw
Manufacturer: Joy Denver
Model: D-2420-6
Condition: Used
Material: Carbon Steel
Width: 1,676 mm (66 in)
Length: 6,096 mm (240 in)
Holo-Flite processer Trough rated 80 psi @ 650 F. Double Screw design with 3" Johnson joints on shafts Total heat transfer area is 571 Sq.Ft., screws are 445 Square foot surface area, jacket is 126 Sq.ft. surface area. Heat transfer medium is water. Heat transfer area for screws is rated for 264 gallon fluid volume, 158 gpm flow rate. Contact parts are carbon steel, flight thickness 5/16". Net Trough volume is 74 Cubic foot, rated 60" wc in the trough. Jacket rated for 92 gallons, 39 gpm flow, CS construction. Flat cover on trough. Screws driven by an electric motor through a gear drive. with a DC Drive controller. 3.29 RPM maximum, 20.7 minutes residence time. Originally used as a cooler. Feed rated 15,000 lbs/hr; Bulk density 70; Material Flow 2/4 CFH; Temperature 1560 degrees F, 0 % moisture. Discharge rated 15,000 lbs/hr; Bulk density 70; Material Flow 2/4 CFH; Temperature 550 degrees F, 0 % moisture. 197 gpm water used as heat exchange medium 95 degrees f inlet, 145 degrees discharge. Left hand drive as looking from rotary joint end.
Number of Screws: 4. Internal Pressure: 5.5 bar (80 psi). Internal Temperature: 343.3 °C (650 °F). Jacket Pressure: 2.1 bar (30 psi). Jacket Temperature: 343.3 °C (650 °F). Orientation: Horizontal. Heat Transfer Surface Area: 53 m² (571 ft²). Product Rate: 6,804 kg/h (15,000 lb/h). Height: 1,524 mm (60 in).
Type: Dryer-Holoflite & Screw
Manufacturer: Svedala
Model: Q2424-6
Condition: Used
Material: Carbon Steel
Width: 2,496 mm (98.3 in)
Length: 7,315 mm (288 in)
Quad screw holo-flight processor. Total estimated heating surface area is 1519 sq. ft., Estimated heat transfer surface of material exposed to the trough is 292 Sq. Ft., for the screws is 1227 Sq. Ft. (306.75 sq. ft. each). The heating medium is hot oil. The processor is fitted with a vapor hood. The trough is 24' long x 98.25" wide x 35" high,(with out hood) 69.3" high (with the hood). Trough volume is 159 cubic foot. Quad screw design with timing gears driven through a SYM Cyclo reducer at a ratio of 231:1. Final screw output is 7.6 to 76 rpm.
Number of Screws: 4. Internal Pressure: 2.1 bar (30 psi). Internal Temperature: 343.3 °C (650 °F). Jacket Pressure: 2.1 bar (30 psi). Jacket Temperature: 343.3 °C (650 °F). Orientation: Horizontal. Heat Transfer Surface Area: 141.1 m² (1,519 ft²). Product Rate: 5,443 kg/h (12,000 lb/h). Height: 1,760 mm (69.3 in).
For indirect, efficient heat transfer and controlled drying of sludges, pastes, powders, and granular materials, Holoflite and screw dryers provide a compact and energy-efficient solution trusted across industries. With over 47 years of process equipment expertise, IPP offers immediate access to high-quality used screw dryers and Holoflite units sourced from 20 complete plant sites and included in our inventory of over 15,000 ready-to-ship pieces of equipment. Buying used from IPP helps companies minimize lead times, reduce energy usage, and improve operational performance.
Holoflite and screw dryers use twin intermeshing screws or hollow paddles to convey material through a heated trough while maintaining excellent thermal contact. This low-temperature, indirect drying method is ideal for moisture removal in temperature-sensitive or hazardous materials without risk of combustion or product degradation.
Holoflite and screw dryers are built for corrosion resistance, heat transfer, and durability:
Learn more about indirect thermal drying processes from Process Heating.
Search the IMS inventory or contact IPP’s equipment specialists to find the right Holoflite or screw dryer for your operation. With ready-to-ship systems and expert support, IPP helps companies reduce energy consumption and improve process efficiency.