Used Rotary Vacuum Dryers for Sale
Rotary vacuum dryers are batch drying systems designed to remove moisture or solvents from materials under reduced pressure while gently agitating the product. By operating under vacuum, these dryers lower the boiling point of liquids, enabling drying at lower temperatures, ideal for heat-sensitive or solvent-based materials. Used rotary vacuum dryers are widely used in pharmaceutical, chemical, and specialty processing applications where controlled drying, product integrity, and solvent recovery are important. Browse available inventory below to find systems suited to your process requirements.
Stock No.:
47140Used - Buss Paddle Rotary Vacuum Dryer (6000L) – Stainless Steel, Industrial-Grade
Used- Buss Paddle Rotary Vacuum Dryer. (6000 liter) 211 cubic foot working capacity. 316L stainless steel contact parts. 1600mm (62.992") diameter x 4100 mm (161.417") long, dished ends. Rated internal vacuum jacket 2 bar. Openings: top 18", (2) 4-3/4" sightglass; side (2) 11" x 15" inspection doors. Center plug valve outlet 9-1/2". Bare shafted. Driven By 11 Kw 6 RPM Fixed Gear Motor Drive. Our freight specialists can assist you with door to door transportation and all customs documents needed to make the process go as smoothly as possible.
MFR: Buss
Stock No.:
10128091Used Krauss-Maffei MT 1/200 Vacuum Mixer Dryer – 316L SS | 49.43 cu.ft. | Full Vacuum | 10 HP Orbiting Screw
Used- Krauss Maffei Mixer Vacuum Dryer MT. Model MT 1/200. Serial # 7098. National Board # 21424. Constructed of 316L stainless steel. Interior has polished surface. Conical vessel has a capacity of 49.43 cuft with working volume of 35.3 cuft. Dryer uses an 8" diameter inclined orbiting screw, driven by a 10 hp drive to gently agitate product while drying. Can dry particles up to 5 mm in size. Vessel is rated for Full Vacuum/150 psi @ 450 f on jacket and internal. Acutal drying temperature maximum is 302 f. The top has an 18" manway with 6" sight glass, 18" flanged fitting, 4" sight glass, (2) 3" flanged fittings, (2) 2" flanged fittings, 6" flanged fittings and (2) 1" threaded fitting for the top jacket. The side has (2) 2" flanged fittings for the body jacket. The bottom has a 10" flanged discharge fitting with pneumatically operated flush mount valve and (2) 1" threaded fittings for bottom jacket.
MFR: Krauss Maffei
Stock No.:
53844015Used Littleford Model DVT-130 Mixer/Reactor – High-Performance Industrial Proces
Used Littleford Model DVT-130 Mixer/Reactor, Stainless Steel. 3.1 Cubic feet working capacity (4.6 total). Jacketed chamber approximately 20" diameter x 26" long, bolt-on flat hinged jacketed cover. Jacket rated 75 psi at 32 to 320 degrees F. Internal rated 100 psi / Full vacuum at 32 to 320 degrees F. Side chopper motor, driven by 15hp, 3/60/230/460 volt, 3495 rpm (not installed). Includes control panel with voltage/phase indicators, gauges, piping. National Board#4298. Serial# 41779-4298. 3/60/480 Volt.
Stock No.:
81560Used Vevey 4,000 Liter Rotary Vacuum Dryer – Stainless Steel | 75 Cu. Ft. Capacity
Used- Vevey 4,000 Liter Capacity Rotary Vacuum Dryer, 75 Cubic Feet Working Capacity, Stainless Steel. Approximate 52" diameter x 128" straight side (1380mm diameter x 3250mm straight side). Dished, one end removable. Inside rated for 30 psi (2 bar) and full vacuum (-1) at 392 degrees F (200 degrees C). Cored agitator with paddles rated for 75 psi (5 bar) and full vacuum. Flat channel jacket rated for 75 psi (5 bar) and full vacuum (-1). (2) 12" x 15" (310mm x 385mm) end clean out doors. Mechanical seal. Complete with gearbox, 6,6 kW, 500 volt motor. Our freight specialists can assist you with door to door transportation and all customs documents needed to make the process go as smoothly as possible.
MFR: Vevey
Stock No.:
81565Used Vevey 75 Cubic Feet Rotary Vacuum Industrial Dryer – Stainless Steel
Used- Vevey 75 Cubic Feet Working Capacity Rotary Vacuum Industrial Dryer. Stainless steel on product contact parts. Approximate 52" diameter x 128" straight side (1400mm diameter x 3000mm straight side). Dished, one end removable. Inside rated for approximate 72 psi (5 bar) and full vacuum (-1) at 311 degrees F (155 degrees C). Cored agitator shaft with paddles rated for 72 psi (5 bar) and full vacuum. (2) 12" x 15" (310mm x 385mm) end clean out doors. Adjustable packing glands. Complete with gearbox, 15kW motor. Our freight specialists can assist you with door to door transportation and all customs documents needed to make the process go as smoothly as possible.
MFR: Vevey
Stock No.:
13607008AVA-Holland Merten GmbH Rotary Vacuum Paddle Dryer, type HTK 200.
Used- AVA-Holland Merten GmbH Rotary Vacuum Paddle Dryer, Type HTK 200. 316TI (1.4571) on product contact parts. Total capacity 8.3 cu. ft (235 liter), Working capacity 156.66 cu. ft (156.66 liter). Double jacketed. Inside operating temperature 266F (130C), Design temperature 392F (200C). Internal rated for full vacuum and 45 PSI (-1/3 bar). Jacket pressure 90 PSI (6 bar). Heated shaft speed of 107 RPM driven via a gearbox by a 5.5 Kw EExdellCT4 motor. Mechanical seal. Maier heater for the shaft heating. Frame mounted. New year 2002. Serial number # 5499/2. Overall dimensions: 111" L x 36" W x 49" H (3400 mm L x 1100 mm W x 1500 mm H). Weight approx. 1.6 tonnes. Reported in good condition. Previously used in a pilot plant for solid phase modification of wood.
Stock No.:
13607009Used AVA-Holland Merten HTK 200 Rotary Vacuum Paddle Dryer – 316Ti Stainless Steel
Used- AVA-Holland Merten GmbH Type HTK 200 Rotary Vacuum Paddle Dryer. 316TI (1.4571) on product contact parts. Total capacity 8.3 cu. ft (235 liter), Working capacity 5.53 cu. ft (156.66 liter). Double jacketed. Inside operating temperature 266F (130C), Design temperature 392F (200C). Internal rated for full vacuum and 45 PSI (-1/3 bar). Jacket pressure 90 PSI (6 bar). Shaft speed 107 RPM driven via a gearbox by a 5.5 Kw (7.37hp) EExdellCT4 motor. Mechanical seal. Frame mounted. New year 2002. Serial # 5499/1. Overall dimensions: 111" L x 36" W x 49" H (3400 mm L x 1100 mm W x 1500 mm H). Weight approx. 1.6 tonnes. Reported in good condition. Previously used in a pilot plant for solid phase modification of wood. Our freight specialists can assist you with door to door transportation and all customs documents needed to make the process go as smoothly as possible.
Stock No.:
53147038Used Krauss Maffei Conical Dryer Model TMD 0.25/160 – Stainless Steel 316Ti, ATEX
Used Krauss Maffei Conical Dryer, Model TMD 0.25/160 "Titus-Mixer-Dryer," constructed from stainless steel 1.4571 (316Ti). This unit features a working pressure of 3 Bar (43.5 PSI) (vacuum possible), jacket working pressure of 6 Bar (87 PSI), and a capacity of 380 Liters (useful capacity 250 Liters). The cone measures 1016mm (40") in diameter and 1066mm (42") in height, with a dished top and a jacketed mixing screw (6 Liters). Powered by a 4.0 kW + 1.5 kW motor, 380 Volt (explosion-proof), and a jacket volume of 96 Liters. It operates at a maximum temperature of 165C and has a 150mm (6") bottom outlet. Manufactured in 1995, the dryer is mounted on a frame, includes switchgear, and is ATEX compatible. Dimensions are 2.0m x 2.0m (6.6' x 6.6') with a total height of 3.5m (11.5'), weighing 2650 KG. Serial Number 7005/742904/3.
MFR: Krauss Maffei
Rotary Vacuum Dryer Applications & Typical Use Cases
Used rotary vacuum dryers are commonly used in processes requiring uniform, low-temperature drying under controlled conditions. Typical applications include:
Drying pharmaceutical intermediates and active ingredients
Removing solvents from chemical slurries and wet cakes
Processing heat-sensitive materials that degrade at higher temperatures
Recovering solvents in closed-loop processing systems
Drying fine powders, crystals, and filter cakes
When to Choose a Rotary Vacuum Dryer
Rotary vacuum dryers are ideal for batch operations where gentle handling and low-temperature drying are critical. They are often selected over tray dryers or direct heat systems when processing materials that are heat-sensitive, oxygen-sensitive, or solvent-laden. Facilities requiring consistent drying with minimal product degradation benefit from the tumbling action and controlled vacuum environment these systems provide.
Used Rotary Vacuum Dryer Buying Considerations
When evaluating a used rotary vacuum dryer, consider the following:
Working Volume & Batch Size: Determines processing capacity per cycle
Vacuum System Performance: Impacts drying efficiency and achievable temperatures
Heating Method: Steam or thermal fluid jackets for controlled heat transfer
Rotation Speed & Agitation: Influences drying uniformity and product handling
Material of Construction: Stainless steel or specialty alloys based on application
Condition & Seals: Inspect vacuum integrity, seals, and drive components
Why Buy Used Rotary Vacuum Dryers
Used rotary vacuum dryers offer a practical solution for adding drying capacity in processes requiring controlled environments. These systems are typically engineered for durability and can be integrated into existing batch operations with minimal modification. For facilities expanding production or replacing drying equipment, used units provide a reliable option without extended fabrication timelines.
Sell Your Used Rotary Vacuum Dryers
If you are decommissioning process equipment or transitioning to different drying technologies, Aaron Equipment can help reposition your rotary vacuum dryers for resale. We assist in evaluating system specifications and connecting equipment with buyers seeking batch drying solutions for specialized applications.
A rotary vacuum dryer is a batch drying system that removes moisture or solvents from materials under vacuum while rotating the vessel. This allows for lower-temperature drying and improved handling of heat-sensitive materials.
They are used to dry pharmaceutical, chemical, and specialty materials such as powders, crystals, and slurries. These dryers are ideal for applications requiring solvent removal and controlled drying conditions.
Rotary vacuum dryers operate under reduced pressure and use gentle tumbling action, while many other dryers rely on direct heat or atmospheric conditions. This makes them better suited for sensitive or solvent-based materials.
Costs are influenced by working capacity, pressure rating, heating system, and overall condition. Units designed for higher vacuum performance or specialized materials may fall at higher price levels.
Yes. Aaron Equipment purchases used rotary vacuum dryers and related process equipment. Our team can review system details and help coordinate resale or direct acquisition opportunities.