VIRTIS General Purpose Freeze-Dryers

VIRTIS General Purpose Freezedryers

Botanicals, books, archaeological artifacts, even items of a size or shape not previously suited to conventional freeze dryer design, can be process-matched to a VirTis General Purpose Freeze Dryer.

When you need to preserve a product without altering it, there is no replacement for freeze drying. This gentle process removes moisture from an aqueous product, without affecting its biological, chemical or structural properties.

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Because a rigid ice matrix holds the solid components in place, the freeze drying process maintains product integrity. Compare this with conventional drying, which typically causes shrinkage or chemical reactions. This damagesg cells and renders an end product useless for additional chemical analysis, or for final product display.

Thanks to advances pioneered by VirTis, you can now count on precise, repeatable results, time after time.

General Purpose Freeze Dryers Features and Options


Process Matching: We design our general purpose freeze dryers to meet your exact processing requirements, to help you achieve more productivity and higher product quality levels than ever before.

Reliability: We make every freeze dryer reliable enough to give you years of trouble-free performance, and back it with a warranty and support program that guarantees the protection of your investment.

Durability: Cycles typically utilized in a general purpose freeze dryer often extend beyond the 24-hour mark, so reliable designs, coupled with carefully selected components, are one of our most important considerations. We also construct every unit to allow for easy routine maintenence.

Flexibility: VirTis freeze dryers are flexible enough to allow easy modification to meet changing needs, and the incorporation of the latest freeze drying technology.

Range Selection: Not every processor has the same shelf area requirements, so we developed our freeze dryers to cover the gamut, from 0.87 square feet (0.82m2) to a generous 370 square (34.6m2) foot model with a mesh tray drying area.

Product Drying Chamber: Every VirTis product drying chamber is constructed of specially treated type 304 stainless steel, and equipped with easy-to-remove stainless steel product trays to allow complete flexibility in product loading and product height constraints. To prevent unwanted heat transfer from outside the chamber, all models are insulated with closed-cell CFC-free foam. Product drying chambers also feature an easy-opening door with a viewing window to facilitate observation of the drying process.

Condenser Systems and Capacities: Every general purpose condenser is constructed of type 304 stainless steel and designed for rapid defrost turnaround. Numerous models feature a wide selection of condenser capacities, designed to match your exact processing requirements. A wide range of process condenser temperatures is available through selection of refrigeration systems and CFC-free refrigerants.

Heat Transfer Systems: General purpose freeze dryers start with a standard direct-expansion chamber temperature control, and extend to a fully programmable, silicone fluid-based heat transfer system that circulates fluid through an internal radiant coil and around the product chamber for even, uniform radiant heating. Such delicate products as botanicals benefit from our programmable heat transfer system, which allows the maximum drying rate and the quickest turn-around time.

Vacuum Systems: All general purpose freeze dryers are provided with two-stage high capacity pumps designed for rapid pump-down initially or after mid-cycle defrosting. Standard or optional product chamber isolation valves allow you to hold chamber vacuum during defrosting, and facilitate product dryness pressure rise studies.

Refrigeration Systems: VirTis refrigeration systems are designed for long life and ease of service by local refrigeration service companies. All components are selected for world-wide availability. Special processing temperatures are easily handles by our wide range of optional refrigeration systems.

Controller: User-friendly instrumentation and controls eliminate guesswork and unpleasant surprises. VirTis gives you precise control of the drying rate until final completion of you sensitive and valuable end product.

Range of Applications

Flowers: Freeze dried flowers have become an exciting industry. Our general purpose freeze dryers were designed not only to preserve the shape, color and fragrance of botanicals, but to dry them faster than our competitors while maintaining your high quality standards. Each load of rose heads or long stem roses requires a lot of pre- and post-drying labor, so why compromise your quality in the freeze drying process?

Taxidermy: General purpose freeze dryers are flexible enough to freeze dry large and small animals in the entirety, with extremely lifelike results.

Water Damaged Documents: General purpose freeze dryers dry and preserve water-soaked papers and books that would otherwise be unsalvageable.

Biological Specimens: Organs and other biological specimens can be preserved for study, without the drawback of heavy chemical preservative smells.

Irregular Shapes: If it doesn't fit neatly into a conventional freeze dryer, or has an irregular shape or size, there's a good chance our line of general purpose freeze dryers may be your best answer to your biotechnology or general freeze drying applications.

Controller

TheLyotrollmicroprocessor system is designed to electronically control all of the necessary functions of the VirTis General Purpose Freeze-Dryers.

General Purpose Freeze Dryers Specifications

General Purpose Freeze Dryers Series 24D x 24


Product Chamber:Standard System

Tray Levels 2 3 4 5
Tray Area: ft2 (m2) 6.87 (0.64) 8.75 (0.81) 11.3 (1.06) 14.5 (1.35)
Tray Spacing: in (mm) 7.81 (198) 6.50 (165) 5.13 (130) 3.86 (98)
Number of Trays 2 3 4 5
Chamber Control Range°C (°F) -29 degrees c to 0 degrees c -29 degrees c to 0 degrees c -29 degrees c to 0 degrees c -29 degrees c to 0 degrees c
(-20 degrees F to 32 degrees F) (-20 degrees F to 32 degrees F) (-20 degrees F to 32 degrees F) (-20 degrees F to 32 degrees F)

Product Chamber: Programmable Heat Transfer System

Tray Levels 2 3 4 5
Tray Area: f2 (m2) 5.9 (0.55) 7.97 (0.74) 10.4 (0.97) 13.3 (1.24)
Tray Spacing:in (mm) 7.81 (198) 6.5 (165) 5.13 (130) 3.85 (98)
Number of Trays 4 6 8 10
Chamber Control Range:°C (°F) -29 degrees C to 0 degrees C
(-20 degrees F to 140 degrees F)

Product Chamber: General

Product Chamber Volume 6.3 Cubic Feet
Product Chamber Construction Type 304 Stainless Steel
Product Chamber Door Hinged, Clear Acrylic

Condenser System

Condenser Bland-Off Temperature°C (°F) -53 (-63)
Total Capacity: Liters 12
Condenser Surface Area in2 (cm2) 270 (1742)
Condenser Capacity in 24 Hours: Liters 8.4
Deposition Rate in Liters per Hour 0.35
Condenser Constructions Smooth Wall, Stainless

Defrost System

Electric High Efficiency

Vacuum System

Vacuum Pump Two-stage, 127 Liters per Minute
System Blank-Off Pressure 5 Millitorr
Pump Down to 100 millitorr Less than 20 minutes (Dry)
Leak Up Rate Less than 30 millitorr per hour
Average Current Consumption 8.4 Amps

General Dimensions and Services

Height: in (cm) 79 (200)
Width: in (cm) 34 (86)
Length: in (cm) 28 (71)
System Weight: lbs (kg) 570 (260)
Voltage Requirements 208/60, 230/60
220/50, 240/50
Average Current Consumption 7.8 Amps

General Purpose Freeze Dryers Series 24D x 48


Product Chamber: General

Product Chamber Volume 12.6 Cubic Feet
Product Chamber Construction Type 304 Stainless Steel
Product Chamber Door Hinged, Clear Acrylic

Product Chamber: Standard System

Tray Levels 2 18.0 (1.67) 4 5
Tray Area: ft2 (m2) 13.2 (1.23) 18.0 (1.67) 23.4 (2.18) 29.8 (2.78)
Tray Spacing: in (mm) 7.81 (198) 6.50 (165) 8 3.85 (98)
Number of Trays 4 6 8 10
Control Chamber Range:°C (°F) -29 degrees C to 0 degrees C
(-20 degrees F to 32 degrees F)

Product Chamber: Programmable Heat Transfer System

Tray Levels 2 3 4 5
Tray Area: ft2 (m2) 12.3 (1.15) 16.50 (1.53) 21.5 (2.01) 27.5 (2.57)
Tray Spacing: in (mm) 7.81 (198) 6.5 (165) 513 (130) 3.85 (98)
Number of Trays 6 12 16 20
Chamber Control Range: C°(°F) -29 degrees C to 0 degrees C
(-20 degrees F to 32 degrees F)

Condenser Systems

Condenser Type 12ES 12XL 12EL 25ES 25XL 25EL
Condenser Blank-Off Temperature°C (°F) -53 (-63) -70 (-95) -85 (-120) -53 (-63) -70 (-95) -85 (-120)
Total Capacity: Liters 12 12 12 25 25 25
Condenser Surface Area in2 (cm2) 270 (1742) 270 (1742) 270 (1742) 506 (3264) 506 (3264) 506 (3264)
Condenser Capacity in 24 Hours: Liters 8.4 8.4 8.4 14.0 14.0 14.0
Deposition Rate in Liter Per Hour 0.35 0.35 0.35 0.58 0.58 0.58
Construction Stainless Steel, Smooth Wall

Defrost System

Electric, High Efficiency

Vacuum System

Vacuum Pump Two-Stage, 400 Liters per Minute 400B (-D16B)
System Blank-Off Pressure 5 Millitorr
Pump-Down to 100 Millitorr Less than 20 minutes (Dry)
Leak-Up Rate Less than 30 millitorr per hour

General Dimensions

Height: in (cm) 79 (200)
Width: in (cm) 34 (86)
Length: in (cm) 52 (132)
System Weight: lbs (kg) 950 (432)
Voltage Requirements 208/60, 230/60
220/50, 240/50
Average Current Consumptioin 8.4 Amps

General Purpose Freeze Dryers Series 36D x 66


Product Chamber: General

Product Chamber Volume 27.5 Cubic Feet
Product Chamber Construction Treated Mild Steel
Product Chamber Door Hinged, Clear Acrylic

Product Chamber: Standard System

Tray Levels 2 3 4 5 6 7 8 9
Tray Area ft2 (m2) 22.3 (2.870 30.8 (2.87) 40.3 (3.76) 51.4 (4.80) 61.5 (5.74) 73.5 (6.87) 80.0 (7.47) 88.2 (8.24)
Tray Spacing: in (mm) 11.6 (295) 9.56 (243) 7.81 (198) 5.9 (149) 4.5 (117) 386 (98) 3.81 (96) 3.36 (85)
Number of Trays 4 6 8 10 12 14 16 18
Chamber Control Range:°C (°F) -29 degrees C to 0 degrees C
(-20 degrees F to 32 degrees F)

Product Chamber: Programmable Heat Transfer System

Tray Levels 2 3 4 5 6 7 8 9
Tray Area: ft2 (m2) 21.2 (1.98) 29.1 (2.71) 37.8 (3.53) 48.5 (4.53) 59.5 (5.56) 70.0 (6.54) 74.8 (6.99) 83.1 (7.77)
Tray Spacing: in (mm) 11.6 (295) 9.56 (243) 7.81 (198) 5.9 (149) 4.6 (117) 3.86 (98) 3.81 (96) 3.36 (85)
Number of Trays 8 12 16 20 24 28 32 36
Chamber Control Range: C°(°F) -29 degrees C to 60 degrees C
(-20 degrees F to 140 degrees F)

Condenser Systems

Condenser Type 25ES 25XL 25EL 35ES 35XL 35EL
Condenser Blank-Off Temperature C°(°F) -53 (-63) -70 (-95) -85 (-120) -53 (-63) -70 (-95) -85 (-120)
Total Capacity: Liters 25 25 25 35 35 35
Condenser Surface Area in2 (cm2) 506 (3264) 506 (3264) 506 (3264) 750 (4838) 750 (4838) 750 (4838)
Condenser Capacity in 24 Hours: Liters 14.0 14.0 14.0 20.0 20.0 20.0
Deposition Rate in Liter per Hour 0.58 0.58 0.58 0.83 0.83 0.83
Construction Stainless Steel, Smooth Wall

Defrost System

Electric, High Efficiency

Vacuum System

Vacuum Pump Two-Stage, 590 Liters per Minute
System Blank-Off Pressure 5 Millitorr
Pump-Down to 100 Millitorr Less than 30 minutes (Dry)
Leak-Up Rate Less than 30 millitorr per hour

General Dimensions and Services

Height: in (cm) 75 (190)
Width: in (cm) 44 (112)
Length: in (cm) 70 (178)
System Weight: lbs (kg) 1800 (818)
Voltage Requirements 208/60, 230/60
220/50, 240/50
Average Current Consumption 12.8 Amps

General Purpose Freeze Dryers Series 36XD x 72


Product Chamber: General

Product Chamber Volume 54 Cubic Feet
Product Chamber Construction Treated Carbon Steel
Product Chamber Door Hinged, Clear Acrylic

Product Chamber: Programmable Heat Transfer System

Tray Levels 5 6 7 8
Tray Area: ft2 (m2) 85 (7.89) 102 (9.47) 119 (11.0) 136 (12.6)
Tray Spacing: in (mm) 5 (127) 4.00 (101) 3.28 (83) 2.75 (69)
Number of Trays 20 24 28 32
Chamber Control Range:°C (°F) -29 degrees C to 60 degrees C
(-20 degrees F to 140 degrees F)
Heat Transfer System Circulated Silicone Fluid through individual coils for each shelf

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