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Freeze Dryers

 

 

 

Laboratory Series

 

 

System features:

 

• Shelf and Manifold Dryer
• 3.75 Sq Ft of Shelf Area
• PC/PLC Control System
• -53C or –85C Condenser Temperature
• -45C or –70C Shelf Temperature
• 6L in 24 hours, 8L total capacity
• Rectangular 316L Chamber
• 3 Shelf Bulk or 3 Shelf Stoppering
• 10” x 18” Shelves
• Fluid Filled Hollow Shelves
• Internal Condenser with Hot Gas Defrost

• CFC-free Refrigeration



Laboratory Series is a new generation freeze dryer that is both a shelf and manifold dryer. Product can be loaded on the shelves and frozen prior to drying or can be frozen in an optional shell freezer for manifold drying. A rectangular chamber offers a compact profile with either a two shelf stoppering or three shelf bulk assembly. Both options have a radiant heat plate above the top shelf for uniform drying on all shelves. All internal        surfaces are constructed of 316L stainless steel and offer a polish of 20 Ra or better.

For the fastest drying rates and maximum pump protection the condenser is located inside the chamber beneath the bottom shelf. Hot gas is used for defrosting the condenser when drying is complete. Fluid filled hollow shelves with a serpentine fluid path provide the most uniform shelf temperature possible and results in consistent and repeatable drying. All units come with one product tray per shelf, either a removable bottom or bulk. Pneumatic stoppering is provided by a bottom up pneumatic cylinder, which is powered by a self-contained air pump.

 

Specifications:

 

Model

LD 53

LD 85

Condenser
Temp

-53 C

-85 C

Condenser
Capacity

6 liters/24 hours (8 liters total)

Shelf Temperature

-48 C to +65 C

-70 C to +65 C

Refrigeration

2 HP
CFC-Free

1x2HP, 1x1HP
Hermetic, CFC-Free

Defrost

Hot  Gas - Automatic

Vacuum Pump

200 l / min.

Cabinet
Dimensions

35"W x 40"D x 52" H

Voltage

208-240V, 50/60Hz,
1PH, 20A

Shelves

Number

Area [sq ft / sq m]

Clearance [in / mm]

3

3.75/0.348

2.5 /63

 

 

All the freeze dryers are built to meet the most exacting current Good Manufacturing Practices (cGMP) standards.

 

Opti-Dry™ Control Features

 

Automatic

10 Freezing Steps
16 Drying Steps with Pressure Control
1 Step Secondary and 1 Step Final Drying
Alarms, Recipe Management, Data Logging

 

 

 

Maintenance

 

Independent Operation of Components, with
Troubleshooting and Calibration

Manual

 

Individual Switches for Shelf, Condenser, Vacuum, Control, Isolation Valve, and Release. Single Set-points for Shelf and Vacuum.

 

 

Opti-Dry (TM)
Plus Features

 Includes Opti-Dry Basic features
 Eutectic Point Determination
 Product temperature feedback
 Optimizes the recipe, both freezing and primary drying, based on the product temperature avg.

System Test

 

Performance Evaluation of Shelf,
Condenser, Vacuum, Heating, and Control

Opti-Dry (TM)
Pro Features

 Includes Opti-Dry Basic & Opti-Dry Plus features
 Primary Drying Endpoint   

 Determination Via:   Pirani/Capacitance Manometer Comparison

Defrost

 Automatic Timed Hot Gas

 

 

 

 

 

 

 

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