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Introduction Vacuum freeze drying is the removal of water or other solvents from the frozen samples. During the whole drying process, the sample is in liquid state and the temperature is generally lower than -10. The purpose of vacuum freeze drying is to restore the original characteristics of the sample after rehydration. Because the drying process is carried out at low temperature, it can be used for some materials such as proteins, which are easy to be denatured at high temperature, and can ensure that the properties of other compounds will not change. Most of the biological products, such as tissues, tissue extracts, bacteria, vaccines and serum, were changed into dry samples by vacuum freeze-drying. Vacuum freeze drying is the most gentle process to preserve the biochemical propertie-50℃~50℃ Lab Vacuum Freeze Dryer Lyophilizer Top Press Freezing Drying MachineThe application area of this unit extends from routine drying operations to process optimisation tasks. This unit is suitable for drying solid or liquid, mainly aqueous products in vials, ampoules, tubes, other glass containers or dishes. The shelf made by sus 304 and heat exchange via silicon oil as medium ,it enable shelf temperature uniform and temperature control stability. Features:◎ Plate pre-freezing function ◎ Rising and cooling are controlled by silicone oil, and the temperature uniformity of the plate is high. ◎ Freeze-drying automatic control system: programmable programming, from freeze-drying to defrost are programmed control. ◎ Pulse backfilling system: slow, medium and fast backfilling modes can be selected to avoid the problem of effective substances being blown away by aeration of granular and flocculent substances after the end of freeze-drying. ◎ Freeze-drying curve optimization control algorithm can control the sample heating rate and the current stage vacuum value in the sublimation and analytical drying stage. ◎ Automatic drainage system: After drainage, it interlocks with the vacuum system to avoid vacuum system failure caused by forgetting to close the drainage valve. ◎ Manual automatic mode selection: manual mode is used to explore the process parameters (human intervention is strong), automatic mode is used in the mature stage of the process, one-click operation, simple and convenient. ◎ Data recording system: multiple options for data recording system ◎ Calibration function: temperature and vacuum degree calibration can be carried out to ensure the accuracy of measurement values for long-term use. ◎ Freeze-drying curve query function: can query the temperature and vacuum degree curve, convenient process optimization and freeze-drying effect verification.PaymentDelivery detailsTerms of salesAbout usContact usPaymentPayment should be completed within 4 (Four) days of auction closing. Or unpaid dispute will be filed for closing auction.We will leave a positive feedback immediately after payment is received. We appreciate a positive feedback as much as you do. If for some reason there is any issue with the purchase, please contact us prior to leaving feedback, we will be glad to work together and provide a satisfying solution.Delivery detailsWe only ship the item to the eBay Verified address that is sent to us at the time of checkout, most shipment will be shipped within 1-5 business day. Please verify the correct shipping address in your eBay account before making your payment. Shipping time during holidays may take longer than normal. Any brokerage, customs, and duty fees associated with international shipments are the customer's responsibility and are not included in our shipping charges. If you are located outside of the continental 48 United States, please email us in advance to see if the specific item ships to your location. These orders are generally shipped within 1-5 days after payment is received. Please be patient as they are often subject to additional inspection upon delivery.Terms of salesAll of our items are backed with a 30-day return policy. We ensure all our items are new and in excellent condition prior to shipping. In case you receive the item that is not to the standards above, please contact us via e-Bay messages. All returns must be in new original condition as received and should be shipped with delivery confirmationPlease note that all returns must be pre-approved by us. Unauthorized returns will not be accepted. If you need to return, please check twice to confirm the item not work and contact our customer service representative, let us know the detailed problem and send us some pictures for confirmation.We ONLY accept returns with original package. Please make sure that item has NO man-made sabotage. Used items will not be accepted for return.About usWe are a comprehensive company specializing in the research and development, production and sales of lab related equipment. Company tenet: Respect reputation and contract, provide high-quality and low-cost equipment for serve scientific research.We believe that it is our vision and mission to provide innovative products with best service and competitive price to satisfy you. Our goal is to make sure that you can find exactly what you are looking for and make it easy for you to place your orders.Contact usEmail Customer Support:9:00am-2:00am PST Sunday-FridayAll emails will be responded to within 12-24 hoursCountry/Region of ManufactureChinaBrandZZKDMPN614162664606TypeFreeze DryerApplicable IndustriesBiological, Food Shop, Food & Beverage ShopsTotal power1300WVoltage110V / 220V Ultimate vacuum (pa)≤5PaCold trap temperature≤-65℃Bulkhead temperature range-50℃ to 50℃Temperature uniformity±1℃Working conditions Ambient temperature10℃～30℃Tray quantity1Tray Size300*400mmShelf area0.12m3Water Catching Capacity1-2kgNumber of vials 12（reference ）700Number of vials 16（reference ）300Number of vials 22（reference ）920Weight80kgOverall size880*700*550mm