Rotary Vane Vacuum Pump for Thermoplastic Molding Machine

Suction molding machine, also known as thermoplastic molding machine, is a machine that absorbs heat-plasticized PVC, PE, PP, PET, HIPS and other thermoplastic plastic coils into various shapes of advanced packaging boxes, boxes and other products. Using the vacuum suction generated by the vacuum pump, the heated and softened PVC, PET and other thermoplastic plastic sheets are blistered into various shapes of vacuum covers, blister trays, blister shells, etc.  

Vacuum blister machines are various sizes and types of blister molding equipment, and a very critical piece of equipment is the vacuum pump. A vacuum pump ensures that the plastic film or sheet is shaped exactly according to the mold. At present, in the production and processing of food, beverages, candy, stationery, hardware tools, daily necessities, and chemical products, vacuum pumps are needed to achieve the purpose of blister molding.  

 

How to choose a suitable rotary vane vacuum pump for a vacuum blister machine?  

1: Vacuum degree

The so-called vacuum degree is a way of expressing the degree of thinning of the air, which is usually expressed in units such as Pa, mba, mmHg, etc. After the blister product is formed, most of the product bubbles are because the vacuum degree failures to meet the requirements, resulting in product defects.

2: Capacity

It refers to the amount of fluid that the vacuum pump removes flowing through the closed pipe or effective section in unit time. The vacuum capacity is an important indicator to measure the suction force. When choosing a vacuum pump, user should pay attention to the specifications and thickness of the product to calculate how much air needs to be removed in one hour or in one minute, so as to determine how much flow vacuum pump is needed.  

 

Rotary Vane Vacuum Pump Advantages

  1. High efficiency and energy saving, more than 70% energy saving.

  2. The rotary vane vacuum pump operates at a light load in a semi-vacuum state, the theoretical life is over 400,000 hours (equivalent to 80 years), and there is no need to replace the shaft pump within 20 years.

  3. No need for a lot of water, saving water bills and water pipeline works.

  4. The rotary vane vacuum pump provides stable vacuum pressure and reduces production failures.

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