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Improved Production Speed in Tinplate Cans Fabrication

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Centralized vacuum system for tinplate cans production

Vacuum pumps in cans production

MIVISA ENVASES is the leading producer of tinplate cans for food industry products, mainly canned fruits and vegetables, fish and meat products in Spain. The customer installed Pneumofore UV vacuum pumps in order to improve the production process and the quality of the cans. Start-up was in October 2006.


The company contacted Pneumofore early 2006 because they were facing troubles in the in process line of their metal can production. Vacuum for cans production is used for the picking of metal sheets prior to the food grade painting which means an important part of the production process. The major problems that were present were high maintenance costs and time as well as significant production shut down times due to high metal sheet rejection rates. A crucial role to all these problems was the fact that the company, with 8 painting lines had 8 installed rotary vane vacuum pumps of another brand, one in each painting room. The vacuum pumps had a huge oil carry over from the exhaust with consequently deleterious oil presence on the metal sheet surfaces. This caused the high rejection rate of cans, due to the bubbled painting discarded by the QC.

Pneumofore studied the vacuum plant with accessories to meet the customers needs and proposed a centralized vacuum solution consisting of 2 x UV16 air-cooled rotary vane vacuum pumps with 22 kW and 971 m3/h at 50 Hz. The pumps are situated outside of the painting rooms. Results have been very satisfactory and the customer plans another installation for 12 painting lines for easy-open tin containers

Vacuum pumps - MivisaThe Pneumofore solution showed immediate advantages. Due to no oil carry over from the exhaust, rejection rates were eliminated, painting was not disturbed, QC was happy. Also maintenance was reduced to one ordinary maintenance operation for every 4000 working hours of the pumps. The two pumps alternate work weekly, thus only one maintenance operation per year is needed, lasting only three hours with one local worker instructed directly by Pneumofore. Other additional benefits were the silent operation by only 69 dB(a) whereas the former installed pumps had an annoying noise coming from worn-out vacuum pump vanes. 

 

June 2007

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ROTARY VANE BY PNEUMOFORE

simple, reliable & durable

Direct coupling means few moving parts, low rotation speed, low temperature. This virtually eliminates repairs and ensure superior reliability and longevity.

high energy savings

Air cooling through vertical layout, direct coupling, and intensive oil injection can result in up to 70% less power usage than other systems.

designed for extremes

Tested and proven for high performance in desert and tropical climates and available for special requirements like explosive gas or food safety.

low cost of operation

Low maintenance, negligible repairs, high energy savings and high reliability (no production downtime) make this the least costly long-term option available today.

easy to install and run

Ready-to-use turnkey system with optional Variable Speed drive. No foundation or water needed. Compact footprint with heat recovery. ISO 9001 and ISO 14001 certified.

first class support

Each unit comes with integration engineering and a 5-years warranty. Extraordinary and regular service by Pneumofore certified professionals is available worldwide.
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