Used vacuum pumps are those meant to perform the same functions of the brand new ones; the difference, however, is that used vacuum pumps are often much less expensive.

Used vacuum pumps are usually supplied by vacuum pump repairing and servicing dealers who acquire the pumps from those who have opted to purchase new ones. Or, when wear and tear plagues old pumps, these are given over to recycling dealers. They repair and service them to good effect, almost like the fresh, finished product, and offer them to customers who can't afford to invest in brand new pumps at the moment.

One plus point is that used vacuum pumps also get warranty from the dealers, which extends from six months to one year. Sometimes, manufacturers also recycle used ones and sell them to needy customers.

Many manufacturers offer used and rebuilt vacuum pumps with a six-month warranty. Many also offer trade-in allowances on select new pumps. Surplus Record Machinery & Equipment Directory is a leading online market place for used and surplus industrial machinery and equipment, including vacuum pumps, with a listing of over 60,000 industrial assets.

There are firms supplying vacuum pumps and vacuum equipment in the "used-tested- good" condition with a thirty-day return privilege, or "rebuilt," with a year warranty on materials and workmanship. There are online, live database facilities, where used vacuum pumps and other vacuum equipment can be found. These are topped up with up-to-the-minute physical inventory. Customers can deal directly with the owners and thus pay no commission.