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Accessories Phone: 516-328-3970 www.technocnc.com  53 Individual zones run the length of the table. The  most  common  question  asked when it comes to vacuum hold-down and nested-based manufacturing is, how much vacuum does my application require? Vacuum systems should be evaluated based on the specific applications. The smaller the part or thinner the material to be held, the greater the volume of air flow needed, thus increasing the size of the vacuum pump. Many people state that you can’t  have  enough  vacuum.  This  is somewhat a true statement, but it can be a very costly fact. It is always easy to over buy. Purchasing a single 40HP or 50HP pump can cost in excess of $25,000. This cost, however, is only the initial cost. What about the utilities? Depending on where your shop is located, these rates can vary considerably. Keep in mind, operating cost (utility) rarely goes down, so this cost will increase year to year. There are other avenues which can be considered.  Purchasing  a  number  of smaller pumps can help reduce the price of  the  pump  as  well  as  reduce  the overhead to run these pumps. If you are processing sheets of materials that have large parts, then a single pump can be utilized. If the nest has numerous smaller parts, then it is best to run all the pumps for maximum air flow. There are other devices which can be purchased to aid the vacuum hold-down system such as a spindle pressure foot, or roller hold-down. These devices push down on the material while being routed, thus aiding the vacuum system. Techno’s vacuum table design is the most flexible and efficient system offered on the market today. Techno understands that fixturing parts can be the most complex part  of  the  manufacturing  process,  in addition to being time consuming. With Techno’s vacuum table, we allow for both mechanical and vacuum fixturing to be used  simultaneously.  What  does  this mean? If you are processing sheets of material such as MDF, Melamine, plastic, foam or any other sheet-like material, vacuum  flow-through  process  is  an excellent solution. If you are processing small or irregular shaped products, then you may want to utilize vacuum along with mechanical  clamps.  With  Techno’s universal vacuum table, you can achieve both.  With  the  T-Slots  built  into  the aluminum vacuum table, it is easy to mount gates for banking your material against, lining the material up square to the axis of travel. In addition, Techno’s vacuum tables are zoned. If you are processing small parts, then you do not require the entire machine’s vacuum table to be wide open, rather,  just  a  small  section.  Techno’s vacuum     tables     are     also     easily customizable. Techno’s vacuum tables are channeled, which allow gasketing material to be routed around the vacuum table. The channels cut into the table are placed on a 1.0” grid; therefore, the gasketing can be formed to any pattern to fixture small parts. In  areas  along  the  open  zone  where vacuum is not required, simply utilizing the rubber plugs will close off the other vacuum ports in the zone. This flexibility makes the job easier and setup minimal. Techno Vacuum Table Techno offers a number of clamps and ac- cessories for the vacuum table. See below. M6 T-Nuts HL6100M209119 (10 pc/bag) Cam Clamp HL5400M290002 Rubber Plugs H91X30-PL006-001 (50 pc/bag) Foam Gasketing HX4892-W0002 (40 ft/bag) Vacuum Pod HX4892-4X4POD Grid pattern offers maximum flexibility and provides easy customization of table surface.