Ball valve for vacuum table. We make a large table for vacuum forming. How to make a vacuum table for CNC with your own hands

Vacuum table allows you to significantly simplify and speed up the installation of a CNC milling machine on the table sheet materials. These can be sheets of MDF or acrylic... Moreover, if the sheet is curved, then vacuum fastening allows it to be leveled during operation.
If MDF is regularly processed on the machine, then the machine is probably equipped with a powerful exhaust hood (vacuum cleaner for collecting chips and wood dust - see photo below). Such an extractor with a power of 2.2 kW is capable of not only removing sawdust from the cutting zone, but also ensuring the operation of a vacuum table.

ATTENTION! Operational safety is guaranteed only under certain conditions: the size of the cutters must be no more than the permissible clamping force of the workpiece, the cutting mode must only be tested with the existing vacuum table. Otherwise, the workpiece may be torn off during processing, which can result in serious injuries or even death.

The vacuum table is made of two layers of MDF 20mm thick. Upper layer- front - needed for suction of sheets of the material being processed. The channels on it are divided into six zones (see photo below), which, if necessary, can be drowned out one at a time, depending on the size and configuration of the workpiece being processed. The cross-section of the channels is chosen so that, if necessary, each zone can be sealed along the contour using a household rubber sealing tape with a D-shaped section (tape for sealing windows and doors). The tape is equipped with a self-adhesive layer and is well fixed in the channels. The depth of the channels is selected so that when the vacuum table is turned on, the workpiece lies on the table surface, pressing the sealing tape.

The bottom layer of the vacuum table serves to supply vacuum separately to each zone of the top layer of the table.
The channels of the upper layer have vertical holes to bypass the vacuum from the channels of the lower layer to the channels of the upper layer. There are 4 such holes. for each zone. However, the greater their number, the better.

The easiest way to connect a vacuum table to a vacuum cleaner is using a ubiquitous pipeline, such as a sewer line (see photo below). It is both cheaper and more technologically advanced. The photo shows that a pipe was used to supply vacuum to the machine sewer diameter 110 mm. The vacuum is supplied directly to the machine by six corrugated hoses with a diameter of 50 mm. Each corrugated hose is docked to the vacuum table using a fitting screwed into the table.
All connections are hermetically sealed either with standard seals or clamps (preferably using sealant).

Before assembling the table, all its channels should be treated with PVA glue or primer to ensure that the MDF is impermeable to air (MDF does have good air permeability).
The top layer of the vacuum table is screwed to the bottom layer with self-tapping screws. To prevent the screw heads from interfering with working with the table, there are holes in its surface into which the heads are recessed.
After assembling the table, its surface should be processed with a milling cutter to ensure a flat surface.

Summary

As can be seen from the photo, a vacuum cleaner with a power of 2200 W is used in this design. This vacuum cleaner has a tee at the inlet for connecting three air ducts with a diameter of 100 mm. During all the work, one hole of the tee was occupied by a vacuum table, the second - exhaust system with an inlet hole of 50 mm. The third hole was half-opened to avoid overheating of the vacuum cleaner due to low air flow, because. the vacuum table does not provide air flow at all, the hood has an inlet opening of only 50 mm, i.e. the cross-section of the inlet hole would be only 50 mm instead of 3 holes with a diameter of 100 mm. With this connection, the power of the vacuum cleaner was sufficient to operate the vacuum table and the system for suctioning chips from the cutting zone.
The clamping force of the workpiece on the table depends greatly on the clamping area. An MDF workpiece measuring 600x900 mm can be processed with a 6 mm diameter cutter with the entire diameter to a depth of 6 mm in one pass at a feed speed of 2000 mm/min. In this mode, such a vacuum table is capable of holding the workpiece.
For greater reliability, we can recommend using stops along the edges of the workpiece so that the workpiece cannot be moved during processing. Such a solution will be useful, for example, in the event of a vacuum table failure during operation or in the event of an unauthorized excess of the cutting force. At the same time, the complexity of installing the workpiece on the machine table will not change, and perhaps will decrease (the stops will allow you to place the workpieces in the same place).
In addition, it should be borne in mind that the workpiece on the vacuum table can easily be torn off by vertical force. When planning processing, this should be taken into account and not use cutters that create a lifting force during operation.

Often CNC (numerical software control) are sold together with the vacuum table. It is designed for fastening sheet parts with their subsequent processing. As a rule, processing of such workpieces is curvilinear in nature.

In this case, parts can be made from the most different materials– Chipboard, veneer, plywood. Most often, vacuum tables are used on milling machines that process solid sheets (for example, in the manufacture of furniture).

What does a vacuum table look like?

This device is a processing surface with a coating divided into sectors. Special suction cups and grooves are evenly distributed over the area of ​​the device, which secure the workpiece in the required position. The larger the area of ​​the vacuum table, the more functional and expensive it is.

The workpieces are fixed using a special vacuum pump. He is the one responsible for reliable fastening workpieces to the table surface. Thanks to this invention, curved processing of sheet parts with large dimensions became possible.

It is noteworthy that vacuum vacuum cleaners are used preferably for processing wooden blanks. If there is a need to perform similar work with metal, then magnetic tables are used for these purposes.

It is worth noting that depending on the size and functionality, the price of vacuum tables can vary significantly. At the same time, even the cheapest factory vacuum table will cost the buyer at least 150-170 dollars.

You can also purchase a used device, but the quality of such a table will always be in question. It is because of the factors listed above that many craftsmen create vacuum tables at home.

How to make it at home?

Vacuum clamp for plastic molding

It is possible to make such a device at home, but it is not an easy task. You need to understand the specifics of the device’s operation and the principles of its structure. Any stable sheet material, for example MDF, is suitable for forming a vacuum table. We create the contours of the table like a box and drill holes on the front side of the panel using an ordinary drill.

We attach special legs to the same box and install partitions with holes with a diameter of 7 to 8 centimeters. We do all this to add stability to our table and prevent it from deforming during use.

Energy source (for plastic molding)

Non-chrome wire is often used as a heater. This approach entails quite high costs, besides suitable material quite difficult to find. As an alternative, you can use halogen lamps. It is better to sacrifice the heat level, but get affordable and effective heaters for your homemade vacuum table.

Halogen lamp sockets should be installed in pre-drilled slots in the metal sheet. From printed circuit boards We make tracks for conducting current, install them on the base and only then solder them. Otherwise, you will have to spend a lot of time soldering the tracks. The panel with light bulbs must be in a box with a lid that will allow servicing of the device.

This approach to creating a heat source allows you to heat the entire area, and, if necessary, only individual areas. But to make such a “smart” device, you need to pay more attention to connecting the lamps.

Control system

Key Vacuum Table Controls:

1. Symmetrical thyristor with operating parameters from 20A and 240V. Its function is to regulate the heating process and coordinate the operation of the fan.
2. Front panel with liquid crystal display. The table interface should display the status of each heating row. The panel also contains the device activation key and an emergency shutdown button.
3. Board with electromechanical relays (6 pieces). 5 relays activate the heater lines, and the sixth one activates the fan.
4. Table temperature indicator.
5. Neutral relay board. It consists of electromechanical relays (7 pieces). Their function is to connect the heater lines to the neutral cable.
6. Microcontroller with board (ATmega644). This is the device that is connected to temperature sensor, pressure indicator, display, mode switch, relay board.
7. Control node alternating current. Its function is to compare the signal from the microcontroller, the symmetric thyristor and the AC lines.

Installation of supports for heaters is carried out on a box that has been prepared in advance. After this we install the heater panel. It is also necessary to install a special frame for plastic. We insert it into the supports on special bearings. To better secure the frame around the perimeter of the table, use insulating tape.

The key element of the vacuum table is the fan, which must be attached to the underside of the box. It is worth noting that the vacuum source can be mounted using an additional plate and neoprene gaskets.

After the final creation of all key elements vacuum table, you can begin its installation. Before testing, you should check the quality of all connections, the uninterrupted and safe operation of the electrical equipment of the machine and table.

A similar type of table, only without heating lamps, is also suitable for a milling machine. Thus, we have described for you the independent development and installation of the most complex type vacuum tables designed for plastic processing. To work with metal or wood, it is enough to correctly make only the lower part of this device.

Instead of a fan, a powerful pump can be used as a source of vacuum. In the place where the heating elements are located at the plastic table, you should have milling machine.

Video: vacuum table.

Important nuances

• A special vacuum generator can be used as a source of vacuum. It looks like a small box with a hole for air outlet and vacuum inlet. Also, for devices of this type, an indicator must be installed to measure vacuum indicators.
• The ejector and its level of performance depend on the speed and volumes of air that fly past it. That is why it has little to gain compared to a conventional vacuum pump. After all, to create a high-quality vacuum, you should also use a high-quality compressor. The fact is that to fasten a large part over the entire area of ​​the table, a fairly weak compressor is enough, but to fix a small plate, you need to use a more powerful unit.
• An ordinary industrial vacuum cleaner is poorly suited for creating vacuum clamps, since it is not very suitable for working with a completely closed hose. That is why it is recommended to use a special vacuum pump.

With large parts, a large vacuum table is required. Such equipment is very expensive due to the complexity of transportation and is not always suitable for certain tasks, but you can design a table yourself, to suit your individual size and needs.

Vacuum tables for CNC are designed for milling machines with large sheets wood or metal. Most CNC machines use curved machining. To work on milling machines, you need a surface that reliably holds the workpieces. The vacuum table presses the products to the surface, preventing them from moving, making work on the milling machine more accurate and comfortable. In addition, complete equipment provides heating to the required temperature. It is more versatile than a magnetic table, which is only suitable for processing metal products.

Quite often, CNC milling machines come complete with a vacuum table, but if it is absent or insufficient large size another device is required. In this case, you can buy a used device of questionable quality or make it yourself.

Required materials and tools

To make a vacuum table for a milling machine, you need to find all the components. To create functional equipment you will need:

• wooden or a metal sheet appropriate size;
• metal profile;
• Vacuum pump;
• a heating element;
• Control block.

Tools you will need: drill, screwdriver, wrenches, soldering iron. The remaining tools are used optionally, if available.

Manufacturing stages

After purchasing all necessary materials and tools, you can go to self-assembly table.

Manufacturing of working surface and box

At the beginning of making a vacuum table for CNC, you need to create a working surface with your own hands. To do this, take a pre-prepared sheet of material. Holes are carefully drilled in it, in a checkerboard pattern, using a drill or screwdriver. Later, from the back, the surface will be adjacent to the vacuum pump, which serves to securely fasten the products. To increase the reliability of the structure, partitions are installed. They prevent the table from deforming during use.

Box

The most significant thing here is the height, since the table is designed for a numerically controlled machine. A stable structure for fastening is assembled from metal and wooden parts work surface. The surface above the working area will act as a holder for the heating element. It is advisable that the box be collapsible: this will make it easier further work, setting up equipment or transporting the table in the future.

The desktop should be as stable and reliable as possible. Therefore, it is advisable to avoid short-lived or moving connections in the design. To make it easier to move the tool, you can use adjustable height feet. This will allow you to work on uneven surface, providing stability.

A heating element

Vacuum forming of plastic also requires a special table. During operation, the product is exposed to a vacuum field and a heating element, which heats the plastic to required temperature. To do this, a heating panel is installed above the table. Nichrome thread has proven itself best as a heating element. However, due to the high cost of the material, as well as the difficulty of finding it for free sale when self-production Usually halogen lamps are used.

Among the advantages of use, it should be noted uniform heating, as well as high-quality lighting work area.

A sheet of metal is taken as a workpiece. Holes for lamps are also drilled in it, after which they are secured heating elements and installation of electrical parts. All lamps must be connected in parallel. With more complex design electrical part output to the controller or individual switches to heat certain parts working area. The connection is made by soldering and copper wires. To reduce wiring, more nice looking For ease of operation and greater wiring reliability, it is recommended to use a printed circuit board or several small boards. The design of the light panel should also be dismountable for maintenance.

Vacuum pump

Most important element equipment. Serves to create a vacuum and securely fix the part. It is best to use a specialized vacuum generator with a pressure gauge. If a dedicated vacuum pump is not available, several vacuum fans will do. It is possible to replace them with industrial vacuum cleaners, but in practice their efficiency is lower.

When connecting, it is important to reduce the air flow as much as possible, that is, insulate from the entrance to the working surface. A pressure gauge is needed to measure the results: too much vacuum can damage the part, work surface or equipment. With a more complex table design, the heating part regulators and pressure gauge are installed in the control unit.

Control block

The electronic part of the vacuum table is needed to effectively regulate the heating of the working area and create a more stable fixation of parts. There are many options for implementing a control unit; the biggest role here is played by a milling machine and numerical control installed in work equipment. The most optimal one is selected based on the tasks, budget, and availability of specific elements. For optimal performance A microcontroller with a display and one relay for each control unit are required.

Temperature and pressure sensors are used for comfortable operation. The minimum configuration requires one sensor and 2 relays: one to turn the pump on/off, the other to control the heating panel. To delimit the work area, use the clamp and heat only for part of the table, it is necessary to use a larger number of relays and, accordingly, a more powerful controller. Installing a reliable control unit will make work more comfortable and will allow you not to be distracted by pressure gauge readings.

From time to time, every technologist is faced with a situation where securing workpieces for machining is not an easy task. There are types of parts, the fastening of which to the machine each time requires considerable ingenuity:

• case parts with thin walls (fastening in a vice leads to warping);
• workpieces processed along the contour (mechanical clamps close the processing area);
• thin-sheet workpieces (lack of uniform fastening of the contact surface);
• soft or brittle materials that easily break under load (wood, plastic, glass, etc.)
• large parts complex shape, requiring a lengthy process of fastening using sets of mechanical clamps (for example, aircraft panels);
• workpieces, the processing of which is advisable in one installation without readjustment;
• securing sheet non-magnetic materials;
• securing ultra-thin materials (foil) used in the manufacture and assembly of printed circuit boards and electronic components.

To solve these problems, each enterprise has its own sets of equipment, develops special processing techniques, and often uses special tool. However, in the world there are two technologies for fastening such parts, which significantly facilitate the work of technologists. This is fastening due to a magnetic field and using a vacuum. Magnetic tables are widely used and the principle of their operation is clear. The technology of vacuum clamping of workpieces is currently just beginning to be mastered in Russian enterprises, often solving complex tasks that were difficult or impossible to complete using other methods of consolidation. One of the main advantages of vacuum clamping is the uniform distribution of the clamping force over the entire area of ​​the workpiece, which avoids vibration during machining.

The operating principle of vacuum tables is based on creating a vacuum between the workpiece and the supporting surface of the device. In this case, the entire part is subject to a pressing force equal to atmospheric pressure, which under normal conditions is equal to 760 mm Hg. Art., and is about 1 kgf/cm2. That is, a pressing force equal to 600 kgf will act on a plate measuring 20x30 cm! And this force will increase in proportion to the area of ​​fastening.

Vacuum is created by vacuum pumps of varying power depending on the type and size of the table. Modular devices allow you to work in conditions of coolant supply to the processing zone.

As an example minimum set everyone necessary components for full work vacuum system on the machine, you can give a “starter kit”. This kit includes a vacuum pump, a lattice modular table measuring 200x300x32.5 mm, an adapter (adapter board) for VAC-MAT mats, VAC-MAT mats (10 pcs.), all the necessary elements for fastening the table and vacuum inlets.

This vacuum system allows you to fix and process any flat workpiece, the contact surface of which does not exceed the area of ​​the vacuum table. Thanks to a special adapter, it is possible to perform through processing of workpieces from one installation.

Lattice vacuum tables.

The most common type of vacuum tables. A seal is placed in the grooves of the grid along the perimeter of the workpiece being processed, forming a closed loop. Then the workpiece is installed and based on the eccentric stops. When vacuum is applied, the workpiece is pressed tightly against the table surface.

Tables are manufactured in various designs. Modular tables can be connected to each other, forming large area fastening. Circular tables are designed for securing rings and round workpieces. The vacuum hose can be supplied from the end of the table (standard design on milling and grinding machines), and in the center (fastening to rotary tables machining centers and in lathe chucks). There are a number of standard sizes of tables made of aluminum alloy or steel (an option for magnetic machine tables), but often the size of the vacuum table is determined by the dimensions of the machine table.

Vacuum tables VAC-MAT.

Tables for working with rigid polymer mats VAC-MAT. The design of the mats allows air to be pumped out from the volume of many chambers formed between the workpiece and the polymer mat. As a result, through processing of workpieces becomes possible (making holes, windows or going around the contour of a workpiece from one installation).

All mats have standard size 300x200x2.5 mm, but differ in rigidity, which ultimately affects the manufacturing accuracy of the workpiece being processed. Mats are consumables and replaced when damaged cutting tool. As a rule, one mat is used for through processing of parts of one type. When switching to another type of parts, the mat is replaced. VAC-MAT tables can be made in various designs, including, as in the case of lattice tables, modular. There are also adapter boards that can be installed on grid tables to work with VAC-MAT mats.

Vacuum groove tables

This type of vacuum tables is designed for securing workpieces with a small contact area (small products, workpieces with big amount holes and windows). The use of flat mats with a high coefficient of friction makes it possible to create additional force from the shear of the workpiece relative to the fastening plane.

A flat mat is placed on the plate, in which holes are knocked out, located under the supporting surface of the workpiece, as shown in the figures. When secured, the workpiece is pressed tightly against the mat. On these tables, just like on the VAC-MAT tables, through-processing of workpieces is possible. After perforation, the mat will serve as a template for fastening and processing similar parts.

Vacuum tables FLIP-POD

FLIP-POD vacuum tables have been developed for clamping large workpieces. Clamping with this system allows processing of the end surfaces of workpieces using vacuum suction cups (FP elements).

Each FP vacuum element works as independent valve. When the element is turned to the position with the suction cup up, it is included in the vacuum channel ( working position), in the suction-down position, the FP element takes its place inside the table and turns off the vacuum supply. Height-adjustable FP elements allow you to expand the range of workpieces to be fixed.

The dimensions of the boards and the location of the FP elements are selected based on data on the machine table and the task performed on it. Exist different kinds additional elements for basing workpieces. The vacuum table can be attached to the machine table using side clamps or directly through special mounting holes.

Vacuum tables made of porous materials designed for processing without coolant of thin sheet materials up to foil. The homogeneous porous structure of the working surface of vacuum tables forms an area within which the workpiece can be placed on stops and secured without additional operations to readjust the table for a given part shape. The workpiece can be of any configuration. The pressing force in this case will depend on the total area of ​​the contact surface of the workpiece and the board, as well as on the quality of processing base surface blanks.

Porous table blocks are made of various materials, different in structure and properties (pressed materials with a uniform porous structure and sintered metals: bronze, steel, aluminum). The selection of material is carried out by specialists based on data on the workpieces being processed. It is possible to produce vacuum boards with a working surface tolerance of 5 microns along the plane. Boards can be made to a given size or in the form of connectable modules. Porous materials can be supplied separately in the form of blocks maximum size 500x500x400 mm. If it is necessary to obtain a larger size, the blocks can be glued together into sheets. After gluing, the sheets are subjected to secondary machining to obtain the required surface accuracy.

This type boards have proven themselves in high-precision engraving of thin plates and foil bonding in the production and assembly of printed circuit boards, solar panels and radio-electronic components. The foil is securely fixed, straightening out on the working surface of the board with a plane tolerance of up to 2 microns.

Components for vacuum systems

Selection of a vacuum system consists of selection or design clamping device(boards) of the types described above, in accordance with the technical specifications; the right choice vacuum pump or modular device and other elements ensuring reliable supply low pressure from the pump to the board.

PTC VECTOR LLC is the official representative of the world's leading manufacturer of such vacuum fastening systems, HORST WITTE GERÄTEBAU (Germany). Our specialists have significant experience accumulated during the implementation of these systems at Russian enterprises. We are ready to answer any questions and provide qualified assistance in solving complex technological issues.

COLD FIXING TECHNOLOGY

Cold fixing technology - innovative approach for solutions complex tasks for fixing workpieces without mechanical impact:

• fragile workpieces (ceramics, plastic, glass, polymer materials, etc.);
• small workpieces from any materials;
• cellular materials made of aluminum and fiberglass used in aircraft construction.

Fixing is carried out on a freezing board, onto the working surface of which the thin layer water or a special gel is applied. During the fastening process, the water layer freezes and a thin ice film is formed, which firmly holds the workpiece on the working surface of the board. In this case, the workpiece does not experience mechanical stress and is not deformed. To remove the workpiece, it is enough to switch the device to the heating mode of the working surface.

This technology successfully used in machining on milling, turning and engraving equipment. There is one limitation for all devices - when using, the supply of coolant to the processing zone is prohibited. by the company HORST WITTE Two types of cold fixation systems have been developed:

AFP (Air Freeze Platte) systems

Cooling of the working surface of the board occurs due to the thermodynamic process occurring inside the board when a pressure of 6 atm is supplied. This does not require additional cooling stations. The system consists of a freezing device and a polymer tube. The size of the working field of the device ranges from 100x140 mm to 140x150 mm. Temperature range in cooling/heating modes -10/+10˚С. To make it easier to change workpieces, there may be several cooling plates included in one device. They are easily replaced on the fixture.

ICE-VICE systems

Cooling of the working surface of the board occurs due to antifreeze circulating between the board and the cooling unit. For one system with a cooling unit, it is possible to use 1-2 freezing plates with a working field from 125x150 mm to 500x500 mm. Temperature range in cooling/heating modes -35/+35˚С. The automatic cooling device controls and maintains the set temperature conditions.

A description of cold fixing systems can be seen on the pages of the catalog “Vacuum Fixing Technology”.

Systematic Automation has been manufacturing vacuum tables for over 30 years.

Almost perfect surface (tolerance no worse than ± 25 µm / sq.ft.) – result unique technology manufacturing and using high quality equipment. Annually

Systematic Automation manufactures thousands of vacuum tables each year for a variety of unique applications: assembly manufacturing, CNC machines, forming, cutting, digital printers, photography, engraving, fabric processing, inkjet printers, research equipment, laboratory equipment, lamination, laser engraving and cutting, plotters, sail making, screen printing, ultrasonic cutting machines, presses, carpet cleaning.

Design of vacuum tables

The top of the table is made of durable aluminum alloy 3mm thick. Usage epoxy resin in design, provides good protection from dents and bends.

The base of the vacuum table has a “honeycomb” structure and is made of a material that reduces the effect of temperature differences on the unevenness of the table surface. The honeycomb design ensures uniform air flow across the entire surface of the table.

The “collector” measuring 25x25mm is located around the honeycomb base, due to which the best possible distribution of vacuum is achieved between all the holes in the table.

Hole size

IN standard version The holes in the table have a diameter of 1.6mm, and are spaced at 12.5mm intervals, which is optimal for most jobs.

Materials such as 127µm thick polycarbonate or vinyl will not deform against 1.58mm holes under the full force of a standard vacuum pump (see specifications).

Optionally, the holes can be custom-sized (minimum 0.79mm). The 0.79mm holes are countersunk on the underside for minimal air flow loss.

Fastening

All tables have a 9.5mm flange around the perimeter for mounting. If the fitting for connecting the vacuum pump is located not at the bottom, but at the side, then there will be no flange on this side. If necessary, mounting holes will be drilled in the flange in accordance with the customer's drawing.

Standard parameters Options FAQ Video

External dimensions of standard vacuum tables. Vacuum holes are located 25mm from the edge.

• 127x152x30mm. (5″ x 6″ x 1 3/16″)
• 203x203x30mm. (8″ x 8″ x 1 3/16″)
• 304x203x30mm. (12″ x 8″ x 1 3/16″)
• 304x304x30mm. (12″ x 12″ x 1 3/16″)
• 304x406x30mm. (12″ x 16″ x 1 3/16″)
• 304x609x30mm. (12″ x 24″ x 1 3/16″)
• 304x762x30mm. (12″ x 30″ x 1 3/16″)
• 355x355x30mm. (14″ x 14″ x 1 3/16″)
• 406x279x30mm. (16″ x 11″ x 1 3/16″)
• 457x279x30mm. (18″ x 11″ x 1 3/16″)
• 508x406x30mm. (20″ x 16″ x 1 3/16″)
• 508x431x30mm. (20″ x 17″ x 1 3/16″)
• 508x457x30mm. (20″ x 18″ x 1 3/16″)
• 508x508x30mm. (20″ x 20″ x 1 3/16″)
• 558x558x30mm. (22″ x 22″ x 1 3/16″)
• 609x457x30mm. (24″ x 18″ x 1 3/16″)
• 609x558x30mm. (24″ x 22″ x 1 3/16″)
• 609x711x30mm. (24″ x 28″ x 1 3/16″)
• 660x355x30mm. (26″ x 14″ x 1 3/16″)
• 660x482x30mm. (26″ x 19″ x 1 3/16″)
• 660x508x30mm. (26″ x 20″ x 1 3/16″)
• 660x762x30mm. (26″ x 30″ x 1 3/16″)
• 660x863x30mm. (26″ x 34″ x 1 3/16″)
• 685x1016x30mm. (27″ x 40″ x 1 3/16″)
• 711x812x30mm. (28″ x 32″ x 1 3/16″)
• 762x508x30mm. (30″ x 20″ x 1 3/16″)
• 762x863x30mm. (30″ x 34″ x 1 3/16″)
• 762x1016x30mm. (30″ x 40″ x 1 3/16″)
• 914x914x30mm. (36″ x 36″ x 1 3/16″)
• 1219x1219x30mm. (48″ x 48″ x 1 3/16″)
• 1219x2438x38mm. (48″ x 96″ x 1.50″)
• 1828x3657x38mm. (72″ x 144″ x 1.50″)
• Tables available in custom sizes. Please check.

• Vacuum pump
• Vacuum valve
• Vacuum table air supply valve
• Pressure force regulator.
• Pedal
• Stops for positioning products on a vacuum table.
• Extendable vacuum tables
• Plastic (Formica) table top
• Independent vacuum zones controlled by valves.
• Anodized table surface
• The location of the vacuum holes according to the customer's drawing
• Table shape and size according to customer requirements

Q: How can I secure the vacuum table?
A: The table has a 9.5mm bottom and top flange around the perimeter. You can use them for clamps or drill holes for fastening.

Q: Is it possible to use threaded connection for vacuum liner?
Oh yeah. Please indicate the required size.

Q: I already have a vacuum pump. Will it work with your vacuum table?
A: Most likely it will work. In any case, you can order the pump later. If you decide to use your own pump, you can immediately order an adapter/adapter. When ordering, please indicate dimensions.

Q: I work with materials that can be scratched. Is it possible to avoid them when working on a vacuum table?
A: Yes, you can use the switch valve to blow air out of the table. This will have the effect air cushion. Optionally, you can adjust the amount of incoming air. To control the valve you need compressed air pressure min. 4.2 bar.

Q: How much Smooth surface vacuum table?
A: Tolerance no worse than ± 25µm/sq.ft.

Q: How should I secure the table to prevent bending?
A: As a rule, Bottom part The (surface) of the table is flat and parallel to the top, therefore, the table can be mounted on the base of the machine.
When installing the table on a surface, pay attention to the absence of gaps that indicate unevenness of the surface. Use shims to eliminate table wobble due to gaps. Check parallelism. If necessary, use additional spacers to eliminate the possibility of the table bending under pressure and disturbing the plane of the working surface of the vacuum table.

Q: Is there a way to place items on the table in exactly the same place?
A: Yes, it is possible. An optional stop system for product positioning can be ordered. As a rule, these are three steel pins that are “pushed out” from the table while the product is being placed and “recessed” into the table as soon as the vacuum is turned on. It is possible to place more than three pins.

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The manufacturer reserves the right to make changes to the design and specification of screen printing equipment without notice.