Vacuum pumps for CNC machines
Vacuum clamping of elements on the CNC machine tool table
Vacuum pumps - devices used to remove gases (create a vacuum) in a closed space.
The most important parameters of vacuum pumps are: final pressure, pumping speed and capacity. An important feature of any pump is the maximum pressure that can exist at its outlet. There are pumps operating at atmospheric pressure and requiring initial vacuum.
Busch MINK vacuum pumps
● Final pressure: 20 - 200 hPa (mbar)
● Overpressure: 2.0 bar (g)
● 50 Hz pumping speed: 40 - 950 m³ / h
● Pumping speed 60 Hz: 40 - 1150 m³ / h
Dry claw vacuum pumps MINK.
Thanks to its innovative design, the MINK claw technology combines efficiency, reliability and efficiency. It can be used to generate vacuum and compressed air. The dry and contactless operating principle offers the advantage of virtually maintenance-free operation.
Vacuum pumps are ideal for industrial applications where constant vacuum or overpressure and oil-free operation are critical.
How it works
MINK claw vacuum pumps and compressors are equipped with two fang-shaped impellers. The rotors mounted in the housing move in opposite directions. The shape of the claw rotors enables drawing, compression and removal of the pumped medium. The minimum clearance between the rotors and the chamber housing optimizes the internal tightness and internal sealing. As a result, there is no need for lubricants or operating fluids in the compression chamber. MINK vacuum pumps and compressors are driven by a motor mounted directly on the flange. The synchronizing gearbox ensures precise synchronization of the rotors.
Piab vacuum pumps
Piab vacuum pumps are based on the patented COAX® technology. COAX® is an advanced solution for creating negative pressure using compressed air. Based on multi-stage technology, Piab COAX® cartridges are smaller, more efficient and more reliable than conventional ejectors and allow the design of a flexible, modular and efficient vacuum system. A vacuum system based on COAX® technology can deliver three times the vacuum flow than conventional systems, allowing you to increase speed with high reliability while reducing energy consumption.
High-efficiency pumps (comparable to electromechanical pumps up to 4 kW [5 HP]) that can further reduce energy costs by up to 40%
P6040 100 m3/h / 160 m3/h / 240 m3/h
● Patented COAX® technology.
● Available with three-stage COAX® MIDI cartridge.
● Relatively low air consumption.
● Modular design for easy assembly.
● Compact and durable with no moving parts.
● 5-16 cartridges.
● Energy-saving thanks to COAX® technology.
● High vacuum flow - 6 pcs. COAX® MIDI Si cartridges.
● Small, compact pump with low weight.
● Easy to assemble and install on a vacuum line.
● Integrated hose connections.
A wide range of filter types with varying degrees of filtration. A wide range of pneumatic, electric, electronic vacuum switches in fixed and adjustable versions. Reliable quick release function for faster response times Low opening pressure Flow dampers to prevent throttling and reduction of pump performance.
Benefits of using vacuum in the CNC machining process
What is vacuum clamping?
During vacuum clamping, a vacuum is created under the workpiece - a pressure difference is created which presses the workpiece against the clamping plate. Thus, the workpiece is pressed against the vacuum table, and not - as is incorrectly believed - sucked. The force shifting the workpiece depends on the surface structure, pressure difference and the surface area affected by the vacuum. the greater the area covered by the vacuum, the stronger the retaining forces.
Vacuum clamping systems are primarily used in the wood, plastic and non-ferrous metal industries. They enable quick and easy processing and are compatible with CNC machine tools. There, the vacuum technique is used in conjunction with special handling systems, e.g. to fix an aluminum plate in one position and allow it to be processed from all sides. this increases the efficiency and economy since this type of fastening does not cause any damage to the workpiece and saves a considerable amount of time and effort compared to having to set up the workpiece in a traditional way. Newer clamping systems allow for the rapid exchange of tips of various sizes and shapes, making it possible to flexibly adapt the device to workpieces of the most different shapes
Use of vacuum:
- for fixing turtle elements on the work table,
- by vacuum grippers, suction cups
In industrial robots, they supply vacuum grippers that lift and move both small items, e.g. chair elements, and heavy items such as furniture boards or models. The vacuum clamping system options have been developed for optimal material holding on the table. Multiple pumps are often used for very large tables and in applications that require additional clamping force.
Advantages of ejector pumps
The greatest advantage of ejector vacuum pumps is their maintenance-free operation. An ejector pump is just one or more nozzles through which air flows, creating a vacuum. Such a pump has no moving parts that could wear out during operation, and does not require lubrication. The only service you need to perform is cleaning the nozzles.
Another advantage of ejector pumps worth mentioning is the possibility of modular construction. The smallest pumps consist of one ejector, but they are easy to connect with each other on one rail and freely configurable.
Oil-free vacuum pumps
This is another proposal in the vacuum technique that allows you to carry out a perfectly clean process. Oil-free pumps use innovative solutions, thanks to which the pumped gas does not have any contact with the bearings and the drive system, while offering hermetic tightness. As a result, the bearings are lubricated with typical greases that have much better properties than vacuum greases, which does not affect the quality of the vacuum. That is why oil-free pumps are readily used to obtain a vacuum under laboratory conditions in the chemical and pharmaceutical industries.
Vacuum oil pumps
These are rotary pumps with a very wide range of applications. They are used, among others in automotive, metallurgy, metallurgy, refrigeration and food packaging. The most important advantages of oil vacuum pumps include reliability, extremely quiet operation, easy operation and maintenance, as well as very high efficiency at low operating costs.