Overview
The business
For more than forty years, the Bürener Maschinenfabrik GmbH (bmf) has been providing the industry with products and installations for delivery, filtering and conditioning techniques in addition to parts and plastic parts. The slogan “Technik mit Ideen” (know-how plus ideas) is the order of the day, the 250-strong firm is making increasingly more modern solutions.
The scenario
The machine tool trade requires house-saving solutions. On this foundation, bmf developed the concept of a new cooling lubricant processing installation: the idea is based on a high performance coil-kind vacuum filter straight while in the coolant tank (“soiled tank”). For the immersible pump that is additionally to be put in in the tank, the following load profile was ready: A very compact design, yet with enough performance to attract the cooling lubricant that has been contaminated with chippings and different particles which were worn off within the steel processing operation, via the filter by means of a vacuum. The pump must convey the clear cooling lubricant on to the machine device at the required pressure.
The answer
For the new filter set up, Grundfos, working along with bmf specialists, has developed a brand-new submersible pump model: the SPK two-23/23. So what is just-out about this mannequin?
· Essentially the most noticeable factor is the vacuum adapter for vacuum filtration; these vacuum adapters are actually accessible for all immersible pumps from Grundfos.
· The inlet strainer that’s common in pumps for cooling lubricants is not there as a result of these pumps are at all times placed after the filter and only take in clean medium.
· The pump hydraulics have been further improved: the immersible pumps do not simply draw very properly (as much as -0.4 bar unfavourable pressure is feasible), in addition they bring the clean cooling lubricant to a pressure of as much as 7.zero bar (SPK two-23/23), and a most of 20 bars is feasible (CRK, MTR collection).
· The optionally available Harting plug simplifies the electrical connection of the pump (no electrician required).
And, because of the particular filter expertise on this immersible pump, no pace regulation is required both: because of how they normally work (the filter floor becomes loaded over time, so that higher pace = greater pressure is consistently required), normal filter pumps are sometimes designed with pace regulation. Coil-sort vacuum filters from bmf don’t have any filtering gear and therefore, because of their design, don’t develop into fouled on this manner, so pace management for the filter pump can be distributed with.
The result
The dual perform of the pump has several advantages for the consumer: The purification tank, and the pump to go together with it, which can be often needed are now not required. This compact filter manufacture therefore needsless area, saves money and is it’s additionally extremely low-maintenance. bmf division head, Heinz Ahlke: “the compact installation has confirmed its practicality in a number of reference initiatives while in the machine tool industry. In future we will probably be using the cutting-edge coolant conditioning system throughout the board”.
It was also important that, as a global producer, Grundfos already had its own sales and service group with subsidiaries in additional than 50 countries: “the availability of spare parts is due to this fact en-sured on all of the important markets – our customers, who’re all internationally based mostly, admire that.”
Heinz Ahlke, Head of Division, Chip Conveyors and Filter Systems, Bürener Maschinenfabrik GmbH says:
“Grundfos is certainly in a really wonderful technical place on the subject of immersible pumps and might offer a comprehensive product range. However what is at least as important for me is the availability and competence of the sphere team.”
Grundfos provided
· Progressive answer
· Low-upkeep system
· Compact installation
Pumps used
· SPK 2-23/23 pumps