controlube minimal quantity lubrication system

ControLube minimal quantity lubrication system

Version 03-2016

Areas of application

In contrast to wet coolant lubrication, with minimum quantity lubrication (MQL), only a little lubricant (approx. 5 – 50 ml/h) is used. Most production processes with geometrically-determined cutting such as cutting, turning and drilling can be executed with MQL. All common metals can be processed. The ControLube MQL system is ideal if at least one of the following criteria applies: mass production, drilling of deep holes, thread formation, high speeds, many tools, small tools, monolith tools, transfer lines, automotive, aerospace, tool/mold construction.

Minimal quantity lubrication

Properties

Function

1 Generates fine and homogeneous aerosol

Oil (high-pressure)

MQL system

Compressed air

Mixing chamberInjector

2 Simple process changeover wet machining <—> MQL

Function description

The MQL system conveys air and oil in separate lines into the mixing chamber. It is just in front of the spindle rotary feedthrough. An injector sprays the oil in under high pressure. It mixes with the air fed in to form a fine aerosol. The oil/air mixture then streams through- the rotary feedthrough,- the fixed spindle tube,- the tool holder,- the tooland escapes through the coolant channel in the tool to the processing point.

Per processing operation, the programmer can spe-cify either the air pressure or the air quantity, in addi-tion to the oil quantity. There are 2 control possibili-ties for each:1) The air pressure remains largely constant during the processing2) The air quantity remains largely constant (ideal for deep hole drilling) during the processing


Spindle tube Tool

Spindle Air/oil mixture (aerosol)

3 Even oil distribution in all tool outlets

4 Larger quantities of oil can be set (regardless of the plant tool size)

5 Quick response time on program change

6 Complete network air pressure available

7 Supplies up to 4 spindles simultaneously

8 No special tool components required (analogous to single-channel)

Mixing chamber with injector and machine valve

MQL system


Features

Unique selling points User benefits

Microprocessor control with live monitoring - Quick and precise dosing - Great process reliability

Calibrated high-pressure injection technology No recalibration necessary

Integrated air pressure increase up to 20 bar Improved chip transport and secure lubrication for small tools

Air pressure and oil quantity can be controlled separately, also need-based

- Great resource efficiency - Great process reliability - Short processing times

Direct machine connection via ProfiNet or ProfiBus

- Quick and variable NC programming - Little adaptation effort - Very user-friendly

Fixed spindle tube, therefore no influence of the centrifugal force on the aerosol

Highest speeds possible

Model Max. output air pressure

ControLube 3005 5 bar



Equipment

MQL system with sheet metal housing ●

Supply lines ●

Mixing chamber with injector and machine valve ●

Spindle tube with lock nut and bearing ●

Aerosol distributor for several spindles ●

Automatic tank filling ●

Wheels or bases for sheet metal housing ●

● Basic equipment ● Option

ControLube unites the advantages of the previously-common single- and dual-channel MQL systems (see properties). In addition, this innovative technology offers special features with great user benefits.


540 88

394

ø 80

177

110

0

648 436

2733

12

Specifications

Output air pressure* 0 – 20 bar (with a network air pressure of at least 5 bar)

Injection oil quantity 0 – 400 ml/h

Max. air quantity* from 0 – 5 bar: 1000 l/min from 5 – 10 bar: 1000 – 300 l/min from 10 – 20 bar: 300 – 100 l/min

Max. oil viscosity* 100 mm2/s

Air purity class according to ISO 8573-1:2010 [7:4:4]

Machine interfaces ProfiBus, ProfiNet, BCD, Analog 0 – 10 V (optional)

Power supply 115 – 230 V

Content of oil tank 12 l

* Higher values on request

MQL system Mixing chamber with injector and machine valve

KNOLL Maschinenbau GmbHSchwarzachstraße 20, DE-88348 Bad SaulgauTel. + 49 (0) 75 81/20 08-0, Fax + 49 (0) 75 81/20 [email protected], www.knoll-mb.de

Standard dimensions

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controlube minimal quantity lubrication system

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