High-pressure system combiloop CL4G-600

A STANDARD - HIGHLY CUSTOMISABLE UP TO 150 L/MIN. AT A MAXIMUM OF UP TO 300 BAR

Do you need high rinsing performance? Do you also have fine chips and a high level of contamination on the machine? Is the highest surface quality your standard? Then the combiloop CL4 G is a must. The CL4 G-600 offers you a clean tank with a capacity of 600 litres in the comfort range, which contributes to a stable behaviour of the medium and a more uniform temperature environment. The standard version features full-flow filtration and, thanks to its clever modularity, can be perfectly customised to meet your requirements in terms of process-reliable filtration, rinsing performance and cooling. In the full expansion stage, for example with an integrated active cooler up to 7.5 kW, pressure control and up to three freely combinable high, medium and low pressure pumps, it is in the top class in terms of space utilisation and performance. And not to forget: it also looks good!

Already in multiple use worldwide on machine tools from the following manufacturers:
Benzinger, Biglia, Brother, Bumotec (Starrag), Chiron, Citizen, DMGMORI, Fanuc, Hermle, Index, Kitamura, Manurhin, Mazak, Nakamura, Okuma, Pfiffner, Schütte, Star, Tornos, Traub, Tsugami, Willemin-Macodel, and many more.

TECHNICAL DATA

CharacteristicVersion
Equipment
  • Size 1,765 x 863 x 2,000 mm (L x W x H), maximum weight approx. 700 kg
  • < 300 bar, eco+ pressure-regulated piston pump, 600-litre clean tank, electric control unit
  • Power supply 3∼/PE 400 V/50 Hz
  • Full-flow filtration
Flow rate depending on configuration
  • High pressure 9-80 l/min
  • Medium or low pressure up to 140 l/min, depending on configuration
Pressure (some configuration examples, extract only)Two pumps:
  • 210 bar max. at 12 l/min. and 4.0 kW drive power + 120 l/min. Low pressure at 2.5 bar
  • 150 bar max. at 20 l/min. and 5.5 kW drive power + 100 l/min. Low pressure at 2.5 bar
Three pumps:
  • 210 bar at 12 l/min. and 4.0 kW drive power + 70 bar at 40 l/min. and 5.5 kW drive power + 80 l/min. Low pressure at 2.5 bar
  • 2 x 70 bar at 40 l/min. and 5.5 kW drive power + 60 l/min. Low pressure at 2.5 bar
  • 70 bar at 40 l/min. and 5.5 kW drive power + 25 bar at 60 l/min. and 4.0 kW drive power + 40 l/min. Low pressure at 2.5 bar
Filter / filter fineness
  • Automatic filter: 40 μm in full flow, sludge removal in strainer basket, 150 μm
  • Electronic clogging indicator
Operation
  • Cutting oil (eco+ high-pressure pump as pressure-regulated piston pump)
  • Water emulsion (min. 8 % oil content, eco+ high-pressure pump as speed-controlled fixed displacement pump)
Service connections
  • Up to 10 controllable service connections
Electrical interface
  • Dual-channel monitoring in accordance with machine safety guidelines for all common machine tools with their own control intelligence
Features
  • Flow sensor as standard
  • Advance warning for filter change
  • Cooling: full and bypass flow
  • Clear, modern function visualisation via LED colour coding system
Options
  • Frequency inverter
  • Mechanically pressure-controlled high-pressure outlets
  • Pressure control via the machine programme
  • High-pressure pump also available as a screw pump on request
  • Post-filtration down to 6 µm for individual tools
Degree of machine contamination
more
Our recommendation for:



 
  • Low degree of contamination (e.g. free-cutting steel, coarse chips, few fine chips)
  • Medium degree of soiling (e.g. free-cutting steel, stainless steel, mixed fine/coarse chip ratio)
  • High degree of contamination (e.g. aluminium, brass, cast iron, titanium, mainly fine chips from finishing and milling operations)
  • Ultra-fine contamination over the entire machining process (graphite machining, ultra-fine finishing, high volume of sludge, high proportion of grinding processes)

ADVANTAGES AND HIGHLIGHTS


eco+ Dynamic Power Concept

  • Infinitely variable high pressure in the control range from 0 to 80 l/min; high energy efficiency
  • Ideal control pump concept for maximum flexibility
  • Low heat input
  • Reliable processing
  • Reduction of rejects, increase in output quality
  • Better ecological footprint
  • Reduction in operating and electricity costs
  • High-quality, durable pumps

Full-flow filtration in the smallest space

  • Automated production thanks to low-maintenance automatic filter; sustainable
  • Full-flow filtration
  • Sludge discharge into integrated sludge box (emptied during operation and a maximum of once per shift)
  • No consumables, no hazardous waste

Clever modular system with the highest standards

  • One system concept - all processes
  • Up to three high-pressure pumps or a combination of high, medium and low pressure
  • Industry 4.0 safety features to prevent machine downtime
  • Safety: flow monitor as standard
  • Plate heat exchanger (cooling) inside (option)
  • Highly compact active cooler up to 7.5 kW inside or can be retrofitted at any time (option)
  • Serves all common cooling lubricants

Ingenious, well thought-out design

  • Medium-free, automatic filtration without filter change
  • Accessibility: high operating and service ergonomics
  • Lightweight, removable inspection panels: extremely compact installation
  • Smallest footprint in the performance class
  • Large 600-litre clean tank
  • Safety, professionalism, durability

FUNCTION

Baugruppenzeichnung der Hochdruckanlage combiloop CL4 G von Müller Hydraulik
Baugruppenzeichnung der Hochdruckanlage combiloop CL4 G von Müller Hydraulik

Caption:

  1. Clean tank
  2. Centrifugal pump for filter circuit
  3. Self-cleaning automatic filter (optional)
  4. Sludge box with collecting sieve basket for filter sludge
  5. Return pump, sludge box (option)
  6. Off-line filtration (option)
  7. eco+ high-pressure pump with regulating pump technology / low-pressure pumps (according to pump configuration)
  8. Valve block with switchable outlets
  9. Cooling circuit pump (option)
  10. Cooling system / plate heat exchanger (option)
  11. Drain tap
  12. Electric control unit with touch panel for system operation
Function and description of the combiloop CL4 G-600 high-pressure system
The combiloop CL4 G-600 is a high-pressure system that can be used for a wide range of applications. Mounted on a clean tank with a capacity of 600 litres, the pump systems can work as a full-flow filtration system in combination with the best possible filtration system. The system is completely enclosed in a modern, metallic design to protect it from dirt and external influences. A maximum of three supply pumps, consisting of a high-pressure and low-pressure pump, are installed. A pressure-regulated pump is used to generate high pressure. It supplies the consumable tools in the machine with exactly the volume flow that they require at the preset working pressure for the respective machining operation. This enables efficient energy utilisation and avoids additional heat generation (eco+). The desired working pressure is infinitely adjustable. The cooling lubricant is delivered to the consumers in a targeted manner via direct or switchable high-pressure outlets.

The cooling lubricant is drawn from the machine tank by a dirt-resistant filter feed pump and fed into the clean tank via a self-cleaning automatic filter. The filter is cleaned automatically via the measured differential pressure. The dirt collects in the integrated sludge box with filter basket, which must be cleaned occasionally by the operator. This cleaning process can be carried out during the ongoing production process without having to stop the machine.

A liquid cooler specially developed for this system cools down the cooling lubricant depending on the technical possibilities and ambient temperature in order to keep the temperature stable. A factory cold water connection is not required. A return pump transports the medium from the sludge box back into the machine tank. Thanks to the electrical control system, the system can be operated autonomously.
  Components of the device
  • Basic tank with system structure
  • Centrifugal pump for pumping the contaminated medium
  • Clean tank with a capacity of approx. 600 litres
  • Fill level sensor
  • 2x pressure-regulated eco+ high-pressure pumps (infinitely adjustable)
  • 1x low-pressure pump (constant pump)
  • Self-cleaning automatic filter 40 µm separation efficiency
  • Sludge box with 150 µm filter basket
  • Liquid cooler 7.5 kW (integrated)
  • Return pump
  • Electrical clogging monitoring of the filter
  • Electrical control unit
  • 5 m connection cable

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