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Wirtgen 2200 CR

Cold Recycler and Cold Milling Machine

  • Price: Call for price
  • Cold recycler with a mechanically driven milling drum and two-stage material conveying system
  • Front loading discharge conveyor can be slewed to both sides and adjusted in height
  • Travels on crawler tracks
  • Can also be operated as a road milling machine
  • Chassis:
    • Robust welded construction with mounts for the individual function modules and superstructures
    • Tanks for diesel fuel and water are integrated into the chassis
    • Hydraulic fluid tank forms a separate unit
    • Hydraulically opening engine cowling, wide opening servicing doors left and right, and optimum arrangement of the individual components ensure easy access for maintenance and servicing
  • Operator's platform:
    • Walk-through operator's platform with access ladders left and right is located at the center of the machine
    • Equipped with two identical control consoles which can be pivoted and adjusted in height
    • Both control consoles and right-hand driver's seat can be shifted sideways beyond the edge of the machine
    • Both control consoles and the right hand driver's seat can be shifted sideways beyond the edge of the machine
    • The control elements are located within easy reach and within the operator's field of vision
    • The operator's platform includes a display of the Wirtgen information and diagnosis system for monitoring the operating status of the machine
    • The ergonomic sitting position, clear overview, and elastically supported footboards of the operator's platform help to make the operation of the machine simple and convenient. Steering and advance speed are governed by means of electrical proportional control and are operated via joysticks
  • Wirtgen information and diagnosis system and instruments
    • The Wirtgen information and diagnosis system WIDIS 32 provides the driver with quick and comprehensive information on the current status of the engine and the hydraulic system, generating visual and audible alarms, if necessary
    • Data and messages are indicated on a multi-functional display (LC display) at the operator's platform
    • Other information, such as operating hours, engine speed, or filling level of the diesel tank, can be accessed here, too.
    • The hydraulic system is additionally monitored by two pressure gauges which indicate the actual pressures in twelve different areas of the hydraulic system
    • The air filters and the filters of the hydraulic system are monitored electrically
  • Power unit
    • The machine is driven by a modern V 12 engine with a power rating of 671 kW
    • Complies with the stringent requirements of the exhaust emission standards stipulated by the US EPA, Tier I
    • It is equipped with a fully electronic engine management system which allows the engine to automatically adapt to varying ambient conditions, such as changing atmospheric pressure, temperature, or humidity
    • Offers maximum torque stability even at extreme engine loads, preventing breaks in operation
    • Extremely large cooler system effectively cools the engine, allowing the safe operation of the machine even at high outside temperatures
    • Cooling system is also equipped with a fan controller. The fan speed is reduced at low ambient temperatures or low loads, thus reducing the noise emission levels
    • All servicing work on the engine can be carried out from the ground
  • Soundproofing: Noise levels are reduced by the standard soundproofing, which also protects both the operating personnel and the environment against any nuisance due to noise.
  • Milling drum drive:
    • The milling drum is driven mechanically by the diesel engine via a mechanical clutch and power belts acting on the drum gearbox
    • Three power belts with five ribs each ensure optimum power transmission due to their width, and have a long service life
    • The tension of the power belts is automatically maintained by a hydraulic cylinder
  • Milling drum:
    • The milling drum operates in up-milling direction
    • Toolholders accommodating the point attack cutting tools are welded onto the drum body. Special edge segments ensure a clean sharp cut at the edges. Ejectors on the milling drum ensure an efficient transfer of the milled material from the milling chamber
    • Optional: The milling drum can be equipped with the patented and established quick-change toolholder system HT11. In this case, the bottom parts of the toolholders are welded to the drum body and the upper parts secured to the bottom parts by retaining bolts to allow quick replacement
  • Water spray system:
    • The formation of dust clouds at the milling drum during the milling operation is largely prevented by a hydraulically operated water spray system, which also cools the point-attack cutting tools, thus considerably extending their service life
    • Spray nozzles are easily removed for cleaning
    • Refilling is required only occasionally due to the generously dimensioned water tank
  • Gradation control beam
    • The gradation control beam is available as an equipment option, and largely prevents the asphalt from breaking into large slabs
    • At the same time, the position of the gradation control beam has an influence on t he size of the milled material
    • The gradation control beam additional protects the primary conveyor against premature wear and tear
  • Cutting tool replacement: The scraper blade opens hydraulically to provide good access to the milling drum for the replacement of tools, which can be carried out in a comfortable working position
  • Material guiding system:
    • System of guide plates directs the milled material, which may be enriched with a binding agent, between the rear crawler tracks of the machine
    • The front drum door, through which the material is normally loaded during the milling operation, is hydraulically closed by means of a flap
  • Cold recycling system:
    • Injection system for water or binding agents:
      • The standard injection system consists of a microprocessor-controlled metering unit, an eccentric pump, and an injection bar with 12 nozzles and feeding device
      • The pump delivers the liquid additive (e.g. water or bitumen emulsion) from a tanker truck or, in case of water, from the integrated tank of the machine to the injection bar
      • The eccentric worm pump has a maximum delivery rate of 800 l/min
      • A flow meter monitors the delivered quantities and transfers the data to the microprocessor control, which in turn regulates the process in accordance with the pre-selected parameters and monitors the advance speed as well as the added quantities of binding agents or water in percent by mass and litres per minute. The operating console for the microprocessor control unit can be positioned either at the operator's platform or at the rear left of the machine to allow operation from the ground
      • Automatic shut-off device enables the individual nozzles to be opened and closed by means of hydraulic cylinders, thus allowing the addition of binding agents to be effectively adapted to the working width
      • The nozzles are cleaned automatically
    • Injection system with second injection bar: An additional injection bar can be integrated for the purposes of adding a water-cement slurry from a preceding slurry mixer with integrated pump
    • Injection system with second pump
      • A second pump can be integrated to facilitate the simultaneous addition of water and bitumen emulsion into the mixing chamber
      • The addition is governed by means of a microprocessor-controlled metering unit
    • Injection system with second pump and second injection bar: This specification uses separate pumps to feed two different agents into the mixing chamber. Alternatively, one pump can deliver water or bitumen emulsion, while the second injection bar is connected to a preceding slurry mixer
    • Injection system for foamed bitumen
      • Comprises a pump and injection bar for foamed bitumen
      • Foaming takes place in special expansion chambers in the injection bar
      • The hot bitumen is delivered by an electrically heated gear pump and subsequently filtered
      • A flow meter registers the delivered quantity of bitumen
      • The addition of water and air, which are necessary for the foaming process, is governed in accordance with the bitumen quantity
      • The system is equipped with a test nozzle to permit checks of the bitumen quality during the foaming process
      • A second injection system is provided for the addition of water to achieve the optimum moisture content of the mixture. It consists of an eccentric pump and an injection bar for water. The water can be supplied from either the water tank of the machine or from a preceding water tanker. Alternatively, a cement water slurry can be injected from a preceding slurry mixer
  • Spreading auger
    • The centrally divided spreading auger withs scraper is equipped with high-strength interchangeable segments
    • Both sections of the spreading auger can rotate in clockwise or anti-clockwise direction
    • The speed of the auger is infinitely variable, and it can be infinitely adjusted in height by means of hydraulic cylinders
  • Variable screed
    • The variable screed with tamper (working width 2.0-3.75 m) places and pre-compacts the processed material true to line and level
    • Levelling of the screed is effected by means of hydraulically operated spindles left and right. The entire screed can be raised hydraulically for transport purposes
  • Crawler track units/Height adjustment of the machine
    • The crawler tracks are suspended from the chassis by means of cylindrical columns with hydraulic height adjustment
    • The milling depth is adjusted via the two front columns, while the rear crawler tracks act as a full floating axle.
    • The large stroke provides a large ground clearance
  • Travel drive
    • The cold recycler is equipped with large crawler tracks (5 HD) lined with polyurethane track pads
    • Each crawler track is driven by its own hydraulic motor
    • The travel drive motors are fed by a common hydraulic variable displacement pump
    • The desired tension of the crawler tracks is set and maintained hydraulically
    • The crawler tracks are driven automatically, thus dispensing with the need to change between milling and travel gear
    • The speed can be infinitely varied from zero to maximum speed
    • A switchable hydraulic flow divider acts as a differential lock and ensures uniform traction even under difficult conditions
    • Any speed once driven can be saved in a Tempomat speed control and re-set, for instance, after a stop
  • Automatic power control: The machine is equipped with an automatic power control which governs the advance speed in accordance with the engine load, but can also be deactivated
  • Steering:
    • The machine has a finger-light hydraulic all-track steering system, which can be operated from both the right or the left side of the operator's platform
    • It is governed by means of proportional control, and the front and rear tracks are steered separately via joysticks
    • The steering function is detached from the height adjustment by specially designed steering rings
    • Tight locking angles permit an extremely small turning clearance circle
  • Brake system: Braking is achieved by the self-locking hydrostatic transmission. The cold recycler is additionally equipped with two automatic multiple-disk parking brakes at the front
  • Loading the milled material:
    • When used as a cold milling machine, loading of the milled material from the milling chamber on trucks is effected to the front (front loading) by means of a wide conveyor system consisting of a primary conveyor and a discharge conveyor.
    • The discharge conveyor is covered to prevent clouds of dust being blown away by the wind and causing a nuisance. It can load trucks from a great height, is height-adjustable and can be slewed to both sides. The high conveying speed and 1,100 mm wide, V-ribbed steep-incline belts ensure that the material is quickly removed from the drum housing
  • Milling depth control/Automatic levelling system
    • The cold recycler is equipped with an electronic automatic levelling system for milling depth adjustment.
    • It is governed by means of proportional control, meaning that changes in the reference plane are compensated quickly and without overshooting of the machine
    • The reference planes can be scanned by various methods, for instance, by means of a wire rope sensor at the side plates, an ultrasonic sensor on the existing road surface, a grade-line in combination with rotary transducers, or a plane formed by lasers
    • Optional: A slope control sensor
    • Optional: The Multiplex system is an equalizing system for longitudinal levelling and can be integrated into the automatic levelling system
  • Hydraulic system:
    • Independent hydraulic systems for travel drive, conveyor belts, cooler fan drive, paving unit, water spray system, and setting functions
    • Hydraulic pumps are driven by the diesel engine via a splitter gearbox
    • The entire system is filtered via a return-flow suction filter
    • The oil for the cylinder functions is additionally passed through a pressure filter
  • Electrical system: 24 V electrical system with starter, 3 phase alternator, and two 12 V batteries, as well as socket outlets for lamp
  • Filling: Water is filled via a C-pipe connection or a large filling port. Diesel fuel is filled via a large filling port
  • Safety features:
    • The machine can be securely lashed on a low-bed trailer or loaded by crane with the aid of lashing lugs
    • The comprehensive working and safety lights and a freely positionable lamp with magnetic pedestal provide sufficient illumination, thus ensuring the machine can be operated safely, even in inclement weather
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