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RH6.5 Prospekt (3).pdf

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Crawler Excavator Specifications RH 6.5 Service weight 20.6 – 23.1 t Engine output 113 kW Trenching buckets up to 1.45 m3 (SAE) ã PMS three-pump hydraulics ã Electronic control and monitoring system ã Noise insulated, deluxe cab ã Low noise and emission values ã Very
  Crawler ExcavatorSpecifications Service weight20.6 – 23.1tEngine output113kWTrenching buckets up to 1.45m 3 (SAE) ãPMS three-pump hydraulicsãElectronic controland monitoring systemãNoise insulated, deluxe cabãLow noise and emission valuesãVery low fuel consumption RH 6.5  2 Power and speed: the new RH 6.5 New geometry Fast work cyclesExtended leverage foradded forcesAnti-burst device safely protected between thecylindersSealed bucket mountGenerous workingrange for stick andbucketThree stick lengths,various buckets andattachmentsNew regenerative circuit for boomand stick cylindersZero-energy lowering of attachmentOptimum lowering speed for attachmentFuel savings through improved efficiency   3 Outstanding precisioncontrollability Automatic valve cap ventingPreheating of control valvesNew coolant systemNew cooling air routingHeat exchange throughexternal combined radiatorPowerful Cummins dieselLow engine RPM for extendeddurability Rugged design engineered for con-struction machinery applicationsO&K track cleaning and guide shoe(optional) CE symbol according to ECMachinery DirectiveTÜV certificate for compliancewith DIN ISO EN 9001Lifting gear permitted with in-stalled anti-burst and overloadwarning devices Final drives protected within the crawler profileLC or HD undercarriage for excellent lift capacity and punishing applicationsAutomatic up/down shifting  4 The RH 6.5 is remarkable for its newly designed geometry.Slim cylinders as well as extended lift and leverage armsand higher operating pressure boost hydraulic performancefor added speed and power. Outstanding dump angle andworking range complete the picture. The anti-burst deviceis protected between the cylinders. Precise end-of-stroke dampingRegenerative circuitfor faster lowering The stick and boom cylinders come with a regenerative cir-cuit. Pump output is not required for lowering the boom.The unused power is then available for other functions.In this way, lowering speed is enhanced and fuel consump-tion cut.The new end-of-stroke damping system with self-regulatingthrottle eliminates punishing piston impact. This protectsthe basic unit, reduces wear and increases durability. Fast and powerful,the geometryOutstanding precisioncontrollability The valve caps are continuously and automatically ventedto ensure perfect activation of the spools and hence out-standing precision controllability.The valves and the servo-control levers are preheated withoil from a separate hydraulic circuit to give smooth control-lability immediately after start-up. No delays caused by coldoil.
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