Product Name: Schenck Horizontal Dynamic Balancing Machine Hm20bu-H Model NO.: HM20BU-h Power Source: AC220V Weight: 100-500Kg Control: Computer Control Display: Digital Type: Vibration Testing Machine High Precision: Universal Application Modular Design: High Initial Unbalancing Value Permit Simple and Precise Measuring Unit: Flexible and Dynamic Drive Unit Trademark: Schenck Transport Package: Plywood Case Specification: Schenck Origin: Shanghai HS Code: 903190010 Product Description Why Balancing?1) Balancing enhances and creates quality!Unless it is corrected, the effect of unbalance will often only become noticeable in the finished product. If rotors are not balanced, they can cause undesired or even dangerous vibrations. They can also diminish the practical value of a machine, cause damage to the bearing, or fractures to the casing, suspension or foundation. Excessive noise and vibration may also irritate or annoy the user and lead them to conclude that the product is of poor quality. Thus, a product that is free from noise and vibration is always a sign of quality, precision and craftsmanship.2) Increasing demand!More sophisticated technical development have lead to constantly increasing requirements with regard to balancing quality. Higher performance for applications such as high-speed tool spindles, electric motors, turbines, fans, universal joint shafts or paper rolls simply mean higher speed. The trend is clear, and in order to meet these requirements precision balancing is essential. Accurately balanced rotors allow us to safely reach higher speeds and deliver considerably higher performance.Typical applications:Auto: crankshaft, drive shaft, brakes, pulley, armatureAerospace: generator, motor, transmission shaft, APU accessories, wheel Blowers / Compressors / Turbine: ventilator, blower, compressor, turbineMotor: electromotor, generatorMachine tool: machanical spindle, electric spindle, tool shank, grinding wheelPump: centrifugal pump, double suction pump, mixed flow pump, axial flow pumpPapermaking: drum dryer,pressing roller, guide rollerTextile: spinning cup, split wing, spindle, combing roller,slotted drum, carding machine rollerRailway / Vessel: electric motor, blower, marine crankshaft, turbocharger, wheel, train wheel pairHorizontal Hard-bearing Balancing Machine HM20BU-hTECHNICAL DATA (basic data) provided the rotor weight is equally shared between the two bearings, rotor weight Wper bearing pedestalMax.Max.120 kg60 kgRotor weight(as long as an accommodation of the rotor is possible due to the geometric data and the minimum achievable residual unbalance is sufficient for the balancing task.)Min.unlimiteddistance between bearing centers(750 mm length machine base)distance between bearing centers with belt driveMax.Min.Min.640 mm50 mm140mmrotor swing diameter above the machine baserotor swing diameter within the motor rangeMax.Max.800 mm580 mmjournal bearing diameterMax.Min.70 mm9 mmBelt driving diameter20-300 mmBalancing speeds based upon 60 mm belt driving diameter approx.(With other belt driving diameters, the speeds change accordingly. In addition, the speed range of the measuring unit must be taken into account. See item 2) 210-2100 / 310-3100 rpmWn2-value for permanent calibration Wn2 = 180x106kg/min2Umar Minimum achievable residual unbalance (*according to ISO2953)-each bearing plane 0.1 gmm per kg rotor weight-but not better than the maximum measuring sensitivity of the measuring unit 1.6 gmm(* This value is refering to the measuring speed of 1000 rpm with CAB708, also influenced by the rotor characteristics and support bearing. see specification of the measuring unit)Unbalance reduction ratio (URR)≥ 95%Note:The above mentioned data (especially the accuracy data) not means can be achieved the customer rotors, please find the definitions according to ISO 2953 or related international regulations.The drive power chosen out is relative with the work pieces, due to the diversity of out-structure, moment of inertia and wind influence of different rotors, which means not all the biggest rotors can reach the balancing speed as we expected.EXTENT OF DELIVERY: (basic delivery scope)1 Machine base 750mm2 Bearing pedestals1 Underslung Belt Drive(BU)1 Reference pickupAccessories:Connect cables, tools, balancing plasticine, 1 set of technical documentation.Language:Technical documentation and lettering of the machine in English or Chinese.Electrics:3-phase, normal voltage 380 Volt ± 10%, frequency 50 Hz. (Special design on request.)Colour finish: According to SCHENCK standard