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Schenck Shanghai Machinery Corp. Ltd.

Balancing Machine, Balancer, Schenck manufacturer / supplier in China, offering Schenck Horizontal Hard-Bearing Balancing Machine Hm20bu-L, Schenck Vertical Semi-Automatic Balancing Machine, Schenck Horizontal Balancing Machine (AB Comfort) and so on.

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Schenck Horizontal Hard-Bearing Balancing Machine Hm20bu-L

FOB Price: US $20,000-100,000 / Set
Min. Order: 1 Set
Min. Order FOB Price
1 Set US $20,000-100,000/ Set
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Production Capacity: 300 Per Quartal
Transport Package: Plywood Case
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: HM20BU-I
  • Display: Digital
  • Weight: 100-500Kg
  • High Precision: Universal Application
  • Simple and Precise Measuring Unit: Flexible and Dynamic Drive Unit
  • Specification: Schenck
  • HS Code: 903190010
  • Type: Vibration Testing Machine
  • Control: Computer Control
  • Power Source: AC220V
  • Modular Design: High Initial Unbalancing Value Permit
  • Trademark: Schenck
  • Origin: Shanghai
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, armature
Aerospace:         generator, motor, transmission shaft, APU accessories, wheel
                           Blowers / Compressors / Turbine: ventilator, blower, compressor, turbine
Motor:                 electromotor, generator
Machine tool:      machanical spindle, electric spindle, tool shank, grinding wheel
Pump:                 centrifugal pump, double suction pump, mixed flow pump, axial flow pump
Papermaking:     drum dryer,pressing  roller, guide roller
Textile:                spinning cup, split wing, spindle, combing roller,slotted drum, carding machine roller
Railway / Vessel: electric motor, blower, marine crankshaft, turbocharger, wheel, train wheel pair

Horizontal Hard-bearing Balancing Machine HM20BU-l

TECHNICAL DATA (basic data)

provided the rotor weight is equally shared between the two bearings, rotor weight  W
per bearing pedestal

120 kg

60 kg
Rotor 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.)
distance between bearing centers
(1 500 mm length machine base)
distance between bearing centers with belt drive
1 330 mm
50 mm
130 mm
rotor swing diameter above the machine base
rotor swing diameter within the motor range
1 260 mm
450 mm
journal bearing diameterMax.
70 mm
9 mm
Belt driving diameter 20-450 mm
Balancing 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  rpm
Wn2-value     for permanent calibration Wn2 = 180x106kg/min2
Minimum achievable residual unbalance (per plane) emar= 0.1 gmm/kg
but not better than Umar=1.6 gmm
(based on CAB708 at apprx. 1000 rpm. For different measuring unit, multiplied by a factor)
Unbalance reduction ratio (URR) 95%

Extent of Delivery: (basic delivery scope)

1     Machine base

2     Bearing pedestals

1     Underslung Belt Drive (BU)

1     Reference pickup

Connect cables, tools, balancing plasticine, 1 set of technical documentation.

Technical documentation and lettering of the machine in English or Chinese.

3-phase, normal voltage 380 Volt ±
10%, frequency 50 Hz. (Special design on request.)

Colour finish:
according to SCHENCK standard

Schenck Horizontal Hard-Bearing Balancing Machine Hm20bu-L
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