Go back

HM 20 - HM 30

Horizontal Balancing Machines

  • Universally applicable
  • High balancing accuracy
  • Easy upgrading through modular structure and a wide range of accessories
  • Hard-bearing principle ensures fast change-over
  • Measuring instrument CAB 820, optional CAB 920 - the high end solution
  • Extensive safety equipment for all protection classes

Special features

  • Easy to operate – hard-bearing principle eliminates the need for calibration runs
  • Provides for correction in two planes or separate according to static and couple unbalance
  • Rotors can be mounted on their original shafts or on mounting arbors, optionally with mounted anti-friction bearings
  • Angle indexing display in case of belt drive
  • Automatic measuring cycle with infinitely variable settings for acceleration, measuring and braking time
  • Upgradeable by many additional modules e.g. for mass correction
Design

Range of application

Universal balancing machines series HM enable precise balancing of a wide spectrum of rotors. They are suitable for cylindrical rotors having their own shaft journals and for balancing disc shaped rotors on balancing arbors.

Permanent calibration, ergonomic design and a logical operating sequence facilitate operation.

A modular design principle and a wide range of accessories make the machine highly flexible.

Schenck universal balancing machines series HM are a highly efficient investment, both for one-off rotors and for small batches.

Sequence of operations

  • Manually load work-piece on the bearing pedestals, close hold-down bearings and connect drive (belt drive or drive shaft).
  • Close protection device and start automatic measuring sequence:
  • Acceleration, determination and display of the unbalance on the measuring instrument, brake. The readout is retained on the measuring instrument even after the measuring run has ended.
  • Open protection device, manually correct unbalance (if required).
  • Check correction result (with measuring instrument displaying whether the tolerance has been achieved) and unload the rotor from the machine.
Technical data
Technical data at a glance    HM 20  HM 3  HM 30 
Measuring unit    CAB 820  CAB 820  CAB 820 
Roller carriages    •  •  • 
Underslung belt drive BU    •  •  • 
End drive 2)      •  • 
Protective device as per ISO 7475 5)    •  •  • 
Rotor         
Weight, max.  [kg]  100  300  700 
Diameter, max.  [mm]  1260  1260  1260 
Bearing distance, max. 2)  [mm]  1330  1330  1330 
Bearing journal diameter 2)  [mm]  9 - 140  9 - 140  10 - 160 
Machine         
Width A 1)  [mm]  2250  2250  2250 
Depth B 1)  [mm]  1650  2250  2250 
Height C 1)  [mm]  2000  2000  2000 
Balancing speed, min.  [min -1]  120  120  120 
MARU 4)  [gmm]  1,6  2,0  3,0 
Air pressure  [kPa]  600  600 
Power supply 3)  [V]  400 3)  400 3)  400 3) 
Drive power  [kW]  1,1  2,2  2,2 
Sound Pressure Level (with belt drive)  [LpA [dB(A)]]  60 - 70   60 - 70   60 - 70  
         
Basic machine  Order-Nr.  R0060400.02  R0060500.02  R0060600.02 
Options         
Measuring unit CAB 920  Order-Nr.  R0060401.01  R0060501.01  R0060601.01 
Software options    o.r.  o.r.  o.r. 
Angular roller bearings    •  •  • 
Overslung belt drive BK    •  •  • 
Various roller carriages    o.r.  o.r.  o.r. 
Report printer  Order-Nr.  R0060405.01  R0060505.01  R0060605.01 
Mass correction system  Order-Nr.  o.r.  o.r.  o.r. 
         
1) Data non-binding, depending on the respective equipment         
2) Other data upon request         
3) Mains configuration: 3 / PE AC 500Hz 400 V +6 / -10%         
4) Minimum achievable residual anbalance per balancing plane         
5) Up to HM 10 with protection class C, in all other cases protection class B         
o.r. On request         

Cookies enable the best possible provision of our services. By using our pages and services you agree that we use cookies. Link to the Schenck RoTec data protection declaration