DYNAMIC BALANCING MACHINE MODEL- HDCM

Machines model HDCM are belt driven horizontal type photo scanning Universal Hard Bearing
Balancing Machine, provided with microprocessor based measuring panel HDCM – 8500 suitable
for balancing different shapes of rotors, of electrical machines, cylinders, fly wheel, rotor of
centrifugal pumps and any other type of rotating machines. These machines are very simple in
design. No. drive coupling/ adaptor etc. required to connect to the rotor to be balanced. It has
following advantages

1) Coast saving on manufacturing of precision adaptor to connect drive coupling to rotor.
2) Any rotor can be balanced without loosing time in manufacturing of adaptor.
3) The balancing accuracy of rotor not disturbed due to unbalance in drive coupling / adaptor
4) Belt drive machine are more accurate (about 5 times) as compared to end drive machine.

The machines features a very simple operation. The working cycle is fully automatic. From
safety point of view a double press push button starts machine, Measures and stores the
unbalance values on DPMs for two Plane simultaneously and stops machine. Key board facility
provided in measuring panel for correct data deeding of rotor with l digit accuracy for its
dimensions like A.B. C, R1 & R2. Tolerance limits of both correction planes i.e.t 11 & t12 can be
feed so that when rotor is balanced within the limits respective LEDs glow up, indicating no
further correction necessary. For other details please refer “ features of measuring panel
HDCM-8500”

STANDARD FEATURES

1) Digital display for unbalance indication
Amount and angle of unbalance for both planes displayed on separate DPMs. Hence linear
accuracy is very goos as compared to analog meter + /- 1 digit for amount and +/-1 degree for
angle.

2) Digital display for RPM indication
A DPM is provided to indicate balancing speed continuously as a standard feature.

3) Auto Stop
No necessity to stop machine once started. It stops automatically after stabilization of
unbalance results.

4) Simultaneous Indication
Amount and angle of unbalance in both planes displayed simultaneously and remains displayed
(stored ) till next run. This totally eliminates operation of plane selector and reduces additional
time for stabilization of readings in other plane.

5) Key-Board
Data of rotor dimensions and balancing tolerance i.e. values of A,B,C,R1,R2, t11,t12 are fed by
key operation . Hence accuracy of data feeding is accurate up to 1 digit.

6) Tolerance Indicators
Separate LEDs are provided for both planes which glow when unbalance is reduced within
balancing tolerance.

7) Auto Range
Depending upon whether unbalance amount is more or less a respective course or fine range
gets automatically selected till rotor gets balanced within tolerance limits, Multiplier operation is
totally eliminated.

8) Data store
Data of various rotors can be stored against respective rotor type nos. Hence no need of
measuring of rotor dimensions or rotor data feeding when repeat balancing operation required.
Just call rotor type no. and machine is ready for balancing.

9) Self Check
Panel is provided with ‘self-check’ mode which checks proper functioning of digital displays,
LEDs is cyclic operation. This helps immediate fault detection.

ADDITIONAL FEATURES ON DEMAND
Printer :
A matrix printer can be connected through ‘FIE’ software. It shows runs till rotor is balanced
within balancing tolerance.

Component Indication :
‘FIE’ software specially developed with 3-99 component indication is suitable for balancing of
rotor with fixed locations for balancing correction.

Unbalance Correction :

• Drill attachment 8mm capacity portable drill With supporting overhead railing.
• Separate drilling attachment 19mm. Capacity with a vertical drilling head , manual.
• Portable type reverting hammer (piston type) speed 1800 blows/minute, capacity 6mm in a

aluminum suspected from top with rail.
• Tangential belt drive, in addition to standard (suitable for a particular type of rotor for
production balancing)
• Longitudinal movement of right hand pedestal by chain & sprocket attachment.

TECHNICAL SPECIFICATIONS
"FIE" HORIZONTAL HARD BEARING BELT DRIVE DYNAMIC BALANCING MACHINES.

MODELS	UNIT	HDCM 10	HDCM-30	HDCM-50	HDCM-100	HDCM-300
Wt. of rotors	kg	0.2-10	0.3-30	0.5-50	1-100	3-300
Max. wt. on each pedestal	kg	7.5	22.5	30	75	180
Max. diameter of rotor	mm	250	5000	500	800	1000
Max. distance between bearings	mm	300	1200	1200	1200	2100
Min. distance between bearings ( drive outside pedestal )	mm	20	50	50	50	150
Shaft diameter	mm	5-50	5-50	5-50	15-80	20-120
* Balancing speed range ( n )	RPM	750-3000	500-2000	500-2000	400-1600	300-1500
Power of drive motor	HP	0.33	0.75	0.75	1.5	3
Acceleration capability ( ga²n² )	kgm²n²	0.29x10⁶	0.37x10⁶	0.37x10⁶	0.88x10⁶	3.9x10⁶
Min. Unbalance mass measured	g	0.01	0.1	0.1	0.1	0.1
Max. Unbalance mass measured	kg	0.4	4	4	4	4
Unbalanced reduction ratio	%	95	95	95	95	95
Min. Achievable unbalance per roto wt. ( For mx.roto wt. )	gmm / kg or micron.	0.2	0.2	0.2	0.2	0.2

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