HM 4 - HM 50 - SCHENCK USA

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Universally applicable
High balancing accuracy
Easy to upgrade through modular construction and a wide range of accessories
Hard-bearing principle ensures quick change-over from one workpiece to the next
Measuring instrument CAB 820, optional CAB 920 - the high end solution
Full range of 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 correction of 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 are conceived for highly precise balancing of a wide spectrum of rotors. They are suitable for balancing cylindrical rotors with integral shaft journals and for balancing disc shaped rotors on balancing arbors.

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

Their 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, braking. 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 4	HM 40	HM 5	HM 50
Measuring instrument		CAB 820	CAB 820	CAB 820	CAB 820
Roller carriages		•	•	•	•
Underslung belt drive BU		•	•
End drive				•	•
Protective device as per ISO 7475		•	•	•	•
Rotor
Weight, max.	[kg]	1500	3000	5500	8000
Diameter, max. ²⁾	[mm]	1600	1600	1600	1600
Bearing distance, max. ²⁾	[mm]	1750	1750	2000	1980
Bearing journal diameter ²⁾	[mm]	12 - 200	15 - 240	18 - 280	25 - 380
Machine
Width A ¹⁾	[mm]	3150	3150	4200	4200
Depth B ¹⁾	[mm]	2700	2700	3750	3750
Height C ¹⁾	[mm]	2000	2000	2000	2000
Balancing speed, min.	[min -1]	120	120	120	120
MARU ⁴⁾	[gmm]	5	8	16	20
Air pressure	[kPa]	600	600	600	600
Power supply ³⁾	[V]	400 ³⁾	400 ³⁾	400 ³⁾	400 ³⁾
Drive power ²⁾	[kW]	7,5	7,5	7,5	7,5
Sound Pressure Level (with belt drive)	[LpA [dB(A)]]	70 - 80	70 - 80	70 - 80	70 - 80

Basic machine	Order-Nr.	R0060700.01	R0060800.01	R0060900.01	R0061000.01
Options
Measuring unit CAB 920	Order-Nr.	R0060701.01	R0060801.01	R0060901.01	R0061001.01
Software options		o.r.	o.r.	o.r.	o.r.
Underslung belt drive BU	Order-Nr.	-	-	R0060203.01	R0060203.01
End drive	Order-Nr.	•	•		-	-
Various roller carriages		o.r.	o.r.	o.r.	o.r.
Report printer	Order-Nr.	R0060705.01	R0060805.01	R0060905.01	R0061005.01
Mass correction system	Order-Nr.	o.r.	o.r.	o.r.	o.r.

1) Data non-binding to DIN 1319, 95% probability, work-piece dependent
2) Other data on request
3) Main configuration: 3 / PE AC 500Hz 400 V +6 / -10%
4) Minimum achievable residual unbalance per balancing plane
5) Up to HM10 with protection class C, in all other cases protection class B
o.r. On request