Balancing Machines Vibration Analyzer Calibration and Service Balancing Services Tips & Tricks Links Contact

25,000 lbs capacity

Product Description

Rotor Mass and Unbalance Limitation   
Maximum Weight25,000 lbs (11360 Kg)
Minimum Weight 100 lb.(45.4Kg)
Maximum Weight per Support 12,500 lbs. (5682 Kg)
Maximum Overload per support 12,500 lbs. (5682 Kg)
Maximum indicated sensitivity per plane
(Instrument readout capability)
.005 ounce-inch
.014 gram-inch
Maximum Achievable .01 ounce-inch total
Residual Unbalance
.005 ounce-inch/plane
Under ideal rotor conditions but not to exceed .000005 inches
mass center displacement
Maximum Unbalance reduction per run
Shipping Weight4100 lbs. (1864 Kg) dom.
4500 lbs. (2045 Kg) exp.
Rotor Dimensions 
Maximum diameter over bed100 inches (2540 mm)  
Rotor belt drive diameter range1-90 inches (25.4 to 2300 mm)   2 belts incl.
Maximum distance between
support bearings centerlines
80  inches (2032 mm) using main base only
No length limitations using  provided extra
10 ft. (3047 mm) bed
Minimum Distance between
support bearing centerlines
With belt drive:
Outboard:     6.5 inches (165 mm)
Inboard:     12.5 inches (318 mm)
1” (25.4 mm) with optional fixture
Journal diameters on standard bearing set ½ to 17 in. (12.7 to 431 mm)
Motor & Control  
Variable Frequency
AC Drive with programmable
acceleration/deceleration patterns
DC Injection breaking 0.1 to 240 Hz. Output 
Rated horsepower 25hp. at 1800 RPM (19 Kw) 
Speed Range 10 to 4000 RPM  
Power Required
200 to 230 Volt, 3 phase 60 Hz
or 380 to 460 Volt, 3 phase 50/60 Hz.
Recommended Balancing Speed

150-4000 RPM

Machine Base

120 inch (3048 mm) long x 49.5 inch (1257 mm) wide.  Total width of machine with drive is 105 inches (2667 mm). 

Base Installation

No special foundation required.  Bolt to any concrete floor with the capacity to safely support a maximum loaded machine with the motion during operation.

Upright Work Supports 
Each Support supplied with (1) 021-DP Direct Prod High Output Electrodynamic Transducer.
Calibration  traceable  to N.I.S.T.        
High capacity anti-friction roller carriages with self aligning, gimble action feature to provide precise line contact between flat rollers and rotor journals.                        
Optional offset carriers with babbit lined “V” block bearings are available for short shafts and light loads
Each upright support moves on roller carriers.  Pedestals are locked to the base using  lever assemblies that are hand operated. 


An advanced performance computer system preinstalled with Windows XP Pro, and including a 17" monitor,  keyboard, mouse and printer.  Also including, our latest  Windows based balancing program featuring user-friendly report , menu driven operations and a full page printout, driven by our new 24 bit digital signal processor using USB technology.

Setup and Calibration

The use of trial weights establish the true effect of a known unbalance at a specific correction plane on the work piece.  Thus the machine is calibrated each time you use it.  This operation requires two runs  but the influence coefficients derived from this procedure aid in minimizing cross-effect and can be saved so that future rotors with the same geometry and mass can be balanced in just one run.

Contact Our Team