IRD 236 Electronic Balancing Machine
with protection cage.
Our workshop is equipped with an IRD 236 Electronic Balancing Machine, capable of supporting rotating equipment (rotors, fans, couplings, etc.) of up to 2,000kg, 1700mm length and 800mm diameter.
We can perform single-plane (static) or two-plane (dynamic) balancing, conform ISO1940-1, at the required quality grade (G1, G2.5, G6.3, ...) with a key convention following the ISO Standard 8821:1989.
A full report is given to the client including the values of the residual unbalance.
51% of electric motor breakdowns are caused by the wearing and collapse of bearings. The main reason for that is the vibration occurred by the unbalance of the rotor.
Balancing is the process of improving the mass distribution of a body so that it rotates in its bearings without unbalanced centrifugal forces. Of course, this aim can be attained only to a certain degree; even after balancing, the rotor will still possess residual unbalance.
The unbalance is cause by an effective displacement of the mass centre line from the true axis caused by some mass eccentricity in the unit.
The process of "balancing" is the removal or addition of weight to the unit such that this effective mass centre line approaches the true axis. There are two forms of balancing: static and dynamic.
In this picture, both weight A and Weight B are located in the same plane of rotation. Centrifugal forces generated by both weights are acting in the same plane of rotation. Because of this, the combination of both weights acts as if it were indeed combined to one weight. The result is static unbalance.
In this picture, Weight A is located at the far left. This plane is called "Left plane of Rotation". Weight B is located at the far right side of the drum-shaped body. This plane is called "Right plane of Rotation". Centrifugal forces generated by both weights are acting in different planes of rotation. Because of this, each weight will try to pull the drum in the direction of it's centrifugal force. The result is dynamic unbalance. Dynamic unbalance can only be detected when the part is spinning.
It should be appreciated that however close to the ideal a coupling is balanced on the balancing machine, this will change when mounted between driving and driven machines. As it is impossible to achieve zero unbalance, all rotating elements will have an inherent error so that, when conjoined, each element will have an influence to increase or decrease the overall balance of the train by a small unit.
Applications:- Fans (cooling, drying, heating, extracting), axial or drum shaped
- Rotors, armatures
- Pulleys
- Couplings
- Camshafts and driveshafts
- Gears
