YYQ-3000 Belt Drive Balancing Machine, 3000 kg

The YYQ-3000 takes the YYQ belt drive platform to 3000 kg and Ø2100 mm, and it is the first model in the range to raise workpiece height to 2280 mm. Long rollers, tall impeller assemblies and extended shafts that would not fit a 1780 mm envelope can be mounted here.

Roller carriage journals reach Ø40–380 mm, a range shared only with the 5000 kg machine, and the belt covers driving diameters of Ø50–900 mm, so wide hubs and thick shafts sit on the same set of carriages. A 7.5 kW variable-frequency motor drives the rotor at 921 or 1329 rpm with a 100 mm driving diameter, continuously variable across that band.

As with every belt drive dynamic balancing machine in the series, the rotor turns on a belt around its outer diameter rather than a coupling on the shaft end. There is no flange to bolt up and no coupling alignment to repeat — which matters when a three-tonne rotor has to come off and go back on for a second correction pass.

Stated accuracy is ≤1 g·mm/kg minimum achievable residual unbalance at a 90% unbalance reduction ratio, the same class as the 2000 kg model, so the choice between them is about workpiece size, not measurement precision. Typical work covers large fan impellers, heavy rollers, big pump rotors and similar long rotating parts. When comparing dynamic balancing machines by envelope rather than tonnage alone, our rotor balancing solutions team can check your drawing against these limits, and the balancing technical guide explains the trade-offs.