688-4D is a grinding machinery for large-scale constructionjobs. Equioped with high-power motor and frequency control devices to meet concrete grinding and other construction requirements of a large area, and can meet different need construction process for polishing and surface treatment.

New configuration of Q688C with original Wonder motor and Delta inverter

machine with two carrying poles, convenient to carry the gearbox and motor.

 With wire rack, can help you to manage and protect heavy electircal cable.

Gear box with oil filter integrated, machine running is more stable

Four heads with 12 integrated convert blocks, can use velcro-back and bolt-on metal pads

The grinding disc high coupling the rubber cushion is good for improving the grinding force and the grinding effect of the machine, and achieve the brightness in short time.