A planetary grinder for both concrete grinding and floor prep.

HTC Greyline• 450 is a single-phase, planetary grinder with three grinding heads and a counter-rotating grinding wheel for stable grinding without lateral forces. It works equally well for concrete grinding and floor prep as it does for grinding/sanding of wooden floors. The machine is divisible for easy transport.

Easy Grinding
HTC Greyline• literally means easy grinding. Select and attach your tools, plug the machine into the wall & start grinding.

Easy tool choice
Three standard tools in different grit sizes for removal of coatings and levelling of concrete are all the tools needed, it can•t be easier.

Divisible for easy transport
All floor grinders in the HTC Greyline• series are divisible which make the grinders easy to transport.

Floating Cover HTC Greyline•
All grinders in the HTC Greyline• series come with a floating cover. The floating cover simplifies handling of the machine and creates a better dust absorption. No need for a separate splash guard.

Robust chassis
The robust and sturdy chassis makes the machines perfectly balanced which is important when grinding but also simplifies machine handling for tools change etc.


The HTC developed tool change system is quick, simple and safe. One tooling system for all HTC•s grinding machines. Read more

  Technical Details
Name HTC GL 450 HTC GL 450 HTC GL 450 HTC GL 450
Length 705mm 705mm 705mm 705mm
Width 490mm 490mm 490mm 490mm
Height 1305mm 1305mm 1305mm 1305mm
Weight 95kg 95kg 95kg 95kg
Motor Output 1.5kW 1.5kW 1.5kW 1.5kW
8.31A 17.58A 17.58A 8.31A
Voltage 1 x 230V 1 x 110V 1 x 110V 1 x 230V
Frequency 50Hz 50Hz 60Hz 60Hz
Grinding Pressure 63kg 63kg 63kg 63kg
Revolution Speed 480
Grinding Discs 3 x 180mm 3 x 180mm 3 x 180mm 3 x 180mm
Grinding Head Weight 68kg 68kg 68kg 68kg
Grinding Width 450mm 450mm 450mm 450mm
Grinding Motors 1 1 1 1
Dust Extraction Systems

Good working environment
HTC•s machines are perfectly balanced during grinding without any sideways forces and with vibration levels much lower than the threshold values. The sound levels are very low, and grinding is made more or less dust free.


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