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HTC Greyline™ 450

A planetary grinder for both concrete grinding and floor prep

  • HTC GL 450
    HTC GL 450
  • HTC Greyline
    HTC Greyline
  • HTC Greyline
    HTC Greyline
  • HTC Greyline
    HTC Greyline

HTC Greyline™ 450 is a single-phase, planetary grinder with three grinding heads and a counter-rotating grinding wheel for a stabile 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 separates for easy transport.

Need extra power?

The machine is also available with a more powerful motor (2,2 kW, 16 Amp). This version is called HTC Greyline™ 450 HD.

Technical Data

NameHTC GL 450HTC GL 450HTC GL 450 HDHTC GL 450
Article Number113126113127113572113144
Length705 mm705 mm705 mm27.8 inch
Width490 mm490 mm490 mm19.3 inch
Height1305 mm1305 mm1305 mm51.8 inch
Weight95 kg95 kg95 kg209 lbs
Motor output1,5 kW1,5 kW2,2 kW2 HP
Power consumption8,31 A17,58 A12,6 Amp8,31 A
Voltage1 x 230 V1 x 110 V1 x 230 V1 x 230 V
Frequency50 Hz50 Hz50 Hz60 Hz
Grinding pressure63 kg63 kg63 kg139 lbs
Revolution speed480 r.p.m480 r.p.m750 r.p.m576 r.p.m
Grinding discs3 x 180 mm3 x 180 mm3 x 180 mm3 x 7.1 inch
Grinding head weight68 kg68 kg68 kg150 lbs
Grinding width450 mm450 mm450 mm17.7 inch
Grinding motors1111
Recommended Dust Extraction SystemsHTC GL 25 D


  • Easy Grinding
    Easy Grinding

    HTC Greyline™ literally means easy grinding. Select and attach your tools, plug the machine to the wall & start grinding.

  • Easy tool choice
    Easy tool choice

    Three standard tools in different grit sizes for removal of coatings and leveling of concrete are all the tools needed, it can’t be easier.

  • Divisible for easy transport
    Separates for easy transport

    All floor grinders in the HTC Greyline™ series separates for easy transport.

  • floating cover
    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 and sturdy chassis
    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.

  • Adjustable chassis and handle
    Adjustable chassis and handle

    The floor grinder’s chassis and handle can easily be adjusted to fit your preferred working position. HTC recognize the value of good ergonomics.

  • EZchange

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

  • Good working environment
    Good working environment

    HTC’s machines are perfectly balanced during grinding with vibration levels much lower than the threshold values. Sound levels are very low and grinding is more or less dust free.

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