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Home High Tech Grinding Floor Grinder 800-4A Self-propelled And Four-head Floor Grinding Machine In Concrete Grind

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800-4A Self-propelled And Four-head Floor Grinding Machine In Concrete Grind

The 800-4A is a efficient self-propelled floor grinding machine with high cost performance and high productivity. The design of planetary rotating and cruise control system makes the grinding effect uniform and stable.

  • Brand:

    High Tech Grinding
  • Item NO.:

  • Product Origin:

    Fujian, China
  • Color:

    Black And Silver
  • Shipping Port:

  • Lead Time:

    7-20 Days
Product Detail

800-4A Self-propelled And Four-head Floor Grinding Machine In Concrete Grind



800-4A Self-propelled floor grinding machine


220V 3 phase

380V 3 phase




Working width


Grinding disc


Motor Rotating speed


Motor HP





WEG motor + Delta inverter



Extra weight

20kg x 2

Water tank


Packing size


Four-head Floor Grinding Machine

1. There is a cruise conctrol system in the machine. By setting the grinding speed and walking speed, the grinding effect will be uniform and consistent, even the novice can process the ground eaisly.

2. The floating dust cover shorten the time of replacing abrasives with good  dustproof effect.

3. Equipped with well-known international brand WEG motor, Delta inverter, this grinder is of high quality and global after-sales service.

4. Three-stage additional weight iron can be adjusted according to the actual surface condition to increase or reduce the grinding pressure, which is also convenient for carrying.

5. Heavy net weight make larger grinding pressure and stronger grinding force.

6. Equipped with stainless steel water tank, this machine can be applied to both wet grinding and dry grinding.

7. The button layout of control panel is reasonable and the operation is simple and easy to understand.

8. With 25 degree slope climbing function, it is convenient for transportation.

800mm Self-driven concrete polisher


Four-head and multifunctional grinding disc



How do you grind concrete floors yourself?


Step 1: Check the floor surface condition.

Step 2: Grinding with 800-4A floor grinder and metal pads HTG-2Y 30# 60#.

Step 3: Clean the floor surface.

Step 4: Repair surface with HTG-EC-1008 and metal pads 120#.

Step 5: Polishing with resin pads HTG-C310-50# 100#.

Step 6: Harden the surface with densifier HTG-EC-L01.

Step 7: Polishing with resin pads C310-200# 400# 800# 1500#.

Step 8: Apply sealer HTG-EC-S01 on the surface.

Step 9: Buffing with high speed polisher and buffing pads.


How do you fix holes and cracks on floor with grinding machine?


Grinding repairing is suitable for the hole less than 10mm and cracks less than 1mm.

①Tools: 800-4A floor grinder, dustless cutting machine, diamond pads, EC-1008, fast drying cement, bucketm watering can.

②Clean all the sundries on floor with a acuum cleaner.

③Apply a sufficient EC-1008 repair agent when there is no obvious water logging.

④Grind directly with a 800-4A planetary grinding machine with the diamond pad(120#) until all holes and cracks are filled(speed should be 800-1000rpm)

⑤Check whether the repair is completed, protect the ground with water 3-5 times.

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