Our advantages:

a)  Owner of professional factories

b)  Experienced and have sophisticated craftsmanship.

c)  With strict control of every process and quality-inspected.

d)  Have big stock, prompt delivery and good fame in stone industry.

Quality Control:

We have a professional inspection team who will check the goods from block cutting,finishing, packing and loading into the container,

Thickness tolerance: +/- 0.5, +/-1mm.

Each procedure will be double-checked by 2 inspectors.

Clear product pictures will be sent by email to customers before shipment.

Terrazzo Surface Issues and Safety Guidelines

6.3 Holes and Pores in the Terrazzo Surface

• After machine milling, small holes often appear on the terrazzo surface.
• These are typically repaired using the grout method, where cement and pigment of the same color are used to fill the holes. Once hardened, the surface is compacted and polished.
• "Two grout and three grinding" method:
  • The surface is polished three times and grout is applied twice.
  • If the grout is not applied properly or wiped incorrectly (e.g., using a broom instead of wiping), small holes may remain.
  • If the slurry is polished before it hardens, the mortar may be removed, creating more holes.

6.4 Uneven and Unrevealed Stone Particles in the Surface Layer

• Causes:
  • Poor stone specifications or uncleaned stones.
  • Stones getting buried in the mortar when spread and mixed, leading to an uneven appearance.

1. Operator Safety

• Wear protective gear:
  • Rubber boots and insulated gloves are mandatory.

2. Machine Operation Requirements

• The terrazzo natural stone machine should begin grinding only when the concrete reaches 70%-80% of its design strength.

3. Pre-Operation Checks

• Ensure all connecting parts are tightly secured.
• Test the grindstone by tapping it with a hammer—if it produces a crisp sound without cracks, it is safe to use.

4. Electrical Safety

• Cabling:
  • Use a weather-resistant, insulated four-core flexible cord.
  • The switch should be a button switch installed on the grinder’s handle.
  • Cables should be elevated off the ground to prevent dragging and damage.
• Insulation and Grounding:
  • The terrazzo machine handle must be covered with an insulating tube.
  • Zero-connection protection should be implemented with at least two contact points.
  • A leakage protector (≤15mA action current, ≤0.1s action time) must be installed.

5. Grinding Procedure

• Turn on the power and water source, then press the handle to lift the grinding disc off the ground before starting the motor.
• Check that the grinding disc rotation matches the indicated direction.
• Once operational, slowly lower the grinding disc to begin grinding.
• Ensure continuous water flow during operation to prevent drying of the working surface.

6. Handling Machine Malfunctions

• If the grinding disc bounces or produces abnormal noise, stop the machine immediately for maintenance.
• Before shutting down, first lift the grinding disc, then turn off the machine.

7. Replacing the Grinding Stone

• After installing a new grindstone, grind it on a waste surface (e.g., old cement floor) for 1-2 hours to smooth the diamond cutting edge before using it on the actual working surface.
• Ensure the grinding block is clamped securely and check the fixture frequently to prevent accidents.

8. Post-Operation Maintenance

• Power Off: Cut off the power after use.
• Cleaning: Remove mud and debris from all machine parts.
• Storage: Store the machine in a dry place and cover it with a rainproof cloth.

9. Electrical Work Restrictions

• Only qualified electricians are allowed to install, repair, or modify electrical wiring and switches.
• Unauthorized personnel must not tamper with electrical components.