Floor shot blasting machine is a surface preparation equipment used to clean, roughen, and strengthen concrete or steel floors. It works by accelerating steel shots at high speed and impacting them onto the surface, removing contaminants and creating a uniform texture in a fully mechanical and dust-free process. It is widely used in industries such as shipyards, bridges, warehouses, parking garages, oil tank bottoms, road construction, and concrete repair.
Floor Shot Blasting Machine Practical Maintenance Frequency Guide
Floor shot blasting machines work under heavy load and high-impact conditions, so regular maintenance is the key to ensuring stable performance, long service life, and consistent surface cleaning quality.
1. Daily Maintenance (Every Shift)
These checks keep the machine safe and stable during each operation.
• Check wear parts
Inspect blast wheel blades, control cage, impeller, and liners for visible wear. Replace parts showing cracks or deformation.
• Inspect conveyor and shot circulation
Ensure the abrasive recovery system is not blocked and the separator is working smoothly.
• Clean dust and debris
Remove remaining steel shots, dust accumulation, and waste materials around motors, belts, and the blasting chamber.
• Check fasteners
Tighten bolts on the blasting head, protective covers, and side panels.
• Lubrication check
Verify lubrication of bearings and moving components; add grease if needed.
2. Weekly Maintenance
Helps detect hidden problems before they develop into breakdowns.
• Examine belt and chain tension
Ensure smooth and stable drive transmission.
• Check blast wheel motor condition
Monitor for overheating, abnormal noise, or vibration.
• Inspect dust collector performance
Check filter cartridges or bags, dust extraction airflow, and ash discharge system.
• Shot abrasive quality check
Remove oversized contaminants and ensure the mix contains enough effective steel shots.
3. Monthly Maintenance
More detailed inspections that maintain long-term equipment integrity.
• Full inspection of wear-resistant parts
Measure wear thickness of liners, blast wheel components, shot valves, and hoses.
• Electrical system testing
Check control cabinet, sensors, overload protection, and wiring safety.
• Separator and air wash system adjustment
Ensure shot/contaminant separation efficiency meets required standards.
• Check machine body sealing
Prevent shot leakage by inspecting rubber seals, covers, and chamber integrity.
4. Quarterly or Semi-Annual Maintenance (Depending on Usage Intensity)
For machines used heavily in steel surface preparation or large industrial floors.
• Replace high-wear components
Blast wheel blades, control cage, impeller, and liners should be replaced as necessary.
• Inspect bearing sets and lubrication system
Clean and re-grease or replace bearings to avoid unexpected downtime.
• Calibrate electrical and safety systems
Emergency stop, overload protection, motor starters, and current settings.
• Overhaul dust collector
Replace filter cartridges or bags and clean the interior channels.
5. Annual Maintenance
A complete preventive service to keep performance at its peak.
• Machine overhaul
Disassemble core components of the blasting head, inspect welding joints and frame structure.
• Replace major consumables
All worn liners, blades, and major bearings should be renewed annually for high-utilization machines.
• System optimization
Re-align separator airflow, adjust abrasive flow rate, and improve sealing to enhance blasting efficiency.
Conclusion
Maintenance frequency depends on workload, floor hardness, and operating time, but following the daily–weekly–monthly–quarterly–annual structure ensures:
✔ Stable blasting performance
✔ Longer life of wear parts
✔ Reduced breakdown time
✔ Consistent surface cleanliness and roughness
A well-maintained floor shot blasting machine not only saves costs but also ensures safe and efficient production.