In the high-pressure environment of a construction site, cleanliness is often mistaken for aesthetics. However, in a concrete batching plant, cleanliness is a core functional requirement. Residual concrete buildup doesn't just look messy—it adds dead weight to motors, unbalances mixing shafts, and causes sensor drift that can ruin an entire day's pour.

Whether you are operating an HZS90 in the heat of Saudi Arabia or a mobile plant in the humid climates of Southeast Asia, following this systematic cleanliness audit will protect your investment and ensure mix precision.

1. The Mixer and Mixing Tank: The Heart of the Operation

For JS-series twin-shaft mixers, the internal environment is critical. Hardened concrete on the blades increases the startup torque, potentially leading to motor burnout.

• Internal Inspection: Open the mixer access hatch and check for "build-up" on the mixing tank walls. If residue exceeds 5mm, it must be removed.
• Shaft and Blades: Ensure the mixing shaft, scrapers, and discharge doors are clear. Residue on the discharge door seal is the primary cause of grout leakage.
• The Gravel Flush: After daily operations, we recommend a "wet flush" using a small amount of coarse gravel and water. The abrasive action of the gravel helps scrub the blades more effectively than water alone.

2. Weighing Systems and Hoppers

Precision is the difference between high-strength concrete and a rejected batch. Dust and material accumulation are the enemies of accuracy.

Component	Inspection Point	Operational Impact
Aggregate Hoppers	Check for stuck material in corners	Prevents "zero-point" sensor errors
Cement Weighing Hopper	Check flexible connections for stiffness	Ensures accurate load cell readings
Admixture Tanks	Check for crystallization/sediment	Prevents pump blockages and dosage errors

3. Conveying and Mechanical Systems

The transition points between the batcher and the mixer are where most dust-related failures occur. In regions with high sand abrasion, like the Middle East, cleaning these areas also allows for early detection of belt wear.

• Belt Conveyors: Remove concrete splatter from the drive rollers. Build-up here causes belt slippage and tracking issues.
• Pneumatic Components: Inspect cylinders and solenoid valves. Dust ingress in the air vents can cause sluggish valve response, leading to gate timing issues.

4. Electrical Cabinet and Thermal Management

In hot and dusty environments, the electrical system is at high risk. Dust acts as an insulator, trapping heat inside contactors and VFDs (Variable Frequency Drives).

Action: Use a low-pressure vacuum or a soft brush to clean the electrical cabinet weekly. Never use compressed air if it contains moisture, as this can cause short circuits. Ensure all motor housings are free of dust to allow for proper heat dissipation.

Summary Maintenance Schedule

To maintain peak performance, Xingye Machinery recommends a "Clean-as-you-Go" policy. This includes a 10-minute end-of-shift washdown and a comprehensive weekly deep clean of the weighing sensors and electrical housings.

Proper maintenance starts with the right equipment. If your current plant is difficult to maintain or experiencing frequent sensor failures due to poor design, contact our engineering team for a consultation on our latest HZS-series plants featuring easy-access maintenance platforms and self-cleaning mixer technology.