How to Solve Wet River Sand Drying Problems in Indonesian Building Material Plants?

In dry mortar production, sand is one of the key raw materials, and its moisture content directly affects product quality and production efficiency. Especially in regions such as Indonesia and other Southeast Asian countries, due to the humid climate, construction river sand often contains a high amount of moisture after washing or outdoor storage. Therefore, how to achieve efficient and stable wet river sand drying treatment has become an important concern for many building material manufacturers.

Recently, Tongding Machinery designed and delivered a complete 15TPH sand drying production line solution for a building material factory in Jakarta, Indonesia. The project adopts an energy-efficient three-pass sand dryer, combined with a customized dust removal system and conveying equipment, achieving integrated processing from wet sand feeding, drying, dust collection, to finished dry sand discharge. The system provides stable raw material support for the customer’s future dry mortar and tile adhesive production.

Why Does Wet River Sand Need Professional Drying Treatment?

For dry mortar manufacturers, sand is not simply a material that needs to be stored and transported. Its condition directly affects the performance of the final product.

If wet sand enters the mixing system without proper treatment, it may cause:

• Reduced material flowability;
• Unstable material proportioning;
• Lower mixing uniformity;
• Fluctuation in finished product performance.

Therefore, before producing tile adhesive, wall putty, and other construction powder materials, professional sand drying production equipment is required to pre-treat the raw materials.

In this Jakarta project, the front-end drying process ensures that wet sand is properly dried before entering the downstream mixing process, improving overall production stability.

How Does the Three-Pass Sand Dryer Improve Drying Efficiency?

The core equipment of this project adopts Tongding Machinery’s three-pass drying technology.

Compared with traditional single-drum dryers, the three-pass structure uses a multi-layer drum design, allowing sand materials to be lifted, dispersed, and exchanged with hot air more effectively inside the dryer.

After entering the dryer, wet sand continuously moves through the internal lifting structure and fully contacts with hot air, allowing moisture to evaporate quickly.

Main advantages include:

• Longer heat exchange time;
• Lower energy consumption per ton of material;
• Strong adaptability to different sand sizes;
• Stable performance for continuous production.

After drying, the processed sand becomes high-quality dry mortar aggregate, suitable for further tile adhesive raw material processing.

How to Design a Sand Drying System for Limited Factory Space?

In overseas building material projects, many customers upgrade production equipment inside existing factories instead of constructing new plants. Therefore, equipment layout becomes an important factor during project planning.

In this Indonesia project, the customer had limited ground space and needed to reserve enough area for vehicle movement and material transportation.

Based on the site conditions, Tongding Machinery adopted a factory-adapted customized drying solution and designed the dust removal equipment on a second-floor platform.

The cyclone dust collector, exhaust pipes, and related systems were installed above the main dryer, saving ground space and optimizing equipment connections.

This flexible layout can adapt to overseas factories with different heights and structures.

Complete Dust Removal System Ensures Cleaner Production

During the sand drying process, certain amounts of dust may be generated. Without effective treatment, dust can affect the working environment and increase equipment maintenance requirements.

Therefore, this project is equipped with a complete sand dust removal system.

Through the connection between the dryer, conveying equipment, and dust collection system, the project achieves:

• Centralized collection of dust generated during drying;
• Reduced material loss;
• Improved production environment;
• More stable equipment operation.

The complete layered dust removal system is specially designed to match the drying line, allowing efficient production even under limited factory conditions.

Tongding Machinery Provides Customized Sand Drying Solutions

Different countries, raw materials, and factory conditions require different drying solutions.

Tongding Machinery provides complete services including process design, equipment manufacturing, installation, and commissioning according to customer requirements.

The Jakarta project adopts a complete turnkey sand drying solution, covering:

• Raw material feeding;
• Conveying system;
• Drying main unit;
• Dust removal system;
• Finished product discharge.

In the future, Tongding Machinery will continue to provide efficient, energy-saving, and reliable sand drying equipment for customers in Indonesia, Southeast Asia, and worldwide, helping more building material enterprises improve their raw material processing capabilities.

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