Rotary Drum Stone Washing Equipment
Tumbling drum action · Coarse aggregate cleaning · Robust and simple design
Rotary drum washer · tumbling perforated drum for coarse stone cleaning
Core specifications
Drum diameter1200 – 2500 mm
Drum length4000 – 10000 mm
Capacity20 – 300 t/h
Motor power7.5 – 45 kW
Suitable forCoarse, heavily contaminated or sticky stone
Rotary Drum Stone Washing Equipment – Overview
The SMC rotary drum stone washing equipment uses a large, slowly rotating perforated drum through which stone and water tumble together, relying on the mechanical scrubbing action of stones rubbing against each other and against internal drum lifters to remove surface clay, mud, and dust coatings from coarse aggregate.
As the drum rotates, internal lifting flights carry stone up the drum wall before it tumbles back down through a stream of spray water, repeating this lifting-and-tumbling cycle continuously as material travels along the drum's length from feed inlet to discharge outlet, providing extended contact time for thorough washing of coarse material.
The perforated drum shell allows wash water carrying dislodged clay, mud, and fine particles to drain continuously through the drum wall into a collection trough beneath, while retaining the coarser stone within the drum for the full length of its travel, achieving separation by particle size as an inherent part of the washing process.
Because the tumbling action is mechanically robust and simple, this equipment handles heavily coated, sticky, or clay-bound stone that might resist cleaning by spray washing alone, making it a preferred choice for freshly quarried stone straight from blasting where surface contamination is often significant.
Internal lifter design can be customized with different flight profiles and quantities to tune the tumbling intensity and residence time for different stone sizes and contamination levels, allowing the same basic drum platform to be configured for a range of washing duties from light rinsing to aggressive scrubbing.
The drum shell and internal lifters are constructed from heavy-gauge wear-resistant steel, since the constant tumbling of coarse, often angular stone against the drum interior generates significant abrasive wear over the equipment's operating life, particularly at the lifter edges where impact forces concentrate.
Typical applications include washing freshly quarried coarse aggregate straight from blasting, cleaning recycled concrete rubble of adhered mortar and dust, and pre-washing stone ahead of crushing stages where surface contamination could otherwise affect crusher liner wear or product quality.
For operations processing heavily contaminated or sticky coarse stone that resists simpler washing methods, the SMC rotary drum stone washing equipment's robust tumbling action provides thorough, reliable cleaning.
Sanming Mining - Raising Industry Standards
Company Profile
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Sanming is an international Mining Machinery Equipment Supplier that integrates R&D, Manufacturing, and Sales of Rock Crushing&Screening equipment, as well as Sand Making, Sand Washing, and Grinding equipment. Sanming has passed ISO9001 quality system certification.
As
China Rotary Drum Stone Washing Equipment Manufacturers and
Wholesale Rotary Drum Stone Washing Equipment Factory, our equipments are widely used in the fields of Sand and Gravel Aggregate processing, Mining, and Construction Waste Resource utilization.
"Sanming" brand equipments are not only distributed in nearly 30 provinces in China, but also exported in large quantities to multiple countries in Central Asia, the Middle East, South America and Africa, and has received unanimous praise from users. Our main production base is located in Qidong (Shanghai Pudong New Area Industrial Park). We warmly welcome your visit to our factory.
- 200+
Number Of Products
- 20,000
Factory Area
- 500w
Annual Sales
- 40%
Annual Export Ratio
How It Works – Working Principle
Tumbling Lift Cycle
Internal flights lift stone up the drum wall before it tumbles back down.
Continuous Spray Washing
Spray water combines with tumbling action to loosen surface contamination.
Perforated Drainage
Drum wall perforations allow contaminated water to drain continuously.
Length-Based Residence Time
Material travels the full drum length, providing extended washing contact.
Applications & Industries
Freshly Quarried Stone Washing
Cleaning surface mud and dust from stone straight from blasting.
Recycled Concrete Cleaning
Removing adhered mortar and dust from recycled rubble.
Pre-Crushing Stone Washing
Reducing surface contamination before material enters crushing stages.
Heavily Coated Stone Treatment
Cleaning sticky, clay-bound material that resists simple spray washing.
Suitable For Various Mining Applications
Equipment Production Line
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Selection Guide – Choose the Right Model
RD-1200
Feed: 1200mm drum · Capacity: 20–60 t/h
Compact drum washer for smaller quarry operations.
RD-1600
Feed: 1600mm drum · Capacity: 50–130 t/h
Balanced model for standard-scale coarse stone washing.
RD-2000
Feed: 2000mm drum · Capacity: 110–220 t/h
Higher-capacity option for larger quarry washing needs.
RD-2500
Feed: 2500mm drum · Capacity: 180–300 t/h
Top-capacity model for major coarse stone washing operations.
Comparison – Rotary Drum Washer vs Spray Bar Washing System
Key Performance Indicators
Cleaning thoroughness on sticky material · Water efficiency · Mechanical simplicity (relative)
Rotary Drum Advantage
- Handles heavily coated, sticky stone effectively
- Mechanically robust and reliable
- Extended residence time for thorough cleaning
Spray Bar Washing System
- Lower water consumption
- Simpler installation with fewer moving parts
- Adequate for lightly contaminated material
Key Components – Built to Last
Perforated Drum Shell
Heavy-gauge steel drum allowing water and fines to drain through the wall.
Internal Lifting Flights
Customizable flight profiles tuning tumbling intensity and residence time.
Spray Water Header
Delivers continuous wash water along the drum's length.
Drive Ring & Trunnion Support
Supports the rotating drum and transmits drive power smoothly.
Collection Trough
Gathers drained wash water and fines beneath the drum for disposal or recycling.
Feed & Discharge Chutes
Direct stone into and out of the drum at each end of its travel.
Installation & Commissioning
Foundation
Reinforced foundation supporting the drum's trunnions and drive system.
Water Supply Setup
Connect spray header water supply and collection trough drainage.
Drum Alignment
Verify trunnion alignment and drum level before first start-up.
Commissioning
No-load run to confirm rotation, then gradual stone and water feed.
Maintenance Schedule & Wear Trend
Wear/Component Life Over Time (Relative)
Inspect internal lifter flights regularly — worn lifters reduce tumbling intensity and washing effectiveness.
Daily Checks
- Drum rotation smoothness
- Spray water coverage
- Discharge stone cleanliness
Weekly Checks
- Inspect lifter flight wear
- Check drum perforations for clogging
- Clean collection trough
Monthly
- Grease trunnion bearings
- Inspect drive ring and gear condition
- Check drum shell for wear thinning
Yearly
- Full trunnion bearing inspection
- Inspect drum shell structural integrity
- Complete drive system service
Quality You Can Trust
Why choose Sanming
Sanming is a professional manufacturer of R&D, manufacturing and sales
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01. Design & Customization
The company has an experienced and highly skilled R&D team, which is capable of providing customers with customized equipment solutions to meet the needs of different customers
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02. Advanced Facilities
The company has invested in and introduced a series of advanced production equipment, such as high-precision CNC machine tools, automated welding equipment, etc. These equipment features high efficiency, precision and stability, which can ensure the quality of products and production efficiency
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03. Reliable Quality
The company always gives top priority to product quality. It uses high-quality raw materials and components, and through strict screening and inspection, it ensures the quality and performance of products. At the same time, the company also conducts long-term tracking and services for products, promptly solves the problems encountered by customers during the use process, and improves customer satisfaction
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04. Service Integrity
The company has established a complete after-sales service system to provide customers with comprehensive services. This includes equipment installation and debugging, operation training, maintenance, technical consultation, etc., to ensure that customers can use the equipment smoothly and maximize its benefits
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05. Cost Control
The company effectively controls product costs by optimizing the production process, reducing raw material procurement costs, and improving production efficiency. On the premise of ensuring product quality, it can provide customers with competitive prices and enhance their market competitiveness
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06. Brand Influence
After years of development, the company has established a good brand image in the mining equipment manufacturing industry and has won the trust and praise of customers
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07. Convenient Transportation
The company is only 50 kilometers away from Shanghai Yangshan Port, making the transportation of goods and exports very convenient
Frequently Asked Questions (FAQ)
1. How does a rotary drum washer clean stone more effectively than spray washing alone?
The tumbling action of stone against itself and internal lifters, combined with continuous spray water, mechanically scrubs surface contamination in a way that static or moving spray bars alone cannot achieve on heavily coated material.
2. What stone conditions is this equipment best suited for?
It excels at cleaning heavily coated, sticky, or clay-bound stone straight from blasting or recycled concrete rubble with adhered mortar, where simpler washing methods struggle.
3. How is washing intensity adjusted?
Internal lifter flight profiles and quantity can be customized to tune tumbling intensity and residence time for different stone sizes and contamination levels.
4. What water consumption does this equipment require?
Water consumption is generally higher than simpler spray bar systems due to the continuous spray combined with the drum's washing action, though it can be partially recycled with proper water management.
5. How is separation by size achieved during washing?
The perforated drum wall allows fine contaminated water and small particles to drain continuously while retaining coarser stone within the drum for its full travel length.
6. What maintenance do the internal lifters require?
Lifter flights should be inspected regularly for wear, particularly at the impact edges, since worn lifters reduce tumbling intensity and overall washing effectiveness.
7. Can this equipment wash recycled concrete aggregate?
Yes, it is commonly used to remove adhered mortar and dust from recycled concrete rubble, where the tumbling action helps break loose stubborn cementitious coatings.
8. What capacity range is available?
Capacity ranges from 20 to 300 t/h depending on drum diameter and length, covering small quarry operations through major washing facilities.
9. How is the drum supported and driven?
The drum rotates on trunnion supports with a drive ring and gear system providing rotational power, similar in principle to a rotary kiln or dryer.
10. What causes uneven wear on the drum shell?
Concentration of abrasive material flow on one side, or feed material significantly harder than the drum's design specification, can cause uneven shell wear over time.
11. Is this equipment suitable for pre-crushing washing?
Yes, washing stone before it enters a crushing stage can reduce surface contamination affecting crusher liner wear and downstream product quality.
12. What warranty is offered?
A standard 12-month warranty covers manufacturing defects, with the drum shell and lifter flights covered separately as high-wear components.
After-Sales Support & Services
Lifter Configuration Consultation
Guidance selecting flight profiles for your specific stone contamination level.
Drum Wear Part Supply
Lifter flights and shell sections stocked for ongoing maintenance.
Water Management Support
Assistance designing collection and recycling systems for wash water.
24/7 Technical Support
Ongoing assistance for rotary drum stone washing operations.
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