Concrete Mixer Drum Liner
Especificações Técnicas
Key Attributes
| Product Name | Concrete Mixer Drum Liner / Trough Bottom Liner |
| Material Grade | Cr20 / Cr26 High-Chromium Cast Iron, Ni-Hard 4 |
| Hardness Rating | 62 – 66 HRC (Vickers Micro-Hardness 1500–1800 HV) |
| Machine Compatibility | BHS, SICOMA, Liebherr, Teka, SIMI, ELKON, MEKA, Linz |
| Mixer Types | Twin-Shaft, Single-Shaft, Planetary, Pan Mixers |
| Casting Process | Vacuum Sand Casting & Automated Isothermal Heat Treatment |
| Brand Name | VOTNE |
| Place of Origin | China |
| Liner Thickness | 15mm, 18mm, 20mm, 25mm, 30mm (Customized) |
| Target Industry | Commercial Ready-Mix Plants, Precast Factories, Dam Construction |
| SEO Keywords | concrete mixer drum liner, concrete mixer liner, trough liner, high chromium wear plate, BHS mixer liner, SICOMA drum liner |
Product Overview
VOTNE Concrete Mixer Drum Liners are heavy-duty wear-resistant plates engineered specifically to protect the curved mixing trough of industrial twin-shaft, planetary, and pan concrete mixers from continuous aggregate erosion and high-pressure sliding friction.
During high-speed concrete batching, hundreds of kilograms of hard, sharp aggregates—such as quartz sand, crushed granite, river gravel, and basalt—are forced against the internal drum surface under multi-ton blade forces. Standard steel plates wear thin rapidly, leading to shell gouging, cement slurry weeping, and unscheduled plant downtime. VOTNE drum liners utilize ultra-hard Cr20 and Cr26 high-chromium alloy casting technology, forming a high density of discontinuous M7C3 eutectic carbides (1500 to 1800 HV) anchored inside a stress-relieved tempered martensitic matrix.
Whether operating a high-volume ready-mix batching plant or producing high-strength precast concrete elements, VOTNE drum liners deliver up to 3 times longer wear life than conventional Ni-Hard iron, reducing your direct wear cost per cubic meter of concrete mixed.
Material & Alloy Grade Selection
| Alloy Grade | Chemical Composition | Hardness | Microstructure | Best Application |
|---|---|---|---|---|
| VOTNE Cr26 Super High-Cr | C: 2.8-3.6%, Cr: 24-28%, Mo/V | 63-66 HRC | M7C3 Carbides in Martensite | Extreme Abrasive Granite, Basalt & Silica Sand |
| VOTNE Cr20 Standard High-Cr | C: 2.6-3.4%, Cr: 18-22%, Mo | 62-65 HRC | Discontinuous M7C3 Carbides | Commercial Ready-Mix & General Concrete |
| Ni-Hard 4 White Iron | C: 3.0%, Ni: 5.5%, Cr: 9.0% | 58-62 HRC | Fe3C / M3C Carbide Network | Fine Aggregate Mortar & Low Impact Concrete |
Technical Specifications & Dimensions
| Mixer Brand / Model | Liner Position | Standard Thickness | Bolt Hole Type | Approx. Weight (kg) |
|---|---|---|---|---|
| BHS DKXS 2.0 / 3.0 | Central Drum Trough | 20mm / 25mm | M16 Countersunk Oval | 18.5 kg |
| SICOMA MAO 2250 / 3000 | Central & Side Drum | 15mm / 20mm | M16 Countersunk | 14.2 kg |
| Liebherr DW 2.25 / 3.0 | Curved Bottom Trough | 20mm / 25mm | M20 Countersunk | 22.0 kg |
| TEKA TPZ 1500 / 2250 | Planetary Floor Drum | 15mm / 20mm | M16 Countersunk | 12.8 kg |
| Custom OEM Drawings | Tailored to Spec | 15mm - 30mm | As Per CAD Drawing | Custom |
Key Advantages for Plant Operators
Extended Service Life
High-density M7C3 chromium carbides resist quartz aggregate scratching, delivering up to 3x longer operational life compared to standard iron plates.
Lower Cost per Cubic Meter ($/m³)
Extended replacement intervals reduce total wear parts expenditure and decrease maintenance cost per cubic meter of concrete produced.
Precision OEM Bolt Fit
CNC-machined countersunk bolt holes ensure zero bolt head protrusion, preventing blade interference and preventing slurry leaks around bolt joints.
Reduced Unscheduled Downtime
High fracture toughness prevents premature cracking around bolt holes under aggregate drop impacts, keeping your batching plant running smoothly.
Standard & Custom Fabrication
Complete stock of standard drum liner plates for major European and Asian mixer brands, plus rapid custom casting for specialized batching plants.
Applications & Field Use Cases
VOTNE Concrete Mixer Drum Liners are widely specified across severe industrial concrete mixing environments:
- Commercial Ready-Mix Concrete Batching Plants (2.0m³ to 4.5m³ Twin-Shaft Mixers)
- Precast Concrete Factories (Planetary and Counter-Current Pan Mixers for pipe, block, and hollow-core slab production)
- Heavy Infrastructure & Dam Construction Projects (High-impact 40mm to 60mm mass concrete mixing)
- Asphalt & Cold-Recycled Pavement Mixing Plants
- Mining Backfill & Paste Fill Preparation Plants
- Industrial Mortar & Refractory Material Mixing Systems
Frequently Asked Questions (FAQ)
1. How do I confirm VOTNE drum liners will fit my specific concrete mixer?
You can provide your mixer brand (e.g., BHS, SICOMA, Liebherr, Teka, SIMI, ELKON), model number, or existing liner part numbers. Alternatively, send us sample dimensions or CAD drawings, and our engineering team will verify exact bolt hole spacing and radius curvature before production.
2. What is the difference between Cr20 and Cr26 high-chromium liners?
VOTNE Cr20 is our standard high-chromium alloy (62–65 HRC), ideal for general commercial ready-mix concrete. VOTNE Cr26 features 26% chromium and modified molybdenum/vanadium content (63–66 HRC), specifically engineered to resist extreme abrasion when mixing hard quartz sand, crushed granite, or crushed basalt.
3. What bolt torque should be applied when installing drum liners?
For standard M16 Grade 8.8/10.9 countersunk liner bolts, torque to 210–230 N·m. For M20 bolts, torque to 410–450 N·m. Always use polyurethane backing washers and nylon lock nuts, and re-torque all bolts after the first 24 hours (500 m³) of batching operation.
4. Do you support custom OEM liner manufacturing?
Yes. VOTNE provides custom pattern making, sand casting, and CNC machining based on customer samples or 2D/3D CAD drawings. We can adjust liner thickness, bolt hole centers, and alloy compositions to match specialized plant requirements.
5. What are your lead times and international trade terms?
Standard OEM replacement liners are kept in stock for immediate dispatch. Custom casting orders typically take 15 to 25 days. We support EXW, FOB, CIF, and DDP trade terms with global shipping to North America, Europe, South America, the Middle East, and Southeast Asia.