Mixer Mixing Blade
Technical Specifications
Key Attributes
| Product Name | Mixer Mixing Blade / Concrete Mixer Paddle Shovel |
| Material Grade | Cr26 High-Chromium Alloy, PTA Tungsten Carbide Overlay (W2C/WC) |
| Hardness Rating | 62 – 66 HRC (Tungsten Matrix 68–72 HRC / 1800–2200 HV) |
| Tip-to-Liner Clearance | 3.5mm – 5.0mm Precision Slotted Hole Adjustment |
| Primary Function | 3D Slurry Shearing, Agitation & Rapid Homogenization |
| Machine Compatibility | BHS, SICOMA, Liebherr, Teka, SIMI, ELKON, MEKA, Linz |
| Casting & Hardfacing Process | Vacuum Sand Casting & Plasma Transferred Arc (PTA) Weld Overlay |
| Brand Name | VOTNE |
| Place of Origin | China |
| Blade Thickness | 20mm, 25mm, 30mm (Customized) |
| SEO Keywords | mixer mixing blade, concrete mixer blade, BHS mixer blade, SICOMA mixing blade, high chromium paddle, tungsten carbide wear blade, concrete wear parts |
Product Overview
VOTNE Mixer Mixing Blades are heavy-duty wear-resistant paddles engineered specifically to transmit intense shearing forces to dense aggregate mixtures inside twin-shaft, planetary, and pan concrete batching mixers.
Mounted on mixing arms rotating at high speeds, mixing blades are subjected to extreme micro-cutting abrasion from sharp quartz sand, high sliding friction from coarse gravel (40mm to 60mm stone), and continuous slurry erosion. When low-grade steel blades suffer rapid tip recession, the tip-to-liner clearance widens beyond 10mm. This results in severe slurry slipping, longer mixing cycles, increased electrical power consumption per batch, and unmixed aggregate pockets. VOTNE mixing blades utilize ultra-hard Cr26 high-chromium alloy casting metallurgy (62 to 66 HRC), forming a dense concentration of discontinuous M7C3 eutectic carbides (1500 to 1800 HV) bound inside a tempered martensitic matrix. For severe high-abrasion applications mixing crushed granite or iron slag, VOTNE offers optional Plasma Transferred Arc (PTA) Tungsten Carbide (W2C/WC) hardfacing along the leading edge.
Designed with CNC-milled slotted mounting bolt holes for precise 3.5mm to 5.0mm clearance tuning, VOTNE mixing blades deliver up to 3 times longer service life, maintaining rapid 98%+ mix homogeneity and lowering your total cost per cubic meter.
Material & Hardfacing Selection
| Alloy Grade | Hardfacing Tech | Hardness | Microstructure | Best Application |
|---|---|---|---|---|
| VOTNE PTA Tungsten Carbide | W2C/WC Carbide Matrix | 68 - 72 HRC (2200 HV) | Tungsten Carbide Particles in Ni-Cr | Extreme Silica Sand & Crushed Granite Aggregates |
| VOTNE Cr26 Super High-Cr | Solid Cast High-Cr | 63 - 66 HRC (1800 HV) | Discontinuous M7C3 Carbides | Commercial Ready-Mix & Precast Concrete Plants |
| VOTNE Cr20 Standard High-Cr | Solid Cast High-Cr | 62 - 64 HRC (1500 HV) | Primary Chromium Carbides | Light-Duty Batching Mixers & Mortar |
Technical Specifications & Dimensions
| Mixer Brand / Model | Blade Type | Standard Thickness | Mounting Bolt Hole Spec | Approx. Weight (kg) |
|---|---|---|---|---|
| BHS DKXS 2.0 / 3.0 | Central / Side Mixing Blade | 25mm / 30mm | M20 Countersunk Slotted | 14.5 kg |
| SICOMA MAO 2250 / 3000 | Standard Mixing Paddle | 20mm / 25mm | M18 Countersunk Slotted | 11.8 kg |
| Liebherr DW 2.25 / 3.0 | Heavy-Duty Mixing Shovel | 25mm / 30mm | M20 Countersunk Slotted | 16.2 kg |
| TEKA TPZ 1500 / 2250 | Planetary Mixing Blade | 20mm / 25mm | M16 Countersunk Slotted | 10.4 kg |
| Custom OEM Drawings | Custom Mixing Blade | 20mm - 35mm | As Per CAD Drawing | Custom |
Key Advantages for Plant Operators
Rapid 98%+ Mix Homogeneity
Optimized 3D fluid shearing geometry accelerates cement binder dispersion, achieving complete mix uniformity in under 30 seconds.
High Scratching & Micro-Ploughing Resistance
High-density M7C3 carbides (or optional PTA Tungsten Carbide hardfacing) resist severe quartz aggregate abrasion along leading edges.
Slotted Hole Clearance Tuning
CNC-milled slotted mounting holes allow maintenance crews to adjust tip-to-liner clearance back to 3.5mm as liners wear down.
Lower Energy Consumption per Batch
Maintaining sharp leading edge profiles prevents slurry slipping, reducing drive motor electrical energy consumption by up to 0.25 kWh/m³.
Standard & Custom OEM Stock
Direct replacement mixing blades in stock for major European and Asian mixer brands, with rapid custom casting available.
Applications & Field Use Cases
VOTNE Mixer Mixing Blades are widely specified across heavy-duty industrial concrete batching operations:
- Commercial Ready-Mix Concrete Batching Plants (Twin-Shaft Mixers 1.0m³ to 4.5m³)
- Precast Concrete Production Facilities (Planetary and Counter-Current Pan Mixers for pipe, beam, and precast slab casting)
- High-Impact Infrastructure & Dam Construction Projects (Mass concrete mixing with 40mm to 60mm aggregate)
- Cold Recycled Pavement & Road Base Mixing Plants
- Mining Paste Fill & Underground Backfill Preparation
- Heavy Refractory & Industrial Chemical Mixing Equipment
Frequently Asked Questions (FAQ)
1. Why is maintaining a 3.5mm to 5.0mm tip-to-liner clearance critical for mixing blades?
When blade tips wear down and clearance exceeds 8.0mm, unmixed aggregate slurry slips under the blade rather than being lifted into the 3D mixing vortex. This extends required mixing cycle times, increases electrical power draw, and causes uneven liner wear. Slotted mounting holes allow technicians to adjust blades back to 3.5mm clearance.
2. What is the difference between Cr26 high-chromium and PTA Tungsten Carbide mixing blades?
VOTNE Cr26 high-chromium (62–66 HRC) is our standard high-wear casting alloy, offering exceptional performance in commercial ready-mix plants. VOTNE PTA Tungsten Carbide hardfaced blades feature a 3mm to 5mm layer of spherical W2C/WC tungsten carbide (68–72 HRC / 2200 HV) welded along the leading edge, increasing wear life by up to 250% in crushed granite or silica sand plants.
3. What bolt torque should be applied when mounting mixing blades?
For M16 Grade 10.9 countersunk bolts, torque to 210–230 N·m. For M18 bolts, torque to 330–360 N·m. For M20 bolts, torque to 410–430 N·m. Always use polyurethane backing washers and nylon lock nuts to absorb aggregate impact vibration.
4. Can VOTNE manufacture custom mixing blades for non-standard or older mixers?
Yes. VOTNE produces custom mixing blades based on customer sample castings or 2D/3D CAD drawings. We can customize blade length, width, curvature, mounting hole centers, and alloy hardfacing patterns.
5. What are your lead times and trade terms for export orders?
Standard replacement mixing blades for BHS, SICOMA, Liebherr, and Teka mixers are kept in stock for immediate shipment. Custom casting orders take 15 to 25 days. We support EXW, FOB, CIF, and DDP trade terms with global delivery.