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### Drum mixer
The drum mixer is a common mixing equipment, which mainly achieves material mixing through the rotation of the drum.
#### **I. Working principle**
The core component of the drum mixer is a rotatable cylindrical drum, and the inner wall of the drum is usually provided with blades or convex structures. When working, the drum rotates around the horizontal or inclined axis, and the material is pushed, thrown and rolled in the drum by the **blades**, accompanied by the interaction of gravity and friction, so as to achieve uniform mixing.
*The mixing drum is biconical. There are two pairs of high and low pieces welded into the drum. They are arranged in a crossway and
form an included angle with the axis of the mixing drum.
*.A pair of discharge blades are welded inside the discharge cone of
*The motor drives the gear ring through the reducer to rotate the mixing drum
*Two-stage helix gear reducer
*The forward and reverse rotation of the shaking cylinder is realized by the motor commutation.
#### **II. Structural composition**
1. **Drum body**: cylindrical barrel, mostly made of metal (such as stainless steel, carbon steel), which must have wear resistance and sealing properties.
2. **Drive device**: including motor, reducer and transmission gear, used to drive the drum to rotate.
3. **Support device**: support wheel or bearing, supporting the drum and ensuring its smooth rotation.
4. **Feed/discharge port**: used for adding and discharging materials. Some equipment is equipped with sealing devices to prevent dust leakage.
5. **Control system**: adjust parameters such as drum speed and running time.
#### **III. Classification and application scenarios**
##### **Classification by mixing method**
1. **Free-fall drum mixer**
- **Features**: When the drum rotates, the material is repeatedly thrown down by its own gravity to achieve mixing. It is suitable for mixing materials with good fluidity and large aggregate particle size** (such as concrete, sand and gravel).
- **Application**: construction sites, concrete mixing plants, mining material mixing, etc.
2. **Forced drum mixer**
- **Features**: The drum is equipped with mixing blades, which force the material to mix through the blades. The mixing efficiency is high and the uniformity is good. It is suitable for **viscous or dry hard materials** (such as cement mortar, refractory materials).
- **Application**: fine mixing scenarios in industries such as chemicals, food, and building materials.
##### **Classification by installation method**
- **Fixed**: Installed on a fixed base, commonly used in factories or mixing plants.
- **Mobile**: Equipped with a walking device, it can be flexibly moved and is suitable for construction sites or temporary operations.
| SPECIFICATIONS FOR JZM Drum Mixer | |||||
| Model no. | JZM350 | JZM400 | JZM450 | JZM500 | JZM750 |
| Loading volume(L) | 560 | 640 | 720 | 800 | 1200 |
| Unloading volume(L) | 350 | 400 | 450 | 500 | 750 |
| Productivity(m³/h) | ≤13 | ≤15 | ≤17 | ≤19 | ≤25 |
| Maximum aggregate size ( mm) | 60 | 60 | 60 | 60 | 60 |
| Drum mix speed(m/min) | 15 | 15 | 15 | 15 | 12.36 |
Ningdu Xingye Machinery Manufacturing Co., Ltd.
is a concrete batching plant manufacturer with 15 years of professional production experience. We are one of the largest concrete batching plant manufacturers in China.
The company has developed rapidly in recent years, and our new plant was completed and put into production in 2023, with a total area of 20,000 square meters.
We have a professional design team that can design various concrete mixing equipment for different customers.
At the same time, we also have a strict quality inspection team.
Excellent after-sales installation team makes our products exported to all over the world.
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