1000kg/Batch Dry Mortar Mixer Machine Gravity Free Double Shaft Mixer

Double-shaft Gravity-free Mixer is a high-efficiency, low-stratification industrial dry powder mixing equipment specially optimized for full-automatic dry mortar production lines. Adopting twin-shaft counter-rotating paddle stirring structure, the equipment creates a continuous weightless fluidization mixing zone inside the cylinder, which effectively eliminates material gravity stratification, particle segregation and uneven mixing problems caused by different specific gravity, particle size and fluidity of raw materials.

As the core host equipment of dry mortar production systems, this mixer supports batch rapid mixing of cement, quartz sand, mineral powder, fiber additives and various functional raw materials. With short mixing cycle, ultra-high mixing uniformity, stable operation and low residual rate, it perfectly matches the supporting use of NE series bucket elevators, batching systems and packaging machines. It is widely applicable for mass production of various ordinary and high-end customized dry mortar products, and is the mainstream standard mixing equipment for modern standardized mortar factories.

• 1. Gravity-free Fluidization Mixing & Ultra-high Uniformity

  The twin-shaft counter-rotating staggered paddles form a dynamic weightless mixing zone, enabling all materials to achieve three-dimensional floating, tumbling and cross convection mixing in a short time. It completely avoids component stratification and segregation, even for materials with huge differences in particle size and specific gravity. The mixing uniformity reaches over 98.5%, ensuring stable and consistent formula proportioning of finished mortar and effectively improving product quality stability.

• 2. Super Short Mixing Cycle & High Production Efficiency

  Compared with traditional single-shaft mixers and ribbon mixers, the double-shaft gravity-free structure realizes rapid homogenization mixing. A single batch of mixing can be completed within 3–5 minutes, with continuous cyclic feeding and discharging. The production efficiency is increased by more than 40%, perfectly matching the high-speed operation rhythm of large-scale automated dry mortar production lines and greatly improving overall line output.

• 3. Low Residual & Self-cleaning Structure Design

  The optimized cylinder inner wall and paddle layout with zero dead-angle design effectively reduces material adhesion and accumulation. Equipped with a professional self-cleaning device, it thoroughly cleans residual materials during discharging. The overall material residual rate is lower than 0.05%, avoiding cross-contamination between different mortar formulas and meeting the flexible production requirements of multi-variety mortar products.

• 4. Low Energy Consumption & Energy-saving Operation

  The driven system adopts optimized power matching and low-resistance paddle design, which greatly reduces invalid power consumption. Under the same mixing volume and efficiency, the comprehensive energy consumption is 30%–50% lower than that of traditional mixing equipment. It supports long-term continuous industrial operation, effectively reducing production power cost and improving comprehensive economic benefits.

• 5. Heavy-duty Reinforced Structure & Long Service Life

  The whole machine adopts thickened steel plate welding structure, equipped with high-strength wear-resistant alloy paddles and anti-fatitude transmission shaft. The core transmission parts are matched with heavy-duty hard-tooth reducer, featuring strong impact resistance, wear resistance and stable load-bearing performance. It adapts to long-term uninterrupted heavy-load production, with low failure rate and ultra-long service life.

• 6. Fully Sealed & Dust-free Environmental Protection

  Adopting full-body sealed structure with reliable shaft end sealing device and reserved dust removal interface, there is no dust overflow or material leakage during the whole mixing and operating process. It fully complies with industrial environmental protection standards, keeps the workshop clean and dust-free, and meets the green and standardized production requirements of modern dry mortar enterprises.

• 7. Wide Adaptability & Flexible Configuration

  It can stably mix various powdery, granular and fibrous materials, covering ordinary masonry mortar, thermal insulation mortar, self-leveling mortar, wear-resistant floor mortar, crack-resistant mortar and other full-series dry mortar products. It supports manual, pneumatic and automatic discharging modes, and can be customized with intelligent control system to adapt to different production scale and process requirements.

The double-shaft gravity-free mixer has multiple standard models to match small, medium and large dry mortar production lines. The mainstream universal industrial parameters are as follows:

• 1. Pre-operation Inspection & Preparation

  Before startup, comprehensively check the tightness and wear of double shafts and stirring paddles to ensure no looseness, deformation or damage. Inspect the sealing parts, feeding ports and discharging doors to confirm complete sealing without gaps and dust leakage. Check the lubrication status of the reducer and bearing components, and clean foreign matters inside the mixing cylinder to avoid equipment jamming and abnormal noise during operation.

• 2. Standard Startup & Feeding Sequence

  Adopt no-load startup specification: start the mixer first and run stably for 1–2 minutes before feeding materials. It is prohibited to start with full load to avoid motor overload and transmission component damage. Feed materials in strict accordance with the formula proportion, maintain uniform and continuous feeding, and prohibit overloading feeding beyond the rated volume to ensure sufficient mixing space and uniform mixing effect.

• 3. Strict Operation Specifications During Mixing

  It is forbidden to open the equipment cover or reach into the mixing cylinder during operation to avoid safety accidents. Do not add hard foreign matters such as iron blocks and stones into the materials to prevent paddle collision, shaft deformation and equipment failure. For mortar products containing fiber additives, control the feeding speed to avoid fiber agglomeration and ensure uniform dispersion.

• 4. Standard Discharging & Shutdown Management

  After the mixing cycle is completed, open the discharging door thoroughly to discharge materials completely, and avoid long-term material accumulation inside the cylinder. Clean residual materials in time after each batch production to prevent material caking and cross-contamination. Shut down the equipment only after all materials are discharged, and prohibit sudden shutdown with materials inside the machine.

• 5. Daily Maintenance & Regular Inspection

  Regularly lubricate the double transmission shafts, bearings and reducer to ensure flexible transmission. Regularly check the wear degree of wear-resistant paddles and replace severely worn parts in time to avoid affecting mixing uniformity. Clean the dust and residual materials inside the equipment regularly, and inspect the sealing performance frequently to ensure long-term dust-free and stable operation of the equipment.

• 1. Full-series Dry Mortar Production

  It is the core mixing equipment for all kinds of dry mortar products, including wear-resistant flooring mortar, thermal insulation mortar, self-leveling mortar, crack-resistant mortar, waterproof mortar, masonry mortar and plastering mortar. It meets the high-precision mixing requirements of ordinary and high-end customized mortar products.

• 2. Building Material Powder Processing Industry

  Suitable for uniform mixing of various building powder materials such as fly ash, lime powder, mineral powder and quartz sand powder. It is widely used in standardized building material factories and powder processing workshops to support automated batching and mixing production.

• 3. Chemical & Industrial Powder Mixing

  Applicable for mixing powdery and granular chemical raw materials, building additives, industrial auxiliary materials and other products. The high-uniformity mixing performance meets the precise formula mixing requirements of chemical industry and new material industry.

• 4. New Material & Environmental Protection Industry

  Suitable for mixing new environmental protection building materials, thermal insulation materials, powder coatings and other new material products, adapting to multi-formula, multi-batch and high-precision production modes.

• 5. Light Industrial & Grain Powder Processing

  It can also be used for mixing grain powder, feed additives and light industrial powder materials, with wide material adaptability and stable mixing effect.

• Q1: What is the advantage of double-shaft gravity-free mixer over traditional single-shaft mixer?

  A1: Traditional single-shaft mixers are prone to material stratification, dead mixing angles and low uniformity. The double-shaft gravity-free mixer forms a weightless fluidization zone through counter-rotating twin shafts, realizing full dead-angle-free mixing with uniformity over 98.5%. It has shorter mixing cycle, higher efficiency, lower residual rate and energy consumption, and is more suitable for high-standard automated dry mortar mass production.

• Q2: Why does the finished mortar have uneven mixing and component segregation?

  A2: The main reasons include insufficient mixing time, uneven feeding speed, severe paddle wear and residual material caking inside the cylinder. Extending the mixing cycle appropriately, standardizing feeding operation and regularly replacing worn paddles and cleaning the cylinder can completely solve the uneven mixing problem.

• Q3: How to solve dust leakage and material residual problems?

  A3: Dust leakage is mostly caused by aging and damage of sealing parts, which can be solved by replacing sealing accessories regularly. Material residual is caused by incomplete discharging and wall adhesion. Timely cleaning after production and regular maintenance of self-cleaning devices can effectively reduce residual rate below 0.05%.

• Q4: What types of mortar products is this mixer suitable for?

  A4: It covers all conventional dry mortar products, especially suitable for high-precision products such as wear-resistant floor mortar, self-leveling mortar and thermal insulation mortar with strict requirements on uniformity and formula stability. It supports flexible switching production of multiple mortar formulas with strong versatility.

• Q5: What is the service life of core wearing parts?

  A5: Under standard operation and daily maintenance, the wear-resistant stirring paddle has a service life of 2–3 years, and the transmission shaft and reducer can operate stably for more than 6 years. The overall failure-free operation time reaches 35,000 hours, with low comprehensive maintenance cost and high operational stability.

• Q6: Can it be matched with NE series bucket elevators?

  A6: Fully adaptable. The double-shaft gravity-free mixer has complete model matching with NE15/NE30/NE50/NE100 bucket elevators. It can form a fully automated feeding-mixing-discharging production system, realizing synchronous and stable operation of the whole dry mortar production line and improving overall production automation level.