Twin Shafts Concrete Mixer

The power source of the equipment is a heavy-duty motor, combined with a pulley and a high-precision reducer to form a complete drive system. Once the motor outputs power, the torque is adjusted and the speed is stabilized through the reducer. The power is then transferred synchronously via a torque distributor to drive the two horizontal mixing shafts to rotate at a uniform speed in opposite directions.

This transmission mode ensures balanced dual-shaft power output and synchronous operation. Even under high-load conditions, such as mixing heavy concrete or low-slump dry-hard concrete, it provides stable drive without power insufficiency or shaft jamming.

As the core mixing mechanism, the twin shafts, mixing arms, and blades are critical for material blending. The mixing shafts are made of high-strength steel and treated with professional heat-treatment technology. These processes enhance their excellent torsional and compressive resistance to prevent deformation or breakage during continuous heavy-duty operation.

The reinforced mixing arms are staggered along the shafts and support 60° and 90° installation angles. They can adjust the mixing turbulence zone based on material characteristics. Equipped with thickened Ni-Hard wear-resistant cast iron blades, their impact and wear resistance are far superior to ordinary steel.

As the shafts rotate, the mixing arms and blades drive the materials to form a three-dimensional circulating trajectory. The materials at the bottom and middle are continuously turned upward while moving back and forth along the axial direction, shearing and squeezing each other.

The intersecting zone of the two shafts forms an overlapping turbulent area, ensuring that cement, aggregates, water, and admixtures are mixed rapidly and thoroughly. This prevents problems such as uneven dry material distribution, clumping, or segregation. The structure easily handles large aggregates up to 150mm and adapts to various complex concrete mix designs.

During operation, the shaft-end sealing system and automatic lubrication system provide continuous protection. The machine utilizes a six-layer shaft-end sealing technology with a labyrinth grease-storage structure, combined with an external bearing design to effectively block the penetration of cement slurry and dust.

The standard fully automatic centralized lubrication system accurately supplies grease to the four shaft ends independently to form a stable protective layer. Meanwhile, the sealed sections are equipped with monitoring sensors to track operational status in real-time and provide early warning of potential failures.

Upon completing the designated mixing cycle, the hydraulic discharging system is started. The equipment features a large hydraulic discharge door, which precisely controls the discharging speed and volume. The discharge process is smooth with minimal residual material left in the chamber, which not only ensures consistent quality for each batch of concrete but also shortens production intervals.

This is the primary application scenario for the equipment. It can continuously and stably produce various grades of commercial concrete, meeting the standardized material demands of urban construction and municipal engineering. Its high output and high stability perfectly match the large-scale, uninterrupted production models of concrete batching plants.[内链]

It produces specialized concrete for precast components such as precast slabs, beams, columns, roof tiles, permeable bricks, and concrete pipes. The high mixing uniformity ensures consistent density and strength in the precast elements. Additionally, it is highly suited for specialty precast concrete mixes like dry-hard and self-consolidating concrete.

Beyond standard concrete, the equipment can also blend clay bricks, glass-ceramic raw materials, construction mortar, self-leveling mortar, and other materials. With zero mixing dead zones and precise material proportioning, it meets the diversified production needs of small and medium-sized building material processing plants.

It is widely utilized in national large-scale projects such as highways, bridges, airports, tunnels, hydroelectric power stations, and dams. It effectively handles large-aggregate concrete and low-slump crushed stone concrete, meeting high-strength, high-load engineering material standards, and satisfying continuous construction demands under complex outdoor working conditions.