Introduction to the 500 Series hydraulic transit mixer gearbox

The Bonfiglioli 500 Series hydraulic transit mixer gearbox represents the global standard for driving concrete transport drums. Engineered to withstand the most extreme working conditions on construction sites, this gearbox combines high-precision planetary transmission with legendary structural robustness. Choosing a 500 Series hydraulic transit mixer gearbox means investing in a successful product capable of ensuring constant and reliable load rotation in every situation.

Thanks to Bonfiglioli’s extensive experience in the concrete sector, this series has been optimized to offer maximum mechanical efficiency while minimizing overall dimensions and facilitating integration onto the vehicle chassis. It is the number 1 solution for transit mixer manufacturers who refuse to compromise on quality.

Valuable technical features for the concrete sector

The true technical value of the 500 Series lies in its capacity to manage high dynamic loads and drum misalignments during transport. A hydraulic transit mixer gearbox must withstand not only the rotation torque but also the stresses transmitted by the loaded drum over uneven terrain.

From the technical specifications in the FP Trasmissioni catalog, fundamental construction details emerge:

• Torque Capacity: The range covers drum volumes from 1 to 14 cubic meters, with output torques that meet the requirements of the heaviest vehicles.

• Integrated Drum Support: The gearbox acts as the main drum support, eliminating the need for complex external support systems.

• Shaft Oscillation: The design allows for a degree of oscillation to compensate for vehicle chassis flex without damaging the gears.

• Hydraulic Motor Flanging: Standard preparation for the most common axial piston motors in the concrete market.

Effectiveness in drum drive control

The use of a 500 Series hydraulic transit mixer gearbox is particularly effective in ensuring concrete homogeneity during transit. The smoothness of the planetary reduction ensures there are no jerks in rotation, preventing material segregation within the drum.

The 500 Series is also considered a successful choice due to its maintainability. The arrangement of oil drains and check points is designed to allow rapid and safe interventions, reducing machine downtime. Superior protection against the ingress of water and cement residue ensures that internal components remain intact even after years of high-pressure washing and intense work cycles.

Design and materials for long-term durability

Every hydraulic transit mixer gearbox is constructed with excellent materials. The spheroidal cast iron housing offers superior mechanical resistance to vibrations and impacts. The planetary gears, the heart of the system, are made of alloy steel and subjected to case-hardening and quenching treatments to minimize tooth flank wear.

This construction approach offers concrete advantages:

1. Extreme Reliability: Designed for continuous work cycles (loading, transport, and unloading).

2. Optimized Dimensions: A compact design that leaves more free space on the truck chassis.

3. Water Pump and Heat Exchanger: Often integrated into the drive system for total equipment management.

Applications and market leadership

The 500 Series hydraulic transit mixer gearboxes are present on the vast majority of vehicles operating in Europe and worldwide. Beyond classic road transit mixers, they find application in self-loading mixers for remote sites and small-scale fixed mixing plants.

Hydraulic precision ensures total control over unloading speed, a fundamental valuable factor when concrete must be poured into narrow formwork or via pumps. The 500 Series transforms hydraulic power into a rotational movement of incredible stability.

Technical support and 3D models with FP Trasmissioni

We support your design and maintenance activities by providing access to 3D model visualization of the hydraulic transit mixer gearbox. This support is essential for verifying mechanical couplings and drum inclination angles.

The technical staff at FP Trasmissioni is at your disposal to assist in selecting the correct size based on the concrete volume to be transported and the specifications of the hydraulic motor. Contact us today for consultancy or to receive the complete technical data for the 500 Series. We are here to ensure that the heart of your mixer is a concentration of efficiency and successful technology.