Electric Motors

Electric motors for tail gates – Drive units for precise hydraulic systems

In daily operation of a tail gate, the electric motor performs a central function. It provides the mechanical energy required for all lifting, lowering and closing movements and forms the core of the hydraulic drive of modern tail gates and lift gates. Electric motors must operate reliably and ensure consistent power transmission, as they are directly connected to the hydraulic pump. In this category, you will find electromechanical drive units designed for the technical requirements of established hydraulic systems. SULEJ Ladebordwand relies on tested and durable components that ensure stable and reproducible performance in professional use.

Energy transfer in the hydraulic drive – From the motor to linear movement

The electric motor converts the electrical energy from the vehicle's power supply into rotational movement. This powers the hydraulic pump, which pressurizes the hydraulic oil and feeds it into the hydraulic system of the tail lift. There, the pressure is transformed into linear motion, enabling smooth and controlled lifting and lowering. The coordinated interaction between motor, pump and control unit is decisive for stable movement sequences and reliable power transmission.

Designs and variants – Technical configurations for different vehicle classes

Electric motors differ in power output, design and electrical configuration. Vans and light commercial vehicles predominantly use 12-volt drive units, while tail gates on heavy vehicles are typically equipped with 24-volt motors. In addition, overall length, rotation direction, bearing design, type of pump coupling and the structural properties of the motor housing vary. Differences also arise in thermal behaviour, protection classes and the design of windings and bearings. Many electric motors commonly used in the market come from manufacturers such as Mahle, Iskra, Letrika, Hydro-Tek, HYDAC, Rexroth (Oilsistem) or Bucher. The choice of a suitable motor depends on electrical voltage, performance data, rotation direction, pump compatibility and mechanical mounting points. Only the match of all relevant parameters guarantees reliable and thermally stable operation of the complete hydraulic drive.

Maintenance and inspection – Operating the electric motor on the lift gate reliably

Regular inspections are essential to ensure that the electric motor on the lift gate can provide its performance reliably over the long term. Electrical connections must be free from corrosion and contact resistance, as these can impair system performance. Carbon brushes and the commutator should be checked during routine maintenance intervals and replaced if necessary. A visual inspection of the motor housing for moisture, damage or unusual temperature development also helps to detect deviations at an early stage. Careful maintenance protects both the motor and the connected hydraulic pump from follow-up damage.

Manufacturing quality and material strength – Components for high loads

The performance of the drive system is significantly influenced by the quality of its core components. Precisely wound copper windings, robust housings, durable bearings and reliable sealing systems ensure consistent power transmission and low heat generation during operation. SULEJ Ladebordwand uses tested components with high material and manufacturing precision, ensuring stable function of the tail gate or lift gate even under fluctuating loads and intensive operation.

Advantages at a glance – Robust technology for stable movement sequences

• Consistent performance for all hydraulic movements
• Robust construction for minimal downtime
• Stable coordination between motor, hydraulic pump and control unit
• Efficient power consumption for professional applications
• Long service life due to precisely manufactured components

The electric motors offered here are designed for common tail gates and lift gates and support reliable function of the hydraulic drive system in daily operation.

Frequently asked questions about electric motors on tail gates and lift gates (FAQ)

Which electric motor fits my tail gate?

Key factors include operating voltage, performance data, rotation direction, pump coupling and the available mounting points. These parameters must match the existing system to ensure reliable operation.

How can I recognize a defect in the electric motor?

Typical signs include slower lifting movement, irregular noises, unusual heating or repeated fuse activation. Such symptoms indicate restrictions in the drive system.

Can I replace the motor myself?

Replacement is technically possible but should be carried out professionally. Before beginning any work, the system must be fully disconnected from power to ensure the safety of the tail lift or lift gate.

What is the difference between 12-volt and 24-volt motors?

12-volt motors are mainly used in light commercial vehicles, while 24-volt motors are designed for heavy trucks and offer higher power reserves at the same current level.

How can the service life of an electric motor be extended?

Regular inspection of electrical connections, cleaning, checking carbon brushes and monitoring temperature development increase operational reliability and reduce maintenance requirements of the entire hydraulic drive.