Electric motor 710 kW, 990 rpm, 400/690 V, H17RL 450X2-6

In energy-intensive production lines, pumping stations and heavy process manufacturing, drive reliability depends on how well the required output fits into the available space. H17RL 450X2-6 delivers high power density for applications where stable operation, reasonable installation-space requirements and consistent performance over long duty cycles are important. In this class, the 900 rpm electric motor performs particularly well where 710 kW must be combined with practical installation into existing drive technology.

In large-factory operation, not only rated output is considered but also how the motor handles starting, load changes and long-term loading without unnecessary service interventions. This asynchronous drive has a rated speed of 990 rpm and torque of 6849 Nm, which helps in applications with significant inertia and a requirement for smooth acceleration. For operators of production systems, it is important that the electric motor in this design supports stable integration into technological assemblies where starts and load changes are part of everyday operation.

900 rpm electric motor for high-load production lines

When designing large drives, it is decisive whether the equipment can maintain output in a compact body without restricting service access. Compact output here means fewer compromises when positioning the motor in the machine room, less intervention in distribution systems and easier connection to downstream mechanical assemblies. In models from the H17RL Compact PRO range, this property is particularly valuable in projects where the OEM manufacturer assembles the complete technological system within a precisely defined space.

High efficiency of 96,1 % and a power factor of 0,86 support economical operation in modes where the motor runs for long hours and energy consumption affects the cost of every production day. A starting ratio of 110 %, breakdown torque of 200 % and starting current of 700 % give drive designers a basis for starting-system design and power-supply sizing. For large factories, this is particularly practical when the electric motor is connected to lines with variable loads and reserve capacity for real operating conditions is required.

Robust cast-iron construction for continuous operation

The cast-iron frame is important in large industrial applications because of its rigidity, vibration damping and resistance to mechanical stress. This is why the motor is well suited to environments where machines operate under heavy duty and unwanted oscillations transmitted to bearings and mountings must be limited. Combined with insulation class F and temperature rise B, this creates a solution that supports longer service life in demanding operating conditions.

The service team also benefits in practice. Lower sensitivity to deformation and stable mounting reduce the risk of premature wear and simplify maintenance planning. 6328C3 bearings on both the DE and NDE sides support reliable operation under long-term load, while copper bars in the rotor cage help transfer energy during starting and steady running. In an environment where manufacturing quality is also assessed according to ISO certificates, this design foundation is a natural choice for standardised deployment.

Voltage selection simplifies connection to existing distribution systems

When modernising production halls, the motor itself is often not the only deciding factor; how quickly it can be adapted to the local voltage system also matters. This model allows the voltage to be selected according to the project, simplifying integration into plant distribution systems and export OEM solutions. In practice, this means fewer interventions in the electrical installation and faster commissioning of the technology.

For system integrators, clarity when designing starting modes is also important. If the motor is connected to pumping units, crushing lines or conveyor systems, the ability to adapt the power supply to the project helps keep the technical solution under control. In this context, the 900 rpm electric motor proves to be a practical foundation for equipment where operating voltage varies according to local conditions and the type of distribution network.

Dimensions and weight suited to heavy drive technology

A weight of 5000 kg and external starting inertia of 699,000 kg·m² indicate that this motor is intended for applications involving a massive mechanical system. A GD² moment of inertia of 72,000 kg·m² also helps when designing the acceleration characteristic, which is important in larger compressors, crushers or mixing equipment. For industrial drive technology, this information is particularly useful when coordinating with gearboxes, couplings and control systems.

Typical industrial use in large systems

The H17RL 450X2-6 model is suitable for technological assemblies requiring a durable motor with a long duty cycle and stable behaviour under load. In practice, it can be used, for example, in the following equipment:

• Main drive of an industrial pump in chemical production.
• Drive motor for a combustion-air fan.
• Mill drive in cement raw-material grinding.
• Motor for a bulk-material conveyor in a mine.
• Drive of a pressing line in a metallurgical plant.
• Mixer motor in sludge-treatment processes.
• Compressor-unit drive in the energy sector.
• Motor for rotary drying equipment in biomass processing.
• Crusher drive in recycling technology.

In each of these applications, precise coordination between the mechanical section, power supply and starting control is decisive. This is why the electric motor is suitable for projects where both the OEM manufacturer and operator expect long-term functionality without unnecessary design modifications. H17RL Compact PRO therefore fits modern industrial assemblies that need strong performance in spaces where every millimetre of installation room matters.

If you need a motor for demanding operation that combines compact output, industrial durability and easier connection to your system, contact us.