How can heavy machinery break through the power bottleneck? Revealing the hard-core strength of the FGM series hydraulic motors

In the construction sites where engineering machinery roars, the mining faces deep in the mines, and the hoisting sites at the port terminals, the hydraulic motors are the core components of power transmission, and their performance directly determines the operating efficiency and stability of the equipment. However, traditional hydraulic motors have long faced problems such as low efficiency, severe heat generation, and limited adaptation scenarios, becoming a “neck-stuck” link that restricts the upgrade of heavy machinery. The FGM series hydraulic motors launched by Ningbo Fleger Transmission Co., Ltd., with a series of technological breakthroughs, provide a new solution for these industry pain points.

The “dilemma” of traditional hydraulic motors: the dual challenges of efficiency and adaptation

The operating environment of heavy machinery is complex and changeable, and the requirements for hydraulic motors are extremely stringent. Traditional products often have three major pain points:

Large energy loss: Insufficient mechanical efficiency and volumetric efficiency result in a large amount of energy converted into heat, which not only increases fuel consumption, but also frequently shuts down due to overheating, affecting construction progress.

Poor adaptability to working conditions: Different equipment (such as crane winches, excavator slewing mechanisms, and mine car crawler drives) have huge differences in torque and speed requirements. Traditional motors are difficult to take into account and need to frequently change models, increasing costs and maintenance difficulties.

Insufficient stability: Under high pressure and high load conditions, internal parts are prone to wear, resulting in frequent failures, especially in extreme environments such as ships and coal mines, where reliability is more difficult to guarantee.

These problems have made the industry urgently need a “high-efficiency, universal, and durable” hydraulic motor.

FGM series hydraulic motor: Redefining the “power standard” of heavy machinery

As the core product of Ningbo Fleger Transmission Co., Ltd., the FGM series hydraulic motor is a swing cylinder crankshaft radial piston motor designed for heavy equipment. Its design concept and performance parameters directly target the pain points of the industry.

1. High efficiency and low consumption: from “waste” to “precise transmission”

The FGM series has raised mechanical efficiency and volumetric efficiency to a new level through precise structural design. The core is the optimized matching of the plunger assembly and the motor crankshaft, which reduces internal friction and oil leakage, and reduces energy loss by more than 30%. Taking the FGM05-40 model as an example, its rated torque is 125N・m, and the unit torque is 6.25N・m/MPa. Under the condition of continuous speed of 1-700r/min, it can output power stably and significantly reduce heat generation. This high-efficiency feature not only reduces equipment fuel consumption, but also extends continuous operation time. It is particularly suitable for scenes such as port machinery and agricultural machinery that need to run for a long time.

2. Full scene coverage: from “single adaptation” to “one machine for multiple uses”

The FGM series achieves precise matching of different working conditions through a rich model matrix. From small equipment to large equipment, from low speed and high torque to high speed flexible drive, there are corresponding solutions:

Small working conditions: such as FGM05-60 (theoretical displacement 59mL/r), rated torque 188N・m, suitable for winch drive of light crane, speed 1-700r/min, fast response.

Medium-duty working condition: FGM2-300 (theoretical displacement 304mL/r) rated torque 950N・m, unit torque 47.5N・m/MPa, adapted to excavator slewing mechanism, stable operation at 1-500r/min speed.

Large-duty working condition: FGM7-4300 (theoretical displacement 4298mL/r) rated torque 13680N・m, unit torque 684N・m/MPa, specially designed for wind power hoisting, large crushers and other ultra-heavy equipment, stable performance under low speed and high load.

This full-scenario adaptability allows one motor to cover multiple fields such as construction machinery, ship machinery, coal mining machinery, etc., greatly reducing the selection and maintenance costs of equipment manufacturers.

3. Durability in extreme environments: from “frequent failures” to “stable and reliable”

The FGM series has passed strict certification and process upgrades to ensure reliability in extreme environments. The product has passed the CCS certification of China Classification Society and ISO9001:2015 quality system certification, and every step from raw materials to finished products has been strictly tested. For example, its internal parts are made of high-strength alloy materials, which can withstand a peak pressure of 25MPa (rated pressure 20MPa). In the high humidity of ships and the dusty environment of coal mines, the sealing and corrosion resistance are excellent, and the failure rate is far lower than the industry average.

Behind the technological breakthrough: “double guarantee” of innovative design and manufacturing

The excellent performance of the FGM series is derived from Ningbo Flege’s product concept of “innovative design and lean manufacturing”.

On the design side, the R&D team takes “innovation, practicality, reliability, economy, and market guidance” as the core, and optimizes the motor structure in combination with the operating characteristics of different industries. For example, the output shaft provides a variety of connection forms such as rectangular external splines and involute internal splines, which can be directly adapted to the transmission system of different equipment to reduce modification costs.

On the manufacturing side, the company has professional testing equipment such as motor test benches and torque test benches. Each product undergoes rigorous performance testing before leaving the factory to ensure that the parameters meet the standards. At the same time, the technical research and development department has established a sound management system, which can provide customized technical services according to customer needs, and further improve the matching degree between products and specific working conditions.

Conclusion: From “power core” to “industry empowerment”

The launch of the FGM series hydraulic motors not only solves the efficiency and adaptation problems of traditional products, but also promotes the upgrading of the heavy machinery industry with technological innovation. It is widely used in engineering machinery, ship machinery, wind power generation and other fields, confirming the business policy of “survival by quality and development by innovation”. For equipment manufacturers, choosing the FGM series means lower energy consumption, more flexible adaptation and more reliable operation – this is exactly the confidence of Ningbo Flag-up Transmission Co., Ltd. to become a “benchmark enterprise for core components of China’s equipment industry”.