How Does A Hydraulic System Achieve Millimeter-level Precise Control?

As the "power bearer" in the field of construction machinery, every effortless operation of the BOB-LIFT crane is inseparable from the strong support of its core "heart" - the hydraulic system.

The working principle of the hydraulic system

Power transmission closed loop

Engine → Hydraulic pump → Control valve group → Actuator (cylinder/motor) → Load movement

Key performance indicators

Working pressure: 35MPa high-pressure system

Flow control accuracy: ±2%

Response time: < 0.5 seconds

Three core technological breakthroughs of BOB-LIFT

Load sensitive pump technology

Real-time perception of load changes and automatic adjustment of output flow

The measured energy-saving effect has been increased by 40%

Electro-hydraulic proportional control

High-frequency response proportional valves (controlled by 0-10V signals) are adopted

The positioning accuracy reaches ±1mm

Intelligent buffer system

An original end deceleration algorithm

Effectively eliminate 92% of hydraulic shock

Common Fault Early warning and Handling

Symptom 1: Slow movement

Possible cause: Clogged filter element (must be replaced every 500 hours)

Symptom 2: Excessively high oil temperature

Solution: Check the cleanliness of the radiator fins

Symptom 3: Stress fluctuations

Quick diagnosis: Use a pressure tester to troubleshoot

Comparison of measured data

Comparison item: BOB-LIFT: Industry average

Control accuracy: ±1mm, ±5mm

Energy consumption index: 0.8L/t, 1.3L/t

Continuous operation: no attenuation after 8 hours; performance drops by 15% after 6 hours

The upgrade direction of the new generation of hydraulic systems

Electrification: Driven by permanent magnet synchronous motors

Digitalization: 5G remote real-time monitoring

Intelligence: AI Fault prediction system

BOB-LIFT has always been committed to core technological innovation, injecting powerful and reliable "heart power" into every crane!