​Error <0.1%! How does QGM hydraulic system define a new benchmark for brick-making precision?

[Industry Challenges]

Traditional hydraulic systems have pain points such as large pressure fluctuations (±5%), high energy consumption (accounting for 35% of the total energy consumption of the Block Making Machine), and high temperature and easy leakage, which directly affect the quality of brick molding and production costs.

[QGM Solution]

1. Hardware architecture upgrade

Core components: Italian ATOS proportional valve + German HYDAC sensor + Swiss KAEFER sealing ring, with a pressure resistance of 35MPa;

Pipeline design: ALFAGOMMA three-layer steel wire braided hose is used, the explosion-proof pressure is increased by 3 times, and the service life is extended to 80,000 hours.

2. Intelligent control algorithm

Closed-loop feedback mechanism:

▪ Pressure control: Real-time monitoring of cylinder pressure, dynamic adjustment of proportional valve opening through PID algorithm, fluctuation range ±0.05MPa;

▪ Position synchronization: Double cylinder displacement error <0.1mm, ensuring uniform force on the mold.

Energy-saving mode: Automatically switch to low-pressure cycle in standby mode, reducing energy consumption by 60%.

3. Extreme environment adaptation

High temperature protection: The oil temperature cooling system can maintain the oil temperature ≤45℃ in a 50℃ environment to avoid pressure decay caused by viscosity drop;

Dust-proof design: The hydraulic station has an IP65 protection level, which effectively blocks dust from entering and is suitable for harsh working conditions such as around mines.

[Comparison of measured data]

Indicators	Traditional system	QGM hydraulic system	Improved effect
Pressure control accuracy	±5%	±0.1%	98%
Single brick hydraulic energy consumption	1.2kW·h	0.75kW·h	37.5%
System failure rate (year)	15 times	2 times	86.7%

[Global application cases]

●Pakistan Karachi Expressway Project:

The QGong ZN1200 equipment is used to produce curbstones, and the average daily output is increased to 48,000 pieces, helping the project to be completed 3 months ahead of schedule;

●Kazakhstan Almaty Municipal Engineering:

Under an extremely cold environment of -30℃, it has been running continuously for 2000 hours without any faults, and the brick body qualification rate is 99.3%.

[Technology Evolution]

From the first generation of open-loop hydraulic system in 2015 to the third generation of intelligent servo system in 2024, QGM has solved the problem of "pressure pulsation under high-frequency vibration" through more than 200 pressure-flow coupling experiments, and the related technology has obtained 3 national invention patents.