The hydraulic cylinder of Hubei Jiaheng Technology Co., Ltd. plays the core power task of high-pressure conveying in concrete pumping equipment, and its performance directly determines the pumping efficiency, system stability, and equipment life. The following are specific application scenarios and Jiaheng's technological breakthroughs:

Application of Core Hydraulic Cylinder in Concrete Pumping Equipment

1. Main pumping cylinder

Function: Drive the reciprocating motion of the conveying cylinder piston to push concrete through the pipeline.

Technical challenges:

High frequency commutation shock;

The peak instantaneous pressure when the concrete piston is reversed is ≥ 45MPa.

Double buffer stepped piston;

Ultrasonic flame spraying WC-10Co4Cr coating on the surface of the piston rod.

2. Swing Hydraulic cylinder of S-pipe valve

Function: Drive the S tube to quickly switch between the conveying cylinders, achieving continuous pumping.

Key requirements:

Accurate positioning;

Resistance to concrete slurry invasion.

Integrated position sensor;

Guide sleeve triple seal: dust scraper ring+seal+anti fouling lip.

3. Arm control cylinder

Function: Multi section boom telescopic, pitching and turning.

Hydraulic cylinder type: multi-stage telescopic cylinder.

Synchronous control technology;

Intermediate frequency quenching and hard chrome plating on piston rod.

4. Mixing system Hydraulic cylinder

Function: Drive the hopper mixing blades to prevent concrete segregation or blockage.

Characteristics of working conditions:

Long term exposure to mortar wear and tear;

Need to overcome the impact of aggregate jamming.

Rolling and strengthening of the inner wall of the cylinder;

The large shaft diameter ratio of the piston rod increases its bending resistance by 40%.

Advantages and characteristics of Jiaheng Hydraulic cylinder

1. Design lifespan of 500000 cycles, equipment overhaul cycle extended by 150%

2. When the volumetric efficiency is ≥ 98%, the pumping volume is increased by 5-8%

3. The reversal time of S tube is 0.15s, and the blockage rate is reduced by 40%

4. The peak pressure resistance is 55MPa, which is suitable for pumping C100 high-grade concrete