1. Electrical Control System
The electric control system features high automation and stable reliability. Core electrical components adopt international well-known brands including Schneider and LS. The lubrication system applies fully automatic multi-point lubrication technology with independent one-to-one lubrication for each friction point, delivering superior lubrication effect and effectively extending the service life of wearing parts.
2. Hydraulic System
Equipped with a brand-new hydraulic control reversing technology, it ensures more stable pumping performance and lower hydraulic failure rate. Custom special hydraulic valves are configured to realize large flow, low energy consumption and small impact force, further prolonging the overall service life of hydraulic components.
3. Main Oil Pump
The main oil pump is a joint-venture constant power variable plunger pump. The constant power control design effectively prevents overload of motors and diesel engines. It withstands higher pressure and load than conventional gear pumps, ensuring stable and reliable system operation. Built-in overpressure overflow protection functions effectively safeguard the main pump and diesel engine.
4. Power System
For electric fine stone pumps, high-quality domestic Yantai motors and Siemens Baide motors are adopted. For diesel-driven fine stone pumps, high-efficiency and low-consumption power units from Lovol (Tianjin) and Yuchai are equipped.
5. Hopper Device
The hopper adopts an enlarged volume design and is fitted with a fence and vibration motor, fully meeting the pumping requirements of fine stone concrete.
6. Heat Dissipation System
Dual cooling system of air cooling and water cooling is adopted. It adapts to severe cold weather, stably controls hydraulic oil temperature, and guarantees long-term safe and reliable equipment operation.
7. Hydraulic Pipeline & Fittings
Hydraulic hoses are imported from Italy, and all pipe joints adopt Eaton (USA) products. The complete hose and joint assemblies are supplied by Eaton, ensuring zero leakage and high safety of the entire hydraulic system.
8. S-Tube Valve
The S-tube valve is integrally cast of high-manganese steel. Worn surfaces are overlaid with high wear-resistant materials, combining high pressure resistance and strong wear resistance. The inner cavity features smooth transition for unobstructed concrete flow and optimized pumping efficiency. Spline shafts are made of alloy materials with special surface treatment to enhance wear resistance and fatigue resistance.
9. Wear Plate & Cutting Ring
The cutting ring is inlaid with hard alloy, featuring excellent durability and long service life.
Advantages of Full Hydraulic Control System
The fine stone concrete pump is equipped with a full hydraulic control system, which presents prominent practical advantages in construction:
1. Extended Service Life of Components
Full hydraulic control reversing is adopted. The pumping and S-tube distribution reversing actions operate without electric signal participation, reducing reversing impact and working noise, and greatly extending the service life of hydraulic pumps and valves.
2. Higher Equipment Reliability
The full hydraulic control design eliminates intermediate electric control links, greatly improving the overall operation stability and anti-fault capability of the equipment.
3. Lower Failure Rate
A integrated valve plate structure centralizes all main hydraulic valves, reducing cross-connected pipelines. The compact system effectively lowers the risk of oil leakage and mechanical failures.
4. Reduced Maintenance Cost
It removes four easily damaged core parts of the electric reversing system, cutting daily maintenance frequency and later operating costs significantly.
Construction Benefit Comparison: Fine Stone Pump vs. Construction Elevator Transportation
Compared with the traditional method of conveying mortar and fine concrete by construction elevators, the fine stone concrete pump has overwhelming advantages in labor cost, construction efficiency and project duration. Taking a ground construction project in Qingdao as an example: 3 buildings with 32 floors, 12 households per floor, with a total construction area of about 32,000 m².
Scheme 1: Construction with Fine Stone Concrete Pump
Total Staff: 15 workers in total (1 pump operator, 2 mixer operators, 2 cement handlers, 2 ground cleaners, 2 pouring workers, 4 ground leveling workers).
Construction Efficiency: The actual average conveying capacity is 12 m³/h (theoretical output: 20 m³/h). With 8 working hours per day, the daily conveying volume reaches 96 m³.
Daily Construction Area: 1,920 m² (pouring thickness: 5–6 cm), with an average working efficiency of 128 m² per person per day.
Total Project Duration: 17 days.
Scheme 2: Traditional Construction Elevator Transportation
Total Staff: 20 workers in total (2 mixer operators, 2 cement handlers, 2 sand & aggregate handlers, 8 material transporters, 2 cleaners, 4 pouring workers, 2 leveling workers).
Construction Efficiency: Each elevator trip carries 2 transport vehicles; 6 minutes for low floors and 12 minutes for high floors. Single vehicle loading capacity: 0.06 m³.
Daily Construction Area: Only about 460 m² per day, with an average efficiency of merely 21 m² per person per day.
Total Project Duration: 70 days.
Core Advantages Summary
By adopting the fine stone concrete pump, the overall construction period is shortened to 1/4 of the traditional elevator transportation mode. It also greatly cuts labor demand, effectively helping decoration and construction enterprises reduce comprehensive costs and improve project profitability.