As an emerging technological innovation enterprise in the hydraulic industry, Ningbo Flag-up Hydraulic Co., Ltd. has been deeply involved in the field of engineering machinery hydraulics for more than ten years, relying on the industrial resources of Zhejiang Provincial Industrial Park and a 20,000 square meter manufacturing base. It has launched a series of pilot control valve products.

1. Full range of product matrix, covering multiple equipment needs

Special model for small and micro excavators

Electric proportional output pilot handle: maximum pressure 50 bar, rated flow 20 L/min, output voltage accuracy of ±0.15V (2.5V gear), suitable for fine work in narrow spaces.

Alarm function walking foot valve: supports 6.5-36VDC wide voltage input, made of aluminum alloy, light weight and corrosion resistance, suitable for complex environments such as wetlands and muddy roads.

Heavy-duty models for medium and large excavators

Electric proportional output pilot handle: 50 bar high-pressure design, push button switch rated at 2A/36VDC, oil port sealed with G1/4EO, suitable for heavy-duty scenarios such as mining excavation and large earthwork projects.

Customized models for loaders

Handle series: DC24V solenoid drive, rated suction force 320±20N, control pressure range 4-19 bar, support independent operation of bucket and boom dual circuits, and improve loading efficiency by 15%.

International brand adaptation models

Special handles for Carter, Kobelco, Komatsu, and Hitachi: Maximum pressure covers 50-100 bar, oil port size and electrical parameters are 100% compatible with the original factory, cost is 40% lower than imported parts, and has been applied in batches to foreign brand equipment transformation projects.

2. Three core technical advantages to ensure operational efficiency

High-precision control, sensitive response

Integrated Hall element and proportional control technology, output voltage linear error <±0.2V, mechanical median deviation within ±2°, fine movements (such as breaker hammer inching, aerial work vehicle fine-tuning) are precisely controllable.

Full process quality control, leading reliability

Imported processing equipment is used to ensure part accuracy (±0.005mm), 100% pass factory test after assembly, data storage is traceable on the server, cleanliness reaches NAS level 8 standard, and after-sales failure rate is less than 1%.

Wide range of environmental adaptability, strong durability

Working temperature range – 20℃~90℃, compatible with 10-380mm²/s viscosity mineral oil, stable operation under extreme conditions such as plateau, severe cold, high temperature, etc., without frequent maintenance.

3.Wide application

Currently, Flag-up pilot control valves have been used by more than 30 leading enterprises such as XCMG, Sany, Zoomlion, and Sunward, covering municipal engineering, mining, port logistics and other fields.

Contact information

email: [email protected]

tel: +86 18969419261

+86 18957499052

Address: No. 255, Fengcheng Road, Wangchun Industrial Park, Ningbo

Media Contact
Company Name: Ningbo Flag-up Hydraulic Co., Ltd.
Email: Send Email
Phone: 86-574-88275662
Address:255 Fengcheng Road, Haishu District
City: Ningbo City
State: Zhejiang Province
Country: China
Website: https://www.flagup-hydraulic.com/