When severe winter cold grips a city, the impact goes far beyond slippery roads and travel disruptions. Sub-zero temperatures place enormous stress on the city’s underground lifelines—water supply networks that sustain daily life and urban operations.
Industry data shows that nearly 42% of annual urban water pipeline failures occur during winter, with incident rates more than three times higher when temperatures fall below –5°C. Aging cast iron pipes, exposed pipelines, and older municipal networks are especially vulnerable to freezing, expansion, and rupture. The consequences—water outages, frozen road surfaces, water loss, and public safety risks—demand rapid, precise, and safe emergency repair.
In this race against time and temperature, ZONDAR intelligent hydraulic tools have become a trusted solution for municipal maintenance teams, delivering safe, efficient, and adaptable performance in extreme winter conditions.
Winter Repair Challenges: Why Traditional Tools Fall Short
Repairing frozen water pipelines in winter presents multiple technical and safety challenges that traditional tools struggle to address:
- Increased material brittleness: Low temperatures make pipes more fragile, increasing the risk of secondary damage during excavation and demolition.
- Hazardous working conditions: Ice, water, and confined spaces create serious safety risks—especially for electrically powered tools.
- Live-water operations: Many leaks must be repaired under flowing or submerged conditions, further complicating repairs.
- Urgent restoration requirements: In dense urban areas, prolonged water shutdowns are unacceptable, placing extreme pressure on repair efficiency.
Traditional electric or mechanical tools are often slow, unsafe in wet environments, and poorly suited for low-temperature operation. Municipal repair teams increasingly require professional-grade equipment that combines safety, speed, and adaptability.

ZONDAR Hydraulic Tools: Engineered for Winter Emergency Repairs
With years of expertise in hydraulic technology and emergency response equipment, ZONDAR has developed a comprehensive range of intelligent hydraulic tools specifically suited to harsh municipal repair environments. These solutions address winter pipeline repair challenges through three core advantages.
1. Safe, Non-Electric Operation in Extreme Cold
ZONDAR hydraulic tools operate on pure hydraulic drive, eliminating electrical components at the working end. This fundamentally reduces the risk of electric shock in wet, icy, or flooded conditions—making them ideal for winter pipeline repairs.
Key benefits include:
Safe operation in standing water and frozen environments
- Reliable cold starts down to –30°C
- High-strength aluminum alloy housings and low-temperature-resistant hydraulic components
- Even under extreme cold, ZONDAR equipment maintains stable performance where conventional tools fail.
2. Integrated High-Efficiency Workflow to Minimize Downtime
Time is critical during winter water outages. ZONDAR hydraulic power units are designed as multi-tool platforms, capable of driving multiple tools from a single power source, including:
- Hydraulic breakers for frozen pavement demolition
- Hydraulic saws for cutting
- High-capacity hydraulic submersible pumps for rapid drainage
This integrated approach enables:
- Up to 3× faster excavation on frozen ground
- Rapid removal of water and ice from repair zones
- Significant reduction in manual labor intensity
In many cases, critical repair stages that traditionally took several hours can be completed within 30 minutes, dramatically reducing service interruption.
3. Precise Adaptation to Diverse Pipeline Conditions
Urban water networks vary widely in pipe diameter, material, and installation environment. ZONDAR hydraulic solutions are designed to adapt across these variables. Effective in underground, elevated, and bridge-mounted installations
Field-Proven Performance: Real Winter Repair Success
In northern China, a municipal repair team faced an emergency when a DN400 cast iron main ruptured during –25°C conditions, cutting water supply to three residential districts. Heavy icing and flooding made the site extremely hazardous.
Using a ZONDAR hydraulic power unit paired with breakers and submersible pumps:
Frozen pavement was removed and water drained in just 20 minutes
Full water service was restored in 1.5 hours, cutting repair time by over 60%
Similar success stories have been repeated across multiple cities, reinforcing ZONDAR’s reputation as a reliable partner in winter emergency response.
Technology-Driven Protection for Urban Infrastructure
Urban water pipelines are critical public assets—and winter protection is a matter of public safety. ZONDAR remains committed to technology-driven innovation, holding more than 30 technical patents and continuously refining hydraulic solutions for emergency and municipal applications.
By offering customized system configurations, ZONDAR helps cities match the right tools to their specific network conditions, ensuring faster response, safer operation, and long-term reliability.
Standing Guard Through the Coldest Winters
Winter may be unforgiving, but urban lifelines must never fail. With safe, efficient, and intelligent hydraulic solutions, ZONDAR stands alongside municipal teams, safeguarding water supply networks and minimizing disruption when cities need reliability the most.
ZONDAR Hydraulic Tools —Keeping Urban Lifelines Flowing, Even in the Coldest Conditions.




