Answer from Ningbo Changshi: A modern underground cable pulling machine, a core component of our product line, is designed for both power and efficiency. Beyond simply providing a pulling force, a professional machine includes several key features that ensure safety and precision:

• Bullwheel Design: Our machines feature a hydraulic bullwheel which provides a constant pulling force and speed. Unlike drum winches where tension varies as the rope layers build, a bullwheel ensures smooth and consistent tension, protecting the cable from stress.

• Integrated Tension Meter: A digital or analog dynamometer is crucial. It provides real-time feedback on the pulling tension, allowing the operator to stay within the cable manufacturer's specified limits. Many of our models include a data logger to record this information for quality assurance and project documentation.

• Automatic Overload Protection: This is a vital safety feature. The machine automatically shuts down if the pulling tension exceeds a pre-set limit, preventing over-tensioning that can damage the cable.

• Trailer-Mounted Portability: Most of our machines are mounted on a heavy-duty trailer. This design allows for easy transport between job sites and provides a stable platform for safe operation, eliminating the need for complex rigging or anchoring.

• Controlled Payout and Remote Operation: Modern machines offer controlled payout to prevent the cable from back-spinning or snagging. They often include wired or wireless remote controls, allowing the operator to stand in a safe, visible location away from the pulling line.

These features make our machines a complete, professional solution for any underground project.