From November 10 to 29, 2025, a delegation from Wanfeng Mining Machinery comprising Chairman Mr. Zhu Zhen, Engineer and Sales General Manager Mr. Shi Zhichao, and Engineer Mr. Li Ruiqi traveled to Zimbabwe in Africa. They carried out nearly twenty days of annual equipment maintenance and technical exchanges with local mining customers using Wanfeng hoists and winches.
The visit covered all mining customers across Zimbabwe that use Wanfeng equipment. Focusing on the various shaft mining methods employed by customers, particularly critical processes such as shaft sinking in mining, the team performed systematic maintenance and inspections of operational equipment. At shaft sinking projects sites, they not only ensured the stable operation of heavy equipment mining machinery but also conducted on-site training for equipment operators, introducing the latest technical optimizations and usage standards. Additionally, the team gathered in-depth feedback from customers on practical applications, providing valuable insights for future functional adjustments and operational experience improvements in export models.
The visit achieved significant results, further strengthening the trust and collaborative relationship between Wanfeng and its mining customers in Zimbabwe. This trust is built on Wanfeng's proven track record of meeting targets and delivering results in multiple mining projects utilizing different shaft mining methods, its extensive experience in maintaining the reliable operation of heavy equipment mining machinery under challenging conditions, and its comprehensive professional oversight from debugging and design to equipment installation and project operation.
Entrusted with confidence, committed to fulfillment. Wanfeng Mining Machinery will continue to dedicate all efforts to providing solid support for the smooth progress and sustainable development of mining projects in Zimbabwe, working hand in hand with customers to create mutual value.
Training Content: Usage and Maintenance of Double-Drum Mine Hoists
(Key Issues Requiring Attention During Operation and Maintenance)
1.During rope adjustment (e.g., changing hoisting levels or adjusting rope length), the container must be empty — no personnel or loads are permitted. |
| 2.In mines frequently performing continuous heavy-load lowering, electrically controlled dynamic braking is required. If dynamic braking is unavailable and braking with loaded descent is necessary, closely monitor brake liner temperature. Do not exceed 120°C to prevent reduced friction or liner burning, which affects braking torque. |
| 3.Regularly check brake liner wear. If wear reaches 2mm or disc springs fatigue beyond 1mm, adjust or inspect immediately to maintain braking torque. Also, verify the functionality of the wear and fatigue switches. |
| 4.When replacing liners, do not change all at once. Replace two liners on one brake first, allow them to bed in, then replace the other set. This ensures safety without disrupting operation. |
| 5.Periodically verify that all safety protection devices function reliably. |
| 6.Regularly check for oil on brake discs and liners. Clean immediately if found, as oil drastically reduces friction and may cause braking failure, leading to serious accidents. |
| 7.When maintaining brakes or the hydraulic station, cut power to the safety valve solenoid and securely lock the drum. |
| 8.Regularly check that the hydraulic station oil level is within the indicated range. Keep the oil clean, replacing it at least every six months. Replace immediately if foaming or sediment is observed. |
| 9.Check the reliability of the safety valve operation every shift. |
| 10.Ensure no air is trapped in oil lines or brake cylinders, as this delays brake release. To bleed air: fill cylinders slowly at ~0.5 MPa, loosen bleed screws until oil flows without air bubbles, then tighten. Repeat if release times increase. |
| 11.When restarting a fully stopped hydraulic station, start the oil pump motor before energizing the safety valve solenoid. |
| 12.Regularly inspect the gear reducer. Stop and inspect if unusual noise, vibration, temperature rise, or gear damage is noted. Keep detailed records for troubleshooting. |
| 13.Safety braking deceleration must not be excessive, to avoid system shock or rope breakage. Sudden deceleration during full-speed operation can loosen the rope; when the container reverses, it may snap the rope. |
| 14.For skip hoists, install slack rope protection. Skips occasionally jam in discharge guides; if descent continues, the resulting slack rope can snap. Other hoists should also have slack rope protection in case of obstructions or guide deformations. |
Wanfeng Hoists & Winches – Dual Assurance for Efficiency and Safety in Mining
We employ over a hundred professional engineers with expertise in designing and executing multinational projects, ensuring full compliance and cost-effective operations. Through precise equipment selection and customized solutions, we provide mining operations with energy-efficient, power-saving hoisting systems tailored to your production needs—effectively avoiding issues like excessive power consumption and delays caused by improper equipment selection.
We offer one-stop technical solutions for shaft sinking and hoisting equipment, along with intelligent mine planning—all available with complimentary preliminary design services!
Contact Information
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