Heavy-Duty Mining Bolt Impact Breaker

MC3-250C Hydraulic Bolt Punch

With the vigorous development of the global mining industry, mining equipment continues to iterate and upgrade, and the trend toward large-scale, high-capacity milling equipment has become increasingly prominent. This evolution has driven the maintenance procedures for large ball mills and SAG mills to move toward higher efficiency and automation. However, most mining enterprises still rely on traditional manual methods for liner bolt removal during mill maintenance.

Workers are required to operate heavy tools and repeatedly strike seized and corroded liner bolts manually. This method delivers extremely low working efficiency and imposes extreme physical fatigue and high labor intensity on on-site operators. The conventional demolition process also brings severe potential safety hazards. Slight operational errors may easily cause on-site accidents and equipment damage. In addition, the backward manual bolt removal technique leads to extremely long maintenance cycles. For a medium-sized ball mill, complete bolt removal traditionally takes 15 to 20 days. Such inefficient and time-consuming maintenance methods have long restricted the production capacity and equipment utilization rate of mining plants, forming a stubborn industry bottleneck that urgently needs to be solved.

To break through this long-standing industry dilemma and completely upgrade traditional mill maintenance workflows, our company has independently developed the MC3-250C Hydraulic Bolt Punch. This high-efficiency hydraulic tool is specially designed to replace outdated manual striking methods and greatly shorten the liner replacement cycle. In actual mining site applications, the MC3-250C only requires 5 days or less to finish all bolt removal work for a medium-sized ball mill. Compared with traditional manual operations, it drastically improves maintenance efficiency, maximizes mill equipment availability, and creates substantial economic benefits for mining enterprises by reducing costly downtime and labor expenses.Key Advantages

Key Advantages

• 1. Exquisite Craftsmanship, Corrosion Resistance and Fade-Free Performance

  All structural components are processed by laser cutting, automatic welding, shot blasting derusting and assembly-line plastic spraying. Featuring strong paint adhesion, smooth and glossy surface, excellent wear and weather resistance, the equipment maintains a stable structure and perfect appearance for long-term outdoor mining operation without fading or peeling.

• 2. Imported Core Hydraulic Parts, Powerful Impact and Stable Performance

  The cylinder valve core and full set of sealing parts adopt South Korean imported accessories and advanced hydraulic technology, with outstanding pressure resistance, wear resistance and high temperature resistance. The equipment delivers stable hydraulic output, providing 3600J vertical impact force and 1500J horizontal impact force. It supports both inching impact and continuous impact modes, greatly improving bolt removal efficiency.

• 3. Nitrogen Shock Absorption & Recoil-Free, Safe and Labor-Saving Operation

  Equipped with a rear air buffer spring and nitrogen charging device, the machine effectively buffers and eliminates recoil force during operation. No obvious vibration or rebound occurs during work, which reduces labor intensity, avoids collision risks fundamentally and ensures high operational safety for workers.

• 4. Complete Electric Control Protection System, Anti-Misoperation and High Stability
  Adopting integrated main start-stop control and equipped with a phase sequence protector, the equipment effectively prevents oil pump damage caused by incorrect wiring and motor reverse rotation. Integrated with high-pressure alarm, operation indicator, oil return indicator and emergency stop switch, it provides full-process multi-safety protection, ensuring stable operation and low failure rate.

Technical Specifications
Built for Heavy-Duty Mill Maintenance

The MC3-250C combines robust hydraulic engineering with precision machining to deliver reliable performance in the most demanding mining maintenance applications.

MC3-250C vs. Traditional Methods

See how the hydraulic bolt punch outperforms conventional liner bolt removal techniques across every critical metric.

Application Scenarios

Widely used in copper, iron, gold mines in South America (Chile, Peru). Ideal for periodic mill liner overhaul and emergency stuck bolt removal. Mining concentrators often face unexpected shutdowns when liner bolts seize. MC3-250C serves as essential maintenance equipment for scheduled liner change-out and emergency breakdown repairs.

Package & Shipment

Main machine packed with plywood pallet, suitable for bulk vessel shipment as bottom stow cargo. Compact structure for port loading and site transportation.

CTA Section

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Contact us now. We supply full set including bolt punch and matching hydraulic power pack for your ball mill maintenance project.