Mining Hydraulic Bolt Punch Tool 1500J Impact For Ball Mill Liner Removal

Bolt Punch MC2-150B – Hydraulic Bolt Punch for Ball Mill Liner Removal

Product Description

The MC2‑150B Mining Hydraulic Bolt Punch is a specialized hydraulic tool designed for on-site maintenance operations in mining plants. It is engineered to solve a common industry challenge: seized, corroded, or stuck liner bolts on ball mills and semi-autogenous (SAG) mills. In actual mining operations, mill liners are constantly exposed to material impact and corrosion, which causes bolts to become jammed or rust-locked. Traditional manual striking methods are labor-intensive, inefficient, and carry significant safety risks.

Powered by hydraulics, this unit delivers stable and powerful impact energy. It offers two working modes — jog impact and continuous impact — enabling fast removal of even the most stubborn liner bolts. This significantly shortens mill downtime and reduces production losses caused by extended shutdowns. Operator safety is a key design priority: the rear end is equipped with air shock-absorbing buffer springs and a nitrogen buffer structure, which effectively reduces recoil and kickback during operation, lowering operator fatigue and improving on-site safety. The compact and well-organized structure allows for easy movement and transfer, making it suitable for various complex working conditions such as mining workshops and open-air maintenance sites. Customization services are available to match different on-site working conditions. Customers can share their site details during communication, and we will recommend a suitable equipment solution.

Main Technical Parameters

Product Features

1. Robust Structural Craftsmanship: Structural components are laser-cut, formed through semi-automatic and automatic welding processes, shot-blasted for rust removal, and then finished with an assembly-line powder coating. The coating offers high adhesion, a smooth surface, and long-term outdoor durability against fading and peeling — suitable for dusty and humid mining environments.

2. Powerful Impact Energy with Dual Modes: The equipment delivers ample impact energy, with vertical impact force up to 3600 J and horizontal impact force of 1500 J. The two impact modes can be switched freely, allowing efficient removal of severely corroded or seized bolts and improving maintenance efficiency in mining operations.

3. Dual Buffering Design for Operator Protection: The unique nitrogen plus air spring dual buffering design minimizes recoil during operation, reduces vibration and kickback, protects operators, and improves the on-site working experience.

4. Comprehensive Electrical Safety Protection: Equipped with a phase sequence protector — if the on-site power wiring is incorrect, the motor will not start, preventing oil pump reverse rotation and damage. It also integrates high-pressure alarm, running indicator, return oil indicator, and emergency stop switch, providing multiple layers of protection for stable equipment operation.

5. Imported Core Components for High Reliability: The core valve spool and sealing components of the punch body use imported parts, offering excellent pressure resistance, wear resistance, and high-temperature performance. Hydraulic output is stable, making the unit suitable for high-intensity continuous operations in mining. A full set of wear parts is available, and on-site replacement is simple and convenient.

Manufacturing Standards

The product is manufactured strictly in accordance with relevant domestic industry standards, covering multiple inspection requirements including steel material selection, welding processes, weld ultrasonic testing, coating performance, surface roughness, and geometric tolerances. Quality is controlled layer by layer from raw materials to finished products.

Delivery Documentation

A complete set of technical documents is provided with the equipment shipment: bolt punch general drawing, hydraulic station general drawing, hydraulic hanger general drawing, bolt punch operation and maintenance manual, product certificate, packing list, and shipping list.

Packaging and Shipping

The complete unit is packed in plywood sealed packaging with strong anti-collision protection. It is suitable for both domestic land transportation and ocean freight export, protecting against damage during long-distance transport and multiple loading/unloading operations.

Application Scenarios

Mainly used for maintenance of ball mill and SAG mill liners in various mineral processing plants, for quick removal of rust-locked or jammed liner bolts.