Bolt punching

Technical Configuration

The MC2-150 is a fully customizable system designed to match project-specific requirements for capacity, span, and lifting height, with standard configurations engineered to handle the most demanding mill relining environments. The power system is driven by an electric motor with a hydraulic variable displacement pump, ensuring low noise, minimal heat generation, and energy-efficient operation with no harmful exhaust emissions, making it suitable for enclosed mill spaces. The structural design follows GB/T crane standards and can be configured as a single-girder or double-girder manipulator depending on span and load requirements, with all weldments stress-relieved and shot-blasted for durability. Electrical components are sourced from Schneider Electric as standard, with Siemens as an optional upgrade, and all control panels are IP54 rated. Operators can choose from three control modes: a fully enclosed cabin with HVAC and ergonomic seating for continuous operation, a radio remote control for flexible floor-level maneuvering, or a pendant station for direct line-of-sight control. Safety devices include overload limiters, emergency stop circuits, travel limit switches, and anti-collision buffers. Optional features include custom gripping attachments for non-standard bolt heads, integrated dust suppression systems, and remote diagnostic telemetry for predictive maintenance.

This manipulator is deployed across a range of heavy industrial applications where mill relining efficiency directly impacts production throughput. Primary use cases include ball mill and SAG mill relining in copper, gold, iron ore, and lithium mining operations; autogenous mill maintenance in cement and aggregate plants; bolt removal in large-diameter rotary kilns and dryers; and heavy machinery repair in port bulk handling facilities. The system is equally effective in steel mill ladle relining and slag pot maintenance, where access constraints and high bolt torque demand specialized equipment. In each scenario, the MC2-150 eliminates the need for manual sledgehammer work, reducing physical strain on workers and accelerating the relining cycle by up to 70%.

Chunhua Crane, founded in 2003, manufactures this manipulator at its ISO 9001-certified facility in Hefei, China, offering direct factory pricing that is typically 30-50% below equivalent European-branded systems while maintaining comparable quality standards. All equipment can be supplied with CE certification for European markets or CCC certification for domestic Chinese projects, and is designed to comply with FEM, DIN, or CMAA standards upon request. Our engineering team provides custom structural and hydraulic design modifications at no additional cost for standard customization, and we commit to a 4-hour initial quotation response time for all technical inquiries. With sea freight capabilities to over 60 countries and a network of regional service partners, Chunhua ensures that international buyers receive full technical support, spare parts availability, and optional on-site commissioning assistance.

To initiate a project, contact our export sales team via WhatsApp or email with your mill specifications and bolt removal requirements. Within four hours, you will receive a detailed quotation with a CAD layout drawing and technical proposal. Upon acceptance, a 30% T/T deposit secures your production slot, with the balance due before shipment. Standard manufacturing lead time is 30-45 days, depending on customization complexity. We arrange sea freight to your nearest port with full container loading and cargo insurance. Optional installation and operator training can be provided by our field service engineers at an additional cost, ensuring your team is fully proficient from day one.