Haver and Boecker Niagara showcased new Aggregate Products at AGG1 2022
Haver & Boecker Niagara showcased new aggregate and quarry equipment at the AGG1 Academy & Expo 2020 in March.
Niagara F-Class Vibrating Screen
Haver & Boecker Niagara has revolutionized its signature Niagara F-Class vibrating screen with new technology for simplified maintenance combined with maximum performance and longevity. The new design retains the technical benefits the original F-Class is known for, such as improving performance in material stratification and reducing blinding and pegging.
“Our new design results in a more durable and easy-to-maintain vibrating screen with the same industry-leading performance customers expect from the F-Class,” said Duncan High, the product manager behind Haver & Boecker Niagara’s new F-Class design.
The vibrating screen is now primarily manufactured with vibration-resistant lockbolts instead of the traditional welding used in previous designs. Lockbolts are more effective at maintaining structural integrity during the demanding load-bearing, high-vibration operation of a vibrating screen, while making maintenance more convenient, safer and cost-effective. Bar rails are now fastened to the cross beams with lockbolts, making them easy to exchange if they become worn. The robustness of the machine also permits cross beams to be positioned and lock-bolted every four-feet instead of every two-feet, allowing for better clearance and easier maintenance.
The new F-Class design provides the option to upgrade the machine with Haver & Boecker Niagara’s new Drop Guard system. The liners provide protection for the machine’s cross beams, both reducing wear and extending vibrating screen life. The blue liner simply drops over the cross beam with no adhesive or tools required, making installation quick and easy.
Additionally, Haver & Boecker Niagara redesigned the flat deck models of the new F-Class to create the largest amount of open area possible for modular screen media. Featuring replaceable polyurethane anchors, the new high open area modular deck is suitable for virtually any pin and sleeve modular screen media. The polyurethane anchors are easy to replace and prevent premature wear on the deck frame. Additionally, the open design of the modular deck prevents material build-up on the bar rails.
The F-Class can also be manufactured for side-tensioned or bottom deck end-tensioned screen media. Each new side-tensioned machine comes with Haver & Boecker Niagara’s signature Ty-Rail™ quick-tensioning system with the ability to cut screen change-out times in half.
The new F-Class continues to feature the hallmark performance the machine is known for in tough applications, such as scalping, wet and dry screening, dedusting and more. Supported by high-performance, double-spherical roller bearings, the machine’s double eccentric shaft assembly creates a constant stroke to maintain g-force during material surging, providing constant material stratification to ensure product specification. It also creates a dynamically balanced system that transmits virtually no vibration into the structure — or chassis — preserving the integrity of the structure while also allowing for multiple machine installations. Additionally, the double eccentric shaft assembly reduces blinding and pegging while improving overall screening efficiency.
The vibrating screen continues to be equipped with shear rubber mounts rather than springs. Shear rubber mounts minimize the lateral movement caused by traditional springs. This reduces noise, maintains smoother operation and extends the life of a vibrating screen.
The F-Class is available with a variety of configurations and upgrades, and can be used in both stationary and portable applications.
All Haver & Boecker Niagara vibrating screens undergo extensive testing, inspection and the industry-leading Pulse Vibration Analysis prior to shipping to ensure correct balance and smooth operation.
Haver & Boecker Niagara Pulse Impact Test
Haver & Boecker Niagara’s new Impact Testing to its Pulse portfolio with experimental modal analysis. The impact test — also known as the hammer test or bump test — is now part of the company’s quality assurance program during factory testing as well as on-site.
This ensures each machine is properly tuned to avoid operating in resonance, ensuring efficient operation. With the opportunity to integrate impact testing data with other Pulse portfolio reporting and historical tracking, including Pulse Vibration Analysis and Pulse Condition Monitoring, Haver & Boecker Niagara can provide a more holistic view of the individual machine that helps customers maximize uptime through historical tracking.
Haver & Boecker Niagara’s suite of Pulse diagnostic tools help operations to monitor the health of vibrating screens for optimum screening performance and equipment durability.
“Increasing customer productivity and profits are at the heart of every Haver & Boecker Niagara innovation,” said Wilm Schulz, Haver & Boecker Niagara’s parts and service manager. “With advances in technology, we’re able to provide real-time information that helps customers make well-informed decisions about their machine. Including impact testing gives us one more data point to extend the life and maintain the health of a vibrating screen.”
Operating in resonance can diminish productivity, incur damage to vibrating screens and pose safety risks. Impact testing involves striking the machine at key points with a dead blow hammer while the machine is off. It typically includes the four corners but can be expanded to additional areas. Collected data is analyzed to identify the machine’s individual natural frequencies. Based on results, engineers can adjust machine parameters to avoid these frequencies during operation.
Integration into the Pulse software opens up opportunities for easier on-site impact testing. Natural frequency can shift over time as components are repaired or replaced, resulting in irregularities that could translate into diminished performance, decreased efficiency, increased operating costs and imminent breakdown. By incorporating impact testing into Haver & Boecker Niagara’s signature Pulse diagnostics tools, producers can ensure optimum screening performance and equipment reliability.
The service program includes a complete vibrating screen inspection by a Haver & Boecker Niagara certified service technician. Following the inspection, customers receive a Pulse Diagnostic Report, which provides an analysis of their vibrating screen and detailed recommendations to extend the lifespan of the machine and ensure its health. All Pulse Diagnostic Reports are stored in an online data management system, giving customers access to a complete record of their vibrating screen’s service and performance histories. This information allows customers to track changes in vibrating behaviour and predict future performance so that they may shift from reactive to predictive maintenance.
Impact testing, along with the other suite of Pulse services, is a critical part of PROcheck, Haver & Boecker Niagara’s comprehensive service process dedicated to keeping customers’ operations running at peak performance. PROcheck applies Haver & Boecker Niagara’s expertise during inspection of customers’ screening processes in order to recommend best practices for proficiency. It includes diagnostics, processing equipment, engineered screen media, original parts, rebuilds and upgrades, services, plants and process engineering.
Haver & Boecker Niagara Exciters
Haver & Boecker Niagara introduces its signature brand of vibrating screen exciters, Niagara Exciters. The technology provides customers increased service life and less maintenance, and is fully supported by Haver & Boecker Niagara’s service and refurbishment programs, which provide an added level of reliability.
The exciters are offered in four models, each of which is adjustable to provide eight weight configurations, offering the largest static moment range on the market. Niagara Exciters come standard on all Haver & Boecker Niagara exciter-driven XL-Class and L-Class vibrating screens, and are also available as aftermarket parts for any brand of exciter-driven machine. Exciter-driven vibrating screens are ideal for high-tonnage applications and heavy-duty environments, such as dewatering or SAG mill screening, due to the equipment’s strength and advanced sealing system.
“We understand that many of our customers are operating under high production demands, so offering efficient equipment to support those requirements, coupled with unrivaled service, is a priority for us,” said Jorge Elorza, Haver & Boecker Niagara sales engineer. “By manufacturing and refurbishing our own exciters, we are able to control every aspect and guarantee only the highest-quality product, ensuring maximum efficiency for the producer.”
Niagara Exciters are engineered by Haver & Boecker Niagara to set the required stroke, frequency and exact static moment for each application, resulting in improved screening performance. The innovative design of the exciters and large number of weight configurations contribute to improved screening performance, including the largest number of static moment options on the market to handle high-capacities, minimal maintenance and long service life.
Niagara Exciters provide producers with reliable, consistent performance and require less downtime, resulting in more productivity and profits. The average lifespan of a Niagara Exciter is 15,000 hours, with some XL-Class exciter-driven vibrating screen currently operating at more than 40,000 hours. The exciters are fully supported by Haver & Boecker Niagara’s service and refurbishment programs.
For guaranteed inventory, Niagara Exciters are available through Haver & Boecker Niagara’s stocking programs — Make & Hold and Stocking Agreements — which provide participating customers options for short lead times, pricing stability and simplified inventory management.
Haver & Boecker Niagara Scarabaeus Pelletizing Disc
Haver & Boecker Niagara’s new Scarabaeus pelletizing disc enhances the productivity and profits of mining operations. The cutting-edge processing technology allows operations to sustainably produce iron ore pellets by reducing CO2 emissions while providing heightened efficiency with a 97% production rate of pure iron.
The Scarabaeus technology effortlessly pelletizes fine materials to improve their storage and transportation properties, while increasing their market value. The machine seamlessly fits into an operation by offering adjustable inclination, speed and side wall height to best fit applicational requirements.
“We strive to innovatively find and meet the needs of our customers by offering a full-service of customizable mineral processing solutions,” said Jan Lampke, Haver & Boecker Niagara head of sales and projects. “The Scarabaeus pelletizing disc is exactly that. The mining industry is up against several challenges, especially in terms of sustainability, which is why our engineers strategically designed the technology to improve and address these issues while minimizing the environmental impact.”
The Scarabaeus pelletizing disc is available in a variety of sizes ranging from 3.2 feet to 24.6 feet (1,000 mm to 7,500 mm). It features a unique design that optimizes speed and movement to produce high-quality pellet materials. The machine applies a rotating movement combined with water as a liquid-binding agent on the surface of the disc. The selected material enters the surface of the disc and is pulled along the uppermost side to eventually collect in pellet form in a material bed.
The Scarabaeus 7500 generates a particle distribution of 10-14 mm, at up to 150 tph. The compact pellet size aids in the direct reduction process which helps to improve sustainability by reducing CO2 emissions. To ensure an optimum operating system, the parameters of the disc can be automatically adjusted during operation by changing the speed, inclination, mass flow rate and rim height. This feature also helps to minimize recirculation of over- or undersized pellets.
The processing technology is ideal for a variety of applications, from processing different types of ore and fertilizer to salt and fines.
“We saw a need for a more energy-efficient technology and the rising concern of high-operational costs, so we engineered a solution,” Lampke said.
The Scarabaeus 7500 pelletizing disc serves as a critical part of PROcheck, Haver & Boecker Niagara’s comprehensive service process is dedicated to keeping customers’ operations running to the best of their ability. PROcheck applies Haver & Boecker Niagara’s extensive knowledge in diagnostics, processing equipment, engineered screen media, original parts, rebuilds and upgrades, services, plants and process engineering to inspect customers’ screening processes in order to recommend best practices for processing proficiency. An evaluation can be completed quickly, and, if necessary, even while equipment is operating.
