Pärhä Oy, located in Orimattila, Finland, is famous for high-quality concrete gravel, delivered directly to production facilities. Metso’s diesel-powered/electrical Lokotrack double-stage plant ensures that different types of crushed rock are produced effectively and economically. As a bonus, the new Lokotrack ST4.10 screen operates carbon neutrally, using electricity generated by the tertiary crusher.
“Last year, we crushed more than 600,000 tonnes, of which some 250,000 tonnes were processed into different types of concrete gravel. The majority of the concrete gravel is delivered to five companies operating in the concrete industry in the Päijät-Häme region,” says Jari Pärhä, who is in charge of the crushing operations and production at Pärhä Oy.
“When such volumes are being produced by a single crushing plant, the machinery needs to be reliable. Metso is known as a dependable Finnish company that also provides well-functioning maintenance services.”
The family-owned company, established by Tuomo Pärhä in 1980, shifted from forestry to the gravel business at the beginning of the 2000s. Currently, the company specialises in crushing and transport services. Since the beginning of this year, the company has three partners: Petri Pärhä is managing director, Jari is in charge of the crushing operations, and Tommi Pärhä is taking care of the transport arrangements.
The company acquired its first Lokotrack LT106 jaw crusher in 2013, followed by a Lokotrack ST2.8 mobile screen. When the company decided to focus more on crushing operations, Pärhä Oy asked Metso for a new tertiary crushing plant. It turned out that the existing Lokotrack range did not have the right solution for the company.
“A few weeks later, Mikko Takaniemi from Metso came to demonstrate a raw version of the plant we were looking for. The cone crusher and screen plant included the pre-screen we had requested,” Jari says.
In 2017, a unique diesel-powered/electrical plant, called Lokotrack LT330GPSE, started operating at Pärhä’s quarry in Nastola. The LT120E jaw crusher replaced the primary crusher, and last autumn, the screen was replaced by ST4.10, a new Metso model, equipped with a 1.5m × 6m three-deck screen.
When different types of gravel for concrete and gritting are being produced, primary crusher feed enters first the LT330GPSE pre-screen, which removes the fine materials before going to the cone crusher.
“The pre-screen helps us to only feed pure rock material into the crusher, especially in wet conditions. This makes the production more effective and improves the quality of end products. Metso’s pre-screen works just as we planned,” Jari notes.
The double-stage plant and mobile screen produce gravel of 6–12 mm and 12–16 mm at an hourly rate of roughly 200 tonnes. At the same time, the process produces gritting gravel of 3–6 mm and fine rock dust of 0–3 mm. When coarser material is being produced, the capacity increases to 350–400 tonnes.
Pärhä Oy’s vehicles are used to deliver different types of gravel to companies operating in the concrete industry, for infrastructure construction and to private customers.
“Quality and documentation are important to us. For example, we check the quality of concrete gravel after every 500 tonnes,” Petri says.
This year, Pärhä will expand its production to asphalt and railway ballast. The company has, therefore, acquired a quarry from Mäntsälä to produce high-quality aggregates.
Sandvik is introducing Peak Screening – said by the Swedish quarrying equipment giant to be an innovative screening solution that helps customers reach their full productivity potential.
A company spokesperson says: “Peak Screening is a complete package offer and performance concept designed to ensure every square metre of a customer’s screening is as productive as it can be for their unique operation.
“Most screening operations, even when they look fine, are capable of more. Often much more. Peak Screening is our term for a complete screening solution, including the right screen, screening media and warranty/service program for any customer budget or need, all working together towards one goal – maximising the full potential of the customer’s screening operation.”
Sandvik says its screening equipment, screening media and services are designed to work optimally with each other and ensure the screening operation is as productive as it can possibly be. The company says that its customers will also benefit from having ongoing access to experienced Sandvik specialists who can help with the right configuration, optimisation, troubleshooting, and much more.
Sandvik now has three new ranges of maintenance-friendly, high-performing modular screens that are said to be more versatile, more reliable, faster to get on-site and safer to operate.
All Sandvik screens come with high-quality Sandvik screening media as standard, unless otherwise specified. Sandvik says it works closely with customers to determine the right solution for their applications. This includes offering exclusive options such as Sandvik’s WX6500 tensioned rubber screening media with up to a claimed 15x longer wear life than standard wire mesh, but with the same screening accuracy for better productivity and uptime.
Sandvik’s novel Reliability & Performance (R&P) package is said to protect customer investment. R&P includes two years extended equipment warranty, regular inspections, maintenance recommendations, troubleshooting and performance analyses that can help optimise service intervals and avoid costly breakdowns.
Screening solutions from Sandvik also come with a performance guarantee where Sandvik guarantees that the solution achieves the performance that has been agreed on together with the customer — or Sandvik will work with the solution until it does.
“Peak Screening shows our understanding of customers’ productivity needs, and commitment to solving their challenges in unconventional, industry-first ways. We want to help customers benefit from the competitive advantage Peak Screening can provide, while establishing it as the defining screening performance standard of our industry,” says Mats Dahlberg, vice president Lifecycle Service Stationary Crushing & Screening.
Terex Finlay is expanding its mobile crusher line with the introduction of its IC-Range of compact impactors. The IC-Range of small impact crushers has been designed explicitly for quarrying, construction and demolition debris, reinforced concrete and asphalt recycling applications.
The new IC-range comprises four models: IC-100, IC-100RS, IC-110 and IC-110RS.
“The addition of these four new models complements our existing range of mobile impact crushers and opens up new opportunities at the smaller machine sector of the market. Each of these models has been rigorously tested and proven in a diverse range of applications. The compact size, ease of transport, quick set-up times and intuitive operation make each of these machines ideal for contract crushers, independent rental houses and small-scale operators,” says Alan Witherow, Terex Finlay lead technical support and product manager.
The IC-100 features an 860mm x 860mm direct-drive horizontal impact chamber with variable rotor speed. The advanced electronic control system monitors, controls and regulates the speed of the VGF (vibrating grizzly feeder) to maintain a consistent feed of material into the impact chamber to maintain optimal crushing capacity. The IC-100 provides operators with a compact and versatile machine that gives high material reduction ratios and produces a consistent product grading.
Based upon the IC-100, the IC-100RS features an onboard recirculating system and detachable sizing screen to provide the versatility of a compact crushing and screening plant on one mobile. If recirculating and sizing materials is not required, the sizing screen can be removed quickly from the machine without the need for secondary lifting equipment. The recirculating conveyor can also be utilised for stockpiling an oversize product.
The IC-110 features a 1034 x 1000mm direct-drive impact chamber with variable rotor speed and hydraulic apron-setting assist in providing convenient and efficient adjustment of the chamber aprons. The chamber is also fitted with a hydraulic overload protection system as standard. For operators in recycling and demolition applications, an underpan feeder is also available as an option.
The IC-110RS impact crusher provides the versatility of a compact crushing and screening plant on one mobile platform for quarrying, construction and demolition debris, reinforced concrete and asphalt recycling applications. The machine features a direct-drive 1034mm x 1000mm horizontal impact crusher with variable speed control to give operators unprecedented levels of fuel efficiency and productivity. A vital feature of the machine is the onboard 2.74m x 1.5m single-deck screen. For applications not requiring recirculation of oversize material back to the crushing chamber or the stockpiling of an oversize product, the complete screening and recirculating system can be quickly detached from the machine.
In other Terex Finlay news, the company’s standard subscription for its T-Link plant monitoring and performance optimisation system is now available for seven years.
Introduced in January 2016 the T-Link hardware and software can be used on any Terex Finlay crusher or screener with an electric engine.
It allows operators at any given time to see the exact location and status of their Terex Finlay plant fleet.
Furthermore, T-Link shows what areas to improve upon to optimise profitability.
Now, all Terex Finlay machines that are already in the field and fitted with T-Link hardware and software will automatically roll over to the extended seven-year data subscription.
Alan Witherow says: “T-Link takes the guesswork out of machine monitoring and performance optimisation. Our seven-year standard data subscription places us at the technological forefront of our industry.”
The Terex Finlay T-Link package provides operators with a user-friendly, unlimited portal to access all the firm’s machines in one place at one time. It also gives them key figures and performance metrics of their connected assets in the form of ‘Actionable Reports’ that they receive automatically weekly.
Superior Industries, a US-based manufacturer and global supplier of bulk material processing and handling systems, has unveiled a new series of modular plant for aggregates crushing, sorting, sizing and washing applications. Known as Fusion Modular Platforms, these pre-engineered, ready-to-build systems still allow customisation to achieve the best performance at each job site.
“Our plant designs are scalable and easily expand with a developing customer site,” says Mark Crooks, product manager at Superior Industries. “Producers can quickly expand capabilities as finances allow, the application needs change and as their market develops.”
Today, Superior has pre-engineered a series of plant packages and is working on designing more for its catalogue. Some examples include jaw, cone and impact crushing platforms, horizontal screening platforms with two-, three- and four-deck models, plus a group of traditional washing and modern low-water washing platforms.
“Overwhelmingly, our customers said they want scalability and flexibility in these modular offerings,” says Crooks. “Therefore, as we developed our strategy, we ensured flexibility from top to bottom, convenient installation or dismantling and seamless integration with Superior crushing, screening, washing and conveying machinery.”
Fusion Modular Platform systems are pre-engineered for earlier commissioning, are more cost-effective than a design-build plant, incorporate well into existing plants and utilise creative packaging to limit the number of flatbeds or shipping containers needed for transportation
