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Anyone who visited Bauma in April will have noticed that electric and hybrid equipment are hot topics at the show.
In general, in the field of access, especially lithium-ion batteries have also made significant progress. Although the disadvantages of lithium batteries are that they are still relatively expensive and there are problems with the recycling of used units, they have many advantages over lead-acid batteries in daily use. This includes the fact that they should last the life of the machine and require little maintenance, and include a good battery management system.
Of course, electricity is no stranger to accessing equipment. Flat shears and crawler platforms are two long-standing examples, both of which are using more lithium. The shift to electric and hybrid cross-country arms and scissors has piqued the interest of the modern access control industry.
However, this is not only related to lithium. Manitou launched its electric and hybrid series at Bauma. The Oxygen series includes a new aerial platform and two telescopic forklift models.
ATJ 200 e Oxygen is the group's first electric all-terrain aerial platform, powered by lead-acid batteries. The company said that the model has a working height of up to 20m and a maximum load capacity of 230kg, which can provide the same performance as the diesel-powered version.
Francois Desbriere, head of Manitou's aerial platform department, said that it took nearly two years to develop this new technology based on the company's existing products. ATJ 200 e uses the company's existing axles, and a new AC motor is installed in the chassis, which can power all wheels in constant four-wheel drive mode and two-wheel steering mode. This is in contrast to competing models that use electric motors on each axle.
There are two 24 volt battery packs, which means it will not exceed the 70 volt threshold, allowing technicians to work without special certification. Even in bad weather conditions, it can be fully charged for up to one working day. Manitou chose lead acid instead of lithium because the former is already very mature in the market. "There is no space issue with this option, the rental company knows and understands it, and it is cheaper than lithium-ion batteries. In addition, 95% of the batteries can be recycled," Desbriere said.
The all-electric machine will be available at the end of 2019, and the hybrid version will be put into production in 2020. The plan is to expand the cruising range. Desbriere said that this machine has attracted a lot of attention, especially from customers from Nordic countries such as Germany, Sweden and Norway. "I still believe that hybrid power is a short- and medium-term solution. However, in the end, construction sites will have the ability to change their methods and electricity will become more popular."
The company also launched the MRT 2550 h Oxygen Lab telescopic forklift; a hybrid prototype version of the diesel MRT 2550 model, capable of operating in 100% electric mode. Retaining the same characteristics as the diesel-powered version, it has a lifting height of 25 m and a lifting weight of 5 tons.
Another product launched by Manitou that is still in the concept stage is MT 625 e Oxygen. This is a light telescopic forklift, designed to be fully electric, this time using lithium batteries. Although the current concept car does have a small diesel engine to assist travel, it will be changed to a battery version in the future.
Last year, Haulotte made a promise on Intermat that all its new models of booms will be electrically driven. The new generation of Pulseo boom does provide an internal combustion engine that can charge the battery in the special case of exhaustion, but it is essentially designed for electric power. The manufacturer is seeking to expand its electrical products outside the core European markets, and opened new offices in Beijing and Guangzhou last year, and plans to open an office in Wuhan in 2019 to increase its existing Shanghai headquarters and Changzhou Manufacturing plant.
Harry Wang, general manager of Haulotte China, admitted that he was uncertain about the acceptance of the all-electric boom in China, but said that the recent press conference held in Guangzhou with 120 Chinese customers was a success. "After the launch, we received excellent feedback from the market. The Chinese want better air quality. Pulseo products meet the needs of the Chinese."
As previously announced in the March issue of AI, JLG has adopted a different strategy for its new all-electric AJ boom series, offering three models-340AJ, 450AJ and 520AJ-with working heights ranging from 12m to 18m.
This series comes standard with lithium batteries and two-wheel drive. Barrie Lindsay, Engineering Director, Leicester, UK, said: “As a manufacturer, we have improved access to alternative drive systems because the availability of electric drive technology has matured. At this point, we are ready to match the technology with the application.
"In addition, the development of batteries has been improving over the years, and faster and more suitable charging has become a reality. For JLG, uptime, duty cycle or terrain capabilities should not degrade performance." Check out the relevant information in the AI March issue More information on the range of functions of the articulated arm.
At Bauma, it was also announced that Dana and JLG had cooperated as part of JLG's electrification plan. Spicer Electrified e-Axle combines electrified drive components to reduce power loss by up to 20% compared with traditional diesel powertrains.
It includes a series of Dana brands, including Spicer axle components as well as drive and motion intelligence, SME motors and control technology, and gears that can be fine-tuned according to vehicle size and performance. Together, these components increase the efficiency of the drive system, allowing the use of miniaturized battery systems. The company said that noise and vibration have also been improved, and working hours and scope of work have also been improved.
The system also integrates Spicer Smart Suite Intelligent Load Monitoring System (ILMS) and intelligent steering. It also meets the telematics requirements of modern machinery and has a patented data collection system that can prevent tipping, provide calibration management, and estimate axis posture. The steering system continuously analyzes the operation of the vehicle to adjust the steering angle.
Snorkel also showed a preview of its first lithium-ion powered lift in Bauma in the form of a new zero-emission speed class. The company said that the SL26E is equipped with a 17kWh Hyperdrive lithium battery pack, with an integrated battery management system (BMS), and provides a longer work cycle for longer, continuous operation on the construction site. The manufacturer also introduced a new generation of electric flat scissor lifts. The first is the S3019E, with electric drive and electric steering, which means there is no hydraulic hose.
In fact, all manufacturers have seen the benefits of lithium, including Chinese manufacturers. For example, Sinoboom is also moving towards a larger range of electrical equipment. The company said it will offer lithium options in its entire line of flat scissors. The company said that the next step will be rugged terrain scissors, which can be powered by lithium batteries or lead-acid batteries.
There is no doubt that electric access equipment represents the future. However, while we are moving in this direction, and with the development of concept equipment, rental companies need rugged terrain booms that can now be used.
Genie's growing hybrid product line aims to do just that. Visitors to Bauma saw the second part of the FE series, represented by the articulated Z-45 FE hybrid vehicle with a working height of 15.92m.
The new Genie Z-45 FE adopts the same technical design as its larger sister Z-60 FE (previously known as Z-60/37 FE), with a maximum abduction distance of 6.94m, a maximum upwards and more than 7.5m and starting from 300kg Heavy capacity. The Z-45 FE boom lift is designed to combine the performance of a typical 4WD diesel engine with the advantages of a 100% electric device, and has an active swing shaft. In the all-electric mode, it provides the ability to complete the whole shift with one battery charge. In hybrid mode, one tank of diesel can provide more than one week of running time.
In hybrid mode, the Z-45 FE boom lift uses a generator driven by a Stage V/Tier 5 engine to maintain battery charge. It also uses braking energy to charge the battery.
Compared with a typical 36.5 kW (49 horsepower) diesel engine, it requires 30% less fuel. It also has the advantage of saving 25 Euros (28 U.S. dollars) per week in fuel, and it can run a full shift after charging overnight, says company.
Truck brackets are also increasingly entering the hybrid and pure electric fields. Ruthmann showed off the TB 270 Hybrid, the first hybrid car in its high-end brand Steiger series at Bauma.
Coupled with the company's first all-electric compact Steiger Ampero TBR 250 E, it says it is responding to the growing demand for alternative, emission-free drive type truck mounts. The working height of the TB 270 Hybrid 27m is almost silent and no carbon dioxide. It can work in the city center, pedestrian area or residential area outside the usual time limit, and work in the early morning or evening without disturbing passers-by and local residents.
The lithium battery is installed next to the internal combustion engine of the chassis. You can choose to switch automatically between the battery and the internal combustion engine without any performance or speed loss in battery mode. To compensate for the weight of the battery pack, the TB 270 Hybrid is mounted on a 3.5-ton Mercedes Sprinter chassis, which is equipped with a GRP-RA suspension (a leaf spring made of glass fiber reinforced plastic) and a 45-liter fuel tank. In addition, the passenger seat has been removed. If the customer needs a chassis or passenger seat with greater vehicle carrying capacity, the 5-ton Mercedes Sprinter chassis can be used.
The TB 270 Hybrid can also rival the performance level of the traditionally powered sister model TB 270, with an outreach of 16.4m and a basket capacity of 230kg. The new model now joins the Ecoline 160 and 180 Hybrid models in the manufacturer's low-cost range.
Last year, Palfinger demonstrated its first electric access control platform. The 37m working height P 370 KS E is driven by a standard truck, but it combines a diesel drive system and electric drive, which means it aims to provide the performance and service life of a diesel engine at a lower operating cost.
Compared with an all-diesel engine, it can save fuel, emit less than 62 decibels, and emit less carbon dioxide. Smart fast charging means that a 40 KVA wet battery can be fully charged in about 6 hours, which the company claims is 25% less than normal.
Depending on how the product is used, P 370 KS E can run for a full working day. The external power supply provides on-site charging during shutdowns and breaks. The intelligent charging system with integrated fast charging function means charging for one hour, which can provide up to one and a half hours of electric operation. The maximum cage load is 500kg, which can achieve a lateral extension of 31.5m. However, it remains compact, with a vehicle length of 8.35m, and is equipped with a patented reverse rotation device.
Following Multitel Pagliero's previous launch of 160 Alu Hybrid and MT162 Hybrid, it has expanded its range with the new MT204 Hybrid. The platform is powered by an on-board battery pack and is based on the Multitel MT162 Hybrid. In this case, the new 20m provides excellent performance with a working height of 20.4m and an outreach distance of 12m. It has a cage load of 200kg and an outreach distance of 9.9m, and a cage load of 300kg. It is installed on a standard MB Sprinter or Iveco Daily 35 S 13, and even with fuel and drivers, the weight remains below 3500 kg.
The MT204H runs on a conventional engine, while the second alternator on the vehicle's engine charges the battery pack. At the work site, the platform can be deployed on its outrigger using vehicle PTO or on-board battery. After that, the platform will provide a full day of work powered by on-board lithium batteries. The battery powers the variable-speed motor, which in turn powers the hydraulic pump to drive the platform.
Of course, the real potential of 100% electrical equipment lies in practical platforms installed on small vehicles, such as truck brackets. Manufacturers of this product type have been expanding their electrical range for several years. It showcased its 100% electric car lift at Bauma Versalift, combined with the existing VTL-120 platform installed on an all-electric Renault Master van. Its working height is 11.7m and the basket capacity is 120kg. The maximum capacity of the vehicle can travel 100 kilometers. The payload of the device is 185 kg, including the driver and passengers.
The 100% electric lift is powered by lithium-ion batteries and provides a small 2.5 kW or large 5 kW power pack. Small batteries can be cycled 20-30 times, and large batteries can be cycled 40-60 times. Versalift can also provide a 100% electric lift through the VDTL-38-140 or VTL-37-135 platform installed on the Renault Master.
France Elevateur has been using battery packs to power the boom for many years, but it has recently combined this option with trucks powered by unconventional methods. An example is the 17m working height of 172CPL. It uses a 7.2-ton Eveco van powered by liquefied petroleum gas. In this configuration, it has a payload of 1 ton and two people in the basket and an abduction distance of 10m.
The company also offers its 121FCCE. This 6.5m working height machine is fully electric, powered by the latest generation of lithium-ion batteries. With a larger battery pack, it can work up to four hours on a single charge. It also provides a smaller battery pack that can work continuously for two hours.
For some time now, France-based Klubb has installed an all-electric elevator on a sectioned Nissan eNV200 truck. It has a working height of 10m and an outreach range of 5m. The company commented that its scale is excellent. "As a European industrialist, we are very concerned about clean energy. Our group has been awarded the PM UP label, which rewards companies that have taken active steps in this field," said Julien Bourrellis, President of Klubb.
Perkins focuses on hybrid and electric power at Bauma. After investing heavily in hybrid engine and electrification research, Perkins demonstrated a series of technologies designed to add value when designing next-generation equipment for OEMs.
Engine manufacturers did not focus on three systems: hybrid electric, hybrid mechanical and hybrid hydraulic technology, which complement Perkins' existing 0.5-18 liter diesel engine series.
Hybrid and electric options cover the EU Stage V power range from 6 to 470 kW, and three engines were displayed on Bauma, all of which are 75 kW, based on the Perkins Syncro 2.8-liter model.
The hybrid electric option is suitable for access devices. There are multiple ways to incorporate electric motors or generators, and Perkins' preferred arrangement can provide fuel savings benefits while reducing installation impact and minimizing the cost impact on the machine. The flexibility of the system provides an opportunity to further improve the efficiency and functionality of the entire machine through the use of 48-volt electrical equipment.
By accessing millions of hours of machine operating data, Perkins found that the operating cycle of real construction machinery varies from application to application and changes as the size of the machine increases. Therefore, the company established the Perkins extended product team.
"There is no one solution for all machines," Perkins said. "Perkins is establishing itself as an integrator with multiple hybrid and electric technologies."
Kubota BUEE (European Engine Business Unit) demonstrated the prototype of its latest micro-hybrid system. Kubota believes that equipment manufacturers will gradually reduce their dependence on any single power source, and the engine itself needs to further improve efficiency.
The Micro-Hybrid system is designed to help manufacturers take advantage of advances in downsizing technology while maintaining machine performance and productivity. It does this by providing up to 10kW of additional power boost when needed. For example, this means that a 3-cylinder engine equipped with a micro-hybrid can achieve a performance level similar to that of a traditional 4-cylinder engine. Therefore, it works in conjunction with the engine, thereby reducing fuel consumption and operating costs, while increasing work efficiency and value.
The system is compatible with diesel, gasoline, LPG and natural gas engines in all power ranges of Kubota.