BAUMA PREVIEW
Hyundai Construction Equipment ’ s HA30A and HA45A ADTs are the first joint product developments between Hyundai Construction Equipment Europe and Hyundai Doosan Infracore , following the purchase of the Doosan business last year by Hyundai Heavy Industries Group
company says .
Aimed at the 30-t and 45-t sectors , the HA30A and HA45A are built around a full-time six-wheel drive concept , with front and rear limited slip differentials and a longitudinal differential that can be manually locked , for maximum drive and traction on difficult terrain .
The two ADTs are the first joint product development between Hyundai Construction Equipment Europe ( HCEE ) and Hyundai Doosan Infracore ( HDI ), following the purchase of the Doosan business last year by Hyundai Heavy Industries Group .
The trucks have a compact chassis design to aid manoeuvrability , with a sloping rear frame and a front-mounted differential integrated into the ZF transmission , allowing for a shorter front frame section .
This , the company says , results in the smallest turning radius in the sector , alongside outstanding stability .
Self-levelling hydro-gas suspension on the front axle further supports a comfortable ride , delivering maximum traction in tough ground conditions . The mounting of the turning ring in front of the chassis articulation point also provides increased stability and traction .
The HA30A and HA45A are equipped with a full hydraulic retarder , combined with an electronic engine brake as standard . This supports the oilcooled wet disc brakes to achieve an extended service lifetime of up to 15,000 hours . A hydraulically-activated mechanical parking brake , meanwhile , holds the machine when stationary .
The trucks are supplied with a gradient meter , with flip-over protection and a Body Over Centre of Gravity function , to assist drivers when tipping and operating on rough terrain . The sloping rear chassis section evenly spreads the load between the front and rear axles .
The HA30A has a 16.8 cu . m heaped body
capacity that rises to 17.8 cu . m with the fitting of a tailgate . The larger HA45A offers a 24.4 cu . m heaped capacity , rising to 26 cu . m with a tailgate . Hyundai has employed powerful EU Stage V- compliant Scania diesel engines for both trucks .
HCE says the Hyundai HA30A and HA45A ADTs provide an ideal excavating partner for a wide range of crawler excavators and wheeled loading shovels and are designed primarily for major earthmoving and muck shifting projects , highways construction and mine and quarry operations .
The HW155H concept wheeled excavator , powered by a hydrogen fuel cell , meanwhile , features a 14-t payload that can offer eight hours of operation with a 20-minute refuelling time , according to the company . It is based on proven hydrogen commercial vehicle technology , HCE says , with the only emission from the machine being water .
ADT automation
As an ADT specialist , Bell Equipment is using the Munich backdrop to showcase its newest generation of the two-axle Bell B45E 4x4 ADT and a vehicle that comes with a width of less than 3 m ( the B30E ADT ).
Both machines offer a compelling advantage to customers with specific requirements , it says .
As a supplement to its range of seven “ traditional ” 6x6 ADTs , with payloads from 18 t to 45.4 t , Bell Equipment has , in the past six years , become the only articulated hauler manufacturer to offer a parallel range of two-axle ADTs , it says .
In the right applications , these machines outperform conventional rigid dump trucks that need good haul roads and three-axle ADTs designed for extreme off-road mobility to operative effectively , Bell claims .
At the upper end , the Bell B60E 4x4 – with a 55-t payload and 35 cu . m dump body capacity – is , Bell says , a benchmark for all-weather operations on undulating ground in open-pit mines or large quarries . At the bottom of the range , the Bell B30E 4x4 ( 28 t , 18.5 cu . m ) is a compact and highly economical solution for sand and gravel pits , material handling or underground operations .
Driver-related assistance systems on board these ADTs include , for example , Hill Assist as well as loading and tipping routines that ensure productivity and safety in equal measure . All electronic assistance and status displays are based on real-time measurement data from the networked vehicle sensors ( on-board scales , tilt and roll sensors , etc ). Much of this information is also available for computer analysis and tracking using Bell ’ s satellite-based machine monitoring system Fleetm @ tic ® .
The digital advances for ADTs do not end there , with achieving an autonomous-ready platform a natural progression for Bell after it successfully integrated its ADTs with pedestrian detection systems ( PDS ) and collision avoidance systems ( CAS ), as standard , in 2019 .
Bell Equipment ’ s Manager : Electrical and Software , Eben Lemmer , says : “ We were first to develop our own telematics solution , Fleetm @ tic , and to introduce onboard weighing , which is standard on our ADTs . When we introduced an inclinometer to improve our on-board weighing accuracy , we saw an opportunity to improve the safety of our trucks with our Hill Start and Tip Safe features that prevent rollback on slopes and rollovers due to tipping at unsafe angles . Similarly , by adding further layers on top of the existing PDS ISO standards , we have created an autonomous-ready platform that uses an open communication protocol principle to integrate easily with third-party suppliers .”
Bell Equipment ’ s focus is on the execution of instructions from those third-party suppliers .
Lemmer explains : “ In the work environment , the guidance software processes all the sensory input , plots a path and sends instructions to the Bell drive-by-wire interface , which electronically controls the acceleration , braking and steering of the truck . Our communication simulator provides the ability to collaborate with service providers by allowing them to test communication and response in the desktop environment prior to going live in-field . This makes it easier to develop and test new software for controlling the Bell ADT .”
Bell first demonstrated that cost-effective remote control is achievable with the right building blocks when it successfully operated a B45E with a video game controller . Since early 2020 , the company has been working with indurad and voestalpine on a lime quarry site in the Alps where the industrial radar specialist has fitted its iTruck autonomous haulage system ( AHS ) on Bell B30E ADTs with excellent results , the company says .
A collaboration with US-based safety and automation technology developer , Pronto AI , followed , with Pronto officially launched its product at MINExpo 2021 in Las Vegas in September . In the next few months , a fully-
SEPTEMBER 2022 | International Mining 19