BAUMA PREVIEW
column bond independent of the size of the hole .
The pumpable resin can be pumped into the borehole through an injection pipe prior to insertion of the cable or bolt , with the setting time adjusted to achieve a longer open time , enabling installation of a cable or solid bolt into a pre-filled borehole .
Once mixed , the set resin is unaffected by water , while the product is non-foaming and can even adhere to damp surfaces .
“ The pumpable resin is available in different reaction times and requires a 1:1 volumetric ratio between the resin and catalyst ,” Epiroc says . “ Deviations from the ratio result in a reduction in cured resin strength .”
Epiroc developed this resin mixing and injection system for its Boltec rock bolting rigs , ensuring a quality resin mix for every installation . The closed loop system controls the flow rate of each component separately , ensuring the ratio is maintained and the volume of resin injected is monitored . The skid pump system is a replica of the Boltec resin injection system , allowing off-rig pumping and installation of pumpable resin rock reinforcement systems .
Bauma ’ s mining-focused attendees might also be interested in an update to an Epiroc product aimed at the trenching and quarrying markets .
In April , Epiroc launched its V-shaped drum cutter , heralding it as a brand-new way to work with rock , concrete wall and surface profiling , trenching , soft-rock excavation , frozen soil excavation and demolition . A patent-pending solution , it has been tested in all these applications .
Mounting the drums in a V-shape enables a cut with a flat base where no material is left untouched between the drums , according to Epiroc . Where a regular drum cutter would move from side to side to create an even trench – an approach that causes extra wear on the carrier arm – the V Cutter can reach the same result by going straight .
“ This means the user can dig a more accurate trench much faster ,” Epiroc says . “ It basically works like a bucket , which makes it easier to use , friendlier for the carrier and a lot less energy and time consuming .
“ A seemingly simple solution with extraordinary effectiveness , the V Cutter enables energy savings of up to 40 %.”
In addition , compared with a chain cutter , the user saves more than 40 % on picks and up to 50 % on maintenance time ; the investment is up to 25 % lower than for a chain cutter and the lower weight makes it possible to use a smaller carrier , Epiroc says .
At Bauma , Epiroc will introduce the latest addition to the V Cutter range – a smaller model suitable for carriers of 15-28 t .
PAUS ’ forward-looking approach
After already showcasing its battery-electric vehicle and corresponding electric driveline concept at Bauma 2019 , PAUS is intending to bring even more new developments to the 2022 edition later this year .
The machines to be showcased in October include the PAUS Scaler PScale 8-T , the PAUS concrete mixer UNI 50-5 BM-TM and the PAUS dump truck PMKM 8030 .
In addition to the brand-new designs and individual characteristics of the displayed machines , all of them will be featured with the latest technologies as part of PAUS ’ general and forward-looking product developments .
Safety , performance , sensitivity and high durability are the design principles and values PAUS used for the development of its new PAUS Scaler PScale 8-T generation in order to provide what it says is a “ unique scaling experience ”.
“ In underground operations rock falls could potentially lead to fatalities , injuries and damage to underground personnel and infrastructure ,” the company said . “ To ensure a higher safety working environment , any loose rock needs to be removed before the follow-up processes can be started .”
The highest performance possible is ensured thanks to the use of a high power output engine , 20 ° tiltable cabin , individual parameter adjustment of the hydraulic hammer , and operation and diagnostic display , which help provide higher reliability and quality of the scaling process .
The PScale series allows operators to adjust and check hammer parameters directly at the face instead of adjustments on the surface , while the operator ’ s cabin outperforms international ROPS / FOPS requirements . Other risks can be further alleviated by using additional configurations , such as plug-and-play for the remote control , 3P safety belts , a brake test button , hill start assistance and a pressurised cabin .
For working heights up to 10 m , Paus additionally offers the PScale 10-T .
The PAUS concrete mixer UNI 50 BM-TM offers a transport solution with a higher payload as well as safe and comfortable driving characteristics , even on rough terrain , PAUS says .
The larger UNI 50-5 carrier , which highlights the new chassis of the UNI series , comes with a payload of up to 17 t , increased ground clearance , a more powerful driveline and a spring-mounted fully suspended front axle , according to the company .
With an available volume of up to 7.5 cu . m , the PAUS transport mixer is a reliable partner for successful concrete works in underground mining , it says . The UNI 50-5 carrier can also be provided with further superstructure such as fuel tanks , lubricant service , water tanker , fire tanker , loading platform with crane and
PAUS ’ PScale series allows operators to adjust and check hammer parameters directly at the face instead of adjustments on the surface
many more . Further to that , PAUS is offering a variety of customised configurations and options to meet the individual requirements of the different underground operations and conditions . The carrier can also be equipped with different types of changeable systems for carrying cassette- mounted superstructures .
PAUS delivers the UNI 50-5 BM-TM with an engine power of up to 173 kW with Deutz or Mercedes Benz engines . The machine can also be fitted with Stage V compliant engines .
The PAUS dump truck PMKM 8030 , meanwhile , is designed for narrow-vein operations , with a compact yet powerful configuration .
The combination of the improved design and characteristics with the latest electronics and a preliminary setup for smart equipment will provide a future-oriented solution in terms of operator comfort and safety , but also efficiency , productivity and operating cost for haulage in narrow-vein mines .
The well-established sister machine , PMKM 8010 , is designed with less width at increased length and height , but the new PMKM 8030 comes with a broader , shorter and narrower design at a reduced loading height and with improved driving characteristics thanks to the lowered centre of gravity , larger tyres and new axles with integrated oscillation , PAUS says .
With a payload of 16,000 kg , the machine is fitted as standard with a 8 cu . m dump box and can be further customised for transport of bulk materials with higher or lower densities .
The machine is also available with smart
22 International Mining | SEPTEMBER 2022