Sandvik’s exhibit at this year’s Hillhead quarrying and recycling show in the U.K. included crushers, screens, screening media, a DTH drill and the return of the Rammer brand name for the company’s range of hydraulic breakers and ancillary equipment. And, the suggestion was made, that could be the first in a new focus on some of the strong brand identities that attracted customer support in the past, but were subsequently subsumed within Sandvik’s corporate structure. Mobile equipment on display included the QH331 cone crusher, QI240 impact crusher, and QJ241, QJ341 and UJ440 jaw crushers.
Drill Rig Offers Active System Controls
Designed for a 5-in. hammer, the DI550 DTH drill rig is powered by a 324-kW engine and has a 24.4-m3 compressor at 24 bar pressure. Cost-effective machine performance is enhanced, Sandvik said, by features such as active diesel RPM control, optimized diesel RPM level during drilling, and active control of the compressor running temperature.
For the operator, the rig’s control system uses simple icon displays and gives comprehensive service information, with the positive pressurized, air-conditioned ROPS/FOPS cab providing good visibility. The windshield comes with a strong safety bar that is easy to open for cleaning. A low-maintenance dust collector complements other features such as the engine compartment’s open layout, easy cooler cleaning, modular compressor control system and simplified electric system, the company states. A fast fuel-filling option and large fuel tank further cut downtime.
Redesigned Jaw Crusher
Sandvik launched its QJ341 tracked jaw crusher at the show, the machine having been redesigned from the previous model, the QJ340, to incorporate a power plant that meets the new engine-emission control regulations. Features retained from the earlier machine include a 1,200 × 750-mm (48 × 30-in.) feed opening, hydraulically adjustable CSS, high reduction ratios, crushing speed and productivity, reverse crushing action to relieve blockages, and an automatic central lubrication system.
New features added to the QJ341 include a load-control system for the feeder drive, a level sensor fitted to the jaw and a speed wheel fitted to the main conveyor. Other new features include a choice of Stage 3A/Tier 3 or Stage 3B/Tier 4i engines, a user-friendly PLC control system and color screen allowing visual data output and control, more controlled maneuverability, and the capability to work at 50°C ambient temperature without the need for a change of oil.
The QJ341 is designed for use in surface mining, aggregates production, quarrying and recycling, as is the UJ440i, one of Sandvik’s range of heavy mobile crushers. The engines used in these machines require the addition of urea or AdBlue solution, with the crushers having been designed to give higher efficiency to help offset the cost. In addition, the SCR system puts less wear on the engine, which will result in reduced maintenance, Sandvik said.
The UJ440i has a 1,200 × 800-mm (48 × 32-in.) jaw size, with production being monitored continuously by an ‘intelligent’ control system. A key feature, the company claims, is the use of direct drive between the engine and the crusher, helping to maximize the transfer of power.
Rammer: Four Large
Marking its return to Hillhead after a five-year brand absence, Rammer’s exhibit featured four models from its ‘Large’ range of hydraulic hammers: the 3,540-kg Rammer 4099; a pair of 2,350-kg 3288 models, one in heavy duty, the other in hard rock configuration; and a 1,700-kg 2577. Designed around a new operating principle that can be matched to specific applications, the 3288 and 4099 are suitable for carriers in the 27-40 mt and 35-60 mt operating weight classes, respectively.
The new operating principle combines stroke length, blow energy and Rammer’s idle blow protector, and is easily modified to allow breakers to be matched to individual carriers and applications, improving the hydraulic efficiency and productivity, Sandvik said. As with all new large-range hammers, the 3288 and 4099 feature the VIDAT system, which the company claims provides improved reliability and lowers operating costs, a state-of-the-art sealing system, and enhanced lubrication. They are manufactured with a heavy-duty housing and a Hardox lower boot for optimum wear resistance, and are designed to be easily maintained.
Also on display was a Rammer D425 pedestal-mounted breaker boom equipped with a 777 hammer. A lightweight, multi-purpose boom, this has been designed to be mounted on track-mounted mobile crushing plants, and to clear blockages and bridging. It features a low-profile three-piece boom with 360° rotation, and can offer major operational, productivity and safety advantages in surface mining and quarrying applications, according to Sandvik.