The company has a group of cooperation teams engaged in the wet core drill supplier industry for many years, with dedication, innovation spirit and service awareness, and has established a sound quality control and management system to ensure product quality.
The news from the concrete coring segment is anything but boring. Two market heavyweights – Hilti and TYROLIT-Hydrostress - launch new products, Kern-Deudiam enters the hardware business, and an increasing number of tool suppliers introduce “positioned diamond” consumables into their catalogues. Andrei Bushmarin reports.
The drill motor is the heart of a core drilling system. High power, compactness, low weight and operational safety are features that professional users require, and suppliers do their best to live up to these demands.
Hilti’s new wet system
Core drilling is a leading business for Lichtenstein-based Hilti. The manufacturer has recently extended its drilling range with a new system for wet applications called DD 160. Designed for rig-based wet coring with up to 200mm core bits, the DD 160 belongs in the mid-range of Hilti’s drilling equipment. The new system is ideal for drilling of holes when installing piping, ventilation ducts or cables. It comes complete with a 2.2kW motor enabling a speed range of 420 to 1,570revs/min, a three-speed gearbox and LED indicators to help users maintain optimum drilling speed. According to Hilti, the new system is easy to operate that even an inexperienced driller can achieve excellent results with it.
Thanks to an innovative change module system, worn-out core bits can be changed quickly, which saves time and allows users to reduce the costs foe each metre drilled. For this model, Hilti has two types of drill stands. The premium drill stand offers increased versatility, boasting features like a tilt mechanism and vacuum base plate for vacuum fastening, while the basic version is for conventional anchor fastening. Hilti addresses the slurry issue by combining the new system with a wet/dry vacuum cleaner such as the Hilti VC 40-U. Slurry is then collected in a container and disposed of.
www.hilti.com
Two new P2 motors from Tyrolit Hydrostress
Switzerland-based Tyrolit Hydrostress forges ahead with its P2 technology, built around the idea of using drive motors with permanent magnets. The key characteristics of these motors, compared with conventional ones, are lower rotating speed and higher torque. This allows designers to create more compact and lightweight systems. The latest water-cooled drill motors from TYROLIT Hydrostress, DME36MW*** and DME36UW*** are based on this technology. Boasting a power of 3.6kW, the new motors cover a diameter range of 50mm to 450mm. With DME36MW*** and DME36UW***, Tyrolit Hydrostress is targeting concrete drilling contractors. Weighing in at just 12kg and width of 100mm, the motors are claimed to set a new benchmark for compactness. Further features include six electronically adjustable speed ranges, a control panel with performance and service indicators and mechanical and electronic overload protection. The motors have a high degree of protection against dust and water entry, which ensures safety during overhead applications. On users’ requests, the motors are available with either a ModulDrill quick-change clamping system or a universal plate. According to the company more models, based on P2 technology, are currently in the pipeline.
www.tyrolit.com
Kern-Deudiam goes into hardware
In July 2013, Germany-based Kern-Deudiam bought the XXL drill rig programme from another German company Longdia, which had filed for bankruptcy. According to Kern-Deudiam, the transition went smoothly, with Longdia customers being able to purchase spare parts or to buy a new drill rig. As soon as Kern-Deudiam acquired the KDS-XXL machines, it set about improving them. A new guide roll system and a fine feed gearbox have been introduced. The KDS-XXL series covers a drilling range of up to 350mm cover and comes complete with a quick-change clamping system. The system weighs 22kg and offers the possibility of 0-55° diagonal adjustment. These features make the KDS-XXL drilling system a very attractive proposition for professional drillers.
www.kern-deudiam.de
New products from Sima
Granada-based manufacturer of compact cutting and drilling machinery Sima has two new drill motors for construction materials, the Drill-4 and Drill-9. Both models have a power rating of 3.5kW and come equipped with a two-speed gearbox and a safety clutch. Depending on the job requirements, the motors can be fitted to three different stands Columna 2, 3 and 5. Made from an aluminium-magnesium alloy to reduce weight, the drill stands feature laser guide, a depth gauge, insulated wheel bearings and gearbox. There are three mounting options available of anchor bolts, a support strut and a vacuum pump. All models can be used on slopes by adjusting their base bolts. The base has four adjustment levels, so users can achieve a vertical cut. Thanks to the handle at the top of the machine and two large wheels, the drill rigs are easy to transport.
www.simasa.com
A diamond-tipped core bit is the crucial element of any drilling system. Recent years have seen the birth and proliferation of so-called positioned diamond technologies. Unlike conventional tooling, diamond tools incorporating this technology have diamond particles placed in pre-determined positions, which is said to increase lifespan and performance. This remains controversial, with users’ opinions varying drastically from fantastic to marketing gimmick. That is probably because the technology is still new, but the number of manufacturers that have mastered it is steadily growing.
Shinhan to launch a third generation of Arix products
Korea-based Shinhan Diamond is one of the most acclaimed pioneers of positioned diamond technology. In some countries, Shinhan’s brand Arix has become a by-word for it. Now the company is about to launch a third generation of diamond tools made by this process. According to the manufacturer, drilling speed has increased by 30% with the G3 core bits, compared to the current Arix products. At the same time, service life has been extended by 20%. This has been achieved by improving the grip of diamond particles inside the bond. Having started with core bits, Shinhan Diamond plans to extend the technology to other types of its diamond tooling.
www.shinhandia.co.kr
Cuts Diamant embraces positioned diamond technology
Italy-based Cuts Diamant has recently joined the ranks of the manufacturers that embrace the positioned diamond technology. The core bits, with positioned diamond for both dry and wet applications, are now available from the company. For dry coring of masonry and lightly reinforced concrete, Cuts Diamant offers the core bit CF 101 and the 271. For wet drilling of heavy reinforced concrete as well as masonry, the company recommends the core bit CF 380. The core bits feature laser-welded segments to improve drilling performance and prevent segment detachment during operation.
www.cutsdiamant.com
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