The Swedish Rocky Journal

Sunday 5 September, 2010

Bolt securing manufacturer - new member of SMTG

Published 2010-01-02 16:09:02 | Updated 2010-01-13 10:30:34

Nord-Lock became a member of SMTG in September 2009. Based in northern Sweden, Nord-Lock produces a wedge locking system which provides bolt security to a large variety of industries worldwide. In tunnelling, mining and drilling equipment, the Nord-Lock system has proven to be very effective against bolt loosening.

Bolt securing manufacturer - new member of SMTG

Vibration test diagram More images (2)More images

Nord-Lock is used where strong vibration can cause bolted joints to vibrate loose. The reliable securing component is commonly used in applications exposed to severe vibration and dynamic loads, such as hydraulic hammers, mobile crusher units, screens, feeders, raise borers, drill rigs, underground loaders, pumps, compressors, crawler tracks and conveyors.

Nord-Lock uses tension instead of friction to secure bolted joints. Thereby the risk of unintentional loosening is eliminated. The vibration test diagram shows the bolt tension of some common fasteners during a Junker vibration test, according to the DIN 65151 standard. Most of the commonly used locking devices show limited performance when exposed to vibration. The vibration tests with Nord-Lock show a positive result; only some initial tension is lost due to normal settlements. The wedge-locking function proves itself with the clear increase in tension during un-tightening.

Nord-Lock performs live Junker demonstrations and offers local support through its sales offices and partners. Find out more about the Nord-Lock bolt securing system through www.nord-lock.com.

Webadmin

Tags: Securing components

Be the first one to comment on this article

Leave a comment

Better bolting in the heart of Lapland

2010-08-16 | At the LKAB mine in Kiruna, northern Sweden, the latest bolting technology is making rapid progress on a massive reinforcement project. Careful planning, effective tools and a comprehensive training programme got the project up-and-running with remarkable efficiency.

GIA debut on Hong Kong drainage tunnel project

2010-08-02 | Two GIA Häggloaders and three GIA locomotives, each pulling three shuttlecars have been delivered to Hong Kong’s West Drainage Tunnel Scheme for ‘spoil’ removal from 29 adits totalling 8 km. Making their debut in Hong Kong, the GIA units were ordered specifically by Joint Venture contractors Dragages-Nishimatsu for their ability to work in small diameter tunnels. A complete "line-up" of GIA tunnelling equipment comprising locomotives, suttlecars and Haggloaders have been delivered to the Dragages-Nishimatsu JV for work on the Hong Kong Drainage Tunnel Scheme.

Continuous monitoring enables complicated work

Continuous monitoring enables complicated work

2010-06-21 | The old railway bridge crossing the Södertälje channel had reached an age of almost 90 years. Excessive maintenance created repeated interruptions in rail traffic and cost a lot of money. The Swedish Railroad Administration therefore decided to build a new bridge. Bergsäker was given the responsibility for the extensive measurement program in a very complex terrain

Monitoring critical geotechnical parameters in the Göta valley

Monitoring critical geotechnical parameters in the Göta valley

2010-05-24 | When the Swedish Road Administration and the Swedish Railroad Administration needed a system for monitoring critical geotechnical parameters along one the biggest infrastructure projects in Sweden, the “BanaVäg i Väst” project, they turned to Bergsäker.

Indian iron ore - great future with many problems

2010-05-10 | 500 million tonnes, more than double the production of 2009 (200 Mt), was set as a realistic figure for annual Indian iron ore production in 2020, at the iron ore conference organised by the Indian Journal of Mines, Metals and Fuels in cooperation with Raw Materials Group, Sweden.

Partner for safety and security

2010-04-26 | Bergsäker creates security for builders and local residents, in connection with construction and environmental projects. The AvaSystem from Bergsäker has been used for monitoring of critical parameters in a long row of infrastructure projects.

Wolis - Wireless Online Loading Information System

Wolis - Wireless Online Loading Information System

2010-03-01 | Information shall be collected where it’s created and be delivered where it’s needed. This is where Wolis steps in.

Resistivity – a method for finding anomalies

Resistivity – a method for finding anomalies

2010-04-06 | Resistivity is a method based on transmitting a known current into the ground and receiving the associated tension response. The result can then be used for finding anomalies compared to the undisturbed soil or rock.

Geophysics – a versatile tool for ground investigations

Geophysics – a versatile tool for ground investigations

2010-02-15 | For more than a hundred years, geophysics has been instrumental to the mineral exploration industry, which was the target already at the beginning of the geophysical science sector. The challenge for the geophysical community is now to widen its scope into other earth science sectors.

Project capability settles the success

Project capability settles the success

2010-02-08 | The total commitment for the process control of LKAB’s new plants for concentration and sinter pellet in Kiruna was a tough task for the Midroc competences. The project skills, the ability to mobilise resources, coordinate deliveries and to adjust the organisation were of great importance.

Stockholm City Line

Stockholm City Line

2010-01-28 | The Stockholm City Line will be a 6 km double-track underground railway in the capital of Sweden. The project cost is the largest railway investment since the Stockholm Metro was built 60 years ago. Nitro Consult has been involved in the project since the beginning, with ground investigations, measurements of vibrations, noise and structure-borne sound, risk analyses and much more.

RMG’s metal price forecasts for 2010 – A rollover from 2009

2010-01-04 | In its annual full-year forecast for 2010, the Raw Materials Group (RMG) expects metal prices to have bottomed out and 2010 to be another year with high metal prices. A falling market has been replaced by a market with physical demand and likely strong speculation over prices. Entirely in line with last year’s RMG forecast, all metals except gold fell during 2009 compared with 2008. RMG believes that the metal price bottom for this period of economic downturn was passed early in 2009 and for 2010 RMG forecasts another year of volatile metal prices with a mean price below the current day level for most metals.

Blasting project at nuclear plant

Blasting project at nuclear plant

2010-01-16 | Blasting just nearby a nuclear plant is an extremely delicate task, in which safety cannot be jeopardised in any way. When OKG decided to upgrade and modernise the turbine hall at the Oskarshamn 2 power plant, they turned to Bergsäker for assistance with blasting technology and risk analysis.