【Maintenance Improvement】Significantly improved work time and reliability regarding bolt fastening!
Nord-Lock Group's bolt fastening solutions
In most cases, it is possible to significantly improve the situations where bolts "loosen," "break," or where "working time" and "workload" are involved.
In various plant maintenance activities, the removal and re-tightening of bolts is rarely the "goal." Nevertheless, the reality is that addressing issues such as breakage and loosening, as well as the removal and re-tightening process itself, often requires significant time and cost. ■ Events where improvements can be expected (examples) - Loosening of bolts and nuts - Fatigue failure of bolts or breakage for unknown reasons - Reduction of time for bolt removal/re-tightening - Need for reliable measures for fastening parts that require high precision in axial force - Measures to eliminate the need for cranes in the removal/re-tightening of large-diameter bolts - Significant reduction in work time for the removal/re-tightening of large-diameter bolts - Significant reduction in physical strain from the removal/re-tightening of large-diameter bolts - Eradication of galling and seizing - Play in movable parts (due to wear in pin holes) - Elimination of the need for complete part replacement due to wear in movable parts - Elimination of costly service requests due to wear in movable parts - Elimination of the need for bushing replacement due to wear in movable parts Most of the above events can be improved in nearly all cases. For more details, please download the catalog or contact us.
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basic information
**Main Solutions** ◆ Nord-Lock Washers: Physically prevent bolt loosening without relying on friction → Verification test videos available below - Complete prevention of bolt loosening - Prevention of fatigue failure - Reduction of work time while ensuring reliability - Elimination of dependence on worker skill - High axial force accuracy, compatible with lubricants, etc. ◆ Superbolt: Tightening large diameter bolts of M100 grade with just one hand tool in a few minutes - Elimination of crane use for large diameter removal/re-tightening - Reduction of work time and load - Prevention of galling and seizing - Incredible axial force accuracy - Prevention of loosening - Prevention of fatigue failure - Prevention of bolt breakage, etc. ◆ Boltight: Lightweight, non-leaking "evolved" hydraulic bolt tensioner - Reduction of work time and load for large diameter removal/re-tightening - Simultaneous tightening of multiple bolts - Prevention of galling and seizing - Tightening with high precision axial force ◆ Expander System - Complete prevention of play in movable parts - Elimination of pin hole wear - No need for replacement of movable parts or welding repairs ◆ Various Technical Support - Installation and removal support/training through on-site visits - Analysis of causes of issues such as loosening and breakage, and proposal of improvement measures - Various verification tests such as torque-axial force tests and vibration tests
Price range
Delivery Time
P4
※There may be some variations depending on the product.
Applications/Examples of results
Railways (tracks, vehicles, civil engineering, facilities), power plants (turbines, pumps, heat exchangers, generators, pressure vessels, various valves and piping), steelworks and steel mills (blast furnaces, converters, torpedo car bodies, torpedo car tracks, hot rolling, cold rolling, continuous casting, various presses, conveyor systems, etc.), wind turbines, oil & gas, shipbuilding and marine industries, automotive production equipment, motorcycle production equipment, various parts manufacturing, industrial robots, food machinery, electrical equipment, semiconductors, optical devices, construction machinery and heavy equipment, drilling and crushing machinery, agricultural and forestry machinery, among others.
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Company information
Nortlock Japan Co., Ltd. aims to be a partner in solving all bolt fastening challenges, centered around four brands: the "Nortlock Washer," a locking mechanism that does not rely on friction and prevents loosening; the "Superbolt," which allows enormous bolts and nuts that cannot be tightened by hand to be tightened with just one torque wrench; the "Boltight," which can simultaneously tighten multiple large-diameter bolts with uniform pressure; and the "Expander," a pivot pin for construction and heavy machinery that can be used semi-permanently.
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