Outperforms Expensive Nylock Nuts, Maintains Clamp Loads under Severe Conditions

Nifty Lifts, Australia makes Hydraulic Lifts used for forestry, mining and construction, used nyloc nuts to prevent vibrational loosening of these bolts but even nyloc nuts failed to retain clamp load over long periods. Bolts had to be checked and re-torqued frequently as any premature failure can result in accidents. Loctite 277 Threadlockers help the customer to solve these problems. Loctite 277 does what nylock nuts can’t - they filll the gap between threads and locks the threads together - creating a unitized assembly that does not loosen under severe vibrations and thermal cycling.

Contractor Chose Loctite Sealants over PTFE Thread Tapes

Sayer Constructions was installing fire hydrants around building sites in Australia. They had previously used PTFE Thread Tapes to seal the treaded pipe joints in the hydrants. However, thread tapes failed to withstand high pressures and water surges typical in hydrant systems. Loctite 567 PST Thread sealant seals and secures metal pipes and fittings to ensure 100% leak proof joints.

Eliminates Need for Expensive Machining or Brazing
A leading tool manufacturer in Australia was launching new model of pliers for electronic components. They considered press fits or brazing the pliers hands to the jaw but they found that all these methods were undesirable. So they ask henkel for help. Loctite 609 is a low viscosity retaining compound that bonds rigid metal assemblies and was tested for this application. By using Loctite 609 the customer can gain significant savings in machining and process costs compared with press fits or brazing.

Henkel Engineer Provides Solution after Analyzing Process Considerations
The high voltage IHP motors of 150 to 3000 HP rating in India used an RTV silicone sealant to seal the end shield of the motors. However, the seal created by this sealant failed to perform consistently and failed to withstand IP 65* tests. During a plant survey, Henkel Loctite 518 Gasket Eliminator an anaerobic Flange sealant was recommended for this application. It fills all imperfections of cast iron body and end shield. It does not cure until the application on the entire flange area is complete and end shield is assembled thereby eliminating the limitations with previous application method. The assembly passes IP 65 test - eliminating rejections and rework.

Fast Cure Speed is the Key to Improvements
Grommets, specialty clamps and adhesives are often used to secure the lead wires. Due to the small size of the motor, the grommet or clamp were undesirable. Lin Engineering has to find an optimum method for securing the lead wires. Finally they choose Loctite 352 light cure adhesive for this application. The operator manually dispenses a bead of Loctite 352 over the wire connections on the stator wires using a hand held syringe dispenser; after the adhesive is dispensed, the coated motor assembly is placed on a light cure conveyor where a 30 second exposure to light cures the adhesive. After light cure, the lead wire is fully reinforced and immediately ready for subsequent handling.