Use of Loctite® 770 Allows Adhesion on Inactive Surfaces

A leading manufacturer of electric motors, geared motors, torque limiters, variable frequency drives, soft starters and more in Australia used PP capacitor boxes. Customer wanted to lock threaded plastic parts of these capacitor boxes made of Polypropylene. Customer tested competitive, general purpose adhesives but these fail to perform. PP is a low surface energy material and is difficult to bond.

Reduces Field Complaints

A leading manufacturer of small domestic appliances was using star washers to lock the yellow passivated M4 screw of top lid handle of domestic pressure cookers they were making. They had several field complaints of handle loosening over the usage period as the star washer not only failed to retain the clamp load but also was unable to accommodate difference in thermal expansion between dissimilar materials.

Manufacturing Reliability Training Gives Maintenance Team The Know-How.

A large tissue manufacturer in the Midwest uses special vacuum reel spools on their 200″ trim twin wire Yankee paper machine. When one roll is almost complete, a new spool is swung into place on the backtender. A vacuum is created inside the new spool by inserting a hose into the vacuum flange. Once the sheet from the full roll is broken, this vacuum draws the tissue onto the new spool, which is already up to a full operating speed of one mile a minute.

Prevent Misalignment Problems and Equipment Failures.

Hydropulpers are machines designed to agitate a mixture of paper pulp and water to prevent dewatering until this mix can be used in the papermaking process. These particular hydropulpers are driven by 150 hp motors coupled to right angle gearboxes. Coupled to the output shafts of the gearbox is a large blade which is in the bottom of the hydropulper vat. Due to extreme vibration incurred by the hydropulper, our customer was having problems keeping the mounting bolts for the gearbox tight.

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.