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The use of automated guided vehicles is booming. The reasons are obvious: companies can use automated guided vehicles (AGVs) to increase the effi-ciency of material flow, make work easier for employees or compensate for the shortage of skilled workers. However, it is important that automation technology is reliable and economical in use. For automated guided vehi-cles, this means: the autonomous electric car cannot afford any failures in everyday operation. They have to work around the clock, seven days a week, 365 days a year. A challenge for AGV manufacturers, which can be overcome by combining reliable and cost-efficient components.

Tribo-polymer bearings reduce maintenance costs

The reliability and energy efficiency of an AGV can be significantly in-creased with motion plastics from igus. "Lubrication-free and maintenance-free iglidur tribo-polymer bearings, which are used in the tilting devices and scissor lifts of AGVs, are up to 60 per cent lighter than metal bearings. This saves vehicle weight and increases performance," says Christian Strauch, Industry Manager Material Handling at igus. The bearings are extremely durable. "Fibres and fillers reinforce the bearings for absorbing high forces and edge loads. And integrated solid lubricants ensure a maintenance-free dry operation." In addition to tribo-polymer plain bearings, the plain bearing range from igus also includes linear, slewing ring, spherical and ball bear-ings.

Knapp Industry Solutions equips AGV with igus lead screw modules

The igus AGV range also includes electrically driven lead screw modules. The users include Knapp Industry Solutions, which produces the "Open Shuttle" - a vehicle that drives autonomously through factory halls and transports boxes between roller conveyors. The shuttle is more flexible than intralogistics automation solutions of the past and can be quickly adapted to changing processes. The roller tray of the vehicle must be flexible and able to constantly adapt to different transfer heights. The movement takes place via two light and robust drylin SLW lead screw modules, which are equipped with maintenance-free polymer liners and lead screw nuts and score points with high reliability and a long service life.

igus e-chains and cables increase the operating times of AGVs

The installation spaces in AGVs are often very limited. Nevertheless, in or-der to guide cables safely, igus offers energy chains with very narrow bend radii. These include the E2 micro, which is designed for extremely tight spaces. It is light, has a small bend radius and an inner height of only five millimetres. igus also has the matching e-chain cables in its product range, with or without plug-in connectors, including those that can be used in AGVs operating in cold storage at temperatures as low as -35 degrees Celsius. In order for the customer to be sure that the data and energy supply of his AGV is working reliably even under these adverse conditions, igus operates a cold chamber in Cologne where the cables are tested under real condi-tions. The chamber is part of the 3,800 square metre igus test laboratory, where two billion test cycles are completed annually. As a result, igus is the only provider capable of offering a unique guarantee of 36 months on its cables. This gives AGV manufacturers as well as their customers additional reliability in the operation of automated guided vehicle systems.

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