if your load is particularly heavy, we will make things easy for you. our ct trolleys are renowned for outstanding reliability and low maintenance costs. they have been specifically designed to suit modern control systems......if your load is particularly heavy, we will make things easy for you. our ct trolleys are renowned for outstanding reliability and low maintenance costs. they have been specifically designed to suit modern control systems with frequency converters. the latest vector control devices allow for simple and safe operation. our ct trolleys are of a compact lightweight design and enhance the working environment. the standard model features a two-rope hoist that does away with excessive hook travel.