This coupling is intended for heavy centre-axle trailers, twin steering axle trailers and dollies fitted with drawbar eyes in accordance with standard SS 550100-2 D57. The wise choice for those who operate heavy trailers, twin-steering axle trailers or dollies, require for high performance, and drive under more favourable road conditions. Thanks to the practical and user-friendly design, you get a reliable and durable coupling with low operating costs. The well-proven attachment package, with its large bearing surfaces, has been adapted for large vertical forces.