HSD Series Rotary Screw Compressors

Quick Overview

Every water-cooled HSD series rotary screw compressor comprises two compressor units, each of which operates and is controlled independently from the other. System availability is also optimised, which means that performance can be precisely adjusted to suit requirement and costly idling can be kept to an absolute minimum. KAESER’s meticulous attention to detail, such as large double doors to assure excellent component accessibility, external air intake via openings in the roof hood and the use of two large internal fans for optimised cooling performance, ensures user-friendly operation and exceptional ease of maintenance. The impressive energy efficiency results from the improved specific performance of the further refined SIGMA PROFILE screw airend rotors. In addition, high efficiency IE4 motors provide loss-free 1:1 direct power transmission to the compressor airend. The SIGMA CONTROL 2 compressor controller’s master-slave function also allows compressor performance to be efficiently adjusted according to actual compressed air demand. Therefore, with selectable control options and through minimised (costly) idling periods, for example, it is possible to save even more energy. Successful package design goes far beyond external appearance: it’s what’s on the inside that truly counts, especially when it comes improving efficiency. For example, the fluid separator cartridges can be easily replaced from the top of the package once the roof hood on the outside left-hand side has been lifted up. This not only saves time (and money), but also increases compressor availability. HSD series rotary screw compressors are perfect for high-efficiency industrial compressed air stations. Various interfaces of both internal SIGMA CONTROL 2 compressor controllers enable easy, secure and efficient networking in the KAESER SIGMA NETWORK with the Industrie 4.0-capable SIGMA AIR MANAGER 4.0 management system and/or other centralised control systems. Powered via an electric motor, the sensor controlled temperature control valve integrated into the cooling circuit is the heart of the innovative Electronic Thermo Management (ETM) system. The SIGMA CONTROL 2 monitors intake and compressor temperatures in order to safely prevent condensate formation, even under conditions with higher air humidity. The ETM dynamically controls the fluid temperature, and low fluid temperature enhances energy efficiency. If heat recovery is used, this can be adjusted to better meet the customer’s requirements thanks to two additional ETMs.