2013 BSD Product Overview

Models:  BSD 40 (T)  BSD 50 (T)  BSD 60 (T)  SFC 37 (T)  SFC 45S (T) Compressor Models © 2013 Kaeser Compressors, Inc., USA / V1.1 / 2

BSD Product Overview Compressor Features and Benefits Summary Remote grease fittings for drive motor and fan motor Sigma Control 2 TM Energy-saving control strategies Multiple communication protocols Browser-based accessibility SD card for easy upload/download More… New cabinet layout: New cabinet dimensions Parallel cooling air flows More… © 2013 Kaeser Compressors, Inc., USA / V1.1 / 3

BSD Product Overview Compressor Features and Benefits Summary © 2013 Kaeser Compressors, Inc., USA / V1.1 / 4 Control cabinet ventilation inlet: Coolest possible air source (part of parallel cooling air flows) Over-sized control cabinet: Easy access Separate add-on cabinet for SFC no longer required Control cabinet ventilation outlet

BSD Product Overview Compressor Features and Benefits Summary Control air exhaust Drive motor air intake: Coolest possible air source (part of parallel cooling air flows) Oil and aftercooler air intake: Coolest possible air source (part of parallel cooling air flows) Coolers easy to clean © 2013 Kaeser Compressors, Inc., USA / V1.1 / 5

BSD Product Overview Compressor Features and Benefits Summary Compressed air discharge Condensate discharge Inlet air intake: Coolest possible air source (Part of parallel cooling air flows) Improves specific power © 2013 Kaeser Compressors, Inc., USA / V1.1 / 6

BSD Product Overview Compressor Features and Benefits Summary Temperature control valve: Stable operating temperature Controls or eliminates internal condensation Controlled cold start warm-up Fixed speed fan motor with greasable bearings Long motor life Optimized operating temperature Eco-friendly lubricant filter: Reusable aluminum housing Disposable element Premium efficiency drive motor with PT100 temperature sensor: Lower input kW Reduced idle power consumption Optimized airend: Greater displacement Optimized for speed of motor (1:1 drive) Up to 25% improvement in specific power © 2013 Kaeser Compressors, Inc., USA / V1.1 / 7

BSD Product Overview Compressor Features and Benefits Summary Eco-Drain: Saves power cost by not wasting compressed air High-efficiency moisture separator: Removes condensate with minimal pressure drop Stainless steel discharge pipe Improved separator tank: Inlet optimized for improved separation Fluid fill port easily accessible © 2013 Kaeser Compressors, Inc., USA / V1.1 / 8

BSD Product Overview Sigma Profile and Specific Power Advantage Optimized Sigma Profile results in larger displacement Airend specifically designed for most efficient performance at motor speed (1:1 direct drive) 5:6 lobe design with unequal size rotors reduces back-flow losses © 2013 Kaeser Compressors, Inc., USA / V1.1 / 9

BSD Product Overview Sigma Profile and Specific Power Advantage Precision ground finish on rotors mean… Closer tolerances to reduce back-flow losses Less fluid friction and shear to reduce input energy requirements Specific power improvement as high as 25% improvement compared to others © 2013 Kaeser Compressors, Inc., USA / V1.1 / 10

BSD Product Overview Standard Drive Motor Features Premium efficiency (IE4) for lower input kW:  IE4 = highest efficiency  EISA compliant TEFC design protects from dirt, dust, moisture, etc. Anti-vibration motor mounts PT100 temperature sensor Typical Drive Motor © 2013 Kaeser Compressors, Inc., USA / V1.1 / 11

BSD Product Overview 1:1 Direct Drive Most efficient drive system: No belt or gear losses Sacrificial coupling element: Protects motor in the event of airend seizure Longer bearing life: Minimizes radial loads on motor and airend bearings Quiet: No gear or belt noise Easy to service: Cast iron spool piece assures perfect alignment Direct Drive Coupling Between Airend and Motor © 2013 Kaeser Compressors, Inc., USA / V1.1 / 12

BSD Product Overview Sigma Control 2 TM Energy-saving control strategies Multiple communication protocols Integrated web-server for browser-based access to a host of features SD card for easy upload / download RFID key ensures authorized access Sigma Control 2 TM with RFID Key © 2013 Kaeser Compressors, Inc., USA / V1.1 / 13

BSD Product Overview Dynamic control - Monitors motor winding temperature to minimize idle time Vario control - Optimized control for like-sized compressors Quadro control - Optimized control for base load compressors Dual control - Online / offline with idle timer auto shut-off Continuous Sigma Control 2 TM - Selectable Control Strategies Dynamic Control - Sigma Control 2 TM Monitors Motor Temperature PT 100 © 2013 Kaeser Compressors, Inc., USA / V1.1 / 14

BSD Product Overview Sigma Control 2 TM - Communication Protocols Standard connectivity: Ethernet (web browser access) RS 485 I/O Bus RS 485 USS Interface Optional connectivity: Profibus (shown) Modbus Devicenet Profinet © 2013 Kaeser Compressors, Inc., USA / V1.1 / 15

BSD Product Overview Sigma Control 2 TM SD card slot: Software updates:  No longer need to bring laptop on site  Faster transfer rate Back-up user settings Transfer message history for quick diagnostics Gather performance data for system analysis Sigma Control 2 TM with SD card © 2013 Kaeser Compressors, Inc., USA / V1.1 / 16

BSD Product Overview ETM: Electronic Thermal Management Sigma Control 2 TM Temperature Control Valve Airend Discharge Temperature Inlet Temperature 24 VDC © 2013 Kaeser Compressors, Inc., USA / V1.1 / 17 Sigma Control 2 TM monitors inlet and airend temperatures Sigma Control 2 TM adjusts Temperature Control Valve Temperature Control Valve regulates oil flow through cooler

BSD Product Overview Improved warm up on cold start Improved heat recovery adjustments Temperature Control Valve Motorized valve optimizes operating temperature in varying ambient conditions Stable operating and discharge temperatures reduce material fatigue Reduces or prevents formation of condensate in oil circuit Kaeser’s New Temperature Control Valve © 2013 Kaeser Compressors, Inc., USA / V1.1 / 18

BSD Product Overview Energy-savings: Decrease operating temperature as low as 20°F with specific power savings as high as 1.5% (night and cooler seasons) Lower, stable operating temperature:  Extends life of airend and cooler due to lower thermal stress and cyclical fatigue  Lubricant remains in best possible condition between oil changes Improved heat recovery option: Heat recovery easily adapted to match customer needs 19 Advantages of ETM © 2013 Kaeser Compressors, Inc., USA / V1.1 /

BSD Product Overview High-Efficiency Moisture Separator with Eco-Drain Efficient removal of liquid condensate and low pressure drop No air loss Eco- Drain sends alarm to Sigma Control 2 TM Stainless steel construction © 2013 Kaeser Compressors, Inc., USA / V1.1 / 20

BSD Product Overview New Environmentally-Friendly Fluid Filter Element Long-life aluminum filter housing No need to replace housing Metal-free eco-friendly filter element Allows thermal disposal after use Filter element © 2013 Kaeser Compressors, Inc., USA / V1.1 / 21

BSD Product Overview Package Layout - Ventilation / Cooling: T Unit Lower air temperature means lower average cooler temperature Lower air temperature improves heat transfer Lower air velocities reduce noise Parallel cooling air flow paths improve efficiency: View from back of T unit © 2013 Kaeser Compressors, Inc., USA / V1.1 / 22

BSD Product Overview Package Layout - Easy Maintenance Access Air filter Fluid filter Drive and fan motor grease fittings Control cabinet filters (side) Maintenance monitor (Sigma Control 2 ™ ) Fluid fill and drain from front of unit Thermal management system © 2013 Kaeser Compressors, Inc., USA / V1.1 / 23

BSD Product Overview BSD Package Dimensions © 2013 Kaeser Compressors, Inc., USA / V1.1 / / /2 New BSD 17.6 sq. ft. New BSD (T) 22 sq. ft /2 78 1/4

BSD Product Overview Package Layout - Optional Dryer Slimline profile due to new air-to-air heat exchanger design with integrated condensate separation Short piping runs between cooler outlet and dryer for minimized pressure drop Scroll refrigerant compressor for reduced power consumption © 2013 Kaeser Compressors, Inc., USA / V1.2 / 25

BSD Product Overview Package Layout – SFC models Variable speed drive motor: Fully integrated drive - No add-on cabinet Short cable run between frequency converter and motor terminals Clean wire runs SINAMICS drive – Latest Siemens drive Line reactor and EMC filter standard for protection of unit and customers power system © 2013 Kaeser Compressors, Inc., USA / V1.1 / 26

BSD Product Overview © 2013 Kaeser Compressors, Inc., USA / V1.1 / 27 Sigma airends - Up to 25% better specific power compared to others IE4 drive motor - Decreased power consumption 1:1 Direct drive - Reliable, efficient and quiet Sigma Control 2 TM  Selectable control strategies - Reduced idle power consumption  Multiple communication protocols – Include web browser accessibility  SD card slot - Easy programming and data access Electronic Thermal Management (ETM) - Stable operating temperature Summary

BSD Product Overview © 2013 Kaeser Compressors, Inc., USA / V1.1 / 28 High-efficiency Kaeser moisture separator - Low pressure drop Environmentally-friendly fluid filter element Improved package layout:  Parallel cooling air flows - Coolest air to all components  Easy maintenance access  New cabinet dimensions  Optional T-series - Integral, high-efficiency refrigerated dryer  SFC series - Integral variable speed drive Summary