The Group With 23 companies in 18 countries Witzenmann is number 1 in the industry worldwide. World leader Witzenmann is a global group of companies that specialises in flexible metal elements. Our company is renowned as an innovative development partner and reliable manufacturer within the industry thanks to our vision of "managing flexibility". Today, Witzenmann offers the widest range of products for the most diverse areas of application. This enables us to offer the correct solutions time and time again. Flexible metal elements for construction Equipment Witzenmann GmbH Östliche Karl-Friedrich-Str. 134 75175 Pforzheim, Germany Phone +49-7231 581-0 Fax +49-7231 581-820 wi@witzenmann.com www.witzenmann.de
References Construction equipment Atlas Weyhausen, Bomag, Case New Holland, Caterpillar, Doosan Infracore, Hyundai Heavy Industries, JCB, John Deere, Kion Group, Komatsu, Liebherr, Putzmeister, Tandano Faun, Terex, Volvo Construction Equipment, Wacker Neuson Group, Wirtgen Group, Zeppelin Baumaschinen Flexible metal elements for construction Equipment Engines Bergen Engines, Caterpillar, Cummins, Daimler, Deutz, Fiat Powertrain, GE, MaK, MAN Diesel & Turbo, MTU, Hyundai Heavy Industries, Paccar, Perkins, STX, Wärtsilä Trucks/Buses Bharat-Benz, DAF Trucks, Evobus, Freightliner, Fuso, Irizar, IVECO, MAN, Mercedes Benz, Van Hool, VDL Bus, Volvo Agricultural equipment AGCO, Case New Holland, John Deere Engine (Pages 4-5) Approvals/certificates Association Euro-Qualiflex EJMA Expansion Joint Manufactures Association ISO/TS 16949; ISO/TS 14001 Exhaust system (Pages 6-7) Global Compact CTPAT Exhaust gas after-treatment (Page 8) Exhaust system (Pages 6-7) 2 3
ENGINE Flexible pipe elements are used on the engine for absorbing thermal expansion, vibration and for compensating installation tolerances. Depending on the mounting situation, the components are supplied pre-shaped to customised requirements. This minimises subsequent assembly costs. Exhaust gas area: collecting main, bypass, before and after turbocharger, charge air; manifold area, oil return lines. p Technically oil and gas-tight p Temperature, pressure and corrosion resistant p Aging resistant p Compact design for tight installation conditions Exhaust gas collecting main Charge air pipe p V-rim expansion joint with guiding tubes clamped on both sides p V-rim as turned part for holding a seal and clamps of the guiding tubes p Counterpart according to customer specification p Special V-rim clip with profile segments made from solid material for relatively high clamping forces in high-temperature applications p 3-Dimensional design as p Smooth tube elbow (from in-house production up to DN 150) p Casting p Bend in the corrugated area p Combinations of the different types are possible expansion joints Oil/exhaust gas recirculation pipe With V-rim or flanges Special ducts With cast connecting parts p 3-Dimensional design as smooth tube elbow or as bend in the corrugated area p Connection by flange, union nut, V-rim connection or according to customer specification p With and without insulation or heat shield p Integration of diffuser or inner-sleeve possible Special p With and without inner-sleeve p With and without insulation p With inner-sleeve p With and without insulation p Design of cast elbow according to customer specifications p Stainless steel p Cast iron 4 5
Exhaust system Structure-borne noise decoupling elements p Short, compact metal bellows with external mesh p With inner-sleeve Decoupling elements or flexible pipe systems are used in the exhaust line between the engine and exhaust gas after-treatment. Decoupling elements can be configured as bellows or stripwound hose assemblies. p Optimised flow technology p Geometric and technical characteristics as well as the connection technology can be adapted to the particular customised mounting situation p Technically gas-tight p Temperature, pressure and corrosion resistant p Aging resistant p Decoupling of engine movements, expansion and vibration p Noise insulation p Compensation for installation tolerances Stripwound hose lines p Corrugated profile p Agraff profile p Adequately technically gas-tight, low leakages p Not sensitive to torsional movements Decoupling elements Pipe systems for the exhaust gas area p Circular, oval p With and without inner-liner p With and without external damping p Optionally segment and/or smooth bent-tube (up to DN 150) from in-house production p With and without insulation p Flexible metal element as bellow or stripwound hose 6 7
Exhaust gas after-treatment Other applications Decoupling elements or flexible pipe systems are used within the exhaust gas after-treatment. p Optimised flow technology p Geometric and technical characteristics as well as the connection technology can be adapted to the particular customised mounting situation p Technically gas-tight p Temperature, pressure, corrosion and aging-resistant p Decoupling of thermal expansion and vibration p Compensation for installation tolerances Flexible pipelines and pipe systems are used in an extremely wide range of configurations. They have customised configurations and are designed for special applications. p Resistant to diffusion p Low weight because of using thin-walled tubes p Technically oil and gas-tight p Temperature, pressure and corrosion resistant p Aging resistant Bellows element with customised connections p With and without insulation or heat shield p With and without inner-sleeve p 3-Dimensional design profile according to customer specification Bellows p With and without inner-sleeve p With and without interlock 8 9
Pressure tube casing Piezo injectors Leak-tight protection system for injection tubes and single-walled pipes for flammable liquids (fuel, engine oil, hydraulic oil). Leak detection possibility with connection to monitoring devices. p Even with large nominal diameters, the flexibility permits adaptation to the particular pipeline routing p Existing type approvals permit use in maritime applications Millimetre Metal bellows as highly dynamic seal of piezo elements against fuel p Non fatigue critical design for movement, pressure pulse and vibration: >1,000,000,000 load cycles p Pressure pulse up to 300 bar, static pressure resistance > 700 bar p Corrosion resistant against all current fuels Hose lines for air and fluid systems Pipeline for special media Cooling water pipe, oil duct, compressed air pipe Supply pipe systems for flammable and volatile media p With and without braiding p Combinations of flexible hose segments and rigid pipe sections made from stainless steel or cast elements according to customer specification p Pipe routing optimised with regard to installation space because of segment elbows p 3-Dimensional design according to customer specification p Combination of rigid and flexible elements Exhaust gas collector Exhaust gas collector for complete geometries downstream from multiple turbo chargers and on to the customer connection Flexible hose lines for CO 2 high-pressure air-conditioning systems p In the coolant area, completely pre-insulated or jacketed pipelines for direct mounting p Completely pre-insulated pipeline for direct mounting on the engine p Components required for technical flow reasons such as diffusers are integrated in the pipe system 10 11