AKG A World Class Supplier. Your innovative partner to design and supply engineered cooling packages

Transcription

1 LOCATION TELEPHONE FAX AKG Fellow Subsidiaries (Germany) Hofgeismar Autokühler GmbH & Co. KG Hofgeismar AKG Thermotechnik International GmbH & Co. KG Hofgeismar AKG Thermotechnik GmbH & Co. KG Appenweier Autokühler GmbH & Co. KG Dortmund AKG Thermotechnik GmbH & Co. KG Uslar AKG Thermotechnik GmbH & Co. KG AKG Fellow Subsidiaries (International) China AKG Thermal Systems (Taicang) +86 (-52) (-52) Co., Ltd. France AKG France S.A.S Great Britain AKG UK Limited Singapore AKG Trading Turkey AKG-SRF A. S USA AKG of America, Inc USA AKG Thermal Systems, Inc AKG Authorized Dealers (Germany) Dortmund Brenscheidt Autokühler GmbH Freiberg a. N. SLB GmbH Industriekühler Mönchengladbach Michael Widler Filtration und Kühlung Mühlhausen Kämmer Antriebs- und Steuerungs technik München Kühlerbau Schneider GmbH & Co Betriebs KG Neubrandenburg Lippold Hydraulik & Wälzlager GmbH Oberweser-Gottstreu Hega Antriebstechnik Rielasingen Salzmann AKG Sales Representatives and Authorized Dealers (Europe) Austria mfk-tech Bulgaria IOW Bulgaria Ltd Czech Republic IOW Bohemia Finland Nestepaine France Domange Hydrauliques Italy Elle.Bi Poland IOW Trade Slovenia Agis-Klima d. o. o Spain NovaHydra Sweden AB Pegol Switzerland Autokühler AG, Switzerland Ukraine Gespaso AKG Sales Representatives (World) Australia Fluid Dynamics Brazil Apema India Alkraft Malaysia Alra Radiator South Africa Entramarc (PTY) LTD South Korea Global AKG A World Class Supplier The AKG group is one of the biggest suppliers of aluminium heat exchangers for industrial use world-wide. Coolers and cooling systems for various applications are manufactured in Germany and at many international production sites. Hydraulic Coolers Made by AKG DIN EN ISO 9 : 2 AKG Thermotechnik International GmbH & Co. KG Postfach 346 D Hofgeismar telephone (49) 56 7 / fax (49) 56 7 / Internet: Info@akg-group.com AKG - edition 25--E (changes and errors excepted) Your innovative partner to design and supply engineered cooling packages

2 Features High efficiency cooling systems made from Aluminium High performance and working pressure - even for heavy duty hydraulic and lubrication applications Maximum working pressure T -T8 26 bar T9 -T bar Oil/Air- Cooling Systems AKG-Range T - T Offering high flexibility for usage with transmission, engine, hydraulic and lubrication oils May be also used as off-line coolers Cooling systems can be fitted with 2V/24V DC, 3 phase or hydraulic motors Benefits General Our T range is designed to help you find an individual solution for your cooling application. Short lead times Cost effective Cooling systems fully equipped for immediate use Spares from stock Robust design, tried and tested for many years Maintenance free Low noise levels Applications (T) Our cooling systems offer a wide variety of products which have been fully tried and tested even under the most arduous working conditions. The units can be used for cooling: mineral oil, synthetic oil, bio oil, HFA B C D liquids, water/glycol mixture, containing 5% antifreeze and corrosion inhibitors A range of basic types covers almost all cooling applications involving a large variety of fluids in stationary and mobile machines. Function: Heat will be transferred from the fluid to the cooling air flow AKG and its representatives as experts in the field of cooling systems will be delighted Options to assist you. Temperature regulator Please note: As part of our ongoing technical improvements, AKG maintains the right to introduce General Terms of Sales and Off-line cooler packages with integral pump Set up and operating instructions modifications to the specifications in this 6 Hz electric motors Delivery brochure. Pusher fans (standard equipment is puller fans) Spares list Your partner for hydraulic coolers

3 Technical Data T - T8 G /4 BSP C N max O Detail x T9 - T G B S F Detail x ø73 Cooler Type Order Number Fan Diameter [mm] Fan Speed [rpm] Noise Level [db(a),m] T , ,7 Motor Voltage [V] Power Consumption [kw] Volume [l] Working Pressure [bar] Total Weight excluding fluid [kg] /2 BSP H B D M A E F L M4x I K 4x ø4 P detachable support feet M SPECIFICATION Cooler Type T T2 T3 T5 (T5K) 2) T6 T7 T8 T9 T T Heat rejection ) DIMENSIONS A B C (63) D E F G H I K L M N max (4) ca. 45 ca. 45 ca. 59 ca. 65 ca. 79 ca. 9 O BSP BSP BSP /4 BSP /4 BSP ( BSP) /4 BSP /4 BSP /2 BSP P Q R 9 94 S T 5 2 all dimensions in [mm] ORDER CODE SYSTEM H D A R C Q L I K N I E T SAE 3 T / Hydraulic L / T / Hydraulic L / / Hydraulic L / T / Hydraulic L / K / T / Hydraulic L / T / Hydraulic L / T / Hydraulic L / S / T / Hydraulic 25 9 L / T / Hydraulic 3 2 L / Cooler type: e.g. 4 = Direction of cooling air flow: pulling = 2 (standard) = 2 V DC 2 = 24 V DC 3 = 3 phase electric motor 4 = hydraulic motor 23 = low noise version with 3 phase electric motor T / ca. 29 L / ca. 29 Materials 3 phase electric motor: T2 - T9 B4, small flange T - T B5 displacement [cm 3 ] hydraulic motor: T2 - T8 ccm T9 - T 2 ccm pushing = (available for 3 phase and hydraulic motors) Cooler: Aluminium Fan blade: Plastic ) For details use diagrams and tables as appropriate Fan cowl, finger guard, support feet, motor support flange: 4 2) use T5K for low oil flows Zinc plated, painted / Powder coated steel 5 All systems are pressure tested according to DIN 54 Applications: Trucks Busses, Commercial Trucks, Fork-Lift Trucks, Special Vehicl es, Tractors, Concrete Mixer Trucks, Construction Machinery Asphalt Compactors,

4 Easy sizing of T-coolers Easy sizing of T-coolers The following tables may be used to quickly select a T-cooler. The data is based on the assumption that oil inlet temperature does not exceed 7 C for hydraulic and C for lubrication applications. For a more detailed and customised cooler selection exact temperatures and flows are necessary. Please select your cooler according to the example on page or seek advice from AKG or its representatives. Please use the following heat rejection figures if no details are available: - Agricultural and construction machinery: /3 of Diesel engine power - Hydraulic pumps driven by an electric motor: /3 of electric motor power Hydraulic applications Hydraulic applications Lubrication oil applications Lubrication oil applications Heat rejection 3 C ambient temperature] Oil flow T T2 T3 T5K T5 T6 T7 T8 T8S T9 T T Heat rejection 3 C ambient temperature] Oil flow T T2 T3 T5K T5 T6 T7 T8 T8S T 9 T T Heat rejection 4 C ambient temperature] Oil flow T T2 T3 T5K T5 T6 T7 T8 T8S T9 T T Heat rejection 4 C ambient temperature] Oil flow T T2 T3 T5K T5 T6 T7 T8 T8S T 9 T T Building Machines, Compressors, Cranes, Crawlers, Drills, Excavators, Graders, Loaders, Pipe Layers, Scrapers, Screw Compressors, Vibration Rollers, Machines,

5 Specific heat rejection T - T8 Specific heat rejection T9 - T PK/ETD (kw/k) PK/ETD (kw/k) 2 T8 S 8,8 7 T,6,4,2 T8 6 5 T L T,8,6,4,2 T T2 T2L T5 K T3 T5L L T3L T6 T5 T6L T7 T8L T7L T L T9 T9 L Pressure drop T - T8 Pressure drop T9 - T 3 cst viscosity 3cSt viscosity,8,6,4,2,8,6 T2 T5 K T3 T7 T6 T5 T8 4 3,5 3 2,5 2,5 T9 T T,4,2 T, To calculate pressure drop data at other viscosities please look at example on page. To calculate pressure drop data at other viscosities please look at example on page. 8 9 Tools, Casting Machines, Elevators, Extrusion Machines, Forging Manipulators, Fo rging Presses, Gears, Hydraulic Systems, Pipe Bending Machines, Presses, Pumps,

6 Selecting a cooling system Conversion factors for different oil pressure drops To select a cooler for your application, the following data is required: The pressure drop curves on pages 8 and 9 are based on a viscosity of 3 mm 2 /s = 3 cst. Please use conversion factor f to calculate pressure drop at other viscosities. Heat rejection: Alternative terminology is dissipation Oil flow: Circulating oil flow determines the cooler size Oil inlet temperature: Temperature of the oil entering the cooler Cooling air flow temperature: Air temperature at cooler face before entering matrix mm 2, cst s f Determination of input data Preq [kw] VOil [l/min] TOil [ C] Tcaf [ C] Heat rejection Oil flow Oil inlet temperature Cooling air flow temperature 2. Specific heat rejection Example Preq = 2 kw VOil = 5 l/min TOil = 7 C Tcaf = 3 C Example: Pressure drop of type T7 is.3 5 l/min and 3 mm 2 /s. Assume an oil type ISO VG 46 is 6 C having a viscosity of 2 mm 2 /s. To calculate new pressure drop multiply.3 bar by f =.75 to obtain the actual pressure drop bar approximately. Notes: ETD [K] = TOil - Tcaf Entering Temperature Difference Prshr [kw/k] = Preq / ETD required specific heat rejection ETD [K] = TOil - Tcaf => 7 C - 3 C = 4 C (= 4 K) Prshr = Preq/ETD => 2 kw / 4 K =.3 kw/k 3. Select according to diagram Pshr ETD.32 Pshr/ETD [kw/k] actual specific heat rejection P = (Pshr/ETD) x ETD actual heat rejection Oil flow [l/min] Pshr /ETD =.32 kw/k (>= Prshr =.3 kw/k)=> P =.32 kw/k x 4 K = 2.8 kw 4. Pressure drop / Oil temperature difference Obtain pressure 3 cst oil viscosity from diagram on page 8. To calculate for other oil viscosities please use example on page. TOil [ C] = 33 x P[kW] / VOil[l/min] p [bar].3 5 Oil flow [l/min] 5 TOil = 33 x (2.8 kw / 5 l/min) = 8.4 C 5. Results selected cooler : heat rejection 2.8 kw, oil temperature difference 8.4 C, pressure drop.3 bar Rolling Plants, Slab Shears, Scrap Shears, Transport Equipment, Vacuum Pumps, Ag riculture Chaffcutters, Combines, Forestry Machines, Harvest Machines, Tractors