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China, Chinese Rolla-V Bending Press Brake Dies1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
MouldRolla V DieRolla-V Bending Press Brake Dies
Shanghai Lejia CNC Machine Co., Ltd.
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Product Description Product Description1).Available Press Brake Machines BrandAmada, Atlantic, Adira, Baykal, Beyler, Darley, EHT, Ermaksann, Durmazlar, Bystronic, Gasparini, Guifil, Haco,Imal, LVD Ivan, LVD, Mecos, Megobal, Promecam,trumpfwila,Salvagnini, Safan, Weinbrenner,Yawei, Yangli,JFY,ACL,YSD,ZYMT,ADH,etc...2).LEJIA Tooling AdvantagesTaking into consideration our clients wishes, every day we work to satisfy our clients' needs, to increase our product list and tools quality. √ LEJIA produce bending tools from high speed steel high quality steel(42CrMo=SCM440=42CrMo4=4140), working surfaces are preciously grounded, standard will be whole body Total Hardening, the hardness can reach HRC47;√ We can do surface hardening on bending tools by Laser, the the hardness can reach HRC60.√ LEJIA have we have more than 20 years experience in bending tooling manufacturing.√ LEJIA bending tooling factory has more than 300 people in total, there are approx. 310 sets processing equipments for bending tools. Most processing equipments are CNC and from Chinese top manufacturers, we also have some processing equipments from Japan and Europen;√ LEJIA bending tool accuracy: Center Accuracy:±0.02mm, Parallel Accuracy:±0.02mm, Vertical Accuracy:±0.02mm√ Every special bending tooling will be tested by our press brake machines and have the testing samples before sending to our clients.Vertical Accuracy:±0.02mm3). TYPES OF PRESS BRAKE TOOLSTools for press brake are considered "safety first", and dies with fall prevention grooves are now standard.Typical punch clamp typesSAFETY BUTTON Bending edge shapesSTANDARD PUNCH,GOOSENECK PUNCH,STRAIGHT PUNCH,SASH PUNCH,HEMMING PUNCH,THICK PLATE PUNCH Typical die types and mounting methods1V Die4). TOOL LENGTH:550mm, 1050mm,1250mm,2050mm,2550mm,3050mm,4050mm 5). HOW TO READ THE TONNAGE CHARTCheck the tonnage chart before Bending.The tonnage chart is always specified in the tool catalog, and is also displayed on the machine as a nameplate where it is easy to see. Basically, you can read the conditions other than pressure in the chart below.Knowing this tonnage chart deeply or shallowly will make a big difference in worker safety and product finish.It greatly affects machine specifications, tool selection, product accuracy and quality, so let's grasp the contents and use them for safe work. First of all, read the following contents from the chart below.1: Minimum flange length (b) 2: V-width (V-opening) of tool used for bending (V) 3: Required tonnage to bend 1m long material (F)[ Right figure, symbol of tonnage chart ] V=V-width (V-opening)b=Minimum flange lengthir=Inner bend radius t=Material thickness(Tensile strength 40~50kg/mm)*Tensile strength for Stainless steel (Inox) 60~75kg/mm, Aluminum 25~45kg/mmF=Pressure par meter (kN/m)The values in the tonnage chart are based on "bottoming" and "SS material", so the tensile strength etc. must be taken into account depending on the processing conditions.The values in the tonnage chart are based on "bottoming" and "SS material", so the tensile strength etc. must be taken into account depending on the processing conditions.6). MINIMUM FLANGE LENGTHTo complete the bending, the material must be on both shoulders of the die to the end.The minimum flange length is expressed by the following formula based on 90° bending.b=( V/2 ) x √2≒0.7V 7). V width selection and basic setting of ir (inner R)V-WIDTHBending MethodV-WidthFeaturesBottomingMaterial thicknessecause of the bending process that is used most often, the patterns for V-grooves are also finely divided.0.5 - 2.63.0 - 8.09.0 - 106×t8×t10×tPartial Bending12 - 15×tSince an arbitrary angle bending is taken into consideration, the V-width is set so that bending accuracy is easily stabilized.Approximately twice as much as bottoming.Coining5 - 6×tThe purpose is to reduce inner radius and reduce the amount of bite at the tip of the punch.iR (inner radius)Bending MethodiR (inner radius)FeaturesBottoming≒V/6Base values for maintaining safe and stable accuracy, such as punch tip radius and spring-back amount.Partial BendingWhen high accuracy is required, use a bottoming type tool.CoiningCare must be taken when using a bottoming die because iR increases and extra pressurization is required. Processing and Manufacturing Packaging & Shipping Related Products LEJIA ClientsLEJIA have exported the products to Many countries in the world (Germany, Sweden, Hungary, Italy, Netherlands, Spain, Portugal, Czech Republic, Lithuania, Serbia, Greece, Malta, Austria, Kosovo, Turkey, Ukraine, Albania, Estonia, Belarus, Bulgaria, Bosnia, Croatia, Romania,USA, Japan,Brazil, Argentina, Mexico, Bolivia, Colombia, Canada, Peru, Chile, Australia, New Zealand, Rwanda, Egypt, South Africa, Tanzania, Nigeria, Botswana, Mauritius, Russia, Vietnam, India, Iran, Singapore, Uzbekistan, Thailand, Sri Lanka, Bangladesh, Malaysia, Kazakhstan, Philippines, Bahrain, Pakistan, United Arab Emirates, Kuwait, Saudi Arabia, Sudan, Jordan, Oman, Qatar, Israel, Yemen,Mongolia,Burma..)
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