DCB-DM SERIES BANDSAWS DURMA

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1 BETTER PARTS BETTER PROFITS

2 STANDARD EQUIPMENT Hydraulic Vice Synchronized Cutting Arm & Clamp System Bilateral 60 Angled Cut Digital Readout of Turn Table Motorized Turn Table Electronic Variable Cutting Speed Adjustment with Inverter Bimetal Bandsaw and Cooling System Blade Tensioning - Hydro Mechanical Bearing and Carbide Tape Blade Housing Cutting Height Adjustment Motorized Roller Feeding Top Clamping - Mechanical Length Adjustment - Electrical Chip Brush Part Counter 47 Roller Table OPTIONAL EQUIPMENT Motorized Chip Brush Chip Conveyor Blade Tensioning - Hydraulic Laser Marking System Top Clamping - Hydraulic NC Control System Micro-spray Cooling System Automatic Cutting Pressure Control Extra 47 Roller Table

3 FEATURES METAL CUTTING WITH BANDSAWS Band saws are a cost effective way of cutting a wide variety of materials in many different shapes. They are especially useful for exotic and hard alloys. Solids or profiles can be cut in bundles or singularly with either manual or automatic feeds. As band saws are fast and inexpensive, they are used commonly in steel plants, craft, aircraft, automotive industries, manufacturing, construction and aluminum sectors. Below are some samples of shapes that are commonly cut on band saws. LOW SOUND LEVELS HYDRAULIC & ELECTRIC SYSTEMS Sounds in production process are caused by the mechanical parts. The sounds due to vibration are minimized when the pulleys and the bearings are in appropriate length and quality. In Durma series bandsaws, the pulleys and the direction arms are produced by vibration- and sound-absorbent casting. Bearings from worldwide best quality brands are used. The desired precision in hydraulic movements and down speed is gained by world reknown Rexroth valves, which are able to respond quickly to the commands, as well as with its pressure compensation. Unwanted speed differences are eliminated during solid material cutting and no harm is done to the saw edges. All electrical control components are selected from Siemens and Schneider. LONGER BLADE LIFE STRESS RELIEVED FRAME While saw blade is tight between the pulleys it tends to twist between the guides vertical to the table. The level of twist increases when the tape is on its maximum angle and minimum distance to the work piece. This causes very thin fractures on the blade which can cause breakage to the blade. Deflection and vibration during the cutting process are minimized by the reinforced frame. The rigid frame is connected to the strong chassis by chrome plated columns. Chassis, body and all other parts are stress relieved after casting and welding. All machining is performed with five axes. CNC working stations, with single pass. In this way, mounting surfaces for all axes are guaranteed to be parallel. The combination of these processes ensures precise and long lasting operation.

4 FEATURES BILATERAL 60 ANGLED CUT With the bilateral band saw body with the motor measuring 60 o angle cutting can be done faster. It is not necessary to manual turn the material to perform miter cuts of 60 degrees or less. RIGOROUS RESEARCH & DEVELOPMENT EFFICIENT POWER & FASTER CUTTING ABILITY All mechanical, hydraulic, and electrical systems of the DCB series Durma band saws are designed by experienced Durma R&D engineers by using parametric 3D technology. All models are subjected to rigorous testing prior to going in to serial production. The saw turns on pulley which is driven by high torque helix gear box and electrical motor. Even in continuous working conditions no heating or torque loss occurs. The torque is transmitted to the saws with any power loss by a drive system guided with strong conical bearings at the same axis as the pulley. Because of the high torque design the cutting speed is much higher than the other machines in the marketplace. The frequency inverter provides protection for the tape and other components against possible overloads at peak pressure.

5 STANDARD FEATURES HYDRAULIC VICE One of the most important factors for cutting quality is to securely clamp the material. Hydraulic vices are used to prevent any movement of the material during the cutting process. SYNCHRONIZED CUTTING ARM & CLAMP SYSTEM The band bearing is assembled with linear rail and ball bearing system and positioned close to the cut material. In this way time saving and better quality cut is provided. BIMETAL BANDSAW & COOLING SYSTEM BEARING & CARBIDE TYPE BLADE HOUSING As a standard one general purpose bi-metal band saw for general is supplied with the machine. Different sizes and blade profiles can be supplied upon request. A water based boron oil is spread with desired flow to the tape bed and cutting area with a strong centrifugal pump. Machine is shipped without oil. When the right saw tape is used, the steepness and tangential of the cutting is mostly depends to tape guiding. Ideal cutting is achieved by carbide metal guides for the tape side surface. Due to their vertically positioned bearings, proper gap and parallelism minimizing tape and material costs and finishing operations eliminated.

6 STANDARD FEATURES BLADE TENSIONING - HYDROMECHANIC An easily accessible blade tensioning device with pressure gauge allows quick and easy setting of the blade tension. In the event of a blade rupture, the system stops. TOP CLAMPING - MECHANICAL Mechanically adjusted top clamping secures bundled material during the cutting process. CUTTING HEIGHT ADJUSTMENT MOTORIZED ROLLER FEEDING Fast and easy cutting height adjustment saves setup time, especially during production or serial cutting. Chain driven rollers provide a simple and fast material feed system for general purpose cutting. PART COUNTER With automatic models it is possible to enter the number of cuts to be achieved during serial cutting. In addition, the display also displays information about the machine, alarm and cutting.

7 STANDARD FEATURES LENGTH ADJUSTMENT - ELECTRICAL ROLLER TABLE Cutting length adjustment of the material in automatic models are done by adjusting limit switch to the desired cut length. Maximum setting is During serial cutting cuttings, a roll driven vise feeds the material to the preset length can the material is cut. After completion of the cut, the piece falls and the process is repeated. At the front or back side of the machine the table provides easy material entrance by bear driven rolls. One table is standard with the related machine. Extra tables can be put together, this way longer materials are supported. MANUAL CHIP BRUSH CUTTING SPEED ADJUSTMENT Removing the chips between the tapes is very important to increase blade life. A manual chip brush cleans most of the chips and prevents the dirt gathering on the body. Proper cutting speeds are very important in achieving optimum cuts. Variations in the cutting speed can affect the cut quality as well as decrease blade life. The cutting speed is easily adjustable on the digital control panel.

8 STANDARD FEATURES DIGITAL READOUT OF TURN TABLE MOTORIZED TURN TABLE A digital readout displays, in 0.1 degrees, the location of the turn table as it is positioned. The saw body is assembled on large scale motorized turn table and mitering up to 60 degrees in both directions is possible.

9 OPTIONAL FEATURES CHIP CONVEYOR BLADE TENSIONING - HYDRAULIC A large amount of chips can be produced, especially when cutting solids. The motorized chip conveyor automatically transfers these chips out of the machine. Provides blade tensioning via the control panel without the need for operator to manually set. When ideal tension is automatically achieved. In the event of blade rupture, the system stops. LASER MARKING It helps length adjustment of the work piece. The laser line reflecting on the front side of the tape allows easy viewing of the length and the cutting line. The blade is positioned higher than the material during feeding process, avoiding any blade damage. This system is a convenient feature in semi-automatic machines and special cutting applications. MICROSPRAY COOLING AUTOMATIC CUTTING PRESSURE CONTROL Automatic setting of the cutting presure assures optimum cutting. If the speed is too slow or too fast it affects the cut quality and shortens blade. Automatic cutting pressure control also prevents overload to the machine. A special mixture of micronized cutting oil and air is sprayed on the blade to prevent overheating and to increase blade life. In addition to the ecological advantage it also minimizes the boron oil costs. MOTORIZED CHIP BRUSH A motorized chip brush is available in lieu of the standard.

10 OPTIONAL FEATURES NC CONTROL SYSTEM EXTRA ROLLER TABLE - 47 Programming of the cut length as well as the number of pieces to be cut. Certain machine parameters can also be set through the control. An encoder is integrated in to the clamp rollers to provide the precise positioning to the programmed length. At the front or back side of the machine the table provides easy material entrance by bear driven rolls. One table is standard with the related machine. Extra tables can be put together, this way longer materials are supported. TOP CLAMPING - HYDRAULIC Hydraulic top clamping

11 SPECIFICATIONS DCB-DM 560 rear view DCB-DM 560 Capacities Motor Main Motor Hydraulic Pump Motor Material Feed Motor Cooling Motor in Ø23 in 22 in 22 x 41 in Ø23 in 22 in 22 x 35 in Ø23 in 22 in 22 x 28 in Ø19 in 19 in 19 x 22 hp 10 hp 4 hp - hp 0.5 Length x Width x Height Cutting Speed Working Height Weight in 161 x 82 x 103 ipm 794 ~ 3970 in 31 lbs 11685

12 AIMS FOR CONTINUOUS DEVELOPMENT s large investment in machining centers and production equipment, as well as its ISO-certified factories totaling 1,350,000 square feet and 1,000 employees, make one of the world s largest, efficient and most contemporary facilities in the world. In order to offer customer solutions and further develop patents, the Durma Research and Development center opened in Fifty engineers were added over the last two years. Designed and engineered with modern technology, Durma products are equipped with high quality and proven readily available components. Established in 1956, Durma has vast experience in building and supplying quality products. With over 60,000 machines delivered worldwide, Durma has earned a reputation as a supplier of innovative value oriented solutions. Your partner today, tomorrow, and forever.