DIGIPREP 251 ADVANCED DIGIPREP preparation systems are designed for fully automated materialographic sample preparation for consistent and reproducible specimen quality. DIGIPREP s variable speed base unit is available in two version; DIGIPREP 251 with 250 mm diameter wheel and DIGIPREP 301 with 300 mm diameter wheel. The base unit is powered by a high torque 1.0 HP electric motor. The state of the art frequency converter allows smooth speed variation (50-600 RPM) with soft start and soft stop. The stylish and functional GRP housing is corrosion free and easy to clean. Molded wheel bowls and drains eliminate leaks and the build-up of residue is prevented by constant flushing of the bowl. The drive elements are fixed on heavy duty aluminium alloy casting. The wheels are mounted on ball bearings allowing the application of high pressures to prepare even large specimens. Ball bearings used provide quite and vibration free operation. When required, the base unit can be operated in manual mode, as well. DIGIPREP s programmable Automatic Head is HMI touch screen controlled and with the Base Unit, thus creating automatic preparation system. It is used to prepare high volumes of metallographic, ceramic and mineralogical specimens with consistent reproducible quality. The Automatic Head can apply both Central and /or Individual forces. It can accommodate single samples as well as multi - sample holders thus offering a perfect solution for all levels of sample throughput requirements. The Automatic Head is mounted to a hardened steel post which is affixed to the cast base of the grinder / polisher. The force on the specimen, individual or central is pneumatically controlled by a pressure transducer. The system is enclosed in a GRP housing with touch screen LCD. The Automatic Head is rapidly positioned via a quick-locking clamping lever. The soft start and stop feature automatically starts the sequence with a low initial force which is then increased to the preset. Towards the end of the cycle the force is automatically reduced to 75 % of the setting to prevent scratching. A variety of sample holders for individual or central force applications are available for different sample sizes. All preparation parameters can be stored in memory under a specific program number. Each program can be saved for a material specific name such as Cast Iron, Bronze, Al-Si Alloy, etc. The parameters which can be saved are; Force, Cycle time, Wheel speed and direction, Mode of operation (individual or central pressure). Dispensing frequency can also be saved when DOSIMAT peristaltic dispenser is available. These parameters are entered and stored in memory and displayed on the LCD screen as preset values. All the operator needs to do is to select the mode of operation (individual or central pressure), call up a specific program and press the Start key. Upon completion of the cycle, an acoustic signal lets the operator know that the cycle is over and the samples are ready for the next step. When required, it is also possible to intervene in the program and change the parameters without stopping the instrument. Enviro Filter Unit is a closed loop re-circulating filter system which is optionally available. It has a 20 L. reservoir capacity with 1 micron filter entering the grinder/polisher intake. Enviro can also be coupled with line water and 80 micron filtering system for disposal. DOSIMAT Peristaltic Dispenser is an optional accessory for the DIGIPREP systems. It is an automatic fluid dispensing instrument used in combination to obtain consistent specimens and to save time and consumables. DOSIMAT can feed both diamond suspensions, lubricants and aluminum oxide suspensions. Dispensing parameters like; frequency, fluid selection etc. are controlled through the programme memory of the Automatic Head. High quality peristaltic pumps guarantee exactly the same dosing every time. DOSIMAT has 3 peristaltic pumps for diamond suspensions / lubricant and 1 pump for aluminium oxide suspension. The liquid is dosed exactly to where the operator wants it on the polishing cloth. No vaporization or spray mist occurs. Programmable with 5.7" HMI touch screen control, Base Unit with large 0,75HP Motor, Variable wheel speed 50-600 RPM, Quite belt drive, Complementary or Contra rotational direction, Soft Start and Stop, With 250 mm diam. working kit consisting of "Aluminium Wheel and Splash Guard", Retractable water hose, with water supply and drain tubes. Automatic Head, Large LCD screen, programmable sample preparation parameters, central and/or individual force application, steel mounting column, with variable specimen
holder speed 50-150 RPM, 100 Watt DC motor, LED lighting, quick-locking swing mounted design, audible warning signal, with holding chuck, Integrated Dosimat Fluid Dispenser with 4 micro peristaltic pumps allowing significant savings and perfect reproducibility, (3 for dimond suspensions/lubricant and 1 foralumina suspensions), Air supply tubes, Complete and ready for operation. Without Specimen Holders. 110/230 V (Please specify Voltage at the time of order), 1-phase, 50 Hz. Application of Force Individual + Central Individual Force, (N) 5-100 Central Force, (N) 30-500 Head Motor Power 100 W Base Motor Power 0.75 W Head Speed, (rpm) 50-150 Base Speed, (rpm) 50-600 Wheel Diameter, (mm) 250 Head Rotation Direction Wheel Rotation Direction / C HMI Touch Screen, (inch) 5.7" Program Memory 25 Grinding Depth Measurement (Z-axis) Grinding Depth Measurement Accuracy (µ) 10 µ Mains 480x730x640 1 Phase, 110/230 V 50Hz, AC DIGIPREP 301 Programmable with 5.7" HMI touch screen control, Base Unit with large 1.0HP Motor, Variable wheel speed 50-600 RPM, Quite belt drive, Complementary or Contra rotational direction, Soft Start and Stop, With 300 mm diam. working kit consisting of "Aluminium Wheel and Splash Guard" Retractable water hose, with water supply and drain tubes. Automatic Head, Large LCD screen, programmable sample preparation parameters, central and/or individual force application, steel mounting column, with variable specimen holder speed 50-150 RPM, 100 Watt DC motor, LED lighting, quick-locking swing mounted design, audible warning signal, with holding chuck, Dosimat Fluid Dispenser, with 4 micro peristalstic pumps allowing significant savings and perfect reproducibility (3 for dimond suspensions/lubricant and 1 for alumina suspensions), Air supply tubes, Complete and ready for operation. Without Specimen Holders.110/230 V, 1-phase, 50 Hz. Application of Force Individual+Central Individual Force (N) 5-100 Central Force (N) 30-500 Head Motor Power 100 W Base Motor Power, kw 1 Head Speed, (rpm) 50-150 Base Speed, (rpm) 50-600 Wheel Diameter, (mm) 300 Head Rotation Direction Wheel Rotation Direction / C HMI Touch Screen, (inch) 5.7" Program Memory 25 Grinding Depth Measurement (Z axis) yes Grinding Depth Measurement Accurracy (µ) 10 µ 520x770x640 Weight, (kgs) 86 Mains 1 Phase, 110/230 V 50Hz, AC
DIGIPREP PLAN DIGIPREP PLAN Planar Coarse Grinder is designed for first step initial planar grinding of very large specimens or a high volume of specimens in specimen holders. It is fast and efficient in providing high quality flat specimen surface thus saving time on the subsequent fine grinding and polishing steps. Specimen holders of 145 mm diameter having 6 specimens can be prepared in less than a minute with up to 7 (175 mm) stone cup which requires minimal dressing. DIGIPREP PLAN is an automatic planar grinder for the first step plane grinding of metallographic specimens. It can easily provide enough specimens for two or three Digiprep polishing machines. Heavy duty cast aluminium base with mechanical vertical drive provides accurate control. High-torque grinding motor rotating at 2800 RPM guarantees high material removal rate. By using different cup grinding stones ferrous as well as non-ferrous specimens can be prepared easily. DIGIPREP PLAN is equipped with automatic sample feed with fine speed control. Fast advance and reverse are available. All important parameters of the grinding process like feed rate and grinding depth are preset with digital display. Different jaw chucks to secure the specimen holder, T-slotted table and other clamping devices are offered as optional accessories. A re-circulating cooling unit is strongly recommended so that a rust inhibitor can be added and the grinding swarf can be collected. The entire working area is totally enclosed. Electronic brake is integrated to the system for a rapid stop of the grinding stone. The interlocking safety device does not allow the hood to be opened before the grinding motor is stopped. Figure 4 - DIGIPREP Plan Planar Coarse Grinder DIGIPREP PLAN has advanced techniques and software with programmable HMI touch screen controls increasing the productivity, sample consistency and operator comfort. Controlled Material Removal DIGIPREP PLAN allows you to preset the amount of material to be removed very accurately. The vertical movement of the grinding head is motorized with digital positioning and display on the touch screen LCD. The robust design of the column guarantees high reproducibility. The material to be removed from the specimen can be preset in increments of 10 micron. Grinding Parameters: The pre-selection of the grinding feed rate is possible from the touch screen LCD. The feed rate is automatically adjusted, if needed reduced, resulting in perfect surfaces and eliminating sample and machine damage.
Multi-pass Grinding: DIGIPREP PLAN can be programmed to make multi-pass plane parallel grinding operations. It is possible to set the number of passes and the grinding depth of each pass which can be stored under a program number or name. Programmable Return Positions: DIGIPREP PLAN has 3 different stop modes Auto stop: Stops when the specimen holder has been through. Relative Stop: Stops when it has returned to its starting point. Absolute Stop: Stops when the ultimate reset point in all axes has been reached. Database A library of 25 different grinding programs with related specimen name or number can be saved with all grinding parameters which can be recalled at anytime. Data with Qualitest grinding cups is also listed for easy selection DIGIPREP 7 Grinding & Polishing Station: DIGIPREP PLAN can be combined with DIGIPREP 251/301 on a single cabinet to form the DIGIPREP 7 Grinding & Polishing Station. A typical 3 or 4 stage complete grinding & polishing process of a 6-sample specimen holder can be performed in 7 minutes on a DIGIPREP 7 Station. Figure 6 - DIGIPREP Plan Planar Coarse Grinder Planar Coarse Grinding Machine, with Siemens PLC control unit, for initial planar grinding of metallographic specimens in specimen holders, bench top compact design, Programmable with 5.7" HMI touch screen control, closed housing, maximum safety provided with interlocking switch, large working space with LED lighting, automatic sample feeding with adjustable fine speed, and controlled material removal with digital setting of grinding depth with accuracy of 0.01 mm., high torque 2.2 KW grinding motor, with 2800 RPM speed to obtain optimum surfaces on different materials, all parameters on LCD display, ready for operation, without clamping devices. 400V, 3-phase, 50Hz. Includes 1 pc. 150 mm. Dia. AL2O3 Cup Grinding Stone for ferrous materials as standard consumable set. Grinding motor power, (kw) (S1) 2.2 Grinding motor power, (kw) (S3) 3 Grinding wheel Speed, (rpm) 2800 Cup wheel Diameter, (mm) 50-600 Table Feed rate, (mm/s) 250 / 300 HMI Touch Screen, (inch) Program Memory 25 mm x 40 mm Grinding Depth Accuracy (µ) Y-Axis Stroke, (mm) 5,7" Z-Axis Stroke, (mm) 25 Grinding Depth Measurement Accuracy (µ) 10 µ Automatic Drip Lubritacing 480x730x640 (with cabinet) 180 Weight, (kgs) 185
DIGIPREP Accura DIGIPREP Accura can accommodate 250 mm diameter wheel as well as 300 mm diameter wheels. The robust construction on dual columns ensures extreme flat surfaces. The working wheel is powered by a high torque 1.5 HP electric motor. The state of the art frequency converter allows smooth speed variation (50-600 rpm) of the grinding wheel with soft start and soft stop. The specimen holder is equipped with variable speed 50-150 rpm as well. The stylish and functional GRP housing is corrosion free and easy to clean. Molded wheel bowls and drains eliminate leaks and the build-up of residue is prevented fixed on heavy duty aluminum alloy casting. The wheels are mounted on ball hearings allowing the application of bearings used provide quiet and vibration free operation. When required, the base unit can be operated in manual modem as well. DIGIPREP Accura has advanced techniques and software with programmable colored HMI touch screen controls increasing the productivity, sample consistency and operator comfort. It is used to prepare high volumes of metallographic, ceramic and mineralogical specimens with consistent reproducible quality. Both Central and/ or Individual forces can be applied and single samples as well as multi-samples can be accommodated. Thus, offering perfect solutions for all levels of sample throughput requirements. The specimen mover head has motorized positioning in horizontal and vertical directions with memory function. The force on the specimen, individual or central is pneumatically controlled by a pressure transducer. A built-in encoder allows you to measure the amount of material removed from the surface. The desired grinding depth can be set to grind different type of samples and also for applications that need special accuracy. The soft start and stop feature automatically starts sequence with a low initial force which is then increased to the preset. Towards the end of the cycle the force is automatically reduced to 75% of the setting to prevent scratching. A variety of sample Holders for individual or central force applications are available for different sample sizes. The whole system is enclosed in a GRP housing. All preparation parameter can be stored in memory under a specific number or name such as CAST Iron Bronze, A-Si Alloy, etc. The parameters which can be saved are; Force, Cycle time, Wheel speed and direction, Mode of operation (individual or central pressure). Dispensing frequency can also be saved. Theses parameters are entered and stored in memory and displayed on the LCD screen as present values. All the operator needs to do is to select the mode of operation (individual or central pressure), call up a specific program the START key. Upon completion of cycle, an acoustic signal lets the operator know that the cycle is over and the samples are ready for the next step. When required, it is also possible to intervene in the program and change the parameters without stopping the instrument. Peristaltic Fluid Dispenser Build in Peristaltic Dispenser is located just behind the automatic head which allows you to save space. The built-in automatic fluid dispenser used in combination to obtain consistent specimens and to save time and consumables. Both diamond suspensions / lubricants and aluminum oxide suspensions can be fed. Dispensing parameters like; frequency, fluid selection etc. are controlled through the program memory of the Digiprep Accura. High quality peristaltic pumps guarantee exactly the same dosing every time. Dosimat has 3 peristaltic pumps for diamond suspensions/ lubricant and 1 pump for aluminum oxide suspension. The liquid is closed exactly to where the operator wants it or the polishing cloth. NO vaporization or spray mist occurs. Enviro Recirculation Filtering System: Enviro Filter unit is closed loop re circulating filter which is optionally available. It has a 20 L. reservoir capacity with 1 micron filter entering the grinder/ polisher in-take. Enviro can also be coupled with line water and 80 filtering system for disposal. Special Plexyglass Protection Unit: Optional special Plexyglass Protection Unit encloses the complete preparation area for improved safety. The operator cannot contact to the rotating parts during operation. The Digiprep Accura will not get started unless the protection unit is closed. Also the Digiprep Accura will immediately stop as soon as the protection unit is opened.
Application Force Individual+Central Individual Force (N) 5-100 Central Force (N) 30-500 Head Motor Power 100 W Motor Power, HP 1.5 Peristaltic Dispenser Wheel Diameter, (mm) 250 / 300 Horizontal Positioning Horizontal Positioning, mm 50 Head Rotation Direction Wheel Rotation Direction /C HMI Touch Screen, (inch) 5.7" Program Memory 35 Grinding Depth Measurement(Z-Axis) Grinding Depth Measurement Accurracy (µ 10 µ 660X750X700 Weight, (kgs) 95 LEVOMAT: Specimen Loading Fixture, to level the specimens within the central force specimen holders, without specimen loading plate.