Related Manuals for Retsch DM400
Summary of Contents for Retsch DM400
- Page 1 Operating Manual DM400 Disc Mill Translation © Retsch GmbH, 42781 Haan, Retsch-Allee 1-5, Germany 16.12.2021 0001...
- Page 2 Copyright © Copyright by Retsch GmbH Retsch-Allee 1-5 D-42781 Haan Federal Republic of Germany...
-
Page 4: Table Of Contents
Table of contents Basic structure ..........................7 Safety and usage instructions ....................... 10 Requirements for the user ........................10 Intended use ............................11 2.2.1 Operating principle ........................... 11 Duties of the operating company ......................12 Hazard warnings and symbols used ...................... 13 Device safety instructions ........................ - Page 5 Table of contents 5.11 Final refinements ........................... 40 Cleaning ............................41 Extracting dust after grinding ........................ 41 Grinding chamber ..........................41 Housing ..............................42 Cleaning the hopper ..........................42 Servicing ............................43 Grinding discs ............................44 ....................44 Replacing the grinding discs Replacing the gear oil ..........................
- Page 6 Table of contents...
-
Page 7: Basic Structure
Basic structure 1 Basic structure... - Page 8 Basic structure Display Control panel Main switch Fill hopper Fixed grinding disc Moving grinding disc Gap set screw Closing mechanism of the grinding chamber Locking bolts sample material container Sample material container Suction flange lid Height adjustable support Interlock switch Housing cover...
- Page 9 Basic structure + button (change parameters and gap width, menu navigation) - button (change parameters and gap width, menu navigation) Arrow up button (menu navigation) Arrow down button (menu navigation) Start button Stop button Button dust extraction (on/off) Unlocking and locking the grinding chamber Sensor of the grinding chamber...
-
Page 10: Safety And Usage Instructions
The Operat- ing Manual must always be kept where the DM400 is used. Persons with health disorders or who are under the influence of medication, drugs, alcohol or extreme tiredness must not operate the device. -
Page 11: Intended Use
Safety and usage instructions Intended use The DM400 is a disc mill for batch or continuous fine grinding of hard brittle to medium hard solids from the areas of mining and metallurgy, geology and mineralogy and the glass and ceramics industry. -
Page 12: Duties Of The Operating Company
Operating Manual always remains with the de- vice. The DM400 may be used exclusively within the possible uses set out in this Manual and within the specified regulations in this Manual. In the event of contravention or incorrect use, the cus- tomer assumes full liability for the functionality of the DM400 or for damage arising from an infringement of this duty. -
Page 13: Hazard Warnings And Symbols Used
Safety and usage instructions Hazard warnings and symbols used Safety instructions are indicated in this Manual by symbols. The Safety instructions safety instructions are introduced by signal words which express the degree of danger. DANGER! This combination of symbol and signal word indicates a direct hazardous situation leading to death or serious injuries if it is not avoided. - Page 14 Safety and usage instructions The following symbols are used in safety instructions to alert to Special safety instructions specific hazards: DANGER! This combination of symbol and signal word indicates a direct hazardous situation through electric current. If a sign with this symbol is not heeded, serious or fatal injuries will result.
- Page 15 Safety and usage instructions WARNING! This combination of symbol and signal word indicates a direct hazardous situation due to hot surfaces. If a sign with this symbol is not heeded, skin contact with hot surfaces may cause serious burns to skin. Safety instructions may refer to a specific, individual operating Safety instructions in instruction.
-
Page 16: Device Safety Instructions
Safety and usage instructions The following labels are used to emphasise operating instructions, Other labelling results, lists, references and other elements in this Manual: Labelling Explanation 1., 2., 3..Step-by-step operating instructions Results of operating steps Lists without specified order [Button] Control elements (e.g. - Page 17 Unauthorised modifications to the device lead to loss of the conformity to European directives declared by Retsch and to loss of the warranty claim. Only use the DM400 in a technically perfect state and as intended, with an awareness of safety and dangers as specified...
-
Page 18: Safety Equipment
Operating Manual. In particular have faults which might impair safety rectified immediately! Only use the DM400 in a technically perfect state and as intended, with an awareness of safety and dangers as specified in the Operating Manual. In particular have faults which might impair safety rectified immediately. -
Page 19: Danger Areas
Safety and usage instructions A second safety device checks whether the grinding chamber has been closed by means of the motorised closing mecha- nism (8). The interlock switch (13) pulls in the sample material contain- er after the start of grinding and locks it using the locking bolt (9) on the container. -
Page 20: Electrical Safety
Safety and usage instructions Electrical safety 2.8.1 General information The disc mill is switched on/off by means of a main switch (3). By pressing the switch to I (On): Disc mill is activated and can be started using the start button (e) as long as the grinding chamber is closed and the sample material container is inserted! By pressing the switch to O (off) during grinding:... -
Page 21: Protection Against Restarting
Safety and usage instructions 2.8.2 Protection against restarting The device switches off in the event of a power failure during op- eration. The mill comes to a halt within seconds! Sample material container can only be opened with the emer- ... -
Page 23: Technical Data
Technical data 3 Technical data Dimensions 52 x 105 x 63 cm (width x depth x height) Weight 228 kg (net) without grinding discs) 246 kg with tungsten carbide grinding discs Operating noise Workplace related emissions value in accordance with DIN EN ISO 3746:2005 LPA . -
Page 24: Material
Technical data Material Maximum feed size 20mm (depending on the material) Minimum feed quantity 20 – 30 ml Batch grinding with collecting container (max. 2 l) Maximum throughput 150kg/h with continuous grinding Final refinements The final fineness is between 0.05 and 12mm, depending on the sample material. -
Page 25: Installation
Installation 4 Installation Transport The device is supplied on a transport pallet with wooden cover. We recommend transporting the packaged device with a pallet truck or forklift. DANGER! Do not walk under the transport pallet during transport. WARNING! Incorrect lifting can lead to injury or damage to property. -
Page 26: Positioning
Installation Positioning DANGER! Do not walk under the transport pallet during transport. To position the disc mill you will need a crane or other suitable means of transport as well as 2 carrying straps (not included with delivery) with a minimum length of 40cm and loadbearing capaci- ty of 500 kg. -
Page 27: Ambient Conditions
Installation After unscrewing the quick acting screws, pull the housing cover (14) back by a few centimetres. Subsequently, lift the housing cover up and out. Two carrying lugs to attach the carrying straps are then visi- ble. Attach the carrying straps to a crane or other auxiliary equipment. -
Page 28: Electrical Connection
4.5.1 Adjusting the disc mill to the mains network The DM400 is delivered with supply voltage adapted to suit your country. Commissioning The disc mill is supplied with mounted grinding discs. Before grinding for the first time, check the desired gap width (see chap- ter „Adjusting the gap width“) The device is operational once you... -
Page 29: Initial Switch-On/Function Test
Installation The device may only be operated with mounted and secured grinding discs. Smallest gap width 0.05mm Initial switch-on/function test Only switch the device on when all work described as from the chapter „Installation“ has been carried out! 4.7.1 Switching on Set the main switch (3) to I! The display (1) switches on and the STOP button (f) is lit up in red! If the grinding chamber is locked, the release and locking button (h) is lit up in green. -
Page 31: Working With The Disc Mill
Working with the disc mill 5 Working with the disc mill WARNING! No warranty or complaint will be accepted in the case of damage to the device when grinding tools are used which are not original accessories of the device. WARNING! Before starting the machine, ensure that the grinding discs are correctly mounted and that there are no... -
Page 32: Display And Control Panel
Working with the disc mill necessary according to use and the degree of wear. This is carried out as described in chapter 5.3 “Specifying the zero point” and in chapter 5.4 “Adjusting the gap width”. Display and control panel If the grinding chamber is open, the button (h) to lock the grinding chamber is not lit up! During the motorised closing of the grinding chamber, the button (h) flashes green until the grinding chamber is closed. - Page 33 Working with the disc mill The “Settings” menu is used for the following: ‒Setting the language → Language ‒Change the direction of rotation of the moving grinding disc (6) →Direction of rotation ‒View the disc position to check the current position and to set the zero point - View external connection...
-
Page 34: Specifying The Zero Point
Working with the disc mill Specifying the zero point The zero point is the gap width at which the fixed and the moving grinding disc rub slightly against each other so that no gap is present. All other gap widths are actuated from this zero point. -
Page 35: Adjusting The Gap Width
Working with the disc mill As soon as the smallest gap width is set and a minimal rub- bing of the discs can be heard, this can be defined as the zero point. Press the "<0>" button under the disc position setting. Reinsert the sample material container. -
Page 36: Reverse Operation
Working with the disc mill Reverse operation Reverse operation can be selected in the case of one-sided wear on grinding discs. Switch from the start menu to the settings window. In the line of the parameter “Direction of rotation”, press the “arrow”... -
Page 37: Changing The Language
Working with the disc mill Changing the language Switch from the start menu to the language setting window via the respective button. Select the desired language by clicking on the respective flag. After selecting the desired language, the screen is immedi- ately loaded into the new language. -
Page 38: Material Feed
Please observe the chapter „Replacing the grinding discs “ in the Operating Manual when assembling and removing the grinding discs! NOTICE! Retsch GmbH guarantees that only zirconium oxide grinding discs of the highest quality leave our company. Used grinding discs which are cracked, chipped or completely broken on the perimeter, cannot be accepted as complaint. - Page 39 Working with the disc mill Before switching the device on, care must be taken that the grinding chamber is locked and the sample material container is placed straight in the insert and is not twisted! CAUTION! Switch the device on before filling material in the hopper.
-
Page 40: Sample Removal
NOTICE! The grinding disc support and the housing are made from ductile cast iron. This cast steel is not rustproof. If you grind slightly damp sample material, after grinding you must dry the back of the grinding disc, the inside of the grinding disc support and all parts of the housing which come into contact with the sample. -
Page 41: Cleaning
Cleaning 6 Cleaning DANGER! Mains voltage!! Before starting cleaning work, unplug the device and protect it from restarting accidentally! Do not let liquid run into the device. Indicate cleaning work using a warning sign. Put safety equipment back into operation after cleaning work has been completed. -
Page 42: Housing
Cleaning WARNING! Risk of poisoning and fire! When using detergents which are flammable or harmful to health, it is essential to heed the valid safety regulations (TLV) and where applicable to clean the disc mill in a ventilated safety zone. Housing The machine can be cleaned outside when switched off using a soft damp cloth. -
Page 43: Servicing
Servicing 7 Servicing DANGER! Mains voltage Before starting servicing work, unplug the device and protect it from restarting accidentally! Indicate servicing work using a warning sign. Only have servicing carried out by skilled personnel. Put safety equipment back into operation after servicing and repair work. -
Page 44: Grinding Discs
Servicing Function part Task Test Service interval Grinding chamber Start inhibitor Open grinding cham- Always before use sensor ber; start; error mes- sage Grinding chamber Start inhibitor Do not close grinding Always before use safety interlock chamber electrically; start; error message Start inhibitor Always before use Grinding container... - Page 45 Servicing CAUTION! Before inserting the new discs, clean the support and the back of the discs thoroughly. This is in particular very important when using the ZrO discs and also with TC+CO discs, so that the discs are positioned without tension and parallel to each other. It is also important when tightening the screws that the tightening torque is not too great (see table) and is the same for both screws.
- Page 46 Servicing Turn the main switch (3) to I (ON)! To ensure that the hexagon screws at the back of the movable grinding disc can be reached, the grinding gap should be moved to the smallest width (see chapter “Adjusting the gap width“) Then press the release button (h) on the control panel.
- Page 47 Servicing 7. Then use the locking spanner (s) to secure the support disk of the movable grinding disk. To do this, the locking spanner has to be pushed through the hinge of the open grinding chamber. NOTICE! Hold grinding discs securely when changing them and do not let them fall.
- Page 48 Servicing 12. Remove hopper from the front. The mounting screws on the fixed grinding disc are then visible! DANGER! Risk of crushing when changing the grinding discs. Ensure that the grinding disc does not fall on the floor. Loosen the 2x M20 mounting screws using the locking handle and open the grinding chamber.
- Page 49 Servicing 18. Secure the hopper again in reverse order (see Points 10 and 11). 19. Plug in and lock the grinding chamber again with the help of the locking button (h). Zero point must be specified again (see chapter “Specifying the zero point“) Material Max.
-
Page 50: Replacing The Gear Oil
This oil must be changed after approx. 5 years. 7.3.1 Conducting the gear oil change Run the DM400 for approx. 15 minutes so that the gear oil inside warms up and drains off better. Switch the device off and unplug. -
Page 51: Clean Suction Filter
Servicing Hold a flat container underneath the oil drain plug (n) and unscrew this using an Allen Key No. 5 until oil flows out. Allow all of the oil to drain from the gearbox (approx. 0.22 l). Watch the size of the collecting container and empty at inter- vals where necessary, screwing the oil drain plug back in to do so. -
Page 53: Repair Work
Repair work 8 Repair work DANGER! Mains voltage ! Before starting repair work, unplug the device and protect it from restarting accidentally ! Indicate repair work using a warning sign . Have all repair work performed by skilled personnel . Put safety equipment back into operation after servicing and/or repair work . - Page 54 Clean the drawer chamber Do not use the mill anymore and contact the Contactor K1 does not Internal error in the drive control of the service department of company Retsch GmbH. open main drive Internal error in the main drive control...
-
Page 55: Checklist For Troubleshooting
Repair work Checklist for troubleshooting Malfunction Possible cause Rectification of fault Mill does not start No mains connection Plug in Mains switch is off Switch the mains switch on Grinding chamber safety switch open Correctly connect the grinding chamber Sample material container safety Correctly insert the sample material container switch open Thermal circuit breaker has triggered... - Page 56 Control panel is faulty Replace the control panel ment not possible Gap adjustment is faulty Contact Retsch Temporary problem solution using the set screw (7) on the bottom right-hand side at the front! Adjust the precise gap width manually! Discs have got stuck...
-
Page 57: Disposal
Disposal 9 Disposal Observe the respective statutory regulations when disposing of the device. Information on disposal of electrical and electronic devices in the European Com- munity: The disposal of electrical equipment within the European Community is specified by national regulations based on EU Directive 2002/96/EC on Waste Electrical and Electronic Equipment (WEEE). -
Page 58: Ec Declaration Of Conformity
EC Declaration of Conformity 10 EC Declaration of Conformity... - Page 59 Authorised representative for compiling the technical file: J. Bunke (Technical file) Retsch GmbH keeps the following available for inspection as technical file: Documents for development, design plans, analysis of measures for ensuring conformity, analysis of residual risks and operating manual in line with regulations, which correspond to accepted rules for the preparation of user information.
-
Page 61: Index
11 Index Hazard symbols used ............13 Accident prevention ............10 Hazard warnings ..............13 Adapting to the mains network ......... 28 Adjusting the gap width............35 Adjusting the grinding time ..........36 Locking the hopper cover ........... 39 Authorised persons ............. 10 Material feed ................ - Page 62 Zirkonium oxide grinding discs ......... 37...
- Page 64 Copyright ® Copyright by Retsch GmbH Retsch-Allee 1-5 42781 Haan Deutschland...
Need help?
Do you have a question about the DM400 and is the answer not in the manual?
Questions and answers
What tools and how do you remove the suction flange lid on the DM400
The suction flange lid on the Retsch DM400 is held in place by three magnets. To remove it:
1. Open the cover of the filter on the left side of the machine.
2. Pull off the lid; no tools are needed as it is magnetically attached.
No tools are required for this procedure.
This answer is automatically generated
@Mr. Anderson
@Mr. Anderson Thank you for replying. I found out when I was playing with the asset. Appreciate your time. Thanks for stopping by.