Operating instructions Variable speed rotor mill PULVERISETTE 14 classic line Valid starting with: 14.5010/05000 Valid starting with: 14.
Fritsch GmbH Milling and Sizing Industriestraße 8 D - 55743 Idar-Oberstein Telephone: +49 (0)6784/ 70-0 Fax: +49 (0)6784/ 70-11 email: info@fritsch.de Internet: www.fritsch.
Certifications and CE conformity Certifications and CE conformity Certification Fritsch GmbH has been certified by the TÜV-Zertifizierungsgemeinschaft e.V. An audit certified that Fritsch GmbH conforms to the requirements of the DIN EN ISO 9001:2008. CE Conformity The enclosed Conformity Declaration lists the guidelines the FRITSCH instrument conforms to, to be able to bear the CE mark.
Table of contents Table of contents 1 Basic structure............................................................................... 6 2 Safety information and use........................................................... 7 2.1 Requirements for the user..................................................... 7 2.2 Scope of application............................................................... 7 2.2.1 Operating principle............................................................. 9 2.2.
Table of contents 6.3 6.4 6.5 6.6 6.7 6.8 Installing the grinding elements........................................... Conducting a grinding operation......................................... Removing the grinding elements......................................... Milling with conversion kit for larger quantities.................. Grinding with external cooling............................................. Grinding with heavy-metal-free or metal-free grinding elements.........................................
Basic structure 1 1 2 3 4 5 6 7 8 9 Basic structure Latch Lower part of housing Motor mounting flange Motor shaft Labyrinth disk O-ring, 94x3 O-ring, 88x3 Collecting vessel Housing cover 10 11 12 13 14 15 16 17 -6- Rotor Sieve ring Inner funnel Inner funnel for cross-section reduction Lid seal Collecting vessel lid Control panel Actuator + lock
Safety information and use 2 Safety information and use 2.1 Requirements for the user This operating manual is intended for persons assigned with operating and monitoring the Fritsch of the PULVERISETTE 14. The operating manual and especially its safety instructions are to be observed by all persons working on or with this device. In addition, the applicable rules and regulations for accident prevention at the installation site are to be observed.
Safety information and use The PULVERISETTE 14 allows the fast comminution of soft to mediumhard samples, such as: Plants Wood Roots Leaves Needles Drugs Dragées Pills Textiles Leather Chemicals Fertilizer Food Grains Feed pellets Pulp Filler Chalk Kaolin Coal Spices Plastics After embrittlement with liquid nitrogen: Synthetic resins Foils Plastics (PVC, PP, PE) The extremely high-speed PULVERISETTE 14 enables the comminution of temperature-sensitive ductile or plastic samples.
Safety information and use 2.2.1 Operating principle The fast comminution capability of the PULVERISETTE 14 is due to the extremely high speed of the rotor, which is made of stainless, tempered steel. With a rotational speed of up to 92 m sec-1, the impact energy lies in the range of pin mills, known for their high grinding capacity. Additionally, the sharp-edged teeth of the rotor work in combination with the installed sieve to grind the sample by shearing - similar to high speed cutting mills.
Safety information and use The of the PULVERISETTE 14 may exclusively be used within the scope of applications set down in this manual and within the framework of guidelines put forth in this manual. In case of non-compliance or improper use, the customer assumes full liability for the functional capability of the PULVERISETTE 14 and for any damage or injury arising from failure to fulfil this obligation.
Safety information and use CAUTION! This symbol and keyword combination points out a possibly hazardous situation that can result in slight or minor injury if not avoided. NOTICE! This symbol and keyword combination points out a possibly hazardous situation that can result in property damage if not avoided. ENVIRONMENT! This symbol and keyword combination points out a possibly hazardous situation that can result in environmental damage if not avoided.
Safety information and use WARNING! This symbol and keyword combination points out a directly hazardous situation due to movable parts. Ignoring information with this designation can result in hand injuries. WARNING! This symbol and keyword combination points out a directly hazardous situation due to hot surfaces. Ignoring information with this designation can result in serious burn injuries due to skin contact with hot surfaces.
Safety information and use Designation Explanation References to sections in this manual and relevant documentation Lists without a specific order [Button] Operating elements (e.g. push button, switch), display elements (e.g. signal lamps) ‘Display’ Screen elements (e.g. buttons, function key assignment) 2.5 Device safety information Please observe! n Only use original accessories and original spare parts. Failure to observe this instruction can compromise the safety of the machine.
Safety information and use NOTICE! Immediately replace damaged or illegible information signs. n Unauthorised alteration of the of the PULVERISETTE 14 will void Fritsch's declaration of conformity to European directives and void the guarantee. n Only use the of the PULVERISETTE 14 when it is in proper working order, as intended and in a safety- and hazard-conscious manner adhering to the operating manual. In particular, immediately rectify any malfunctions that could pose a safety hazard.
Safety information and use 1. Remove the mains plug and fully unscrew the connection plate and filter unit on the back (7 screws). 2. Open the lock (b) with the triangular key (a) by turning it to the right. 3. The housing cover can now be flipped open. 4. In order to be able to operate the PULVERISETTE 14 again, activate the safety lock by turning the triangular key to the left and close the housing cover. Only when the lid is locked can the motor be started by pressing the [START] key.
Safety information and use WARNING! – Crushing hazard when closing the housing cover! – Crushing hazard when removing and positioning the collecting vessel! – The collecting vessel can become very hot! – Never operate the device without sieve ring, collecting vessel and lid. If no sieve ring is desired, the spacer ring no. 44.1110.00 has to be used. – Cutting hazard at the grinding elements such as rotors, sieves and collecting vessel. These can have sharp edges.
Technical data 3 Technical data 3.1 Dimensions 431 x 310 x 478 mm (height x width x depth) 3.2 Weight Weight: 23 kg (net), 26 kg (gross) 3.3 Operating noise Operation condition of device during measurement: Idle, max. speed (20000 rpm) n Workplace-specific emission value LpA: 88.4 dB n Sound power level LWA: 101.4 dB Operation condition of device during measurement: 1.5 mm sieve with max. speed (20000 rpm), source material: feed pellets. n Workplace-specific emission value LpA: 86.
Technical data 3.6 Power consumption The maximum power consumption briefly reaches approx. 2kW. 3.7 Electrical fuses Fuse on the back of device (mains voltage supply): 1x15 AT 3.8 Material n Maximum feeding size approx. 10 mm n Maximum feeding amount when using the pan 200 ml n Maximum feeding amount when using the filter sack 1000 ml 3.9 Final fineness The final fineness depends on the sieve ring used and is between 0.08 mm and 6.0 mm.
Installation 4 Installation 4.1 Transport The device is delivered in a wooden crate or cardboard box. We recommend using a forklift or pallet truck for transporting the packed device. DANGER! Do not step under the transport pallet during transport. WARNING! Improper lifting can lead to personal injury or property damage. The machine is only to be lifted with suitable equipment and by qualified personnel. The guarantee excludes all claims for damage due to improper transport. 4.
Installation 4.4 Setting up DANGER! Do not step under the transport pallet during transport. WARNING! Crushing hazard! Always lift with 2 persons. Hold the bottom edge of the housing when lifting. NOTICE! Never operate of the PULVERISETTE 14 while it is standing on the transport pallet! NOTICE! Keep the air outlet on the side ventilation grate free. Risk of overheating! Place the PULVERISETTE 14 on a flat, stable surface. It does not have to be fastened to this surface.
Installation 4.6 Electrical connection DANGER! Provide short-circuit protection! Risk of damage due to short-circuits. – Make sure that the socket is connected to a mains line protected with a residual current circuit breaker. DANGER! Mains voltage! Changes to the connection line may only be made by a qualified person. CAUTION! Ignoring the values on the type plate may result in damage to the electrical and mechanical components.
Initial start-up 5 Initial start-up Perform initial start-up only after all work as described in Ä Chapter 4 ‘Installation’ on page 19 has been carried out. 5.1 Switching on n Connect the device to the mains. n Switch on the device with the main switch (b) on the back of the device. n The display lights up, the electric lock is opened after a short delay. 5.2 Function check CAUTION! Only conduct the function check at a speed of 6000 1/min.
Using the device 6 Using the device WARNING! If the grinding elements used are not original accessories, we assume no guarantee and exclude all liability for damage to the device or for personal injury. WARNING! Make certain before starting the machine that the grinding elements have been properly installed and locked in place and that there are not any loose parts inside of the device.
Using the device NOTICE! Risk of overheating! Do not allow the PULVERISETTE 14 to mill longer than half an hour without cool-down phases. NOTICE! Risk of melting! Feed material with unknown properties or material with a low melting point to the device in small quantities. Then check the sieve to see if the material has started to stick or melt. If this is the case, the sample must be "embrittled" before grinding with the PULVERISETTE 14.
Using the device When feeding the material, the inner funnel can be removed. This rotor is also suitable for pre-crushing or rough comminution. 24-rib rotor The rotor with 24 ribs (order no. 44.4240.10) enables fast fine grinding for all materials with a particle feed size < 5 mm (largest length). NOTICE! The 24-rib rotor should not be used for grinding plastics containing carbon or glass fibres. There is a risk of breaking a tooth. When using the conversion kit (order no. 14.3510.
Using the device Sieve rings with trapezoidal perforation, available as orig‐ inal accessories from Fritsch, can have manufacturing sieve opening tolerances of up to +/‐ 20% of the nominal mesh width.
Using the device 6.3 Installing the grinding elements The grinding elements are to be installed in the PULVERISETTE 14 as described in the following: 1. Set the labyrinth disk (5) on the motor mounting flange (3) and press it firmly downwards until it lies flush on the motor mounting flange (3). It is clamped and centred by an O-ring. 2. Set the collecting vessel (8) onto the labyrinth disk (5).
Using the device NOTICE! During opening of the housing cover (9), the inner funnel (13) can fall out to the back. CAUTION! The PULVERISETTE 14 may only be operated when all parts are in place. Neglecting to install parts will result in damage to the device. 6.4 Conducting a grinding operation CAUTION! Wear hearing protection! Hearing protection should be worn when milling, because noise levels can reach or exceed 85 dB(A). After closing the PULVERISETTE 14 as described in , the milling can be started. 1.
Using the device 6.5 Removing the grinding elements 1. Lift off the lid of the collecting vessel (15) and, moving outwards with a brush, clean the grinding stock from the outer surface of the sieve ring (11) and from the inner edge of the collecting vessel (8). If source material falls downward, it does not directly enter the device; however, this should immediately be vacuumed away with a vacuum cleaner (Ä Chapter 7 ‘Cleaning’ on page 41) after removing the sample. 2.
Using the device 6.6 Milling with conversion kit for larger quantities For the article numbers, please refer to our homepage or the spare parts catalogue. The conversion kit for comminution of larger amounts consists of: The conversion kit for comminution of larger amounts consists of: n n n n Collecting vessel with outlet Clamping ring with bent tube Nylon support sack Paper filter sack We recommend using the conversion kit: n when milling larger quantities.
Using the device 3. Fasten the bent tube support there. 4. Insert the paper filter sack (2) in the nylon support sack (4) and clamp it firmly at the plastic flange (1) with the clamping ring (3). Make sure that the nylon support sack has been slid over the rubber seal (5). Installing and removing the grinding elements Carry out the installation and removal of the grinding elements as well as the milling process as described in Ä Chapter 6.3 ‘Installing the grinding elements’ on page 27, Ä Chapter 6.
Using the device For highly temperature-sensitive source material, we recommend cooling the source material with liquid nitrogen before milling and then feeding the material into the funnel in very small quantities, e.g. with a spoon spatula. CAUTION! Wear safety goggles and safety gloves! When milling with liquid nitrogen or dry ice, overpressure can form in the grinding chamber. Risk of splashing! Additionally, observe all laboratory guidelines for handling liquid nitrogen.
Using the device Installing and removing the grinding elements 1. Carry out the installation and removal of the grinding elements as well as the grinding process as described in Ä Chapter 6.3 ‘Instal‐ ling the grinding elements’ on page 27, Ä Chapter 6.5 ‘Removing the grinding elements’ on page 29 and Ä Chapter 6.4 ‘Conducting a grinding operation’ on page 28. 2. The inner funnels (12) and (13) made of stainless steel may not be used. 6.
Using the device The flow of source material along the channel is set with the feeder control unit. The flow of the source material out of the funnel onto the channel of the LABORETTE 24 channel has to be adjusted according to the flow properties of the source material. n Set the distance between the funnel and the channel by changing the height of the funnel so that the "right" amount is fed. n If too much is fed, the feeder switches off automatically too often slide the funnel somewhat downwards.
Using the device 6.10 Grinding with the impact rotor element For the article numbers, please refer to our homepage or the spare parts catalogue.
Using the device 6.11 Grinding with the conversion kit for pin mills For the article numbers, please refer to our homepage or the spare parts catalogue. 1 2 3 4 5 6 7 8 9 Motor mounting flange Labyrinth disk O-ring 94x3 O-ring 88x3 Collecting vessel Pin rotor Spacer ring Lid seal Collecting vessel lid with pin insert With this conversion kit, the rotor mill can be converted to a pin mill without sieve.
Using the device For the article numbers, please refer to our homepage or the spare parts catalogue. Assembly instructions for the "frame" and "dust exhaust system with cyclone separator" are supplied with the order. Conversion of the PULVERISETTE 14 for use with the cyclone separator 1. Use a cross-head screwdriver to unscrew the cover plate on the left side of the housing cover. 2. Remove the cover screws in the lower part of the housing. 3. Fasten the bent tube support there.
Using the device Installing and removing the grinding elements Carry out the installation and removal of the grinding elements as well as the milling process as described in Ä Chapter 6.3 ‘Installing the grinding elements’ on page 27, Ä Chapter 6.5 ‘Removing the grinding elements’ on page 29 and Ä Chapter 6.4 ‘Conducting a grinding operation’ on page 28. The only difference is that the tube to the collecting vessel is inserted in and fastened to the bent tube support.
Using the device 7. Sample feeding with the LABORETTE 24 is carried out as described in Ä Chapter 6.9 ‘Continuous feeding of source material’ on page 33. When the sample bottle is 2/3 full, stop the comminution. To do this, switch off the PULVERISETTE 14 and the sample exhaust system. Then empty the sample bottle.
Using the device 6.14 Control panel When the mill is switched on, the values of the last milling are displayed. n Timer: Range "P", "1"-"99" min, where "P" means continuous operation. n Speed: Range "6"-"20" (x1000 rpm), adjustable in steps of 1000, i.e. a speed between 6000 and 20000 rpm can be selected. n Load lights up when the motor is overloaded by too much source material. n Temperature: Off when operation is fault-free. – Flashes at elevated temperatures.
Cleaning 7 Cleaning DANGER! Mains voltage! – Before beginning with cleaning work, unplug the mains plug and protect the device against being unintentionally switched back on. – Do not allow any liquids to flow into the device. – Indicate cleaning work with warning signs. 7.1 Device The outside of the device can be cleaned with a soft, damp cloth when it is in the switched off state. Do not use solvents for cleaning. 7.
Cleaning 7.3 Intake filter On the back side of the PULVERISETTE 14, the intake area for cool air entering the device is protected with a filter mat so that only relatively dust-free cool air is taken into the device. NOTICE! Maintenance of this filter mat is absolutely required. The drive motor is not sufficiently cooled when the filter mat is excessively soiled. This results in motor failure. Inspect the filter mat (order no. 83.1120.
Maintenance 8 Maintenance DANGER! Mains voltage! – Maintenance work may only be performed by specialised personnel. – Before beginning with maintenance work, unplug the mains plug and protect the device against being unintentionally switched back on again! – Put safety equipment back into operation after maintenance work. – Indicate maintenance work with warning signs. We recommend keeping a safety logbook Ä Chapter 14 ‘Safety logbook’ on page 52, where all work (maintenance, repairs......
Maintenance Functional part Task Test Maintenance interval Fan, Cooling Twice a year filter mats Grinding chamber and electronics Proper functioning, clean when soiled Rotor Sample comminution Visual inspection Before each use Sieve Sample division 8.2 Drive motor The three-phase motor does not require any maintenance. 8.3 Safety n Inspect the interlock for soiling before beginning work, especially the slit that holds the actuator. n Always keep the interlock clean and free of dust.
Repairs 9 Repairs DANGER! Mains voltage! – Before beginning with repair work, unplug the mains plug and protect the device against being unintentionally switched back on. – Repair work may only be performed by specialised personnel. – Put safety equipment back into operation after repair work. – Indicate repair work with warning signs. 9.
Examples of milling results 10 Examples of milling results The following examples from our laboratory for technical applications can be used as a reference for selecting the grinding elements and for optimal usage of the PULVERISETTE 14. Source material Amount (grams) Rotor Sieve ring Time (min.) Polyvinyl alcohol 20 g 12 0.12 trapez. perf. 2 Polyvinyl alcohol 50 g 12 1.00 trapez. perf. 1 Polyester yarn 4g 12 4.00 round perf. 1 Teflon (2 mm) 500 g 24 0.50 trapez. perf.
Disposal 11 Disposal It is hereby confirmed that FRITSCH has implemented the directive 2002/95/EC of the European Parliament and Council from 27th January 2003 for the limitation of the use of certain dangerous substances in electrical and electronic devices.
Guarantee terms 12 Guarantee terms Guarantee period As manufacturer, FRITSCH GmbH provides – above and beyond any guarantee claims against the seller – a guaranty valid for the duration of two years from the date of issue of the guarantee certificate supplied with the device. Within this guarantee period, we shall remedy all deficiencies due to material or manufacturing defects free of charge. Rectification may take the form of either repair or replacement of the device, at our sole discretion.
Guarantee terms Costs not covered by the guarantee This guarantee excludes any costs for transport, packaging or travel that accrue in the event the product must be sent to us or in the event that one of our specialist technicians is required to come to your site. Any servicing done by persons not authorised by us and any use of parts that are not original FRITSCH accessories and spare parts will void the guarantee.
Exclusion of liability 13 Exclusion of liability Before using the product, be sure to have read and understood this operating manual. The use of the product requires technical knowledge; only commercial use is permitted. The product may be used exclusively within the scope of applications set down in this operating manual and within the framework of guidelines put forth in this operating manual and must be subject to regular maintenance.
Exclusion of liability Fritsch GmbH excludes any liability, warranty, or other obligation to compensate for damages, regardless of whether this liability, warranty, or other obligation is explicit or implicit, contractual or arising from unlawful acts or prescribed contractually, by law, or otherwise.
Safety logbook 14 Date Safety logbook Maintenance / Repair Name - 52 - Signature
Index 15 Index Influencing factors Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . sieve perforation size . . . . . . . . . . . . . . . . . . Source material feed rate . . . . . . . . . . . . . . . . Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Initial start-up . . . . . . . . . . . . . . . . . . . . . . . . . . A Accident prevention . . . . . . . . . . . . . . . . . . . . . . . . 7 Ambient conditions . . . . . . . . . . . . . . . . . . . . . . . 20 Authorised persons .
Index Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Working with the device . . . . . . . . . . . . . . . . . . . . 23 W Warning information . . . . . . . . . . . . . . . . . . . . . . 10 WEEE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
© 2013 Fritsch GmbH Milling and Sizing Industriestraße 8 D - 55743 Idar-Oberstein Telephone: +49 (0)6784/ 70-0 Fax: +49 (0)6784/ 70-11 email: info@fritsch.de Internet: www.fritsch.
