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Operating instructions Netter Pneumatic Linear Vibrators Series NTK

1. on request Higher operating pressures and temperatures are only permitted after consultation and written confirmation by application engineers of Netter GmbH The housing is bolted to the mass to be Alternatively the piston may also be vibrated bolted on the mass to be vibrated The piston oscillates freely In this case the housing oscillates _ P R Housing on mass to be vibrated Piston on mass to be vibrated Piston with weight oscillating Housing with weight oscillating The working moment depends on the weight of the freely oscillating part and the amplitude Amplitude and working moment change if the weight of the freely oscillating part is modified e g by installation of an additional vibration weight SM on piston or housing This means that the working moment can be pre selected by choosing the freely oscillating part with the corresponding weight The following table shows the technical data for the freely oscillating piston SW 1 as well as for the freely vibrating housing SW 2 the lower value is for 2 bars the higher value is for 6 bars oe kg Working moment cmkg Type NTK 8 AL K SM 8 2 SW3 NTK15x SW1 K SM 16 2 SW3 NTK 16 Sw 1 SW 2 SW 1 SW 1 0 29 0 29 0 675 1 69 1 69 NTK 18 AL K SM 16 1 SW3 NTK 25 AL SW1 K SM 25 3 SW3 NTK 25 SW 1 SW 2 NTK 40 AL SW1 K SM 25 3 SW3 NTK 40 SW 1 SW 2 NTK 55 AL SW1 K SM 85 1 SW3 NTK 55 HF SW 1 NF SW
2. 140 79 12 57 34 5 M 16 M 16 8 G 3 8 G 1 4 25 20 73 0 INTK55AL__ 55 98 133 109 20 58 38 5 M20 M 20 jio G 3 8 Ga 8 40 35 66 0 115 0 46 Central position of vibration 3 Design and function Vibration is generated by a freely oscillating automatically reversing piston Both masses the piston with the additional weight on the one side and the housing with the attached mass on the other side thereby vibrate against each other in proportion to their total weights If a higher amplitude of the vibrating mass is required a bigger oscillating weight simply has to be bolted to the piston In order to maintain the weight of the vibrating mass at a low level it may in case of steel housings also be connected to the piston allowing the housing to oscillate freely if necessary even with an additional vibrating weight Outlet Vibrating weight Piston Inlet Chamber A is always filled with compressed air while chamber B is alternately charged and relieved through the control bores Since the pressurized area at B is twice the size of the area at A the piston is pressed outwards or towards the cover During ventilation of B this process is reversed Since the piston is reversed before it reaches the stop the only noise is caused by the exhaust air which is dampened by a silencer Housing Cover 4 Safety NTK vibrators work with compressed air Make sure the compressed air s
3. affect the characteristics of the vibrators or even damage the units and cause the rejection of any warranty claims gt gt Permissible operating conditions Operating pressure 2 bar to 6 bar Operating pressures must not be exceeded or fallen short of Temperature NTK 15 x with plastic housing NTK with aluminium housing black NTK with steel housing orange 5 C to 100 C 5 C to 60 C 10 C to 150 C Operating temperatures must not be exceeded or fallen short of Lubrication other temperature ranges on request After receiving a written confirmation from application engineers of Netter GmbH vibrators NTK 8 AL NTK 15 x NTK 18 AL NTK 25 AL NTK 40 AL und NTK 55 AL may be operated without oil Exception With dried air and under extreme ambient conditions When using lubricated compressed air units with the designation AL reach a considerably longer service life than comparable units made of steel or cast iron housings painted orange or made of stainless steel All other units must only be operated with lubricated compressed air When using dry air the installation of a lubricator is mandatory Special versions stainless steel bronze on request Higher operating pressures and temperatures are only permitted after consultation and written confirmation by application engineers of Netter GmbH In dusty environments NTK vibrators must not be operated without bellows or anoth
4. information and danger symbols are used E Notes on important processes Important note on processes to be especially observed Warning of a danger source E Environmental waste disposal 2 Technical data Drive medium Clean filter lt 5 um compressed air or nitrogen Unfiltered air will cause damage to the vibrators Operating pressure 2 bar to 6 bar Operating pressures must not be exceeded or fallen short of Temperature NTK 15 x with plastic housing 5 C to 100 C NTK with aluminium housing black 5 C to 60 C NTK with steel housing orange 10 C to 150 C Operating temperatures must not be exceeded or fall short of gt Lubrication After receiving a written confirmation from application engineers of NetterVibration vibrators NTK 8 AL NTK 15 x NTK 18 AL NTK 25 AL NTK 40 AL und NTK 55 AL may be operated without oil Exception With dried air and under extreme ambient conditions When using lubricated compressed air the units with the designation AL reach a considerably longer service life than comparable units made of steel or cast iron housings painted orange or made of stainless steel However the permitted operating temperature of AL vibrators is lower All other vibrators must strictly be operated with lubricated compressed air or lubricated nitrogen When using dry air the installation of a lubricator is mandatory Special versions stainless steel bronze
5. surfaces on vibrator and weight must be thoroughly cleaned These surfaces must be free of oil To install the bellows pull the contact foil A off on one side and stick the bellows to the vibrator pull over the piston Retain the piston with an open end spanner and fasten the weight with a suitable screw of quality 8 8 Lock the screw Remove the foil on the opposite side and press the bellows against the contact surface The bellows can be removed at any When using compressed air as it must be clean Unfiltered air leads to excessive wear clogging of the silencer and complete damage of the vibrator Seizure of piston The compressed air supply must be lt 5 um Filter recommended Air discharge line If the exhaust air is discharged the discharge hose must have a bigger nominal width than the air supply hose in order to prevent throttling of the vibrator This would otherwise reduce the amplitude Minimum cross sections for valves and hoses Connection threads Hose size S s 3 2 way valve as NTK8AL M5 NW4 M5 oder G 1 8 NW 2 12 Checklist for installation Install the unit Lock the fastening screws Assemble maintenance unit valve supply line silencer If necessary dust risk of pinching install a bellow If required mount an additional weight vibrating weight to piston or housing support with spring if necessary Have fastening screws been locked Check Has the uni
6. 2 SW 1 SW 2 SW 1 SW 2 3 57 2 46 19 48 16 36 1 27 4 20 NTK 110 Intermediate values can be reached by changing the pressure On some types the weight differences of piston and housing are only very small In such cases the data for the freely oscillating piston SW 1 and the freely oscillating piston with a common vibrating mass SM SW3 are indicated The designation of the vibrating mass SM is given in brackets P SM 8 2 which means piston plus vibrating mass SM 8 2 Vibrating weights are available as accessories see chapter 11 1 Air consumption l min Nominal frequency min Centrifugal force N 0 030 0 05 0 06 2 440 3 657 15 44 7 32 0 088 0 15 0 21 1 380 2 080 15 50 6 25 1 745 2 544 49 104 17 72 758 1 152 53 123 14 54 1 33 4 90 4 50 600 923 96 210 8 39 0 53 1 18 1 41 972 1 572 61 191 13 58 1 655 6 88 6 55 686 1 080 177 419 eae NG 8S 2 60 9 10 9 82 690 1 067 237 612 24 102 2 475 6 72 7 44 900 1 389 298 787 36 210 1 200 1 930 282 503 49 228 600 1 108 385 1 100 34 161 3 43 7 25 6 28 _ 1 113 1 768 492 1 077 83 384 5 90 14 4 13 47 884 1 467 617 1 588 64 330 12 10 13 59 13 11 1 200 1 838 1 073 2 428 148 532 16 60 13 48 15 93 1 447 2 133 1 548 3 974 207 634 These technical data are reference values and may vary in dependence on the application further data o
7. NetterVibration IN A Operating instructions June 2007 Netter Pneumatic Linear Vibrators BA No 817 E Series NTK These operating instructions apply to NTK 8 AL NTK 15 x NTK 16 NTK 18 AL NTK 25 AL NTK 25 Important note instruction carefully and store afterwards operating instructions have not been observed reserved Netter GmbH Germany United Kingdom www NetterVibration com Fritz Ullmann StraBe 9 2 Sandpiper Close 55252 Mainz Kastel Station Road Hednesford WS12 4RN Tel 49 6134 2901 0 Tel 44 1543 424990 Fax 49 6134 2901 33 Fax 44 1543 423196 info Netter Vibration de info Netter Vibration co uk Before use of the pneumatic linear vibrators series NTK read this operating Netter GmbH does not assume liability for damage to property and persons if the product has been technically modified or if the notes and regulations of these This documentation is copyrighted All rights e g for translation into other languages reprinting and copying of these operating instructions or parts hereof remain strictly Page 1 16 NTK 40 AL NTK 40 NTK 55 AL NTK 55 NTK 85 NTK 110 Switzerland Erlenweg 4 4310 Rheinfelden Tel 41 61 8316200 Fax 41 61 8311291 info Netter Vibration ch Table of Contents 1 GENERAL NOTES 3 2 TECHNICAL DATA 4 3 DESIGN AND FUNCTION 7 4 SAFETY 8 5 TRANSPORT AND STORAGE 9 6 INSTALLATION 10 7 START UP OPERATION 13 8 SERVICE MAINTENANCE 14 9 TROUBLESHOOTING 15 10 S
8. PARE PARTS 15 11 APPENDIX 16 11 1 Accessories 16 11 2 Disposal 16 11 3 Enclosures 16 Scope of delivery Check the packaging for possible signs of transport damage In the event of damage to the packaging check that the contents are complete and undamaged If there is any damage inform the shipping agent Compare the scope of the delivery with the delivery note 1 General notes Pneumatic linear vibrators of series NTK comply with the EC machine regulation 98 37 EG In particular standards DIN EN ISO 12100 part 1 and 2 have been observed The vibrators generate directed linear vibrations or shaking movements General areas of application are Loosening conveying compacting separating of bulk materials and reduction of friction NTK vibrators are used to empty bunkers to drive conveyor troughs sieves and vibrating tables Applications in the food industry as well as in wet environments are also possible when complying with the operating instructions of the operating company The drive medium is compressed air or nitrogen In addition the frequency can be infinitely controlled by means of pressure regulators or throttles in the supply line and the amplitude by installation of a throttle in the exhaust line Weights can be attached to piston or housing to increase working moment and thereby the amplitude This reduces the frequency at the same time In these operating instructions the following
9. e g stainless steel bronze etc All units can be disposed of through Netter GmbH The current disposal prices are available on request 11 3 Enclosures Enclosure s Further information available on Declaration of manufacturer request Leaflet no 24 NTK Recommendations regarding the design of small conveyor troughs with NTK vibrators and other information
10. er dust protection 5 Transport and storage Check the packing for possible shipping damage If the packing is damaged check the contents for completeness and possible damage In case of damage inform the transport agent Compare the scope of supply with the delivery note The units are packed ready for installation The type plate is mounted on the vibrator If lubricated compressed air is required the unit is delivered with a corresponding note next to the air inlet port If not specified accessories and additional components grommet silencer will be supplied unmounted Special transport conditions are not specified A 40 C and 150 C The units should be stored in a dry and clean environment Units with steel housing must be oiled before being returned to the stores put machine oil in air inlet and outlet and move the piston several times by hand in and out On new units the piston may be blocked by paint In this case turn the piston slightly to loosen it The storage temperature may be between This does not apply for operating temperature compare with chapter 4 SAFETY Permissible Operating Conditions 6 Installation During installation please comply strictly with the safety regulations in chapter 4 and the accident prevention instructions Make sure the compressed air supply is switched off during installation or when working on vibrator and air supply lines Fo
11. esign and Working Principle inlet on cover side outlet on piston side Check if pressure is sufficient Check valve It must be a 3 2 way valve which vents the supply line to the vibrator A leaking cover will cause standstill Tighten the screws Observe minimum cross sections see specifications under Installation Causes slow starting and possible standstill of piston in cenral position If necessary install a pilot controlled 3 2 way valve in front of the vibrator Open the throttle further Clean the silencer Air supply Cover loose Line cross sections Line between valve and NTK too long Exhaust air excessively throttled Piston slowed down in Make sure that the piston can oscillate freely It must central position not be positioned in central position by external influences Check screws on piston and housing Check function of lubricator if lubricated compressed air is specified Dismantle remove dirt film Check unit and piston for visible wear Check size of unit Has the size been chosen correctly Check the pressure at the inlet of the unit during operation If necessary increase the pressure Screws loose No lubrication Rattling Power drop Unit soiled Wear Design Pressure too low 10 Spare Parts Please provide the following information when ordering spare parts 1 Type of unit 2 Description of spare part 3 Required quantity Please note Piston and housing a
12. from the following table Higher tightening torques may cause fracture of screws or tearing of threads Inadequate screw connections may cause loosening of units by vibration This can cause damage to persons and material Recommended average tightening torques for screws property class 8 8 used on NTK housings and pistons screws as delivered not additionally greased or oiled Type Thread NTK 8 AL M 6 Housing NTK 8 AL M_5 Piston NTK 15 x M 10 NTK 16 M 10 M 10 NTK 25 M 16 NTK 25 AL M 16 NTK 40 M 16 M 16 NTK 55 M 20 M 20 NTK 85 M 20 NTK 110 M 20 use total length of thread For units NTK 55 NTK 85 and NTK 110 use at least 4 of the bores in the housing to mount the housing to the vibrating mass Type NTK 55 es E NTK 85 M 10 NTK 110 In case of oil free operation or operation in dusty environments NTK vibrators must not be operated without bellows or another dust protection The permissible temperature range must not be exceeded or fallen short of during operation see chapt 4 Safety Permitted Operating Conditions time Velcro fastening drive medium filtered reliably fastened Air supply line The air resistance increases with the hose length The following recommendations refer to hose lengths of max 3 m up to the next bigger hose cross section For longer supply lines we recommend bigger cross sections For the installation of the bellows the contact
13. hion is no longer wear Inspection for hidden wear Due to the close tolerances minor lead to a reduction performance Pull the piston out of the unit with a jerk if necessary remove any O rings on the piston beforehand Nevertheless there must be no metal end contact as otherwise the air effective reduction in performance start of 14 in Mist lubricator With a mist lubricator connected in series make sure that it works as specified contents diminishing number of drops h Top up oil Filter Empty the filter when required clean the filter insert wash out Cleaning All NTK vibrators can be externally cleaned with pressure water as long as the exhaust air is discharged through a hose or the exhaust openings are closed Water must not enter through the silencer into the piston chamber Contamination Especially on units working with oil free air contaminated air can cause a deposit of dirt or dust which slows the vibrator down If this is noticed power drop or even standstill the unit must be opened and cleaned inside The dirt film must be cleaned off with an oiled cloth from the inside of the housing and from the piston Further notes can be found in chapter 9 Troubleshooting The maintenance intervals mainly depend on the purity of the drive medium 9 Troubleshooting Fault possible cause Remed No starting Connection mixed up See illustration in chapt 3 D
14. n request oil free operation is only permitted after consultation and written confirmation by application engineers of Netter GmbH Noise level Depending on the type with silencer and at an air pressure of 6 bar the noise level is about 78 80 dB A It decreases if the air pressure is reduced Time of operation Long operating periods change the performance data due to wear Dimensions mm G alt U ET M1 T ove lt I y K R L2 M2 T C J L INTK 15x 15 50 114 9 38 23 5 m10 G18 Gwe Nrk 16 16 49 111 5 38 215 m10 G18 G18 ntk 18aL 18 49 116 8 42 25 0 M10 G18 G18 Nrk 25 25 64 138 9 52 30 5 Mm16 G14 G14 Nrk 40 40 84 140 12 54 33 0 mi6 G38 G14 INTK _s5nF_ 55 110 125 19 55 38 0 m20 9 Gas G38 _ INTK ssHF 55 110 115 29 65 47 0 m20 96 G38 Gas Central position of vibration additional fastening possibilities on NTK 55 optionally M or M2 105 95 40 105 F rk asa 28 50 i38 56 7 82 205 m 16 Mi6 G ia a va 25 18 72 0 INTK40AL__ 40 73
15. on the weight attached to the piston Lower weight or no weight mean higher frequency and smaller amplitude Higher weight bigger amplitude lower frequency Regulating the amplitude The amplitude can be regulated by throttling the exhaust air installation of a throttle in the discharge port Checklist for commissioning With this the centrifugal force can be reduced The frequency remains almost unchanged Regulating the frequency The frequency can be reduced by lowering the air pressure at the inlet port of the NTK This also reduces the centrifugal force The amplitude remains almost unchanged Check all hose connections before opening the compressed air supply Adjust the desired frequency on the pressure regulator Adjust the desired amplitude by throttling the exhaust air Adjust the mist lubricator if existing 8 Service Maintenance chapter 4 Retightening Screw connections must be checked and if necessary retightened after 1 hour of operation after initial start up and then at regular intervals normally each month The specified torque must thereby be observed see chapter 6 The fastening screws for vibrator and vibrating mass must be retightened or checked after 1 operating hour When servicing the unit please observe the safety regulations in Before each inspection and service work shut off the compressed air against supply and secure it unintended activation wear can cus
16. r air connections do not use any threads longer than specified Parts of Teflon sealing tape must not enter into the vibrator Mounting the vibrator Up to size NTK 40 the units can either be attached by their housing or by their piston depending on the application In the case of type NTK 55 and bigger models the housing has bores for fastening see page 11 ws lf the vibrator is mounted horizontally and big vibrating weights are used weight of freely oscillating part heavier than SMeea refer to the following table the weights must be supported by a spring drawings for this purpose SMreg Housing or Piston are available on request vibration weight Type SMFea kg Type SMrea kg NTK 8 AL 0 15 NTK 40 AL NTK 15 x 0 70 NTK 40 5 0 NTK 16 1 00 NTK 55 AL 6 5 NTK 18 AL 0 75 NTK 55 NF 9 5 NTK 25 AL 1 60 NTK 85 NF 18 0 NTK 25 3 00 NTK 110 20 0 NTK vibrators may also be used as knockers Consultation before use is recommended The piston must knock against a surface which is vertical to the vibrator This application requires lubricated compressed air 10 In critical installation situations the unit must be secured with clamp and steel rope As a protection against loosening use self locking screws and nuts self locking lock washers no spring rings or use a liquid screw retention agent e g Loctite 270 The tightening torques can be taken
17. re matched to each other and can only be delivered together 15 E 11 Appendix 11 1 Accessories The following accessories are available for linear vibrators of type NTK on request Description Remark Bellows NFB for all units except NTK 8 AL For NTK 8 AL a jerone NS covering steve is avaiable whch can bo stewed on qualities and dimensions 3 2 way valves For electric pneumatic and manual control Throttle valves For amplitude control manually adjustable or pneumatically controllable for remote control Filter regulator lubricator or filter regulator for oil free NTK Electric or pneumatic for interval operation For quick displacement of vibrators on containers Special designs NTK vibrators are available for extreme temperatures completely made of stainless steel for use in aggressive environments for higher frequency ranges HF versions as well as in shorter lengths Information on request 11 2 Disposal Depending on the material the parts must be disposed of according to official regulations Material specifications All parts of these vibrators are suitable for recycling e Black coated housing Cover housing NTK 15x Piston Aluminium Plastic POM Stainless steel e Screws Stainless steel e Orange painted housing Grey cast iron e Piston and screws for cast iron housing gt Steel UUU Special units also non lubricated units for other temperatures Material on request
18. t been secured against falling down 7 Start up Operation Start up of the vibrators can be performed immediately after the correct installation The frequency can be adjusted or regulated with the pressure regulator on the service unit Use a 3 2 way valve Standard installation Special plans on request Bellow Silencer Vibrating weight If lubricated compressed air is specified for the NTK orange housing or stainless steel housing Fill the oil mist lubricator with acid free and resin free pneumatic oil ISO viscosity class according to DIN 51519 VG 5 to VG 15 only for normal temperature fill with SAE 5 to SAE 10 for ambient temperatures above 60 then adjust amount of drops while the unit is running The amplitude can be regulated with a throttle installed in the exhaust air outlet Attention Reduced cross sections observe NW already throttle Silencer 3 2 way valve NTK 16 NTK 25 NTK 40 NTK 55 NTK 85 NTK 110 3 4 drops min 1 2 drops min 1 2 drops min 2 3 drops min 2 3 drops min 3 4 drops min Only after the adjustment and correct function of the mist lubricator ATTENTION E Adjust number of drops while unit is running the unit is ready for operation When using dried air and under Ay extreme ambient conditions the eae installation of an upstream lubricator is required Choosing the amplitude Amplitude and frequency will change in dependence
19. upply is switched off during installation Disconnect the supply lines quick coupling before starting other work on vibrators and supply lines Before starting operation all hoses must be tightly connected A pressurized hose coming loose can cause severe injury Vibrators as well as parts of the structure may come loose because of vibration Falling parts can cause damage to persons and material Screw retention components and or Loctite or similar must be used Screw connections must be checked and if necessary retightened after 1 hour of operation and then at regular intervals normally each month In critical installation situations the unit must be secured with a steel rope NTK vibrators are equipped with moving parts which can cause injury e g bruises or pinching Direct touching of a vibrating part must be prevented by appropriate design measures e g by screening on customer site There may be a risk of getting pinched between the bolted weights and the housing of the vibrator or between the housing and the structure Bellows are available as protections These also protect the piston rod against deposits of dust For type NTK 8 AL a cover sleeve is available This covers the piston with vibrating weight SM 8 1 T oi Silencer Operation without silencer should be avoided in order to protect the environment against high noise values Technical changes to the equipment may

Operating instructions Netter Pneumatic Linear Vibrators Series NTK

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