Assembly and Operating Instructions for Netter Pneumatic Impactors
Contents
1. A 3 2 way valve and a quick air exhaust valve are integrated in the valve head of the PKL 740 The control valve existing on customer s site can therefore be mounted at any distance from the PKL 740 The pilot air supply must be connected laterally A silencer is mounted on the exhaust outlet for the ventilation EE kit The EE kit reduces the sound level and creates a rubber hammer effect 5 Transport and Storage Check the packaging for possible signs of transport damage In the event of damage to the packaging check that the contents are complete and IMPORTANT Packaging The units are packed ready to install The nameplate is attached to the impactor Accessories and add on parts are delivered unmounted unless otherwise agreed Special transport conditions are not stipulated Storage The units should be stored in a clean dry environment PKL impactors must be oiled before going back into storage PKL must be screwed or clamped to a plate before operation The impact plate of PKL 2100 PKL 5000 and PKL 10000 must be inserted Fill anti corrosion oil into air inlet port and activate short term Always use ear protectors when operating the pneumatic impactors CAUTION PKL 2100 PKL 5000 and PKL 10000 transport protection The PKL 2100 PKL 5000 and PKL 10000 are delivered with a transport protection under the unit The transport protection consists of a plate of corrugated card board and two p2. are possible The actual air pressure set on the regulator must not exceed the optimum pressure by more than 1 bar maximum pressure Frequency of impacts A maximum of 10 impacts in a row at an impact frequency of 15 impacts min and 180 impacts h This impact sequence must not be exceeded Ambient temperature 20 C to 60 C HT version 20 C to160 C The admissible ambient temperatures must not be exceeded or fallen short of during operation Higher operating pressures and temperatures are only possible following consultation and written permission from Netter GmbH application engineers Type designation The type designation of PKL impactors has the suffix 3 4 5 or 6 These numbers are derived from the optimum Operating pressure i e the PKL 740 4 works most effectively at a pressure of 4 bar Operating time The technical performance data will change in the course of the operating time wear Dimensions PKL 190 PKL 190 AZ PKL 450 Noise level Preferably the PKL should be installed with the EE kit This reduces the impulse rubber hammer effect With this kit the noise level is around 75 dB A individual sound event Depending on the impact sequence the continuous noise level is below this value The sound emitted by the PKL can be dampened by a cover upon request This only makes sense if the impacted sheet metal is also dampened e g by heat insulation material PKL 740 T
3. CE These operating instructions apply to Netter GmbH www NetterVibration com Germany Fritz Ullmann Stra e 9 55252 Mainz Kastel Tel 49 6134 2901 0 Fax 49 6134 2901 33 info NetterVibration de NetterVibration IN A Assembly and Operating Instructions March 2014 for Netter Pneumatic Impactors Switzerland Erlenweg 4 4310 Rheinfelden Tel 41 61 8316200 Fax 41 61 8311291 info NetterVibration ch PKL 190 PKL 450 PKL 740 A No 1468E Page 1 24 PKL 2100 PKL 5000 PKL 10000 Poland Al W Korfantego 195 17 40 153 Katowice Tel 48 32 2050947 Fax 48 32 2051572 info NetterVibration pl Contents 1 GENERAL NOTES 2 SAFETY 3 TECHNICAL DATA 4 DESIGN AND FUNCTIONING 5 TRANSPORT AND STORAGE 6 INSTALLATION 7 START UP OPERATION 8 MAINTENANCE REPAIR 9 TROUBLESHOOTING 10 SPARE PARTS 11 ACCESSORIES 12 DISPOSAL 13 ENCLOSURES Scope of delivery The PKL are delivered with the following components as standard e Pneumatic impactor PKL e Operating instructions e Packaging For changes to the scope of delivery please refer to the delivery note 10 11 12 20 21 22 22 23 24 24 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 Com pare the scope of the delivery with the deliv ery note 1 General Notes Info
4. after the mist lubricator has been adjusted and is functioning correctly the device is ready for operation Impact frequency Max 10 impacts in succession at an impact frequency of 15 impacts min and 180 impacts h CAUTION This impact sequence must not be exceeded Regulation of Impact Frequency Regulation of Impact Strength PKL must be used for clocked operation only The impact strength can be reduced by lowering the pressure exception ST kit Throttling the air supply via a throttle cut off valve etc will not reduce the impact strength but will delay the charge time with ST control In a PKL with ST control the impact frequency can be regulated by means of the throttle without ST control The impact frequency must be regulated using an external control e g with a 3 2 way valve and a Netter electronic timer AP Check list for start up 1 Check hose connections before opening the compressed air supply 2 If required set the desired impact force on the pressure regulator does not apply if ST kit is installed 3 If the ST kit is installed the frequency can be regulated using a throttle Do not set faster than necessary service life noise pollution 4 Adjust mist lubricator if existing 5 After 1 hour of operation the compressed air lines attachment and fastening A screws should be checked and tightened if necessary After this the 1N attachment and fastening screws and compressed a
5. ery where they are used to knock off stubborn residues from walls to evacu ate residues from weighing containers and to prevent bridging and rat holing as long as the material remains capable of flowing Any other use is considered improper use There are no built in safety devices Qualification of the personnel Assembly commissioning maintenance and repair of the impactors must be per formed only by authorized qualified per sonnel Any handling of the pneumatic impactors lies within the responsibility of the operator Accessories which ensure the correct op eration and safety must provide a protec tion type required for the specific use Netter GmbH does not assume liability for damage or injury resulting from technical modifications to the product or failure to observe the instructions CAUTION and warnings in this operating manual Source of danger Faulty hose connections Possible consequences of non observance A pressurized hose coming loose can cause severe injury CAUTION Avoiding the danger The hose lines must be securely connected This must be checked at regular intervals and the screw connections have to be retightened if necessary Source of danger PKL impactors work with compressed air injury CAUTION Avoiding the danger Ensure that the compressed air is shut off from the supply lines when working on the PKL Source of danger Possible consequences of non observance A press
6. f several PKL 740 Parallel operation of several PKL 740 is prL 740 CRY possible with just one control and one valve a 5 In this case the overall length of the air pa 740 T supply line must not exceed 50 m 4 Installation with ST kit With an ST kit 7 the PKL continues to strike as long as pressure is applied The PKL can then achieve an impact frequency of several impacts second This maximum impact sequence must be reduced to the max permissible impact eii sequence e g using a throttle valve 6 4 TT installed in the air supply line TT A PKL with ST control 7 can be activated using a 2 3 or 4 way valve 5 even if it is mounted at a greater distance possible up to 50m If a Netter electronic timer AP 4 is used the PKL strikes several times during the duty time Installation with coupling to other functions If the PKL 740 is fitted with an ST kit it AN can be coupled to other functions without having to use a control or pulse generator The adjoining illustration shows the coupling to an opening cylinder 8 on a weighing container The impactor is not activated Once the flap is opened the impactor will strike at the frequency set by the throttle as long as the flap remains open 18 Recommended cross sections for valves and hoses Control lines control valves Main air supply NW 6 x 1 Use NW 6 for connection of the control valve to PKL and do
7. ions and descriptions in these operating instructions The manufacturer does not assume liability for damages resulting from e failure to observe the operating instruc tions improper use unauthorized repairs technical modifications use of inadmissible spare parts Translations are made to the best knowledge WNetterVibration does not assume liability for translation errors even if the translation was made by us or on our behalf Only the original German version is binding The following instruction and warning symbols are used in these operating instructions referring to a possible risk which if not avoided can DANGER result in death or serious injury referring to a possible risk which if not avoided can CAUTION result in serious injury and or equipment damage CAUTION referring to a possible risk which if not avoided can LOOSE PARTS result in serious injury or equipment damage IMPORTANT note with especially useful information and tips ENVIRONMENTALLY FRIENDLY DISPOSAL refers to the obligation of an environmentally friendly disposal Information on the PKLs Netter pneumatic impactors series PKL Special features comply with the EC machine directive e high impact force 2006 42 EC e low air consumption e reduced noise level due to elastomer In particular standard DIN EN ISO 12100 insert has been observed 2 Safety Designated use Impactors are intended for assembly into machin
8. ir lines should be CAUTION checked at regular intervals generally once per month and tightened if nec essary 20 8 Maintenance Repair Before starting inspection or service work shut off the compressed air supply and protect it against unintentional acti CAUTION vation The drive medium must be clean filter lt 5 um class 3 Unfiltered compressed air leads to high IMPORTANT Wear blocked silencers or complete break down of the impactor The maintenance intervals will be shorter Filter recommended Maintenance schedule Maintenance must be performed on a monthly basis Screw connections should be checked and after one NBS kit hour of operation after first Commissioning and then at regular intervals Screw connections should be checked and if necessary tightened and secured with Loctite after one hour of operation after first Commissioning and then at regular intervals After a maximum of 500 000 impacts a comprehensive service should be carried out during which all seals and guide rings should be replaced Check for kinks and ensure that the lines are free from Air supply lines obstructions If necessary clean the hoses and remove kinks Silencer Clean and check function Screw connections Check total number of impacts DANGER Check impacts Check function Make sure that mist lubricator works correctly contents decreasing Number of drops h Refill oil Filter of the main
9. lastic fasteners It pre vents the impact plate to fall off during the transport and must be removed before the installation Please pay attention that the impact plate and the damper plate keep their position as they are to be mounted together with the impactor undamaged If there is any damage inform the shipping agent Compare the scope of delivery with the delivery note The packaging protects the unit from transport damages The material of the packaging has been selected based on environmentally and _ disposal friendly aspects and can therefore be recycled Re cycling the packaging reduces raw material consumption and the waste volume The storage temperature should be between 30 and 60 C This does not apply to the operating temperature F T me RR 7 T F L IL i E Ce plate of corrugated card board plastic fastener 6 Installation Ensure that the compressed air supply is switched off during installation or when working CAUTION ON the impactor and air supply lines Pneumatic impactors PKL 190 PKL 450 and PKL 740 are open on the impact side Ensure that the impact piston remains in the housing during installation CAUTION weld on console weld on console plane round NetterVibration provides suitable fastening devices for mounting the impactors PKL impactors are screwed onto plane stiff ening profiles weld on consoles or welding plates 0 1 mm flatness Weld on console
10. nds has to be adjusted at the AP 4 For shorter lines these times can be reduced ac cordingly e g to 2 3 seconds Example PKL 2100 15 Installation of several PKLs It is possible to operate several impactors in parallel with just one control and one valve The length of the connecting lines from valve to the PKL must not exceed 1 m otherwise the control piston or membrane in the unit will move too slowly and not reach the sealing final position The 3 2 way valve 3 can be installed at greater distances from the impactor if additional 3 2 way valves 9 are used If several PKLs are operated the overall length of the air supply line must not exceed 50 m Example PKL 450 Installation with ST kit With an ST kit the PKL continues to strike as long as pressure is applied The PKL can then achieve an impact frequency of approx one impact second This maximum impact sequence must be reduced to the max permissible impact sequence e g using a throttle valve 6 installed in the air supply line With an ST kit a PKL can be operated with a 2 3 or 4 way valve 3 even if it is located at a greater distance up to 50 m The length of the connecting lines from valve to PKL must not exceed 1 m otherwise the control piston or the membrane in the unit will move too slowly and not reach the sealing final position Examples PKL 450 and PKL 2100 AP 116 4 FE 16 Installa
11. ng the danger When working in the noise area ear defend ers are required if the sound level exceeds 85 dB A Preferably the PKL should be installed with the EE kit 3 Technical Data Force of Optimum Air consumption Overall Suitable for impact operating impact weight wall pressure at optimum pressure thickness of bar Normal liter kg kg PKL 190 4 0 19 043 40 009 08 1 2 PKL190 6 0 19 060 60 014 08 1 2 PKL 450 6 0 44 092 60 078 16 1 3 PKL740 6 074 270 60 054 26 2 4 PKL 2100 5 2 10 620 50 193 69 3 5 PKL 5000 4 496 660 40 150 160 4 8 PKL 5000 6 4 96 1060 60 220 165 6 12 PKL 10000 6 10 00 17 50 60 260 340 The impact force corresponds to the impact of the indicated weight falling from a height of 1m IMPORTANT Kp C2 01 01 AAAA Admissible operating conditions Drive medium Clean Filter lt 5 um quality class 3 according to DIN ISO 8573 1 lubricated compressed air or lubricated nitrogen Lubrication Fill mist lubricator with acid and resin free pneumatic oil ISO viscosity class according to DIN 51519 VG 5 to VG 15 Recommendation Kluber AIRPRESS 15 for temperatures up to 60 C Operation in a dusty environment is possible In consultation with NetterVibration the PKL can also be operated without lubrication Operating pressure Operating pressures between 2 5 bar and 7 0 bar
12. not exceed a length of 15 m For simultaneous activation of several PKLs greater cross sections have to IMPORTANT be used for the main air supply line For the activation of several PKL the total length of the compressed air supply lines must not exceed 50 m Check list for installation 1 Consider expected operating temperature 2 Install main cock and maintenance unit filter regulator as required valve and supply line 3 Mount weld on console if necessary 4 Install with fastening set NBS Secure fastening screws and air supply lines with glue e g Loctite 5 Install PKL 2100 PKL 5000 and PKL 10000 with damper plate 6 Observe information on hose length and nominal width 7 Secure the unit against falling down 19 7 Start up Operation Lubricated compressed recommended for PKL impactors LE Fill mist lubricator with acid and resin free ian pneumatic oil ISO viscosity class IMPORTANT according to DIN 51519 VG 5 to VG 15 Recommendation Kluber AIRPRESS 15 for temperatures up to 60 C When selecting the lubricator bear in mind Units with 1 8 and 1 4 connectors are that the air consumption of the PKL is very recommended Larger units may not low The selection of the lubricator is respond dependent on the number of impactors to be Set to the lowest number of drops operated at the same time ATTENTION Adjust the number of drops with the unit running IMPORTANT Only
13. rmation on the operating instructions Use and storage of the operating Instructions Before use of the pneumatic impactors of the series PKL read this operating manual carefully It is the basis for any action taken with regard to the PKL and may be used for training purposes The operating manual should subsequently be stored near the PKL Target group The target group of these operating instruc tions is qualified technical personnel from the mechanical engineering sector who have a basic knowledge of pneumatics and mechanics Installation commissioning maintenance fault elimination and disassembly of the PKL must only be performed by persons who have been instructed in the proper handling of the units Persons who have not been instructed accordingly must not carry out any works on the PKL Copyright This documentation is subject to copyright All rights e g for translation photo mechanical reproduction printing or reproduction e g data processing data carriers and data networks of this operating manual or parts thereof are strictly reserved to NetterVibration Limitation of liability All technical information data and instruc tions on installation operation and mainte nance in these operating instructions are based on the latest information available at the time of printing and take into account our past experience to the best of our knowledge No claims can be derived from the infor mation illustrat
14. s can be welded directly to the container walls Weld on plates have to be welded on stiffen ing profiles or on previously mounted inter mediate layers 1 5 times the sheet thickness of the container The assembly of the impactors is then made with NBS kits to these devices NBS kit The mounting kits NBS are used to secure the permanent fixing of the impactors The damper plates for PKL 2100 PKL 5000 and PKL 10000 as well as the NBS kits are mandatory intermediate layer mandatory NBS kit weld on plate G for threaded holes D for through holes PKL 190 NBS 190 PKL 450 NBS 450 NBS 740 NBS 740 DorG NBS 2100 NBS 2100 D or G NBS 5000 NBS 5000 D or G NBS 10000 NBS 10000 D or G PKL 740 PKL 2100 PKL 5000 PKL 10000 Please observe the instructions supplied with the NBS kit IMPORTANT d 2 PKL 190 and PKL 450 with NBS The PKL with ST kit is first attached to the NBS and then the lower ST screws are mounted Example PKL 450 Dampening set NBS 450 EE kit for PKL 190 PKL 450 and PKL 740 A spacer plate with a replaceable elastomer impact plate and O ring is installed between impactor and mounting surface See Assembly Instructions for EE kit Example PKL 740 PKL 2100 PKL 5000 and PKL 10000 The piston hits against an impact plate The air channel is integrated in the housing The exhaust air escapes into the atmosphere via the silencer A 3 2 way air
15. ses between the individual impactor sequences must be long enough see chapter 6 For compressed air supply working air pilot air in various qualities and dimensions Way valves Electrical pneumatic manual Throttle valves For cycle control on PKL with ST kit Maintenance units Filter regulator with pressure gauge mist lubricator ST kit Hose material and fittings Netter electronic timers Electrical also for special voltages or pneumatic controls For round and rectangular containers also for use on insulated Weld on consoles containers funnels etc Vacuum fixing devices quick clamping devices Noise reduction Noise protection hoods covers EE kit For quick relocation on containers etc Safety suspension Clamp with steel rope and snap hooks Netter start control For long supply lines gt 15m i Flanges with different dimensions available High temperature Special versions versions Further information on request 23 12 Disposal The parts are to be correctly disposed of depending on the material Material specifications PKL 190 piston springs PKL 450 piston springs PKL 740 Steel piston springs housing pilot piston distance plate EE cover housing distance plate EE cover housing Aluminium distance plate EE PTFE PU VITON NBR Spring guide ring stop seals seals membranes Valves Brass Plastic Aluminium Stainless steel PKL 2100 ST
16. stons PKL 190 pistons General wear Housing membrane Replace affected parts and and control piston seals worn No function PKL not mounted Check fastening Tighten fastening screws or with leakage correctly screws replace if necessary on the mount ing surface Mounting surface not Check mounting Ensure mounting surface with flatness error 0 1 mm surface Check O ring Insert O ring into the groove and replace it if damaged No function Operating pressure Check unit type Increase pressure with ST kit too low Check pressure Weak impact Air supply Check pressure Adjust pressure Control valve soiled Check control valve Clean control valve or replace if necessary Silencer soiled Check silencer Clean silencer Wear leakage Replace the seals 10 Spare Parts When ordering parts please supply the following details 1 Required quantity 2 Description and position of the spare part 3 Type of unit 22 11 Accessories The following accessories are available for the pneumatic impactor PKL upon request Description mandatory NBS kit G for threaded holes D for through holes PKL 190 NBS 190 PKL 450 NBS 450 NBS 740 PKL 740 NBS 740 DorG NBS 2100 PKL 2100 NBS 2100 D or G NBS 5000 PKL 5000 NBS 5000 D or G NBS kit NBS 10000 NBS 10000 D or G The mounting kits NBS are used to secure the permanent fixing of the impactors When using this type of control the pau
17. te Empty filter if necessary clean wash out filter insert or nance unit replace filter insert Mist lubricator The maintenance intervals largely depend on the operating period and the cleanness of the drive medium Especially in units driven by oil free and or dried compressed air increased friction can create deposits which will slow down the function If this is noticed performance loss or even standstill the impactors should be LS cleaned and the sealing and guide rings replaced if necessary The IMPORTANT maintenance intervals are reduced Cleaning the impactor When cleaning the impactor it is necessary to remove and clean the piston In case of wear the guide rings and piston seals must be replaced A special tool is necessary available upon request to insert the piston Alternatively maintenance repair and comprehensive servicing can be carried out by NetterVibration 21 9 Troubleshooting ee Troubleshooting Mounting surface not Pressure loss via Ensure mounting surface poling plane O ring with flatness error 0 1 mm Malfunction of valve Check impactor Check 3 2 way valve and and control without valve and control replace if control necessary Air supply Check pressure Adjust operating pressure Check valve switching Replace valve if necessary No function Seals are worn Check seals of Replace seals on the with leakage knocking and control knocking and control from top pi
18. tion with coupling to other functions If the PKL 740 is fitted with an ST kit it can be coupled to another function without having to use a control or pulse generator The adjoining illustration shows the coupling to an opening cylinder 8 on a weighing container The impactor is not activated Once the flap is opened the impactor will strike at the frequency set by the throttle as long as the flap remains open Example PKL 2100 Installations for PKL 740 Standard installation The PKL 740 is the only PKL with integrated 3 2 way pneumatic valve in the valve head Upon switching of the valve the piston chamber is ventilated and exhausted and the impactor is striking The impact sequence can be determined by a Netter electronic timer AP 4 Electric and pneumatic controls are available on request The main air supply is constantly applied to the valve head The control line from the activation valve existing on customer s site 3 and the impactor can be very long e g 50 m In case of long supply and control lines the charge time of the impactor can take several seconds If the compressed air lines are long e g 50 m a pause and duty time of at least 5 seconds should be set on the electronic timer AP 4 If shorter lines are used these times can be reduced accordingly e g to 2 3 seconds 17 PKL 2100 Gur N n Urm 1 PKL 740 TA i Boom lt AY a p Installation o
19. tube impact plate impact piston springs PKL 2100 outer tube Reducer top cover flange impact plate impact piston springs S PKL 5000 outer tube Reducer ST tube ST plate ST connecting angle inner tube impact plate top cover flange impact piston PKL 5000 S outer tube top cover flange Reducer ST tube ST plate ST connecting angle inner tube impact plate impact piston springs PKL 10000 outer tube inner tube impact plate top cover flange i impact piston springs springs inner tube outer tube reducer top cover flange ST Ring ST plate seals dampening rings dampening plates impact plate EE Alumini um inner tube seals dampening rings dampening plates impact plate EE seals dampening rings dampening plates impact plate EE seals dampening rings dampening plates impact plate EE seals dampening rings dampening plates impact plate EE PTFE PU VITON NBR Valves Plastic Aluminium All units can be disposed of through NetterVibration The applicable disposal prices are available upon request 13 Enclosures Additional information available upon request IMPORTANT Leaflet No 27 PKL and others Enclosure s Declaration of incorporation scan ia 24
20. urized hose coming loose can cause severe Pneumatic impactors are not mechanically closed on the impact side SANSER Avoiding the danger The impact piston and or impact plate are loosely mounted Possible consequences of non observance Falling parts can cause injury or material damage Ensure that the impact piston and or impact plate remain in the housing during installation and disassembly DANGER A CAUTION Source of danger Impactors parts of the construction and air connectors may become loose due to vibration Possible consequences of non observance Falling parts can cause material damage or injury Avoiding the danger Screw retention devices and or Loctite or similar are to be used Screwed connections and air connectors should be checked after 1 hour of operation and then at regular intervals generally once per month and retightened if necessary For attachment of the PKL only Netter fastening sets NBS which are included in the scope of delivery must be used In addition PKL 2100 PKL 5000 and PKL 10000 must be mounted with a damper plate In critical installation situations it is required to secure the impactor with a clamp and steel rope Source of danger In the vicinity of the impactor or structures connected to the impactor the noise level can exceed 85 dB A Possible consequences of non observance Human hearing can be permanently damaged by the high noise level Avoidi
21. valve is required if the con trol valve at the customer s site is mounted at a distance of more than 15 m from the PKL EE kit If the impactor is fitted with the EE kit the steel impact plate with damper ring and O ring is replaced by an elastomer impact plate with O ring These impactors must always be in stalled with impact plate and damper plate included in the scope of delivery 13 PKL 2100 Ky Impact plate Damper plate PKL 5000 Ni ST kit for PKL 190 and PKL 450 In this case a 3 2 way valve with air supply to P is required The ST kit connects the control port with the piston chamber The impactor strikes as long as air is ap plied to P See Assembly Instructions for ST kit Example PKL 450 ST kit for PKL 740 The ST kit connects the control port with the piston chamber The impactor continues to strike as long as compressed air is applied In this case only one air supply line is re quired see Assembly Instructions for ST kit Attention For installations with automatic control ST the silencer must be screwed on to the air supply ST kit for PKL 5000 The ST control connects the control port with the piston chamber and is integrated in the PKL In this case a control valve has to be mounted onto the PKL The control valve is internally connected to the piston chamber The impactor then continues to strike as long as compressed air is applied See As sembl
22. y Instructions for ST kit The impact sequence can be set by means of a throttle optionally 14 PKL5000 BOS Installation PKL A cock valve 1 to shut off the main line and a The maintenance unit should consist of fil maintenance unit 2 are recommended for all ter regulator and mist lubricator see chap installations ter 3 Technical Data Drive medium BE wz Connect the hoses of the PKL as shown on the pneumatic circuit diagrams IMPORTANT Installations for PAL 190 PKL 450 PKL 2100 PKL 5000 and PKL 10000 Standard installation A 3 2 way valve 3 must be used for the control Upon switching of the valve the piston chamber is ventilated and exhausted and the impactor is striking The impact sequence can be determined by a Netter electronic timer AP 4 Electric or pneumatic controls are available on request The 3 2 way valve 3 can be installed at great er distances up to 15 m from the impactor Examples PKL 450 and PKL 2100 Installation with long supply line The main air supply is constantly applied to the 3 2 way valve 9 at a distance of max 1 m from the PKL The control line from the actu ating valve 3 at the customer s site to the im pactor can be very long e g 50 m The charge time of the impactor can amount to several seconds in case of longer supply and control lines For longer air supply lines e g 50 m a pause and duty time of at least 5 sec o
23. ype A B mm PKL 190 G 1 8 NW 6 163 5 169 5 P x 1 G 1 8 NW 6 x 1 G 1 8 NW 6 x 1 FL ca germ ry mm mm mm G1 8 NW6x1 90 0 163 5 90 0 192 73 5 PKL740 90 with Bausatz EE PKL 2100 PKL 10000 PKL 5000 a a aa ale mm mm mm mm mm mm mm PKL 2100 120 1380 17 13 0 G1 8 NW6x1 152 300 5 PKL 5000 114 3 180 22 17 0 G1 8 NW6x1 152 376 5 PKL 10000 145 220 25 17 0 G 1 8 NW6x 1 4 Design and Functioning The pneumatic interval pneumatic hammer Compressed air P flows beneath the piston C and pushes it against one or two springs B Upon exhaust the air chamber below the piston is emptied all at once The piston C hammer is shot against an impact plate E by the springs and the plate transfers the blow F If no impact plate is used the piston hits directly against the mounting surface In the standard versions the impact plate is always made of steel and can be replaced by an Elastomer impact plate The air is evacuated via the silencer A The unit is attached via flange D by NBS kit Pneumatic impactors only work after assembly since the piston chamber is then sealed by an o ring installed in the contact surface impactor is a ST kit The ST kit permits a continuous impact se quence with permanent compressed air supply 10 Special feature of PKL 740 without illustration
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