•

"The bottom line is thatcom~urs >re ""!,,,lIsiv..:

"y' raul Calabretta of Dairy Conve)"or. "Whenthq go down, the plam go~s down.lt·s nor thatrh~ conve)'or is an eIp"nsive pi",~ of ~uipm~nt;it', rhar ir ean rost a plane a lor of mon",.. wh~n aeom-q."Or isn'r funetioning, bo.:au", norhing d", isrunning rith"r."

·Withoor a eom~"Or. th~ producr isn't going any­whete· adds Barr)' Vosh"ll dir<oeoor of marL:eting andbus in"" d",."lopm~nrfor Carnbtidg<' Intmlational."That ..id, rom")U" do rend to Il<' kind of an af(tl­rhooght at a lot of plants. Th" bi!!&"r. roo", apens;"..,pio:~s of ~uipm"nrg~r mosr of th" 3tt~nrion.Burwl,.,.,)our plant g<>l's oo...n btc>'-'"" a Ill--ft so:cion ofromryor isn't running~', then all ofa ,.,<!den~ron'""l'"Or is the mosr importanr thing to th~ CEO,·

Ro~rt Louis S{....~nson. the Scottish author.'" 'aid to hove wri~1I1h..., words: "To tr:,,~l

hopefullyil a b.~r thing than to arrh...:butin fuod plants. d..tinations usually tau preceden'"onr journep. If', natural: A S1 million cooking'y't<m or a 1250.00J pacbging machine or a hu~spir:ll f=ur tend, to command .(~ntioll.~ ron­Y~ing 'plem, UsID to bring products-in-process to

this l:ind of e:I~r.si~. behemoth m."hinery sttmpuny and murx!a". by rornpari""".

But conveyors.", the .rter;es of food plants.the avenues and toul..nrd, thO! connect the ,it.lfunction,. And jut like human art<,;es, a dean,

dficient cOll\'e)'ing .ystem e,ublishes the o"rrnllhealth of the 0p<l\I.l;on: a wuk system puts then>ti"" plant at risk.

St.... Bjerldi. I Coottbutiag Editor

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""ason for I""'r bdt sanitation-it c.ndri,'e up d~.ning rom .nd signitk.ntlyinc ..... '" th~ probabiliC)" of food ,.f.typrobl~ms""'~~ Gar)' La""n. fOod ,.fftyconsultant.t Im<alox. "Taking romrolduring th~ d~sign proc.ss--bdo.... theinst.lIation of. new or retrofinro ron­~or 'ystem----1s the best approach ro th;.;problem. Taking Into .CCOUnt 'he toI:l.lrost of ownership, .nd purd""ing a ron­~ing s~~t~m ,hat ...iIl supply the bigg~"

rerum in terms of d..nability and foodsmty. rnth~r than forosing 011 the Io....estup-from rosts. is the solution to iml'fO'ingth~ bottom li"",."

Fortunately. equipm~nt m,nuf.ctur­.... tod.y pay much closer al{~mion tothe tot.l process, with an eye fur mal:ingimprovem~nts in {h~ .rea of hygi~nkrollW}'\)r design. "In the past. poor ron­

"",or d~sign meant both hygi~ne andsafety chall~nges for food processors.Closed constfUccion left critic.l ar..sin:IC",ssibl~ for cleaning; open gaps p""­,~ntro finger traps." Lars~n cominues.·B~tteroptions a... now available to help

food processors and pacurs ""ceed their

lLl'I

"What. lot of po:>pl~ do,,'c =liz~ i,that me output of the con''1'ing systemI' the ompur of the plalll," commentsAmy DeFayette. product manager atBosch Raroth. "Think of the com'~"r

as the eritkal linl.: ~twttn oper:niomand integrating it into the flow of thewhol.. opuation. not just as a [ink tobring product from poim A to point B."

EY"'Jone 0=1, rollY~'ors, but no one!mo',,", how important Ih<y ...., untillheyb~ak,sal's Mart)'Tabab,director ofsalesfor the Am...-i= >1 Ashworth Brothers. aco'l'",,}ur bdt manuf.ctu"',. Acrording toTabaka. processors want mote tbfOOJgh­put. a S)~lem that is alwaJs c~.n and oneth,t never bre.b. "In oth..,. .....,rds,· hesays. "the I"'rkrt piece ofequ;pmffil.·

0"" rommon romplo.int about ron''"Y"or sys~ms is that thq.•,.., difficult to de.'lI.

"I\:oor rom-q."r design ;.; th~ numb<-r 0Il~

AII~r•• lt. abon floor IInl, tbedri.,. Ihoill for IhillDn¥eyor .f1erdear Gtlan lor IIIlillelalKe andwasbdown. SOUrcl: hllh llu.rolL

TM rotatilg proportional gote nvotltioliIed IOQVlyilgto 1l11tiple palkaglrl. Soml: Hoot aid enllra1.

hygi<1le.nd safeT)' stmdards. The ke)' is rustomiz.tion­offering complete solutions, rather than just con\'e}"rs orOOI1'"'1"'or belts."

Thinking holisti<ol~'

"E,,,ry plant wants to grow. no one ·.....nlS to shrink theirbusine","emphasize, Dan Gulick. presid<1lt ofAm~icanCom,,)"Or. "So how ale ~ou going to plan for the fle>;ibilityth.t growth requires, If ~"" don't tbink .bout that now.you'U ntd up s!"'ndiag 2(}-JO% more on mnYt"J"ing sys­rems th.n ~"" should."

Com"}ors do more than mo,... product. Tht"J"· controltlow and, when laid-out effidently, <on mitig.te theeffects of pinch-poines and bol1lenecb--p.rticularly.t....."ighing .nd blending points. "The !",rformance of.ronYt"J"ing S)"'Stem is dq>"ndent on ....."ighing and bl<1ld­ing. \ Vhere do you v.cigb )our product .nd whe.... do youblend it? The an",""","s to those questions win determineyour appro.<b to com")'ing," sap D.vid Boger. productm.nag<'r at Fbkon.

"More and mo.... the'" d.~... processors.re being os~to do more with less.Th.t purs • lot of pressure on a ron­''')'ing s)"Stem. whkb a lot ofplant m.nagers think ofonlyin terms of s!"",d-faster and faster." adds Rich Gnm­th.m, North Amerk.n food segment man'g~ 01 ForboSiegling,. belt manuf.cturer. A pro!",rly ntgin""red andlaid out ron''')'ing sptem f.ctors in food safety. mainte­nance, flow, acressibUt~, and tl<::Iibility.

"Try to look at tHs holistic.lly." sap Gulick. "Howmuch does the product weigh? What's going to happento it on tbe conveyor--will it be rut or moved or seasonedor weighed? Do I "ally haye to build cu""s into theron''')'or ro m""e product from this poInt ro that point?\Vhat's the most efficient flow design as well os the mosttlo:ible .nd acre"ible? Whe.... ore the inpurs and outputs?\Vhere are your mntrol p.nds. your forklift lanes, )Our<leaning equipment?'

In a poorly designoi cony'1"" la~"ur, he adds, "m., ded­sions .....".... made from the standpoint ofm., macbines. Notto disparage anyone, but ma<hine suppliers don't re.Uy!:noy.. rom")",.. Wdl-desigoed «>rIVe)'ing sysrems alw.)..begin from the standflOint oftlow and throughput."

The logical approachJust os technologk.lde-... lopment h.s imp""~ a plant'slarger. shinier piece, of equipment. com'eying systemshne undergo"",,. quiet revolution in ....cent ye'.rs. Underpressure to impron the food-safety features of theirequipmntt .nd at the s.me time enhan"" throughput andsmooth plant flov.·. conveyor and belt manufacrurero h.."c....ated a new generation of mllV"<"J"ing s)'Stems that in

some wop m.ke the fl.shy. ""!,,,nsh.. breaders, sruffe....blenders. "'''''s, freezers. bagg~s and packaging machinestht"J"'com",ct with seem like the old-f.shioned machinery'rather than the oth~way around.

"\Ve\" Sttn big changes from. logic srandpoint----wekttp linding more and mo.... applkations in <on\'e}'ingS)'stems for load cells, whkh can tighren flow .nd over­all o!"'ration." sap Eric Onem. product line man.~r atPPM Technologies. "The", ""US allow for proportionalflow. which "",Ill' streamlines distribution inside the plant.The u,' thing is not to o"efl"helm the pinch-points in anoperation. Sc.les and baggers .re the tradition.l pinch­points where things can slow down. A good cOllV"<"J"lngS)'stem brings product to those pinch-points at an e"en.nd steady rate v.ithout <",.ting a backup----proportioningflow backwards through the o!"'ration so that the flowruns the operation ram.,r than m., pin<h-points."Tlut canbe <OUI1ter-intuiti".. for some operations, he note,. wh=increasing throughput is a1W:l}" the go:ol "Slowing down toimpro,... flow seems like taking a step backw:ml." he .dds.

'Vith proportion.1 flow. sa)" Onem. )'ou're not ..... U)'slowing down; )ou're allowing the system to judge howf.st it nms to go for maximum effidenc)'. Speed .ndeffidency should not be confused. he points out. "It'seffiden')' that y"u w.nt. If )"u\" got • super-fast S)'stemthat reaII)' <ranks stuff through. only to h.." it back up 01the bagg~ or «ale. )'our effid<1l')' goes out the window..nd it can ....ind up costing a lot of money."

Food and beverage plants s!"'nd. tremendous .mountof mon..y on pa<kaging .nd pacbging equipment. Ifprocessors want fuU utilization of that equipment. th")'

Design for growth

W,llloil.. <Il "",,ying ,,'10m, ,haro ,,,.or,l "1lVIlO' I,,,g. foot"..,"'Y '''''''l''t>l

"port, Thoy'.. o!~~toT m 'trea~li1od. without,,1l'IpIio1td "Ira <boll"h, d~.liOl"!\ ,rOJ dhhoct,.11"',, Q«tl,ibl. for.OlI ,I m,~t"a",. and"poi<. Tlloy'ro ,ppro~ct" with tho rilll! bolilg fort!lo n~t "od'd koJ fl"',, dtlipd wil!1 ...,'Oth,nd flui!;I,!y i. mM. '0. Ila, Ono, tho .,.'1'"""ii>! 1..1 good, bol" , ,Iont groWl, tile <0,'

..,." ,,/d..~ oro go...g <>'1 .... , tho pil"," lOY'SI... fnpwrnan, dml" cI ~,.I.ori"ll II:< H<lvM""••" ,lostt" dimt><. 'The bo,t <ylto!1' do,'!1.lIlh.. Jlid...yOl ttJo ~mt grow,'

WI" ~n"n~, now """'\'1'g .y,tom. "porls001."" tI.o fol~...",;

• .....Ir. rop, tlii.., fro., ,rOl'odi" ,.....,.,lfppt~" h..." Ih yboli'ri,,", "I loop I"., of'lIIml"""t~n 'porI. "1.1", ml. IIJIO tho "'I'~~r

~Dl '<1"'1 ~~i"nOll "'I '!1g".."ng depart·",,,t,· [01\11.-1, DOI'id Iloll" 01 FJui,...._'be,,,,,,....y~''''t ~ dlfor..,t"• 'look <i tho syllon 01' .ho~, I'IOt Dl nliriJucI,ompo"'"l'," 1I0t" j",n lwotl" hy O.Fay·olr•. "Whot ,,01:;.. a good ,o''''1Or '"f,lon I, 'I',Ie"i,"~atlo.:

• 'II., 'i"'ll, ",",t i"""tant inf,,~at~n tnati' roq,iroj fl.n a ,wanor;, "nplot, productj,t~I,: odj, 1m, Moug", a 'V,t,,. int,~at"

..rrh U( l.uta~atM Sy,t"",. 'In" i"lod" ph,.t'1a~ am IOnpl" <I al ,rad'<1,!hat oro 9'''lta bo 'onvopd. AprajllCt mtrl, 1<1>10 with prajllClI",r~ti., (tono" SlUl, Iongth, ...fII, ~.I~t,

"t" WO'# "l ,';"tatlo. i,.~~,od. A.ctM.l"lf'd" il 10 il"ti!y il tM 1o..I,f ''''tr~ in1o'lralio.Ito,,g,,,,t tn. '"fIl,n. II thor" ltpOrat, ,,,tro5

'f'I" pr,..Jo"" .il1l. '''''I'''' i'logrei" "'P'p~ itI.wn ''''lrol'1It",,1 ~OI1h, plori 'landard­i...d on aspodfi, "rirol ,lari,,,, cni deYi",? Howwil tM nei,,,,1 ncni~'ng 'y,t.. neoj t, ilt.,fa"wilh tn, nOltor ,,,tr,I,y,t,m <111 ,tn" oqui,·mori i' n, 'f'lom? IIi< rn,,,,at~. lI.oJj <II b,p,lMdoj I"~I 11. "Imatlo. pr""':• ldently .,j ,tart f"m 11. ,I<I1t', "",n 'pora·Iioll-fryi.g. ,ool.nj, fl..ring, ~i,g, 'k.•"".11. ,mt I",atlon ,f <II oq''llnort !hat .ilbo ""'o<tod ~y tl, "n"yor,. "Don't roly on orchi­todlll<l draw:..gs,lI.y [I' ",~IIi~.. imuff'i"t fot

equlprn"t plac,nort," lOY' r,,1 (<I<Ilr,tta at Doiry(oo"yor. 'Do tn. ,.oolUrornon1'; .Hit" j,.n t,11. ~uarttr "do. Yoo na" t, In.. tn." mIIOlUI..

moll!! "odsofy.o f~" a no. ,la,t, ~<I1.n.ro thorrq« pia,.. 01 oqipmMt .11 bo laceiod, b,t loa"11. fira' ,mt I"at~n t, t~, '''''''lor 1Up'~'"

• N.lrirri" ,wrY" and dnm (on a ''''''yor t~ei

mom ''''t~••" adn., ;, n,,,,say ".ry 35 ft.I,n n."nll' 'POC' for ".at", and ""nt""",porscmol,• loop 11. .Lmb. ,f tranlf.,- prod"t novingfrom.no con"l" t, an't~or-t, a mi.imun.1r",for, co,,, pr,j",t jOll1OOl' cni "oot, doari"'lillUll: "'Y' FOlpornon,• A«ording t, B",h I"rotn, •• II·J,,,i!1'od ,.....'''I'' "I,t"", 1",,11.. dr~, choil, .. ",~11o eifloor Inol. But .."n.aj "'" ,<11 bo .... ,1. too,<I1l W, ,hon "ry a«Ol,iblo from ""nood .al·.ays cni 9"ll"a".• AI"" f" ,I'dr.<I,wil:n." door lW'ngs, forWfIono, ,nd por",,,,,,1 ingroll and '!1OS'.• M. lUI' n, bolting i' ~ropriolo for 11. ~b.s.~, bolt, con .itn,t"d "tting <I1j abra~on,:

,tn., ",1. S,~, bo~"g con ",dm tn, frilidt"'l""""" fnsjj, a ,p'alh,,,or <I1j co. aMcorry n,t product; 10. b,lt, con .itl,tanj ..ont.nporaturo,. Sorno loft, oro nun oo~. I> .aJ,down !han .tl.,. Sa~, bolting 'f'I""' oro <Ilrajodby ,,~, "j "Il"".

• "'" ei~ 0110 oxia lriYo rrdor" Mar.J for..,...gor:xy malo.,,,,, cni "",<loxia lob ,f d,o'"• VI,l!I01tfocillOl et prOl-pO<TM ''''''Yor wppIi'''."&0 an od",at,j ,,",mOl. D",'t 11<1., awisionwifho,.; lOO1r; ,f 11. n''''ei~.: Itr"'" Avi",',IIanJ Ioogor. ""rporf"", 1l"1'; you ~ trOl1l,:In, bill"t ~i,t,l, g,noral ""nail"" ""l, i'...J."fmlti.g 1tJo tolal 'Olt 01 a''''''yor '1Itom,... t" (alabr'tta. "lhoy f"" '" tl., 'Olt ,f t~.

""'YO", bot thei" .01 tn.ldf ,f ~. For "~"11. Mom'al ,,~ ;, typi<oI~ af~,iii'" flJn~,,­

at 10011. If b,i~"g tho syl10m il l'Oj t, i",,~,

"w,t, .,rI.,!hat', ,., ox""",,: (,",t,,,,ti,,,modli"Iio" oro 'XPO""", wI.h i,.-+rt w, i~,tOlt 10 ,,,,,,I,, ''''''yor ox,,,1';fro~ tI."t[l!."M,s! pr"""''' und.Olti""lo a "",ying 'V"t.m', ",t by 20';: (<labr,!!a ,,,,,Iuj,,, ""dtnat" c1w'l" fro,. nollooong.t al tI., r"uir"""t,0111. '1'lo~ from tI."tort.o

Polylret~alll btlting rlsisls cl'lKksollll abrasions, inproling lood 50111,b, mJawilg cOI1p1l1a ClVlnllJl dlrilgwasbdawn. SaurcI: MollldlSlrl".

neo:I ro cror.,:os much dlki~'KJ theR :ospo"ibk in t~nm of product tlow and I"""""sonnet obse"", Bb~ Sytjkovski. produccmanag~r.t H~c and Conttol, which in200') introducal the propottional ga", thot,~Yolutionized flow inro th~ paeb.ging.ro. "The tr:Iditional ga", was a straighcopen-dose 'ysr.,m. Th~ ptoportional gatemeasutes outflc",.. tor ~fficiency"he sors.ditecting product to difl'ete1lt p.cbgingmachines at the sam~ time. In a snac~­

chip operacion. what this means is thatdifferent seasonings can be .pplial at thesome tim~. with the ptoportional gar., con­,roUlng flov.' to dltkte'" seasoning Unes."1'ypicallr for a sna<:k-chip o!"'ratiOll. therdo • littl~ bit of r.,tipki, m.ybe a little bitof Cajun and tons ofbatborue. 'Vith theold gat~ system. th~ plant would hay~ torun either .n ~ntirdy separate lin~ for theoon-~product. producing in ,m.llbatch~s. or wait until the m.in lin~ wasdone with the baJbaue to run the ,m.ll­batch produces .fr.,r the """"nings in thes...son~r had bttn changed. \Vith thepropottionai g'"~, )'OU can run th~ m.inl'fOC"ssing continuously, .nd th~ gar., willdirect produ.et in the right propottions tosepar>t~ seasonttS.

Proportional flow offers otl= benefits.be,ides simultaooous processing: P,..,...,s­SOlS don't h",~ to worry about shuttingdown a line and doing • oompl~te w:lsh-

down when ""itching from one kind ofs~asoning that mar contain .ne~ns toanother th.t d""sn\. "Also, it m~.ns }"ucan now do :ill )'our packaging in one ""n­tral pacbging h.n. which is much morerllldmt," S'-q~o,'Ski .dd,. In th~ ~nd. heobserves. th~ neVI' gar., causo:! ~oors

to think about the dUd....cr ofOOIlyq.ingspt~m, dsewh~te in th~ plalll, drivingfurth~roo."lopmmt .nd illtlO,.lion.

Touchy..,.,nuioBelting, too. ha-; imp""...:! from signoonttechnological developm=t. For decades,f.bric helting, which is prone co fra}ingat th.. a1ges as wdl as stte1ching but ischeap tomanu~ .nd "'Pia""•...-.s thesundaffi, but then plastic modular beltingoffeted a no-stretch, no-frnr altemati,,,that also teduc~d weight. ch.nging thewar OOIlyq.1ng S}'S,ems could be Slnlcruredand supported .nd ,hm teducing their in­plant fuotprint.

Few thing', if anr. in th~ plalll rouchfood products mote chan ron'''}"" belts.This m.us sdeetion of • com~r sy"r.,mone of th~ most importalll duisions afood processor can make. Modular plasticbelting is simpl~ in de,ign and, ...ith itssprocut....nd-tttth dri'"s, vastlr improvestracking (Jl~ the old fabric belts.

Sill<" com")"" belting 'ouch~s productat so m.nr diffetent points in • process,ie's a kt)' demm' in. plant's fOOd-safety"'gim"". Indad, food sofel}' has forealp,oce;oors to taR a hard look at belting.A> BanJ'Vhilltlan. '''''' pre:sidmt ofmar-­ut de>"lopment for Mol M.nufacturing,aslos: ""'hat good d""s ic do co han a

Wh:1t about new nanopl:ostics? Inml­mi, Gary Lorsen thinks th..,.,~po~n­

ti"t but thcir oo."lopment isnt at a pointof prneticaliry yet in term, of new con­veyor belting-and the food industryisn't exaetlr clamoring for them. "MOle­ri,,1 "'seareh ...ill rootinue to k a m.jorpush for the food p""""ing industry. Tortspooo to th.. eonstantly ",,,Iving sonica­tion requi"""ents of th.. food proc..ssingindustry. it Os important for com")",. beltm"nufacru",rs to alwap stri,." to deter­min.. which moteri.ls will k,t suit theneed, of th.. industry: h.. 'ays. ·Whilethey do hold rome promise, it i' still ''''rye"rly to ,ay whether nanoplastics willprovide benefits to thi' morkn"

Bdting manuf",rurrrs "pproaeh newproduct d",."lopment from three stand­points: food safety, ease of m.intenan",and versa,ilitr, sop Barrr Voshell ofC"mbrldge In...rnaTlonal "The custom­er alwap wants mor.. throughpu' but"ithout ri'king th....fe'y or integri'y of'heir product. \V..·", ""'rking on de>dop­ing ...ider belts in longer lengths that arepo,i'ively dri,= '0 "ddre" throughpu"Hi'torically. th.. ehallengo:: has been tha'wider kits a", typico.lly frinion-driven,not po,itively dri'."n. You're relying onthe rom")"r being lOO'l6 aligned aU 'hetime to p...."."m any traeking problem'"

In food plants, eootings ,uch os flour.,ug>.r ,,00 ,alt are of~n "Wlied to prod­ucts, incre",ing belt tension and w....due to abra'ion. 'S'ronger belts thot .'"easiu to splic.. "'" "U)' important tom"in~nance team,,"Vosheli add,. Oil:s-­coeonUf and p.lm oil, .. 'p..ci"ll)~ ...ndam"g.. fabrie kIting.

cle"n"bk mochine if)OUr rom"e)"r beltingcon't be a, d....n:os the machine?"

Mol h:os d",."loped new belting madefrom .n extrndw thermo-plastic poly­urethane bknd thot oot only i' "brasion­,,00 rip-",si'tant. '" mo,t modular belts..... but also provid.., the f1exibilirr ofthe old fabrie belt,. In "ddirion. it bo, nonacks or cnnnie' to haroor pathogens,,00 ollerg=s-----it', roml'letelr ,mooth andfully washable.

"A ron'''}"r i' only os clem :os the bdt i'clean," soy" \ Vhitman. ooting Mol', I'l:os­tie belting con toke th.. hot~,t, harshtst"''''hdown' "nd .. 'he ,ame lime mo,."both frozen and hot I'roduet (though it""noo' be run through a rooktr). It's ligb""than other bd,ing, roo, though it', oot finn

mough '0 be rut on.As in other equipm..nt. antimicrobi­

"Is "'" now being integrat..d into someeom'e>"r belting, tsperi.lIy plo'tics andf"bric. Haba,it', H"baGUARD. forOOlmple. is an FDA- and USDA-com­pliant .ntimierobial manuf:lcrurod intokiting that pre'."n" mold prolifera­tion in """ition to di,roloration; it .Isooffers surf"", ~g"""'tion protection "nd"'mains ..£feetive af'er "'P"Oled cleanings.nd through normal wear ,,00 tear. (Thekit manul'a=r i' cordill to point outtha' HabaGUARD i' not" rq>la""mentfor good sanitation protocols.)

For oon'~r suppon srrnetu"'s, 'tain­less steel conlinue, ro k the material ofcook<", e\"n thoogh its rost ha, iocreasM,ignifkantly o'"r the past rouple of~rs,'piking in 2007 dU<' ro a nkke[ shortagebut coming down a bit ,i"", then. "It "'ISpainful lOr """""ne in the bu,itlelS," o:m­ments D.m GuIk". p""ident ofAmericanCon,"'}"r, "But there', ,tiU nothing outthere that offers tbe vers.tinty of ,tainkssfor the cost, Fiberglass breaks down, anddeming solvents can destroy other nmeri­:nsm...,.time."

Rkh Grnnth.m at Forbo SieglUlg sa}~

th.t while conyey<>rs may appear to bethe prosak pieres ofequipme1lt in a high­tech food plant, processor, shouldn't let'ppumnce be deceiving, ·ConYeyors.ren't a commodity item anymo"" There's• lot ofthooght .nd R&D th.t goes intotheir design: he points out, •Form"..., i"fonmtion;Da,id s.og.,r, Fle.rlcon, 61 0.-814-2400,dbog;.,@llexicon,comPool Cobbreita, I}.lirrCon'~,714-891­0883, ,'C"Ohbr<:rolli!\llir'ron ',,,,,r, com

AmJ' DeI"'rene, Bosch Reuoth,269-.697-5304,a",...de£wene@'us,bo.ch,romF..rie Doem, 1'1']\IT«hnologies,503-538-3141, <ric,docrn@l'l~n",,:h.comSt"'" Fesl'erman, Ham';t America,6711-2S8-3540,,t",.."fe'l'enn.n@Us.habasit.eomRich Gn,nd\3ln, I'orbo Siegling,70-1-94lH)SOO,rich.gr.,lt..... ''''-''forbo.comDan Gulick, Amerko.n Con'~"r,

71S-386·1).180,dl:'dick@'.mericllnrom~ur.net

GarJ'I_arsen, Intr"'ox,5~ 7J.HJ.lb3,g:.-d.ltSen@lntrnlox,com

BLtkc: S,..,jko>'Ski, J-kat a",1 c."ltrol,972-488-1993,b1.kc:s@],r.~ukl ron trol.rom

]\lartJ'T""'.b, Asl,worth Brothers,540-665-1350,mta~...h"urth.comBarrrVoshrl1, Cambridge Intern.tion.l,410-228-3007,b,ushrU(ii>c.••mbriJg;e-ind.com

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