Cosen C-650MNC User manual

COSEN SAWS
C-650MNC
SNCProgrammableAutomatic
Miter‐CuttingHorizontalBandsaw
InstructionManual
ThePinnacleofCuttingPerformance
CosenMechatronicsCo.,Ltd.


NOTE:
Read this instruction manual carefully to familiarize yourself with the installation,
operation and maintenance of your COSEN bandsaw machine.
Operate the machine following the procedures described in the manual to prevent
personal injuries or machine damage.
Keep this manual handy and refer to it whenever you are uncertain of how to
perform any of the procedures.
For technical support or parts purchase, please contact your nearest COSEN
representative or our service center:
For Europe:
phone: +31-77-7600280
fax: +31-77-7600288
web: www.cosensaws.eu
For Taiwan and other countries:
phone: +886-3-5332143
fax: +886-3-5348324
web: www.cosen.com.tw
For US, Mexico, and Canada:
phone: +1-704-943-1030
toll free: +1-877-SAWING1
fax: +1-704-943-1031
web: www.cosensaws.com
For China:
email: service@cosensaws.cn
phone: +86-152-50127815
web: www.cosensaws.cn
Instruction Manual: C-650MNC
SNC Programmable Automatic Miter-Cutting Horizontal Bandsaw
Ver.5 2018/01/09
©2013 by COSEN MECHATRONICS CO., LTD.
No part of this publication may be photocopied or otherwise reproduced without the prior written
permission of COSEN.
Printed in Taiwan
FROM THE MANUFACTURER
Thank you for your purchase of COSEN’s bandsaw machine and your trust in the COSEN
brand.
We are excited to have you as our valued customer and look forward as much as you do to
the accelerated productivity, long-lasting endurance and superb cost-effectiveness this
machine is about to bring to you.
To ensure you are fully utilizing our machine and being advantaged in every possible way,
please do take your time and read through this instruction manual.
Any comment or suggestion in making our service better, please do not hesitate to let us
know. Thank you again!


Safety rules
Make sure your work area is cleared of uninvited people and obstacles
every time before you start operating the machine.
Never step or stand on the roller table. Your foot may slip or trip on the
rollers and you will fall.
Never wear gloves or loose clothing when operating the machine. It may
lead to serious injury if they are caught in the running machine. Wrap or
cover long hair.
Never touch the running saw blade with gloves or not. It is dangerous if
your hands, clothing or gloves are caught by the running blade.
Make sure any use of fire is prohibited in the shop and install a fire
extinguisher or other fire control device near the machine when cutting
titanium, magnesium, or any other material that produces flammable chips.
Never leave the machine unattended when cutting flammable materials.
Use a water-soluble cutting fluid on this machine. Oil-based cutting fluids
may emit smoke or catch fire, depending on how they are used.
Never cut carbon or any other material that may produce and disperse
explosive dust. It is possible that sparks from motors and other machine
parts will ignite and explode the air-borne dust.

Safety rules
Never adjust the wire brush or remove chips while the saw blade is still
running. It is extremely dangerous if hands or clothing are caught by the
running blade.
Stop the saw blade before you clean the machine. It is dangerous if hands or
clothing are caught by the running blade.
Never start the saw blade unless the workpiece has been clamped firmly. If
the workpiece is not securely clamped, it
will be forced out of the vise
during cutting.
Take preventive measures when cutting thin or short pieces from the work
to keep them from falling. It is dangerous if the cut pieces fall.
Use roller tables at the front and rear sides of the machine when cutting
long work. It is dangerous if the work piece falls off the machine.
Turn off the shop circuit breaker switch before performing maintenance on
the machine. Post a sign indicating the machine is under maintenance.

i
Table of Contents
Section 1 –Safety Information
1-1
Safety Instructions ………………………………………………………………………………………………………
1-1
Safeguard Devices ……………………………………………………………………………………………………….
1-3
Emergency Stop ………………………………………………………………………………………………………….
1-4
Illustration: Emergency Stop ………………………………………………………………………………………
1-5
Safety Labels ……………………………………………………………………………………………………………….
1-6
Illustration: Safety Labels ………………………………………………………………………………………..…
1-7
Hearing Protection ………………………………………………………………………………………………………
1-8
CE Compliance …………………………………………………………………………………………………………….
1-8
Risk Assessment ………………………………………………………………………………………………………….
1-8
Section 2 –General Information
2-1
Specifications ……………………………………..……………………………………………………………………….
2-2
Machine Parts Identification ……………………………………………………………………………………….
2-3
Floor Plan …………………………………………………………………………………………………..……………….
2-4
Section 3 –Moving & Installation
3-1
Location & Environment ………………………………..……………………………………………………………
3-1
Unpacking & Inspecting ……..……………………………………………………………………………………….
3-2
Lifting …………………………………………..………………………………………………………………….………….
3-3
Illustration: Lifting Points …………………………………………………………………….…………….
3-5
Removing Shipping Bracket …………………………..……………………………………………….…………..
3-6
Cleaning …………………………………………..…………………………………………………………….…………..
3-6
Installing …………………………...………………………………………………………………………….…………….
3-6
Supplying Hydraulic Oil …………………………………………………………………….…………….
3-6
Supplying Coolant ………..………………………………………………………………….……………..
3-7
Connecting Electric Power ……………………………………………………………….……………..
3-7
Leveling & Anchoring …………………………………………………………………….……………….
3-8
Installing Roller Table (Optional) ………………………………………………….…………………
3-9
Installing Fire Control Device ………………………………………………….………………………
3-9
Relocating ………………………...…………………………………………………………………….………………….
3-9

ii
Table of Contents
Section 4 –Operating Instruction
4-1
Safety Precautions …………………..…………………..……………………………………….…………………….
4-2
Before Operating …………………………..…………………………………………………………………………….
4-3
Control Panel ……..……………………………………..………………………………………….…………………….
4-4
Control Panel ………………….………………………………………………………………………..…….
4-4
Control Buttons ……………………………………………………………………………………….……..
4-5
Blade Descend Pressure and Speed Control Panel …………………………………………
4-7
HMI Touch Screen & Functions …………………………………………………………….…………
4-7
Standard Accessories ………….………………………..……………………………………………….……………
4-18
Optional Accessories …….…….………………………..…………………………………………….………………
4-20
Unrolling & Installing the Blade …………………………………………………………………….…………….
4-21
Adjusting Wire Brush ………..……………………………………………………………………….……………….
4-23
Adjusting Saw Arm ………..……………………………………………………………………….…………………..
4-24
Adjusting Coolant Flow ………..………..…………………………………………………………………..…….…
4-24
Placing Workpiece Onto Workbed ………..………..…………………………………….……………………
4-25
Positioning Workpiece for Cutting ………..………..………………………………….………………………
4-25
Adjusting Blade Speed ………..………..……………………………………………………………………………
4-26
Breaking-In the Blade ………..………..…………………………………………………………………..…………
4-26
Test-Running the Machine ………..………………..…..………………………………………………………….
4-26
Cutting Operation ………..………..……………………………………………..…………………………………….
4-27
Starting an Automatic Operation ………..………..………………………….…………………………………
4-28
Terminating a Cutting Operation ………..………..…………………………………….……………………….
4-28
Section 5 –Electrical System
5-1
Electrical Circuit Diagrams ……….…………………..……………………………………………………………..
5-1
Section 6 –Hydraulic System
6-1
Hydraulic Diagrams ……….…………………..……………………………………………………………….……….
6-1
Section 7 –Bandsaw Cutting: A Practical Guide
7-1
Introduction ……………………….…….…………………..…………………………………………………………….
7-1
Saw Blade Selection ………………….…………………..……………………………………………………………
7-2
VISE LOADING …………….…………………..………………………………………….………………………………
7-3
BladeBreak -In …………………………………………………………………………………….……………………..
7-4

iii
Table of Contents
Section 8 –Maintenance & Service
8-1
Introduction ……………………….…….…………………..…………………………………………………………….
8-1
Basic Maintenance ………………….…………………..…………………………………………….……………….
8-1
Maintenance Schedule …………….…………………..…………………………………………………………….
8-2
Before Beginning a Day’s Work ……………………………………………………………………….
8-2
After Ending a Day’s Work …………………………………………………….………………………..
8-2
Every 2 weeks ……………………………………………………………………….……………………….
8-2
First 600hrs for new machine,then every 1200h………………..………………………….
8-2
Every Six Months ……………….………………………………………………….……………………….
8-3
Storage Conditions …………………………....………..……………………………………………………………..
8-3
Terminating the Use of Machine ……..…………..……………………………………………………………..
8-3
Oil Recommendation for Maintenance ……………………………………………………………………….
8-4
Section 9 –Troubleshooting
9-1
Introduction ……………………….…….…………………..…………………………………………………………….
9-1
Precautions ………………….…………………..…………………………………………………………………….....
9-2
General Troubles & Solutions ………………………..…………………………………………………………….
9-2
Minor Troubles & Solutions ………………………..………………………………………………..…………….
9-3
Motor Troubles & Solutions ………………………..…………………………………………………..………….
9-3
Blade Troubles & Solutions ………………………..………………………………………………………………..
9-4
Sawing Problems & Solutions ………………………..……………………………………………………………
9-5
Re-Adjusting the Roller Table ………………………..…………………………………………………………….
9-12
Section 10 –Parts
10-1
Spare Parts Recommendations …………………..……………………………………………………………….
10-1
Part List ……………………………………………………………………………………………………………………….
10-2
Section 11 –Warranty
11-1
Warranty …………………..………………………………………………………………………………………………..
11-1


1‐1
Section1
SAFETY
INFORMATION
SAFETYINSTRUCTIONS
SAFEGUARDDEVICES
EMERGENCYSTOP
SAFETYLABELS
HEARINGPROTECTION
CECOMPLIANCE
RISKASSESSMENT
Safetyisacombinationofawell‐designedmachine,operator’sknowledgeaboutthemachineand
alertnessatalltimes.COSEN’sbandmachinehasincorporatedmanysafetymeasuresduringthe
designprocessandusedprotectivedevicestopreventpersonalinjuriesandpotentialrisks.Warning
labelsalsoserveasaremindertotheoperator.
Throughoutthismanual,youwillalsoseevarioussafety‐relatedsymbolsindicatingimportant
informationthatyoushouldtakenoteofpriortouseofthemachineorpartofitsfunctions.These
importantsafetyinstructionsdonotcoverallpossiblesituationsthatmightoccur.Itisyour
responsibilitytotakecautionandfollowproceduresstatedinthismanualwheninstalling,
maintainingandoperatingyourmachine.Cosenwillnotbeliablefordamagesresultingfrom
improperuse.
SAFETYINSTRUCTIONS
Whattheiconsandsignsinthisusermanualmean:
ThisiconmarksDANGER;hazardsorunsafepracticesthatmayresultinsevere
personalinjuryordeath.
ThisiconmarksWARNING;hazardsorunsafepracticesthatmayresultin
personalinjuryordamagetothemachine.
ThisiconmarksCAUTION;informationthatshouldbereadbeforeusetoprevent
damagetothemachine.
Supplementaryinformationtotheproceduresdescribedinthismanual.
Callyourlocalagentorourservicecenterforhelp.

1‐2
Thismanualhasimportantsafety
information.Readthroughitcarefully
beforeoperatingthismachinetoprevent
personalinjuryormachinedamage.Learn
theoperation,limitationandthespecific
potentialhazardspeculiartothisband
saw.
Donotoperatethismachineunlessitis
completelyassembled.
Makesurethepowerswitchisoffbefore
plugginginpowercord.
Disconnectthepowercordbeforemaking
adjustment,maintenanceorblade
changes.
Keepallguardsandshieldsinplacebefore
installingorstartingupthemachine.
Wearproperapparelduringoperation
andwhenservicingthemachine.
Keepunauthorizedpersonnelaway.
Donotreachoverorstandonanypartof
themachine.
Neverholdthematerialbyhandfor
cutting.Alwaysusetheviseandmake
surethematerialisclampedsecurely
beforecutting.
Itisdangeroustooperatethemachine
whenthefloorisslippery.Keepthefloor
cleananddry.Checkforice,moisture,or
greasebeforeentering.
Donotusethemachinetocutexplosive
materialorhighpressurevesselsasitwill
generategreatamountofheatduringthe
sawingprocessandmayignitean
explosion.
Keeptheworkenvironmentsafe.Donot
usebandsawinadamporwetlocation.
Neveroperatewhileundertheinfluence
ofdrugs,alcoholormedication.
Allusersmustreaditbeforeperformingany
activityonthemachine,suchasreplacing
thesawbandordoingregularmaintenance.
Somepersonalprotectiveequipmentis
requiredforthesafeuseofthemachine,e.g.
protectiongoggles.
Keepbladeprotectioncoverandwheel
coversinplaceandinworkingorder.
Userecommendedaccessories.Improper
accessoriesmaybehazardous.
Keepyourworkareawellilluminatedat
minimum500lumen.
Keepyourworkareaclean.Clutteredand
slipperyfloorsinviteaccidents.
Removeadjustingkeys,wrenchesorany
loosepartsoritemsfromthemachine
beforeturningonpower.
Checkfordamagedparts.Beforecontinuing
usingthemachine,thedamagedpartshould
becheckedandreplaced.
Movingpartsshouldbekeptinproper
alignmentandconnectionwiththemachine.
Checkforbreakage,mountingandanyother
conditionsthatmayaffectitsoperation.Any
damagedpartorguardshouldbeproperly
repairedorreplaced.
Whenaworkpieceistoolongorheavy,
makesureitissupportedwitharollertable
(recommended).
Alwaysremembertoswitchoffthemachine
whentheworkiscompleted.
Useasharpsawbladeandkeepthemachine
initsbestandsafestperformanceby
followingaperiodicalmaintenanceschedule.
Donotforcethebandsawbeyondits
intendeduse.Itissafertooperatewiththe
cuttingrateforwhichitwasdesigned.

1‐3
SAFEGUARDDEVICES
Thesafeguarddevicesincorporatedinthismachineincludethefollowingtwomainparts:
1. Protectioncovers&guards
2. Safety‐relatedswitches
ProtectionCovers&Guards
1. Idlewheelhousingcover
2. Drivewheelhousingcover
3. Gearreducercover
4. Wirebrushbeltcover
5. Bladeguardcover(left&right)
6. Chipconveyorcover(CEmodelonly)
Theprotectiondevicesshouldalwaysbemountedonthemachinewheneverthemachineis
running.
Donotremoveanyofthesesafeguarddevicesunderanycircumstancesexceptwhenservicing
themachine.Evenskilledservicetechniciansshouldstilltakecautionswhenperformingrepairs
orserviceonthemachinewithanyoftheseprotectorsremoved.Itistheresponsibilityofthe
usertomakesurealltheseelementsarenotlostanddamaged.
Takenoteofthefollowingmainmovingpartsonthemachinepriortoandduringmachine
operation:
Sawbowassembly
Driveandidlewheels
Bladeguidearm
Sawbladeguiderollers
Quickapproachdevice
Wirebrush
Chipconveyor(optional)
Workpiececlampingvises
Shuttlevisesandworkbedrollers
Topclamps(optional)
Gearreducer

1‐4
SafetyRelatedSwitches
Toprotecttheoperator,thefollowingsafetyrelatedswitchesonthemachineareactuatedwhenthe
machineisinoperation.
WheelmotiondetectorThisisaproximitysensorusedtodetectthemotion
ofthedrivewheel.Oncethesawbladeisbrokenor
assoonasitstartsslipping,thesensorwilldetect
andstopthedrivewheelandthemachine.
PowerswitchLocatedonthecoverofelectricalcabinet,thepower
switchcontrolsthemainpowerofthemachine.
EmergencystopbuttonLocatedonthecontrolpanel,thebuttonwhen
pressedwillstopthemachinecompletely.
ViseclampswitchThisswitchassuresfirmclampingoftheworkpiece.If
theworkpieceisnotclampedproperly,thesaw
bladeisnotallowedtorun.
Wheelcoverinterlockswitches
(CEmodelonly)
Locatedonthetwowheelhousings,theseswitches
areusedtoassurethatthemachinewillstop
wheneverthewheelcoversareopen.Thisdeviceis
toprotectusersfrombeingcutbytherunningsaw
blades.
Amongallthesesafetyswitches,someofthemareusedtoprotecttheusersandsomeofthemare
usedtopreventdamagetosawblades,theworkpieceandthemachineitself,etc.Wehavetaken
everyprecautiontopreventinjuryordamageandtoprovidesafeandeconomicaloperationofthe
machine.
EMERGENCYSTOP
Designedtobeeasilyaccessible,theemergencystopbuttonislocatedontheleftbottomcorneron
thecontrolpanelandismadeinredcolorandrubbermaterial.ForCEmodels,supplementary
emergencystopbuttonmaybeavailableatotherarea(s)ofthemachinedependingonmachinetype.
PleaserefertoIllustration:EmergencyStop.
Whenyoupressthebutton,themachinewillimmediatelycometoafullstoptoavoidinjuryor
damagewhenanaccidentoccurs.Thebuttonwillbelockedwhenyoupressit.Tounlockit,pullit
upward.
Youshouldpressitimmediatelywithoutanyhesitationwhenobserving:
Anemergencysituationthatwouldcauseanyinjuryordamage
Anabnormalsituationorproblemsuchasfire,smoke,abnormalnoiseandetc.

1‐5
Illustration:EmergencyStop
EmergencyStop

1‐6
SAFETYLABELS
Pleasereadthroughandunderstandthembeforeoperatingthemachine.RefertoIllustration:Safety
Labels.
LabelMeaningLabelMeaning
ImpactHazard
WEARSAFETYSHOES.Do
notapproachdroppingarea
duringoperation.
ReadOperator’sManual
Thismanualhasimportantsafety
information.Readthroughit
carefullybeforeoperatingthis
machinetopreventpersonalinjury
ormachinedamage.
KeepUnauthorized
PersonnelAway
Donotstep.
Donotstandonthemachineoron
theaccessories!
DANGER:RunningBlade
Bladerunsthroughthis
area.Keepyourhandsaway
fromarunningbladeto
avoidsevereinjury.The
arrowindicatesdirectionof
theblade.
CuttingHazard
KEEPCOVERCLOSED/KEEPHAND
OFFwhilethebladeisrunning.
Turnpoweroffbeforeopening
cover.Failuretofollowthewarning
canresultinsevereinjury.
HazardousVoltage
TURNPOWEROFFbefore
servicing.Failureto
followingthewarningcan
resultinsevereinjury.
BurnHazard/HotSurface
HandCrush/Forcefrom
Above
Crushhazardbyvise
LooseHandHazard
KEEPHANDOFF.Donot
touchchipconveyor.Failure
tofollowthewarningcan
resultinsevereinjury.
PinchPoint/HandEntanglement

1‐7
Illustration:SafetyLabels

1‐8
HEARINGPROTECTION
Alwaysuseearprotection!
Whenyourmachineisrunning,noisegeneratedbythemachinemaycomefromthefollowing:
Sawbladeduringcuttingormaterialfeedmechanism
Wirebrushunit
Chipconveyorunit
Speedreducer
Hydraulicmotor/pump
Belttransmissionsvariablespeedmotors
Blademotor
Coolantpump
Drivewheel
Partsnotassembledtightlycausingmechanicalvibration
Ourproductspassnoisetestinglessthan78dBA.Noiselevelvaryaccordingtoworkingconditions
andwerecommendearplugsorotherhearingprotectionatalltime.Ifyourmachineproducesan
undesirablenoisewhileitisrunning,youshould:
1. Makesureallmaintenancetaskshavebeenperformedfollowingtheprescribedmaintenance
schedule(RefertoSection8).
2. Ifmaintenancedoesnotseemtosolvetheproblem,followthetroubleshootingprocedures
underSection9.
CECOMPLIANCE
Cosen’sCEmodelisdesignedtosatisfyregulationsoftheCouncilDirectiveontheapproximationof
thelawsoftheMemberStatesrelatingtomachinery(2006/42/EC)‐AnnexIEssentialhealthand
safetyrequirementsrelatingtothedesignandconstructionofmachinery.
RISKASSESSMENT
Riskassessmentgenerallytakesaccountofintendeduseandforeseeablemisuse,includingprocess
controlandmaintenancerequirements.Wemadeeveryefforttoavoidanypersonalinjuryor
equipmentdamageduringthemachinedesignstage.However,theoperator(orotherpeople)still
needstotakeprecautionswhenhandlinganypartofthemachinethatisunfamiliarandanywhereon
themachinethathaspotentialhazards(e.g.theelectricalcontrolbox).

2-1
Section 2
GENERAL
INFORMATION
SPECIFICATION
MACHINE PARTS IDENTIFICATION
FLOOR PLAN
This band saw machine is designed by Cosen’s R&D engineers to provide you the following features
and advantages:
Safety
This machine is designed to fully protect the operator from its moving parts during cutting
operation.
The machine and each compoment has passed strict testing (Council Directive on the
approximation of the laws of the Member States relating to Machinery).
The machine will shut off automatically when the saw blade is broken, protecting both the
operator and the machine.
Convenience & High-Performance
The machine is designed in the way that the operation and adjustment can be easily
performed.
The machine will stop automatically when out of stock.
Dual valve system is designed to achieve optimal cutting performance with the simple
setting of feed rate and perspective cutting pressure for different material.
Durability
The intended life-span of the machine is counted based on regular daily operation. It is
calculated with the life expectancy of 10 years under normal operating condition and exact
attention to the maintenance schedule.
8 hours × 5 days × 52 weeks × 10 years =20,800 hours

2-2
SPECIFICATION
Model
C-650MNC
SNC Programmable Automatic Miter-Cutting Horizontal
Bandsaw
Capacity
Angle
0°
+45°
+60°
Round
17.5” (445 mm)
17.5” (445 mm)
11.4”(290 mm)
Rectangular (H x W)
17.5” x 26”
(445 x 665 mm)
17.5” x 26”
(445 x 665 mm)
17.5” x 11.4”
(445 x 290 mm)
Bundle Cutting
W: 7.1”, 15.7”, 25.6”
H: 0.6”~ 17.5”
(180, 400, 650 mm)
(15 ~ 445 mm)
Saw Blade
Speed
82 ~ 328 fpm (25 ~ 100 m/min)
Size (L x W x T)
209” x 1.6” x 0.05”(5,300 x 41 x 1.3 mm)
Tension
Hydraulic with automatic blade breakage detection
Guide
Interchangeable tungsten carbide
Cleaning
Steel wire brush
Motor
Output
Saw Blade
7.5 HP (5.6 kW)
Hydraulic
2 HP (1.5 kW)
Coolant Pump
1/4 HP (0.18 kW)
Tank
Capacity
Hydraulic
16.9 gal (65 L)
Coolant
29.9 gal (115 L)
Vise
Control Method
Hydraulic with full stroke cylinder
Feeding
Length
Mode
Hydraulic, NC Automatic
Single Stroke
31.5” (800 mm)
Multi Stroke
Max. 650”(6,500 mm)
Workbed Height
29.5”(750 mm)
Weight
Net
5,904 lb (2,678 kg)
Gross
6,613 lb (3,000 kg)
Floor Space (L x W x H)
112.7” x 141.5” x 97.1”(2,863.3 x 3,594.9 x 2,465.1 mm)
Table of contents
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