Mega BS-760M Instruction manual

Semi-Auto BANDSAW
BS-760M
INSTRUCTION MANUAL
MEGA MACHINE CO., LTD.
DOC NO:
BS760M-080410-100.U
CTRL NO: 06
UPDATE:
2008/4/11
DOC VER: A2
TABLE OF CONTENTS
Item
1.
2.
3.
4.
5.
Contents
Page
Introductory Illustrations
3
1.1.
3
Principal parts
Specifications
4
2.1.
Specifications
4
2.2.
Standard Accessories
4
Installation
5
3.1.
moving and lifting
5
3.2.
Foundation layout and Set-up
6
Operation
8
4.1.
Control Panel
8
4.2.
Operating preparation
9
4.3.
Manual Operation
10
4.4.
Special Operation
10
4.5.
Break -In Operation
11
Maintenance
12
5.1.
Hydraulic Circuit
12
5.2.
Oiling and Lubrication
13
5.3.
Others
14
6.
Trouble Shooting Guide -
16
7.
Reference Charts
18
8.
Attach Electrical Circuit
1
FOREWORD
We hope that the owner of this heavy-duty bandsawing machine will have years of trouble-free
service. The machine has been built to the highest standards to enable fast accurate cutting to be obtained.
In order that the best results can be achieved from your MEGA band saw we would ask all operators
and maintenance engineers to READ THIS MANUAL CAREFULLY BEFORE STARTING
UP THE MACHINE. The manual contains full instructions on installation, operation, lubrication,
maintenance and trouble-shooting.
As MEGA MACHINE COMPANY LIMITED is constantly improving the design of its
machines, there may be some instance where this book differs somewhat from the machine with
which you are concerned. So, always quote the Serial Number of your machine, when ordering
spare parts or in correspondence relating to the machine.
MODEL : BS-760M
Serial Number :
Request for service and spare parts should be made to :
ADDRESS: NO. 180, INDUSTRIAL ROAD, TAI-PING CITY, 41107 TAICHUNG,
TAIWAN R. O. C.
E-MAIL: mega@ms1.hinet.net; mega@mail.mold.net.tw
http: www.bandsaw.com.tw
TEL: 886 4 22712877(PRES.) FAX:886 4 22715016
2
1. INTRODUCTORY ILLU1STRATIONS
1.1 Principal Parts
3
2
SPECIFICATIONS
2.1
SPECIFICATIONS
MODEL
BS760M
PECIFICATION
CUTTING CAPACITY
AT 90
H BEAMS / PIPES
MITRE CUTTING
AT 60°
H BEAMS / PIPES
MITRE CUTTING
AT 45°
H BEAMS / PIPES
MITRE CUTTING
AT 30°
H BEAMS / PIPES
BLADE SIZE
BLADE SPEED
MOTOR OUTPUT
SHIPPING VOLUMN
WEIGHT Net/Gross
○ SOLID 460 MM DIA.
□ SOLID 460 SQR.
◎ 460 MM O.D.
□ /
760 x 400
○ SOLID 420 MM DIA.
□ SOLID 420 MM SQR.
◎ 460 MM DIA.
□ / 590 x 400 MM
○ SOLID 330 MM DIA.
□ SOLID 330 MM SQR.
◎
460 MM DIA.
□ / 500 x 400 MM
○ SOLID 220 MM DIA.
□ SOLID 220 MM SQR.
◎
220 MM DIA
□ /
220 x 400 MM
38*1.3*5500 MM
1.5 x .051 x 209
IN
25 - 80 M/MIN (50/60HZ) 25,32,42,55,70,80 MPM
82 - 260 F/MIN (50/60HZ)
82,105,138,180,230,260
BLADE 7.5 HP (5.62 kW)
HYD.
2 HP (1.5 kW)
CLNT 1/4 HP (0.19 kW)
2805 x 2300 x 2100 MM
2600 / 2900 KGS
Specifications subject to change without notice for improvement and modification.
2.2 STANDARD ACCESSORIES
1. Tools with tool box .............………….……..……....... 1 set
2. Band-cleaning wire brush ...…………………..….......... 1 pieces
3. Band saw blade .................…………………..……....... 1 piece
4. Instruction manual .............………………….……........ 1 copy
4
3. INSTALLATION:
3.1 Moving and lifting:
Unpack your machine carefully, and use a crane or forklift to set it in position. If a crane is used to lift
the machine attach the lifting cable carefully to the machine as shown in the fig 2. If forklift is used
then fig 3.
Sufficient space should be left around the machine to allow safe handling of materials , and inspection
and maintenance operation. Should there be other machinery causing vibration or dust that near your
achine ,then precautions must be taken to keep your machine away from of vibration and dust.
(1) Use Crane :
Fig 2
(2) Use Forklift :
Fig 3
5
3.2 Foundation layout and set-up:
(1) Foundation:
The foundation should be constructed of reinforced concrete and must be level and flat. After the proper
leveling position has been obtained, anchor the machine with anchor bolts. The position of anchor bolts
and floor dimensions are shown in fig 4:
□
○
Contact portion with floor
Position of anchor bolts
Fig. 4
※
All leveling bolts should support the weight of the machine evenly .
6
(2) Leveling:
The production accuracy of all precision machinery depends on the accuracy which the machine is
installed . Manufacturing tolerance of the machine can only be guaranteed if the machine is firmly and
properly installed . Once the machine is lowered on the prepared foundation . Machinist levels should be
Used alternately on the vise slide plates and the work feed table , and adjust the left-and-right and
fore-and-aft level of the machine with leveling bolt .
The fore-and-aft level should be adjusted so that the level of the rear end is approximately 10 mm (3/8" 1/2") higher than the level of the front end , to provide proper return of the cutting fluid , and easy
operation of car feeding .
The left-and-right level should be adjusted so that the level of the left end is approximately 3 mm (1/8")
higher than the level of the right end , to provide proper return of the cutting fluid , After the proper
leveling position has been obtained anchor the machine with anchor bolts .
CAUTION : All leveling bolts should support the weight of the machine evenly .
Leveling as fig 5 below :
FIG 5
(3) Cleaning and oiling :
After the machine has been placed in position , thoroughly remove its rust preventive coating using a
suitable cleaning solvent and then apply a coat of machine oil . To clean the machine, Kerosene is
preferable to gasoline . It does not evaporate and level dried slushy compound on finished surfaces.
Rags are better than waste as they leave no lint or strings. The machine as received by you. has been
completely drained of all oil. Before any attempt is made to run it . Before any motor connections are
made .... every detail of the following oiling instruction must be complied with. Refer to the oiling chart
in chapter 7. Especially, don't forget to fill up the cutting fluid mixture. Usually, the ratio of cutting fluid
to water should be 1:30 - 1:50. Check the sight gauge to ascertain the fluid level in the tank every day.
Transmission gear box, bar feed gear box, hydraulic oil tank should to topped up monthly. Oil levels
should be strictly observed, for it is of primary importance for proper operation and long lift .
(4) Power Source Connection:
A. Power Source - This machine is equipped with 7.5HP main motor and 2HP hydraulic motor , and
1/8HP Coolant Pump. Connect the power supply cable to the circuit breaker(N.F.B.) terminals. The power
supply to your machine should agree with the wring voltage that is indicated on the label attached to the
electrical enclosure and main motor.
B. Earth - Be sure to connect the earth cable to the earth terminal.
C. Starting - After making the necessary wiring connections, turn the power switch on the control panel
clockwise to turn power on, depress the vise limit switch (if necessary, e.g. if there is no stock bar
clamped in the vise) and push the button to see if the saw head moves upward.
If the saw head does not rise , the hydraulic pump motor is rotating in the wrong direction.
If the motor runs in the wrong direction, turn off the power switch and disconnect the power supply cable,
Then interchange any two-phase connections.
Then interchange any two-phase connections.
7
4. OPERATION
1. Control Panel
(1) Emergency Stop -- This switch is used for emergency case to stop the machine only.
Turn this switch clockwise makes power source on. When this
switch is pressed, all machine's operation stop immediately.
(2) Pilot Lamp -- This light will comes on when the power supply is on.
(3) Power Switch Off -- This switch is used for turning off the power by depressing it.
(4) Power Switch On -- This switch is used for turning on the power by depressing it.
(5) Quick Approach Button -- While this button is pressed, the saw head descends quickly.
This button is used to cause the saw blade to approach the work quickly when the saw blade is
at a distance frame the workpiece. When the feeler of the quick approach device comes into
contact with the work, the saw head stops descending at that position even this button is still pressed.
(6) Raise Button -- When this button is pressed, the saw blade motor stops and the saw head ascends.
The saw head stops ascending at that position when the button is released.
(7) A. Vise Open – Turn Left
B. Vise Clamp – Turn Right
(8) Blade Drive Button
(9) Clockwise angle Control Button
(10) Count Clockwise Angle Control Button
(11) Feed rate counter
(12) Work Beam Light switch
8
4.2 OPERATING PREPARATION
There are several steps will be taken before start the machine.
(1) CHOOSE PROPER SAW BLADE :
Select the saw blade best suited to the workpiece to be cut, Size and shape of the workpiece , and
type of material should all be considered when selecting the saw blade to be used . There is a
reference chart in chapter 7 which can help you to select the right saw blade and cutting conditions .
(2) UNPACK THE SAW BLADE :
Usually the saw blade is packed in 3 circle ,unpack it one circle first grip the part to release another 2
circles gradually , tear off the saw-cap protective shield , inspect the blade teeth , make sure that the
cutting edge of the blade teeth point to the right . If they point to the left the blade should be turned
over.
(3) PLACE THE SAW BLADE ONTO BOTH THE DRIVE AND DRIVEN WHEELS ---a. Turn the hydraulic blade tension handle clockwise , to fully loosen the driven wheel .
b. Open both the drive and driven wheel covers , place the saw blade onto both the drive and driven
wheels. Check the cutting edge of the saw blade , to ensure that it point to the right.
c. Insert the saw blade into both the left and right blade guides so that the back edge of the saw blade
touches the back-up roller of each guide .
d. The back edge of the saw blade should make contact with the flange of the drive and driven wheel ,
turn count -clockwise the hydraulic blade tension handle to tighten
the saw blade , Then the blade
is properly tensioned .
e. Don't forget to tighten the insert adjusting screw .
(4) WORKPIECE CLAMPING :
a. Raise the saw frame , open the vise , place the workpiece on the roller table .
b. Gently push the workpiece into the roller-feed vise, taking care not hit the feed rollers.
c. Clamp the workpiece in vise.
(5) ADJUST THE BLADE GUIDE ARM :
Properly position the blade guide arms according to the diameter (or the width) of the workpiece to be
cut.
a. loosen the insert adjusting screw.
b. loosen the lock lever of the blade guide arm, and manually move the blade guide arm to suit the width
of material using the scale provided.
c. After adjusting the blade guide arm position ,tighten the lock lever.
d. Finger tighten the insert adjusting screw.
(6) ADJUST THE POSITION OF THE WIRE BRUSH :
a. loosen the lock lever of the wire brush case.
b. Manually move the wire brush case so that wire brush just contacts the cutting edge of the saw
blade.
c. Tighten the lock lever.
(7) ADJUST THE FEED RATE :
Select suitable feed rate for the workpiece to be cut. This varies according to the size and shape of the
workpiece, type of material , and what type of saw blade is being used. As a guide hard materials, wide
workpiece or structural sections and tubing have to be cut at a slower rate that mild steel bar.
As concerns the saw blade , high speed steel is better than carbon steel, and bi-metal alloy is better than
high speed steel. Roughly the ratio of feed speeds could be 1:2:3
9
(8) SELECT THE SAW BLADE SPEED :
There are 6 speeds provided : 25, 32, 42, 55, 70, 80 M/min
If a optional variable speed drive is equipped the speed to be 20 to 80 M/Min steplessly.
4.3 MANUAL OPERATION :
Place the workpiece to be cut on the work table , decide how long you want the off-cut , and carry
out all the procedures as described above in [2] Operating Preparation.
(1) Depress the RAISE button to lift the saw frame until the cutting edge of the saw blade clears the
workpiece by 1/2 to 3/4 inch.
(2) Turn the AUTO-MANUAL selector to manual.
(3) Clamp the workpiece.
(4) Adjust the spacing of the blade guide arms.
(5) Preset the required cutting length of the workpiece.
(6) Depress BAR FEED PORWARD button until the workpiece touch the bar stop feeler.
(7) Adjust the FEED RATE.
(8) Depress BLADE DRIVE button to start both the saw blade motor and the cutting fluid pump and
the saw frame begins to descend.
(9) After completion of the cut saw blade stops at the lower limit position.
(10) Depress the RAISE button to cut next piece again.
*. Before you start to cut the workpiece, you must inspect that....
*. The workpiece is well clamped.
*. The saw blade is suitable for the material being cut.
*. The feed rate is suitable for the material being cut.
*. The speed of the saw blade is suitable for the material being cut.
*. The insert adjusting screw and the lock lovers of the blade guide arms are all tightened.
*. Sufficient tension is placed on the saw blade.
*. The wire brush is properly positioned.
*. There is sufficient cutting fluid in good condition.
*. The off-cut length is as required.
4.4 SPECIAL OPERATION :
(1) While you are cutting a workpiece, if the saw blade suddenly jams in the workpiece, depress the
FRAME RAISE button to lift the saw frame immediately.
(2) The saw blade jamming in the workpiece is most likely because of :
a. Slippage occurring between saw blade and drive wheel. Tension placed on the saw blade is not
sufficient.
b. Slippage occurring between drive belt and motor pulley. Tension on drive belt is not sufficient or
belt is worn.
c. Broken teeth on saw blade.
d. Too blunt saw blade.
e. Too fine tooth spacing on saw blade for material being cut.
f. Too fast feed rate for material being cut and blade used.
10
4.5 BREAK-IN OPERATION:
When a new blade is used , be sure to first break in the blade before using it for extended operation.
Failure to break in the blade will shorten the service lift of the blade ,and result in
less than
optimum
efficiency. To break in the blade ,proceed as follow :
(1) Reduce the blade speed setting to one half of its normal setting .
(2) Lengthen the time required for cutting to 2-3 times that of normal.
(3) The break-inoperation can be considered sufficient if all unusual noises or metallic sounds have
been eliminated. (For instance, to completely break in the blade, a minimum of five complete cuts
of a 200mm (8 ins) diameter work- piece will be required.)
(4) After the break-in operation has been completed, return the blade speed and feed rate to their
normal setting.
11
5.Maintenance
5.1 HYDRAULIC CIRCUIT
12
5.2 Oiling and Lubricant
The operator should be responsible for the proper lubrication of
quality of lubricant are given in the lubrication chart below :
the machine. The grade and
Oil Lubrication chart
Lubricating Point
Lubricant
Quantity Oiling Frequency
1.
Transmission
Gear Box
2.
Drive Wheel Bearing
Driven Wheel Bearing
Grease
20g
20g
Thrice a year
3.
Cutting Fluid
Tank
Cutting Oil Mixture
(KH ULTRA COOL EX-2)
65 liters
Daily
4.
Hydraulic Oil
Tank
DAPHNE FLUID 32T
55 liter
Twice a year
DAPHNE GEAR LUBE 320 30 liters
Twice a year
Belt Size
Belt Name
5
Motor Belt
6
Wire Brush Belt
Belt Size
50HZ & 60HZ use 3V600
Inverter use 5V600
Quantity
M45
1
13
1
5.3 OTHERS
VARIABLES WHICH AFFECT BANDSAW BLADE LIFE
1. The Operator - The operator is the most important variable at any test. He can make or break any
test and often has a great deal of influence over whose bandsaw blades are used. He can also be a good
source of information on what is going on, competitive situations, relationships with manufacturers or
distributors, etc. Don't ignore the operator.
2 . Number of Teeth in the Band - There should always be a minimum of three teeth in the work at all
times to avoid straddling. Nine to twelve is the optimum number and anything over 24 is probably too
high (although sometimes unavoidable).
3 . Tooth Style - Standard, skip, sabre, Si -Pitch or XL.
The best tooth style for the material being cut should be used.
4 . Tooth Set - Regular, Wavy, E.T.S.,Si - Pitch, Maxi -Sharp. The proper band with the proper set for
the material being cut should be used.
5 . Band Tension - Band tension, as measured by Simonds Patented Simometer, is important to the
efficient running of a bandsaw blade. Too little tension can cause a blade to "wander" in the cut while
too much can actually pull the band apart.
6 . Band Speed - Start with Simonde speed and feed slide chart. Too high a speed can cause too much
heat lessening the life of the band. Too low a speed could cause overfeeding. Always reduce the speed
when cutting dry.
7 . Break - in Procedure - The normal feed rate should be reduced to about 1/2 for the first 50 square
inches or so to hone in the blade. A good example is that of a sharp pencil. You must not bear down
hard on it right away or you risk breaking the point. The same holds true for a bandsaw tooth.
8. Feed Rate - Set the feed rate by square inches per minute according to simonds speed and feed slide
chart. Watch your chips and adjust accordingly as both overfeeding and underfeeding cut bandsaw life.
9. Band Quality - Carbon steel blades vs. High Speed Blades, M-2 vs. M42, etc. All affect the life you
will get from the band. Once again choose the proper type band for the job. There are also differences in
quality among manufacturers. Simonds has some of the highest quality standards in the world.
10. Machine Type - Different makes and models with varying horsepower available can affect life. A well
made heavy duty machine can greatly enhance band life.
11. Wheels - The Wheels carry the band and it is very important that they be properly aligned and that
the bearings be in good shape. Misalign wheels and loose bearings can cause undue stresses on the
band and reduce fatigue life. Flanges should also be checked and if extremely worn, the wheel should
be replaced. Worn flanges are usually a sign of misalignment or bad bearings.
14
12. Machine Condition-Whether a machine is old or new, and whether well maintained or not contributes
to how well it runs and how long the band last. The better shape a machine is in, the better the bands
will run. Poor machines ruin bandsaw blades.
13. Proper Vises - The work must be properly held. Side vises and top vises, if necessary, should be in
good shape and able to firmly hold the work. Anything that moves will strip teeth.
14. Guides - The guides must support the band well while in the cut. The guides in conjunction with
tension are all that keeps the band straight. Roller guides should be snug against the band and turn
freely.
The surface should be flat and not worn at an angle. Solid carbide guides should also be sung against
the band and should show no sign of wear. They can be faced off if necessary. Backup guides should not
be grooved and should also turn freely if rollers. Be sure the teeth of the band do not ride up into the
guides.
15. Guide Arms - The guide arms should be as close to the work as possible. Beam strength is determined
by a cubed factor, so increasing the distance between the guides by a factor of 2 decreases the beam
strength by a factor of (2)^3 or 8. You lose a lot very quickly.
16. Brushes - A good set of brushes (powered is preferable) aid in the cleaning of chips from the gullets,
if available and properly adjusted. One test shows a better than 25﹪increase in life just by using
brushes. Always check the brushes.
17. Coolant - A good coolant will help cool, lubricate and wash the bandsaw blades. Always maintain a
good flood of coolant when possible.
18. Material machinability - The tougher the material, the less expected band life. For instance 1018 vs.
Inconel 718.
19. Material Hardness - A Rockwell C scale reading of 40 is approaching a machinability of 0. Only
recently have we been able to go much beyond this with the introduction of our CT Type III band.
20. Material Shape - Structural and small solids are always harder on a band than large solids.
21. Production Requirement - Continuous runs of one size and material is easier than intermittent cutting
of various sizes, shapes and materials.
22. Room Temperature - Temperature has a big effect on the hydraulic system of a machine. Always
allow the machine to warm up before staring to saw.
15
6. TROUBLE SHOOTING GUIDE
The following charts contains some typical troubles along with the probable causes and remedies for
each.
6.1 Sawing Problems and Solution
Vibration during cutting
Failure to cut
Short life of saw blade
Curved cutting
Broken blade
Use blade with correct pitch,
suited to workpiece
Failure to break-in saw blade
Perform break-in operation
Excessive saw blade speed
Reduce speed
Insufficient saw blade speed
Increase speed
Excessive load
Reduce feed rate
Insufficient load
Increase feed rate
Insufficient saw blade tension
Increase tension
Wire brush not working correctly
Relocate or replace
Blade improperly guided by insert
Check and correct
Improperly clamped workpiece
Check and correct
Excessively hard material surface
Soften material surface
Excessive cutting rate
Reduce cutting rate
Non-annealed workpiece
Replace with suitable workpiece
Insufficient or lean cutting fluid
Add fluid or replace
Vibration near machine
Relocate machine
Non-water soluble cutting fluid used
Replace
Air in lift cylinder
Bleed air
Broken back-up roller
Replace
Use of non-specified saw blade
Replace
Fluctuation of line voltage
Stabilize
Adjustable blade guide arm too far
Bring blade guide arm close to
from workpiece
workpiece
Loose blade guide
Tighten
Blue or purple saw chips
Reduce cutting rate
Accumulation of chips at inserts
Clean
Reverse positioning of blade on machine Re-install
Workpiece not bundled properly
Re-bundle
Back edge of blade too hard against
Adjust wheel so that blade is just
flange
firmly against flange
Use other machine, suited for
Workpiece of insufficient dia.
diameter of workpiece
Saw blade teeth worn
Replace
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16
6.2 Minor Operating Troubles and Remedies
Symptom
1. Buttons do not
function
Probable Cause
Remedy
(1) Power disconnected
(1) Connect
(2) Circuit protector OFF
(2) Turn on
(3) Thermal relay activated
(3)Push reset button
(4) Safety interlocks that is
a. Load workpiece
a. No workpiece is clamped in the vice. b. Depress FRAME RAISE button
b. The saw frame is not fully raised to
c. Depress QUICK APPROACH
the height preset.
switch
c. The saw frame is raised too high so
that the upper limit switch has been
touched
2. The saw frame (1) Solenoid valve blocked.
descends out of (2) Piping leakage
sequence
(3)Packings , O-Rings of cylinder worn or
torn
(1) Disassemble the valve and clean
thoroughly.
(2) Inspect hydraulic piping
(3) Replace
3. Short service
life of wire
brush
(1) Wire brush too heavily in contact with
saw blade.
(1) Re-position the wire brush.
4. Bubbles out of
fluid taps
(1) The cutting fluid is not sufficient
(2) The filter clogged by swarf
(1) fill up take.
(2) Clean the tank and filter.
17
7. REFERENCE CHARTS
7.1 Standard Cutting Chart
Material
JIS code
S20C-S50C
S9CK-S15C
S53C-S58C
SS-50
SS-41
SM-50
SCM-3
SCR-3.4
SNC-22
SNC-1
SNCM-22
SK-4
SUL-2
SKS-5
SKH-2
SUH-33
SKD-61
SKD-1
SUS-27
SUS-32
Blade Pitch
TPI
3M
3M
3M
3M
3M
3M
3M
3M
3M
3M
3M
3M
3M
3M
3M
3M
3M
3M
3M
3M
Blade Speed
m/min
80
80
68
80
68
80
68
54
54
54
54
54
40
54
27.40
27.40
27
27
27.40
27.40
Cutting Rate
Sq c ㎡/min
50-70
42-60
42-60
42-60
40-55
40-55
45-60
40-50
35-45
40-50
35-45
30-40
25-35
25-35
25-35
25-35
15-25
8-20
8-20
8-20
Service Life
Sq c ㎡/PCE
42000-58000
38500-54000
35000-58000
38500-58000
35000-54000
35000-54000
31000-54000
30000-50000
28000-50000
31000-50000
27000-50000
26000-50000
26000-44000
25000-42000
19000-31000
16000-23000
15000-23000
10000-20000
10000-20000
10000-20000
NOTE:
(1) All conditions described above are based on the use of high speed steel saw blade.
(2) The workpiece is 150 mm round and solid, normalized heat treatment, and there are no
hard spots in the material.
(3) The cutting surface concave or convex by 1.0mm is permitted.
(4) The indicated service life of a saw blade stated is based on an average value spread over
results from 10 saw blades.
(5) The selection of a correct blade for any one type and size of material being sawn is largely
dependent upon trial and error until the desired conditions are fulfilled, i.e. finish cutting
time ,blade life, etc. However these charts are offered here for the guidance of users so that
these conditions may be obtained.
18
7.2 Standard Cutting Chart
Material AISI
code No.
1108-1111
1112-1118
1115-1132
1137-1151
1212-1213
Brinell
hardness Bhn
150-175
125-150
140-165
155-180
150-175
Blade speed
fpm
220-260
240-270
220-260
180-200
240-270
Cutting rate
Sq in/min
9.0-12.0
10.0-14.0
9.0-12.0
5.0- 8.5
10.0-14.0
1008-1013
1015-1035
1040-1064
1065-1095
1320-1330
150-175
160-175
160-180
180-205
200-220
220-260
240-270
180-210
120-140
140-180
7.0- 9.0
8.0-12.0
6.0- 9.0
5.0- 6.5
5.0- 7.0
1335-1345
23172330-2345
2512-2517
3115-3130
200-220
180-190
180-220
200-220
180-220
140-180
150-190
130-170
120-160
150-190
5.0- 6.5
5.0- 6.0
4.0- 5.0
3.5- 4.5
5.0- 7.0
3135-3150
3310-3315
4017-4024
4027-4042
4047-4068
190-230
200-230
170-190
180-220
190-210
120-160
130-170
180-230
180-220
170-200
4.5- 5.5
3.5- 4.5
4.5- 5.5
4.5- 5.5
3.5- 4.5
4130-4140
4142-4150
4317-4320
4337-4340
4608-4621
190-215
200-230
200-225
230-250
190-210
180-220
130-180
170-210
130-180
180-210
4.5- 6.0
3.5- 4.5
4.0- 5.0
3.5- 4.5
4.0- 5.0
4640
4812-4820
5045-5046
5120-5135
5140-5160
190-230
220-240
170-190
180-200
200-220
130-170
130-170
180-220
150-190
160-200
3.5- 4.5
3.0- 4.0
4.0- 5.5
4.0- 5.0
4.0- 5.0
50100-52100
6117-6120
6145-6152
8615-8627
8630-8645
210-230
180-210
180-210
160-190
190-220
80-110
130-170
130-170
130-180
130-180
3.0- 4.0
4.0- 5.0
3.5- 4.5
3.5- 4.5
3.5- 4.5
8647-8660
8715-8750
9255-9260
9261-9262
9310-9317
190-220
180-215
150-180
200-230
210-240
120-160
140-180
120-160
110-150
110-150
3.0- 4.0
3.5- 4.5
2.5- 3.5
1.5- 2.5
1.5- 2.5
9437-9445
9747-9763
9840-9850
175-200
180-220
210-250
150-190
130-180
130-180
3.5-4.5
2.5-3.5
3.5-4.5
19
7.3 Standard Cutting Chart
Material AISI
code No.
302,304
303,303F
308,309,310
314,317,330
316,420
Brinell
blade peed
hardness Bhn
fpm
Stainless Steels
80-90
130-170
150-200
90-100
160-220
60-80
160-220
50-80
160-220
70-80
90-100
165-200
100-110
140-185
155-195
140-150
170-215
60-80
70-80
160-190
175-215
90-100
High-speed Tool Steels
T-1,T-2
217-248
80-90
T-4,T-5
235-255
75-85
T-6,T-8
220-293
60-80
T-15
228-255
50-80
M-1
217-228
100-120
M-2,M-3
217-241
75-85
M-10
217-228
60-80
Tool Steel (Air, Oil, And Water Hardening)
217-241
140-170
A-2
75-85
217-241
D-2,D-3
60-80
D-7
228-255
140-170
187-207
O-1,O-2
140-160
207-228
O-6
170-190
156-187
W-1 special
156-196
170-190
W-1 extra
156-196
170-190
W-1 regular
140-160
H-12,H-13,H-21
205-228
217-241
100-120
H-22,H-24
177-212
150-170
S-1
S-2,S-5
173-228
80-100
L-6
190-230
150-170
110-130
L-7
180-230
321,347
410,420F
416,430F
430,446
440,A,B,C,
440F,443
Cutting ate
sq in/min
2-3
3-4
1-2
1-2
2-3
2-3
2-3
4-6
2-3
2-3
2-3
2.0-3.0
1.0-2.0
1.0-2.0
1.0-2.0
3.0-4.0
2.0-3.0
1.0-2.0
2.0-3.0
2.0-3.0
1.0-2.0
4.0-5.0
5.0-6.0
3.0-4.0
3.0-4.0
3.0-4.0
3.0-4.0
2.0-3.0
3.0-4.0
2.0-3.0
4.0-5.0
3.0-4.0
NOTE: (1) All conditions described above in chart 2 and 3 are based on the use of Electron Weld
Bimetal Blade. 4/3 T.P.I.
(2) The workpiece is 6 inch round and solid ,normalized heat treatment ,and there are no hard
spots in the material.
(3) The cutting surface concave or convex by 1.0mm is permitted.
(4) For production Band and Super Electron Weld ,speed may usually be increase up to 10﹪.
(5) Decrease speeds by 50﹪for NEO_TYPE and CARBON Bands.
(6) As a guide that "The larger workpiece (compare to the 6 inch),the slower blade speed."
20