Toolots NAX Series Technical manual

NAX-Series Horizontal Saw Band Machine Tool with Pillar
Operation Instruction
Max. Cutting Diameter: Unit: mm
Factory Serial No.:

2
Catalog
1、
ImportantNotes
……………………………………………1
2、
Main Application
……………………………………………3
3、
Normal Working Environment
………………………………3
4、
Main Models & Technique Parameters
…………………………3
5、
Mechanical Transmission System
………………………………3
6、
Key Structure of Machine Tool
…………………………………4
7、
Hydraulic System
………………………………………………6
8、
Electrical System
………………………………………………9
9、
Cooling System
………………………………………………12
10、
Lubricating System
………………………………………… 13
11、
Machine Tool Lifting & Installation
………………………… 13
12、
Debugging, Operation and Maintenance of the Machine Tool
… 15
13、
Common Fault Disposal of the Machine Tool
………………… 16
Safety Precautions
1、The Machine tool shall not be operated beyond the described application and working
scope.
2、Please read the operation instruction carefully before operation.

3
3、 The operator shall be professional trained to ensure safe working and avoid harm or
damage caused by false operation.
4、 The operation instruction shall be strictly followed to installate and operate the machine
tool. There should be enough space for operate and the space shall be cleaned without
obstacles to operator’s ensure safe operation and daily maintenance.
5、。 The operator should work as trained and required as the operation instruction, keeping
regular maintenance and repare to ensure safe operation conditions.
6、 Safety protection equipments must be put on the operator while working with machine
tools and should be regularly checked. It is forbidden to take the equipments off the
machine tool and prevention fence should be set if necessary.
7、All protection covers should be shut before machine tool operation while the adjustable
band saw protection covers should be near the working parts. During working, no
protective cover could be opened.
8、When removing and changing the saw blade, the machine tool should be confirmed to
have stopped working. Only then could the saw wheel protective cover be opened and the
support posted be checked to be firmly fastened. Protective gloves must be put on to avoid
puncture or hurt while changing the saw blade.
9、Highly attention that no part of the body should touch the working saw blade band or
get into the working area during the operation. It is also forbidden to take the jammed or
broken parts while the machine tool is working.
10、Gloves and loose clothes are not allowed during machine tool operation and
maintenance.
11、The parts should be checked to be firmly clamped before and during the whole sawing
working. The claming equipment should not be released until the saw bands stop working.
12、When the machine tool is working, the long and heavy parts should be firmly supported
during the cutting-in and cutting-out, preventing the fall of the cut parts and the turn-over
of the machine tool after the cutting task. Feeder and picking rack should be applied when
long materials are to be cut.
13、The power supply shall be completely cut off before the adjustment, maintenance,
repairing and cleaning of the machine tool, avoiding electric accidents.
14、The machine tool should be shut before transmission.
15、To adjust the guide arms spread, the machine tool must be shut. Then the fastening
hand wheel should be firmly fixed after the adjustment.

4
16、The power supply of the machine tool is 380V 50Hz AC Three Phase with the pressure
inflate value less than 10%. Extra power supply, grounding and leakage protection devices
should be set according to the rated capacity of the machine tool. Should there be possible
of pressure inflate and false operation, shared wiring with other equipments is not
permitted.
17、The power supply grounding must be reliable and perform well.
18、In circumstance of accident while operating the machine tool, please push the
emergency stop button.
19、The cooling liquid is harmful to human skins so that the operator should take good
protective measurements. It could not be released to the underground and must be dealt
according to environmental protection regulations. While processing, the operator could set
up protective panels to stop the cooling liquid from splashing around.
20、If the cutting chips are combustible materials, such as Magnesium and Titan, No open
flames if permitted, meanwhile, corresponding fire protection measures should be well
prepared.
21、No cutting is allowed with combustible powder composed materials such as the Carbon
Robs so as to prevent fire or exploitation.
2
、
Main Application
This machine tool is mainly applied in cutting all kinds of black metal and colored rod and
mould materials. When the processing data are put in, the cutting starts automatically. As
an ideal machine tool for piece batch cutting, it is blessed with high automatic operation
degree, simple operation, high cutting performance efficiency, less cutting false, better
geographic accuracy of the cutting piece, smaller noise etc.
3
、
Normal Working Environment
a、Over 0 Degree Centigrade surrounding environment temperature
b、Air relative humidity is no higher than 85% (media temperature should be 20+/-5
Degree Centigrade)
4
、
Machine Tool Models & Technique Parameters
Model
NAX1515
Max. Cutting Diameter
90° Φ400mm ■400*500
mm
45° Φ300mm ■:250*400
mm
Blade Speed
30.40.55.80
m/min

5
5
、
Mechanical Transmission System
The mechanical transmission system of the machine tool is shown in Picture 1.
Bearings of each part of the machine tool are listed on Table 5-1 and 5-2.
The main engine triggers the worm in the worm gear box via bands and then accomplishes
the transmission through the worm gear box to activate the active wheel. Then the passive
wheel is started by the active wheel via the saw band. The saw band accordingly works
with the active wheel to cut the parts.
Meanwhile, the hydraulic system forces the cylinder downwards, to the saw beam then falls
down to cut the parts. After the cutting, the hydraulic system forces the cylinder upwards
and the saw beam rises. At the same time, the main engine stops to prepare for the next
cycle.
Blade Size
1.3*41*5220
mm
Motor Output
4
kw
Hydraulic Pressure
0.75
kw
Coolant Pump
0.08
kw
Table height
630
mm
Machine Size(L*W*H)
2560*1600*1700
mm
Net Weight
2100
kg
Vice clamping
Hydraulic
Blade tensioning form
Maunal
Feeding cut adjust way
Hydraulic stepless
Feeding way
Manual
Hydraulic cooling way
Wind cooling
Voltage
380V 50HZ 3Phase

6
Main Structure of the Machine Tool
6.1 Deceleration Worm Gear Box Part
The part of the deceleration worm gear box lies beneath the frame. The linear speed of
the saw band is changed by the transmission band wheel which is triggered by the main
engine transmission band wheel.
6.2 Frame Part
The saw frame part is a welding combination of the iron plates, supporting the feeding
wheel, passive wheel and the transmission part of the saw band.
6.3 Machine Body
The machine body is a box-shaped welding part with a cooling water tank on the right
and a hydraulic oil tank on the left. There are four corresponding suspending loops in the
front and in the back of the body respectively, applied for lifting and moving. And there are
six tapped holes beneath for fastening the machine tool．
6.4 Working Table
The working table is equipped with the jaw and the hydraulic cylinder used for
clamping working parts. The working table supports the cutting parts to finish the cutting.
7、
Hydraulic System
7.1 Main Parameters for the Hydraulic System as below
：
Gear Oil Pump Pressure 6.3MP
Oil Pump Engine Power See Technique Parameters
Switching Valve Flow 10L/min
Overflow Valve Flow 10L/min
System Working Pressure 2.5-3.5MP
The Type, Name, Model and Quantity of the Hydraulic Unit
Unite Name
Model Type
Application Model
Quantity
Vane Pump
YB1-6
NAX151 and above
1
Gear Pump
CB-B4
NAX151 and above
1
Overflow Valve
YB-10B
NAX151 and above
1
Travel Valve
FKC-G02
NAX151 and above
1
Mag Valve
4WE6E
NAX151 and above
2
Mag Valve
3WE6B
NAX151 and above
1
Pressure Meter
Y60
NAX151 and above
1
7.3
Hydraulic Function Instruction
As shown in the following picture
：

7
夹 紧 油 缸
YA1 YA2
YA3
L
YA4 YA5
1、Release the Emergency Stop button, the oil pump starts working. Adjust the overflow
valve to push system pressure to required level.
2、Press the uplifting button. The upward mag valve and fast mag valve attract to each
other so that the saw frame rises.
3、Press the downward button and the downward mag valve and fast mag valve attract to
each other so that the saw frame falls.
4、vate, the downward valve closes. The saw nip would fall as to the speed set by the
throttle valve.
5、Press jaw clamping, the front jaw clamping mag valve closes and the jaw clamps
tightly.
6、Press jaw releasing, the front jaw releasing mag valve closes and the jaw releases.
7.4 Frequent Faults in Hydraulic System and Solutions
7.4.1 Abnormal Pressure Meter Display, Oil Foam
Causes: filter blocked; oil suction above the oil surface; high oil viscosity; air
leakage at the connection with the oil inlet pipe; wrong oil pump sealing; wrong overflow
valve performance.
Corresponding measures shall be taken according to different causes.
7.4.2 Insufficient Pressure or No Pressure
Causes: oil pump rightabout running; oil pump broken or worn; low oil viscosity.
Corresponding measures shall be taken according to different causes.
7.4.3 The Saw Frame Falls Down Automatically While in Neutral Position
Causes: inner leakage of the lifting mag valve; oil cylinder seal worn or broken
Replace mag valve or cylinder seal.
7.4.Abnormal Reaction to All Instruction
Cause: mag valve locked

8
Take off and clean corresponding mag valve
Keeping the oil clean could reduce accident and effectively prolong the service life of each
mag valve. The hydraulic oil tank shall be cleaned regularly and the oil shall be replaced.
8
、
Electric and Control System
8.1 Power Supply
The power supply for this machine tool is 380V 50Hz three-phase power.
Three sets of three-phase asynchronous motor for the main drive of the machine tool.
M1/Oil pump motor M1, M2/Sawband motor M2,
M3/Cooling water pump M3
All motor model specification and other electric unit could be found in catalog table 8-1.
线路板和变频器位于机床左前侧的电气箱内，操作面板在机床前侧。Circuit board
and frequency converter lie in the electric box at the left front of the machine tool. The
control panel is at the front of the machine tool.
Table 8-1 Electric Units List
Code
Name
Model
Spec.
Quantity
M1
Oil Pump Motor
YS7124
YT802-4
0.37KW（NAX1515）
0.75KW（and above）
1
1
M2
Key Motor
Y100M-4
Y112M-4
Y132M-6
Y132M2-6
3KW（4230）
4KW（4240）
4KW（4250/60）
5.5KW（4265）
1
1
1
1
M3
Water Pump
BD-12A
AYB-12
0.040KW（4230）
85W（4240 以上）
1
1
SQ
Travel Switch
YBLX-19/001
2
KM
Contactor
CJX1-12
36V
1
KM
Contactor
CJX1-22
36V
1
FR
Thermal Relay
JR36-20
3.2-5
1
FR
Thermal Relay
JR36-20
10-16
1
Breaker
PT14-20
3
QF
Breaker
DZ47-60
1
CT
Transformer
BK-200
1
KA
Middle Relay
JZC1-44
36V
2
Bridge Rectifier
KBPC35
1

9
SA/SB
Button
Φ22LAY-16
8
SB
Emergency Stop
Button
Φ22LAY16
1
HL
Working Light
JC-15
AC36V
1
Power LED
XDJ2
1

10
设
备
界
线
L1
L2
L3
F U1 （2 0 A）
油泵
M1
KM1
U
V
W
GB 立 柱 系 列 电器线路图（电磁阀 夹 紧 ）
F R1
M2
主 机
M3
水泵
F R 2
KM2
U V W
KM1 YA5YA4
KM2
KM2
YA3
03 0
207
SB2
205
203
201
202
V
KA1 KA1
YA1 YA2
SB4
SB3
SB2
F U3 （2 A）
0
03
953 7
202201
SB
F R2F R1
F U4 （6 A）
F U2 （2 A）
SB1
11
SA1
HL1 HL
KA2SA4
29
27
25
23
21
KA2
SA3
19
17
SA2
15 SQ1
SQ2
KA2
KM2
KM2
KA1
KA1
KM1
13
01
1
CT
SB4 KA2 KA2
KA2
211
209 213
215
桥堆 工作灯 指示灯 油泵 钳紧 主机 上升 桥堆钳紧 钳松 下降 快降 上升
8.3
Electric Control Principle for Machine Tool
Electric control is as showed in picture.
1、Connect the power supply; turn on the power switch QF. The power LED shines. Turn
on the emergency stop button SB and the machine tool has been ready for operation.
2、。Press the oil pump activate button, KM1 contactor closes and the oil pump starts
working. Press the oil pump stop button, KM1 opens and then the oil pump stops.
3、。Press the jaw clamping button, the relay KA1 closes and the jaw clamps tightly. Press
jaw releasing button, the reply KA1 breaks and the jaw releases.
4、Press main engine activate button, contactor KM2 closes and then the main engine and
water pump starts operation. Meanwhile the contactor KM2’s open contact point closes

11
with mag iron YA3, then the saw frame falls downward as in required speed. Press main
engine stop button, relay KM2 opens and the main engine and water pump stop.
5、Press uplifting button, relay KA2 closes and the saw frame starts rising. Press fast fall
button, relay KA2 opens while SB4 button closes and the saw frame falls down.
Note: The emergency button is used only for emergency stop, so please always keep
it in good condition.
9
、
Cooling and Chip-Cleaning System
Within the cooling system of this machine tool, the cooling liquid is pumped up by the
water pump from the water tank to each water nozzle. The cooling liquid would then flow
back to the tank for cycling use. Emulsified liquid is generally used as the cooling liquid
and high performance cutting fluid would be best.
Attention should be paid to keeping the water clean and clear. The chips in the water
tank and the filter should be cleaned regularly. The dregs shall be washed away while
replacing the cooling liquid in the water tank.
Before each operation, please check if there is enough cooling liquid. Please add
necessary quantity of the cooling liquid during the operation. Cutting is not allowed
without cooling liquid.
10
、
Lubricating System
The worm gear box is a key part of the machine tool’s lubrication. The worm and wheel
within the box is lubricated with Gear Oil 18# which measures about 3 kilograms. The oil
should be fully replaced after one month test and after that the replace period is generally 3
to 6 month.
The slide on the linear track, the axles of the passive wheel and thread rod shall be
lubricated manually with butter drops, generally once a month.
As to the other parts, such as the guiding track of the machine tool, the lubrication should
be carried out before each shift operation.
11
、
Machine Tool Lifting and Installation
11.1Lifting and Installation
After the product box is opened, please first check if the machine tool is complete or
broken and then find out if all the parts and technique papers are there as listed in the
packing list. Should there be broken products or shortage of parts and else issues, please
carefully confirm the responsibility. If the problems lie within our responsibility scope,
please inform our factory or the sale departments.
。As to the lifting and installation details, please check the Diagram for Machine Tool
Lifting and Installation. While lifting, wood, rubber sheets should be inserted between
cable and machine tool to avoid scraping.
11.2 Machine Tool Adjustment
Armor plates should be put under the feet of the machine tool to adjust the horizontal
degree of the machine tool working table.

12
12
、
Machine Tool Debugging and Operation
12.1 Preparation Before Debugging
Connect power supply and check if the motor is running in the right direction. Add in
adequate cooling liquid in the cooling liquid tank. Put on the saw bank.
Check if the emergency stop button works well and is reliable.
12.2 Operation Procedure Demonstration
1、Turn on the breaker in the electric box and the power led shines.
2、Turn on the emergency stop button, check if the machine is working well
according to each movement. Then stretch the saw band tightly, release the jaw to make the
saw frame rise to proper position.
3、Put on the work part, adjust it to cutting position and then close the jaw clamping.
4、Adjust the upper and down travel switches to proper positions according to
diameter of the part.
5、Turn the speed valve to the min. position, turn on the main engine and water pump.
Then adjust the saw band to proper speed according to its materials and size. When the
cutting starts, adjust the valve to proper speed.
6
、
When the cutting task is done, the saw frame would collide with the travel switch
and then the main engine stops working. The saw frame fast rise until collide with the
upper limit travel switch; the saw frame stops rising to start a new round of cutting work.
12.3 Notice for Machine Tool Operation
1、The saw shall not be set in wrong ways that the blade should be set toward the
protection cover and tooth downward.
2、Once abnormal situation appears with the machine tool during the cutting, the
operator should immediately press the emergency stop button.
3、Choose the right cutting line speed. Generally, the saw line speed should not
exceed 50m/min. However, the saw speed should also be adjusted according to different
material hardness and stretching capacity.
4、Choosing proper feeding speed would greatly prolong the service life of saw band.
13、
Common Problems and Solutions
Mechanical Transmission Problems
No.
Problems
Causes
Solutions

13
1
The geometric
accuracy of the
cut part exceed
requirement
Loose jaw
Fasten the working part
Saw band and the working
table are off plumb
Adjust working table
Saw band worn or broken
Replace saw band
2
Smoking while
cutting
The cooling liquid could not
flow out fluently
Dredge the cooling
pipes
Fast feeding
Adjust the speed
Saw backbone not straight
Rubdown or replace
3
Blue or purple
iron chips
Too fast saw band speed
Change saw band
position and slow down
saw bank speed
4
Saw Break
Too fast feeding
Measures shall be taken
according to different
situations
Saw overstretched or less
stretched
Working part unfastened
5
Cutting
Vibration
Too fast saw band speed and
feeding
Adjust the speed
Saw backbone not straight
Repair or replace
6
Active Drive
System
Spinning
Saw Band
Touches Tooth
Loose drive belt
Stretch the belt
Too much stretching tension
of saw band
Adjust stretch tension
of saw band
Too fast feeding
Adjust the speed
Bad quality cooling liquid
Replace by good
quality cooling liquid
Improper tooth gap
Choose the right tooth
Working part unfastened
Fasten the working part
Too much feed
Decrease the feed

14
7
8
Short Saw Life
High line speed
Choose right speed
Too much feed
Decrease the feed
Poor saw quality
Replace saw band
1、
ions
No.
Problems
Causes
Solutions
1
Turn on the
general switch
but no power
supply
380V power not connected
Connect power supply
Switch broken
Replace
Emergency stop button not
reset
Turn on emergency stop
switch
2
Main engine
not activated
Fuse broken
Replace fuse
Thermal relay overloaded and
not reste
Exclude overload causes
3
Speed valve
could not stop
while cutting
Speed adjustment valve
blocked
Take off and clean
Inner leakage of rising & falling
mag valve
Replace mag valve
Inner leakage of oil cylinder
Replace oil cylinder seal
4
Abnormal
cutting
movements
Corresponding mag valve
blocked
Take off and clean mag
valve
Corresponding middle relay not
connected
Replace

15
5
Saw frame not
rise after work
part is cut
Lower limit travel switch not
connected
Adjust the switch
touch-block
Lower limit travel switch worn
and broken
Replace
Rising mag valve blocked
Take off and clean mag
valve
6
Saw frame
rising could not
stop after work
part is cut
Upper limit travel switch not
connected
switch touch-block
Upper limit travel switch worn
and broken
Replace
Rising mag valve blocked
Take off and clean the mag
valve
7
All meg valve
not move
Bridge rectifier worn and
broken
Replace

16
Fuse burnt
Replace