Model
AT300
Multipurpose
Machine
INSTRUCTION MANUAL
Max. swing diameter over bed
………………… 300mm
Max. length on work piece ……………………… 500mm
Max. drilling capacity ……………………………
15mm
Width of working surface of table ………………… 150mm
Serial
No.
IMPORTANT!
● Please read this "INSTRUCTION MANUAL" carefully in order to avoid dangers
from being unfamiliar with this machine before installation and operation.
Appearance of the AT300 Multipurpose Machine
1. Safety Precautions
● Only when the machine is fixed firmly, may you use it.
● Before operation, users must check and make sure the power source is right for this
machine, especially it must be properly connected with single-phase power source.
● This machine isn't equipped with illuminant apparatus. Users must mount it
themselves. The mounted illuminator must not generate too strong light, flash light
or shadow.
● Don't use this machine in dangerous environment, and don't put it in damp or wet
places. The work place should be dry.
● Always remove chuck key before starting.
● Wear proper apparel. No loose clothing, ties, gloves, bracelets or other jewellery
which will get caught in moving parts. Non-slip footwear is recommended. Use
protective hair covering to contain long hair.
● Before operation, ensure that the drive box and the mill/drill head are covered
properly.
● Always use safety glasses. Common eyeglasses have no impact resistant lenses and
they are not safety glasses.
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● Always keep alternate cutting tools or measuring tools in place and keep work area
clean. Cluttered areas and tables invite accidents.
● Non-operators must keep a safe distance from the running machine.
● While a long work piece extends out from the back hole of spindle, please adopt a
series of safety measures to guard against the dangers coming from the vibration and
rotation of the work piece.
● Do not process a work piece exceeds the designed range.
● Always secure your work pieces, use vices and clamps-hands are no substitute.
● Always use correct tools. They are safer, do a better job and provide a superior
finish. And maintain tools to keep them sharp and clean. Follow instructions
wherever applicable.
● Only when the machine is stopped, can you change cutting tools or maintain it.
● Don't leave the machine running un-attended. Turn power off and then only leave
the machine when it comes to a complete standstill.
● SERVICE
The machine should be disconnected from the power supply before any work is
carried out. Before any further use of the machine, all parts and functions should be
checked to determine that they will operate properly.
Check for alignment and binding of moving parts, breakage or cracks in parts and
castings or any condition that may effect the correct operation of the machine. A
damaged guard or part should be repaired or replaced.
2．Main Uses and Characteristics
● This machine is a multipurpose machine, concentrates the functions of turning,
drilling and milling, suitable for processing metal, wood and other solid materials.
● It is capable of cutting cone, plane, the cylindrical surface both inside and outside
and the thread in metric or inch system and is able to drill holes, mill plane or key
grooves. This machine is widely used in small scale enterprises, repairing shops,
schools, hospitals, laboratories, individual processing industries, and even families
for making educational tools, testing instruments and arts & crafts, complex parts
and so on. Users will get satisfied products meet with their requirements from this
machine.
3. Main Structure and Feature
● This machine consists of bed, lathe head stock, drive box, mill/drill head stock,
work table, carriage, tail stock and electric motor.
● It is beautiful in shape, compact in structure, excellent in performance, handy in
maintenance, easy to operate etc.
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4. Main Specifications and Technical Data
a) Cutting
Max. swing diameter over bed
Max. length of work piece
Max. swing diameter over tool post
Spindle bore
Spindle taper
Max. cross stroke over tool post
Max. Longitudinal stroke over tool post
Metric threads Kinds
Metric pitches
Inch threads Kinds
Inch pitches
Longitudinal feed grade
Longitudinal feed on spindle tool-post
Max. stroke of tail stock sleeve
Tail stock sleeve taper
Spindle speeds Kinds
Spindle speeds range
b) Drilling
Max. drilling capacity
Distance from table to spindle nose
Distance between spindle center and column
Swivel angle of the milling head around column
Spindle speeds available
Spindle speeds range
c) Milling
Table width
Table length
T groove width on table
Max. spindle quill stroke
d) Others
Electric motor
Net weight
Overall dimension
(L×W×H)
300mm
500mm
140mm
26mm
MT.4#
160mm
100mm
14
0.5~3mm
20
11~4 1/n"
2
0.075~0.15mm/r
40mm
MT.3#
6
160~1600r/min
15mm
170~250mm
175mm
360°
12
125~1600r/min
150mm
200mm
12mm
80mm
550W/240V/50Hz or220V/50Hz(or110V/60Hz)
150kg
1100×580×870mm
3
Fig.1 Driving System Fig .
1.Motor pulley
2.V-belt
3.Idle pulley
4,5,6,8.Change gear
7.V-belt
9.Gear
10.Gear
11.Clutch sleeve
12.Input pulley
13,14.Taper 15.Small
pulley
16.V-belt
17.Rolled
18.Large pulley 19.Gear shaft
20.Clutch
21.Worm
22.Worm
23.Tail stock
24.Tail stock lead screw
25.Tool post
lead screw 26.Tool post nut
27.Longitudinal lead screw 28.Longitudinal nut
29.Cross nut 30.Crosslead screw 31.Gear 32.Triplicate gear 33.Duplicate gear
5. Driving System
Driving system consists of the main driving system (lathe spindle gearshift, mill/drill
spindle gearshift) and the feed driving system (longitudinal feed of carriage table). The
driving route is showed in Fig.1.
5.1 Main Driving System
● Lathe spindle gearshift (List 1)
It is driven to lathe spindle through v-belt by way of electric motor. By changing the
v-belts positions according to list 1, 6 possible turning operation speeds are
available.
● Mill/drill spindle gearshift (List 2 Fig .1)
It is driven to lathe spindle through V-belt by way of the electric motor. Push into
clutch 11 to engage taper gear 13 on lathe spindle with taper gear 14 on driving shaft.
The motion is driven to mill/drill spindle through V-belt 16. By changing the v-belts
positions according to list 2, 12 possible mill/drill operation speeds are available.
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5.2 Feed Driving System and Thread Cutting
Feed motion, at first, is driven to shaftⅡby way of gear 32 on spindle. Second, it is
driven to shaft Ⅲ by way of triplicate gear 32 on shaftⅡ, and last, it is driven to
longitudinal lead screw through changing gear. This is to enable the carriage table
for longitudinal feed. (See Fig 1)
● When duplicate gear 33 on shaft Ⅲ move to right, positionⅠon the label, the
longitudinal feed of the carriage table is 0.075 mm/r.(See list 3)
● When duplicate gear 33 on shaft Ⅲ move to left, position Ⅱ on the label, the
longitudinal feed reaches 0.15mm/r.
● If you change the change gear as per list 3, 14 kinds of metric threads and 20 kinds
inch threads are available.
List 1. Lathe Spindle Gearshift List
min
C D E
F
G H
C
D
E
F
G
H
160
250
400
630
1000
1600
List 2.Mill/drill Spindle Gearshift List
C
D
min
A
B
E
F
G H
AC
BC
AD
BD
AE
BE
AG
BG
AH
BH
125
160
200
250
315
400
800
1000
1250
1600
5
E
A
A
B
C
mm
E
B
C
D
D
E
Threads Per Inch
Speeds
Gear positions
Metric pitches
Speeds
Gear positions
List 3. Change Gear List
6. Electric System
The power source required for the machine is A. C. 220V/50Hz(or 110V/60Hz).
The wires in the mains lead are colored in accordance with the following order:
Green & Yellow ------------------------------------------------------------ Earth wire
Blue --------------------------------------------------------------------------- Neutral wire
Bro ---------------------------------------------------------------------------Live wire
Consult Fig.2 to make clear the wiring of the machine and wire the source plug as
below:
Connect Green & Yellow colored wires to plug terminal marked with a letter "E"
or Earth symbol
"
"
or colored Green or Green & Yellow.
Connect Brown colored wires to plug terminal marked letter “L” or colored Red.
Connect Blue colored wires to plug terminal marked letter “N” or colored Black
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PLUG SOCKET
PLUG (15A)
START
PE
PE
20A
L
Cutoff switch
(JWL2-11)
Temperature switch
Jvc-f(80+/-5d)
L
N
N
k1
Fu 20A
230v 50Hz
PE
SUGGESTION
Drill/Mill Switch
ELECTRIC ELEMENTS
ON THE MACHINE
STOP
(KJD11-10D 230V)
PE
MOTOR
MACHINE TOOL EXTERIOR LINE
k2
PE
550W
(JY7134)
MACHINE BED
Fig. 2 Electric System
7. Lubrication
No.
1
List 5. Lubrication Position List
Lubrication
Lubrication
Located positions
parts
methods
Drive box
Lubrication
oil
Lubrication
period
Gun oiling
Machine oil
Once every
day
Gears, bearing
Splashing
Machine oil
Regularly
Change
gear
2
Lathe head stock
3
Mill/drill head
stock
Worm gear,
worm
Gun oiling
Machine oil
Once every
day
4
Small carriage
Lead-screw
Gun oiling
Machine oil
Once every
day
5
Carriage
Lead screw
Gun oiling
Machine oil
Once every
day
6
Lead screw frame
Lead screw
Gun oiling
Machine oil
Once every
day
Tail stock
Lead screw,
tail stock
sleeve
Gun oiling
Machine oil
Once every
day
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See Fig.3 for all above lubrication positions. Please oil machine every time before or
after we use it. All roller bearings should be oiled regularly, and be cleared once a year.
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Fig. 3
Lubrication Positions Fig .
8. Installation and Adjustment
It asks the users to provide a rigid and strong platform for this machine. There are
four lifting pins on two sides of machine body. When lifting this machine to your
platform, level it and fix it tightly.
9. Operation and Usage
All operating parts are showed in Fig.4. When packing the machine, carriage table
and mill/drill spindles are locked tightly, before usage, except the mill/drill head
stock, you are asked to loosen the lock handles and clean the antiseptic coat with
non-corrosion kerosene. Then oil this machine as per the lubrication requirements.
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Fig. 4 Operating Parts Fig .
1. Drive box cover handle 2 .Clutch sleeve, to interchange the functions between milling/drilling
and turning 3 .Power forward/reverse/stop switch 4. Power feed engage handle 5. Gearshift
handle, matched with change gears for power feed and threading 6. Mill/drill head lock handle
7 .Work table cross manual feed hand wheel 8 .Carriage lock handle 9 .Tool post change handle
10. Tool post feed handle 11.Tail stock lock handle 12. Work table longitudinal manual feed handle
13. Tail stock sleeve feed hand wheel 14 .Tail stock sleeve lock handle 15 .Mill/drill head guard
cover handle 16. Mill/drill spindle lock handle 17 .Mill/drill micro feed hand wheel 18. Mill/drill
feed handle 19. Knob, to interchange the functions between hand wheel 17 and handle 18 (pull it
out, handle 18 is in use; push it in, hand wheel 17 is in use)
10. Maintenance
10.1 Check frequently to make sure that the v-belt is properly tightened. If it is loose,
re-tighten it for operation.
● The mill/drill head v-belts are tightened by use of the tension wheel. Slacken the nut
and slide the tension wheel along the groove until correct tension is achieved.
● The lathe head v-belts are tightened by adjustment of the positions of the two adjust
nuts along the dog bolt.
10.2. Oil this machine in accordance with lubrication requirements. The lathe head stock
should be regularly cleared and renewed its oil up to the center line of the oil
indicator. Take care of the exposed friction surfaces and lubricate them quite often.
10.3. During operation if the machine has any trouble or abnormal noise or any other
abnormal situation, stop operating immediately and check to repair it.
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