OPERATION MANUAL

FOR
WC67Y-30/1300 HYDRAULIC PRESS BRAKE

Serial No:
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WC67Y-30/1300
OPERATION MANUAL Page: 1

CONTENTS
Ⅰ.Usages and suitable scope for the machine
Ⅱ.Main technical data for the machine
Ⅲ.Main construction and machine principles
Ⅳ.Hydraulic system
Ⅴ.Electrical system
Ⅵ.Suspension and installation for the machine
Ⅶ.Adjustment for the machine
Ⅷ.Trial and operation for the machine
Ⅸ.Safety technology and maintenance for the machine
Ⅹ.Bending pressure chart
Ⅺ.Easily damaged parts for the machine
Attachment: Trouble Overcoming for the machine
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Ⅰ.Usages and suitable scope for the machine

This machine tool is used to bend the metal plates, It has the high
efficiency and bending precisions. When bending the different
thickness of materials, You should select the different V-shapes to
bend every kinds of working pieces.
The machine has a welding construction. It has enough strength
and good rigidity. Hydraulic transmission can avoid the over load
accidents which bending the different thickness or the wrong
selections of V-shapes. Also, the machine has the characteristics of
stability and handle convenience .It has the actions of point, single
and continuous strokes, and can keep the pressure. Also install the
compensating construction to ensure the higher bending precisions.
The users can order the different kinds of dies and thus can bend
different kinds of shapes of working piece. If it equipes the
corresponding equipments, The machine can work as a puncher.
The machine is widely used in the fields of aero plane,
automobile, trains, shipyard, switch plant, communicating equipment
lifting equipment, electrical, meter and other light industries fields,
and it has the high efficiency.
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Ⅱ.Main technical data for the machine

Model WC67Y-30/1300
Maximum Pressure 30Tons 300KN
Bending Length Capacity 51-3/16" 1300mm
Ram Stroke Travel 3-9/16" 90mm
Throat Depth 19-11/16" 500mm
Opening Height 12-3/16" 310mm
Amount of Ram Adjustment 4-21/64" 110mm
Table Width 4-13/32" 112mm
Table Length 51-3/16" 1300mm
Distance Between Housings 40" 1015mm
Distance From Table To Ram 23-1/4" 590mm
Distance of Back Gauge 0 to 15-3/4" 0 to 400mm
Back Gauge Length 13-25/32" 350mm
Approach Speed 3.15 in/sec. 80mm/sec.
Return Speed 3.15 in/sec. 80mm/sec.
Working Speed 0.79 in/sec. 20mm/sec.
Back Gauge Repeatability 0.0039" 0.1mm
Y Axis Repeatability 0.0008" 0.02mm
Back Gauge Motor 3/4 hp 0.55 kw
Ram Adjust Motor 0.16 hp 0.12 kw
Main Motor 5.4 hp 4 kw
Power 3-phase 220V 60Hz
Amp 20A
Hydraulic Oil Tank Capacity 32 Gal 145L
Packing Size 71" x 43.3" x 71.5" 1800 x 1100 x 1820mm
Net Weight 3528 lbs 1600 kg
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Ⅲ.Main construction and machine principles

1.Main construction
Most of machine parts are plate-welded parts, they has the high
strength, good rigidity, light weight, And transmitted by hydraulic. It
mainly consists of machine body, ram, adjusting construction of the
mechanical stopper, synchrony-twist shaft, front-support or dies,
electrical, etc.
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2.Ram and worktable

The ram and worktable are welded by steel plates.
The ram connect to the columns by guides which on the both sides
of the ram. There install the stroke control switch on the right side to
adjust the stop positions of the upper starting point. On both sides
connect to piston bars of the oil cylinders and the synchrony-twist
shaft. Thus the pressure from the cylinders can transmitted to the ram
directly and can ensure the synchronism of the movements of the
cylinders.

3.Adjusting construction for mechanical stopper.

To improve the working precision, we equipe the mechanical
stopper in both oil cylinders to ensure the lower dead point of the ram
and repeat stationing precision.
Attention: To adjust the positions of ram lower dead points. you
must stop the ram at the upper starting point, otherwise, you may
damage the machine.

4.Dies
The upper die divides into several pieces, the lower die is a whole
set, when selecting suitable V-shape slots, you can turn over the lower
dies by hanging the rings and you can get the satisfy V-shape slots.
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Ⅳ.Hydraulic system
Principle drawings for hydraulic (see drawing)

[Remark]
1.The hydraulic oil must be clean. After a longer time of using.
If the oil is not clean. You must change the oil, and washing the
filler, oil tank etc.
2.Filling the 46# hydraulic oil into oil tank till to the center of
the guage but be sure the oil level must cover the pump, Then you
could operate the motor.
3.After a month of operating, you should change the oil, Also
you must change the oil once time every half a year.
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Ⅴ.Electrical system
Detailed please see the electrical diagram
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If the machine does not pack in a box. The suspension must obey
the following suspending.
Attention: When suspending the machines, The ropes which pass
through the hanging holes should line the liner such as rubber or soft
objects to avoid to damage the points.
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Ⅶ.Adjustment for the machine

1.Adjustment for the bending angle.
In this machine, You can bending different angles of kinds of
working pieces, the Adjusting method as following.
(1) By using the mechanical stopper to adjust the lower limited
stroke, pressing the button to make the mechanical stopper shift
up-word or down-word. The bending angle will increase or
decrease.
(2) Up-stroke adjusting. To reduce the empty stroke time and
improve the productive efficiency, You can adjust the up-stroke
.
(3) Adjustment for working time
The satisfaction working time is that the upper dies are higher 3～
5mm to the lower die, when the length need to be adjusted, You
should loose the adjusting bolts of limited switch, and make it goes
up or down, And tightening the bolts, the length will increase or
decrease.
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Ⅷ.Trial and operation for the machine

1.Preparation before trial.
Before operating the machine, the operators must familiar to the
machine characteristics and its using methods.
(1) Adding 46# hydraulic oil to oil tank until to the oil mark.
(2) Checking and connecting to the power source (Do not start
machine.)to examine whether the actions of electrical elements and
the electromagnetic valve are correct.
2. Trial and Operation.
(1) Empty-running, after finishing the above procedures, you may
operate the motor for empty-running.(PLS. Paying attention to the
directions of the motor)
a. Depressing pedal switch "down", the ram goes down rapidly. At
the moment of before contacting to upper and lower dies .To release
the pedal switch, the ram stops at any positions.
b. Depressing pedal switch "UP" ,the ram goes up rapidly. After
releasing the pedal switch, the ram stops, when the ram goes up to the
top limited positions, the ram stops.
c. Adjusting the upper and lower dies to a suitable position and
fixes it.
d. Adjusting the mechanical stopper to set the bottom limited and
you can get the different bending requirements.
e. Adjusting the stopper to make the upper die to contact to the
working piece and enter into working situation.
(2) Load-running: You must add the pressure gradually and try to
bend several working pieces until you obtain the satisfaction results.
3.Several items should be checked during trials.
(1) Whether every moving parts are smoothly, such as :Ram up and
down, bending, return back quickly, mid-stopping, etc and other
operation actions.
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(2) The pump, valves should in good conditions and no heavy
noisy, The sealing rings should not link, the suitable temperature is
30 ～50°C, the Max temperature should not exceed 60°C.
(3) After removing all the problems which occurred in trial, you
could operate the machine.

Ⅸ.Safety technology and maintenance for the machine

1. Before operating the machine, the operator must read the

"Operation manual", And the operator must familiar to the construct,
Characteristics and adjustment methods of the machine.
2. For several operators, it must be confirmed that no any other
dangerous factors exist, you may depress the pedal switch.
3.The machine has high ability on loading, In normal case, the
working pieces should put on the middle of the die. If bending the
working pieces on the one end of the die, also should bend the
pieces on both die sides.
4.To select the V-shapes mouth according to the materials
thickness, the sizes of the mouth should bigger than the eight times
of the thickness of materials.
5.When bending plates at Max. pressure, to avoid to damaged the
dies, the bent length should not less than 1000mm.
6.The bending pressure should not larger than the nominal
pressure 18MPa.
7.The clearance between the upper and lower dies must be
evenness, And no any tools allowing on the worktable, And no
welding scars, Rusty, etc on any tools allow on the worktable, And
no welding scars, Rusty, etc on the surface of the working pieces.
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8.The electrical must connect to the ground.

9.Keep the machine cleaning, Attentions should paid to the
machine that any unusual phenomenon occur, You must stop the
machine and overcoming the troubles.
10.Checking and repairing the machine periodically.
11.The machine uses 46# mechanical hydraulic oil, with the
change of the temperatures, you should select the oil brand. The first
used oil brand, the first used oil should be replaced after a mouth of
using, Then, the oils should be replaced after half of a year,
Remember, when filling the new oils, the oil should be filtered.

Ⅹ.Bending pressure chart

1.The values in the chart are based on the length of 1 meter.

For example : S=2.5mm (thickness)
L=1 meter (length)
V=22mm (V-shape open)
T he value of pressure is P=20t.
2.The tensile strength of plates are based on the
σb=45N/mm2,while bending the other plates, the pressure should
multiply the following coefficient:
Green copper (soft)— 0.5 Stainless steel—2.0
Aluminum—0.5 Crmo steel— 2.0
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Attachment: troubles overcoming

Trouble phenomenon reason Overcoming methods

No oil from pump and the The moving direction is Exchanging
ram does not act not right phase-connecting
Linking from elements,
Sealing rings damaged
pipes connecting or oil Replace sealing rings
or old
cylinders
The amount of oil in Cleaning the filter or
Vibration from pipes and
tank is not enough or adding the oil into tank to
machine tool
the filter is blocked mark
The electric-magnetic
Repairing the plug of the
does not exchange the
electric-magnetic valves to
No pressure in system directions or the cores
avoid loosing or cleaning
of electromagnetic
the cores of valves.
valves are blocked.
Adjusting the valve core,
The open of the valve
and checking the open
The ram goes down too core is too small or the
amount, Improving the oil
slow oil temperature is be
temperature by empty
low 15°C
running.
The ram can not stop at
The cores of valves are
any positions and three are Cleaning the valve
blocked
advised drops down
The open of the taper
The ram goes down too To check the open amount
valve is too large or
fast or too slow by adjusting taper valve
small.
Mid-relay KA3 does not
Large sound occurs when working or the core of
To check the time-relay.
ram goes back the exchanging valve
blocked
CERTIFICATE OF QUALITY
FOR

WC67Y-30/1300 HYDRAULIC PRESS BRAKE

Serial No:
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WC67Y-30/1300
CERTIFICATE OF QUALITY Page:1

This is to certify that the quality of this machine

is well qualified after inspection and delivery of it
is permitted.

Head of Inspection Department:

Director of the Plant:
Date:
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CERTIFICATE OF QUALITY Page:2

Precision
No. Inspection Item Drawing
Allowable Errors
2500 0.08
3200 0.10
Evenness of the 4000 0.12
1
worktable surface 2500 0.02
3200 0.04
4000 0.04

2500 0.18
3200 0.18

4000 0.20

The parallelism of
water level support
surface which
2
sticking to upper
die to worktable
surface

0.04
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CERTIFICATE OF QUALITY Page:3

Precision
No. Inspection Item Drawing
Allowable Errors

Evenness of
3 the worktable 0.25
surface
 PACKING LIST
FOR

WC67Y-30/1300 HYDRAULIC PRESS BRAKE

Serial No:
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PACKING LIST Page:1

Packing List
Serial No:
WC67Y-30/1300 hydraulic press brake
Dimension(LXWXH): mm
G.W: kg
N.W: kg
No. Name Specification Quantity
1 Main body 1
2 Operation manual 1
3 Packing list 1
4 Certificate of quality 1
5 Pedal switch 1
6 Front support 2
7 Oil gun 1
8 Foundation bolts M16×400 4
9 rings 2
10 Combination ring
11 O-shape Sealing ring
12 Key
13 Coach Screw M20×90 4
Inspector:
Date: