1.

General

1.1 Preface
We feel very thankful for your esteemed company to purchase

SJLM-CR-Z100/180/125/80-2500mm Plastic Extrusion Cast Film Line, with the

purchase of the Huabao Machinery, you can enjoy good after-sales service and

all-round technical supports from experienced experts. Were there any doubts, you

can contact our headquarters directly.

This handbook provides users with information about installation, wiring and daily

maintenance. Prior to operation, this manual should be read carefully and properly

kept by users of the machine so that you can undertake proper installation and

operation, and bring its performance to full play.

★Notices:

This machine consists of electric devices, high temperature components and

transmission devices; Transmission devices consist of belt, motor and other dynamic

fittings. Only under the on-site supervision of trained specialists, should any attempt

to operate or adjust the machine be made. No attempts by untrained personnel may

be allowed. Such operations as blaze incision or jointing near the machine are

absolutely prohibited, if the protective cover and other protective measures are not in

place.

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 Confirm when opening the packing case: whether there is any damage on the product;

whether the nameplate conforms to your order. The products have been undergone

strict inspection in the process of manufacture and packing by our company; please

contact our company immediately if you spotted any pretermission.

Owing to our commitment to continuous improvement of products, alterations to the

manual will be tolerated without further notice.

1.2 Product Introduction

This unit uses LLDPE (Linear Low-density Polyethylene)LDPE、HDPE as main

raw materials and adopts world advanced and absorbed technology to produce

one-side adhesive stretch wrapping film with self-sticking. The film has strong tensile

strength, anti-punctured and impact strength, good shrinkage and self-sticking, can

make goods integrity to avoid breaking when transporting. It is beautiful, generous

and economic, could replace hot shrinking packaging film for transportation and

extensively apply to palletized packing of conventional goods。

1.3 Safety Warning and Management

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1.3.1 Safety Warning

 If the noise around the extruder main motor over 75db during the machine

running, the worker who works around machine for a long time must wear

protective clothing to prevent from reducing hearing.

 The emergent stop button must mount at the obvious places so that the

machine can be stopped immediately when an emergency happens.

 The safety equipments around the operator shall be checked in time to ensure

their function.

 The protective gloves must be worn all the time because the heating parts are

very hot during preheating or operating.

 The fire-protection and ventilation system shall be checked in time before

operating the machine to ensure the safety.

 Any part of the machine must be opened or maintained by trained personnel.

 Please do not approach the heating parts of extruders without wearing the

gloves.

 Please do not put anything on the machine otherwise it will drop into the

machine when starting the machine and damage the machine.

 Please do not touch any switch or button devices related to electricity when

your hands are wet.

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1.3.2 Safety Management

 The safety warning system shall be set at necessary places to prevent

accident.

 Set danger, warning, prompt three kinds of plates.

 The safety settings are as follow:

 Danger—maybe cause sudden death of personnel

 Warning---maybe cause serious personal injuries or machine

damage.

 Prompt—maybe cause injuries to bodies or production stop.

Danger Avoid burning Beware of electric shock

Careful for cutting hands Careful for pressing hands by rollers Careful for pressing hands

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 Careful pressing hands by belt Earthing

1.3.3 Safety Standard

 General Safety Standard

 The operation and maintenance must be done by trained personnel,

please pay special attention to the safety setting.

 Safety rules must be complied with during the whole operation and

maintenance.

 No matter what transportation, please handle with care, no serious

wobbling, and no collision, avoid damaging machine and endangering

personnel safety.

 To ensure the safety of workers and machine, please strictly do every

step according to the safety method required. The control part shall be

set at the easy-to-operate places.

 Personnel Safety Rules

The long-hair worker shall wind-up the hair to avoid being winded into the

machine.

Please do not wear too loose clothes.

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 The operator must wear protective clothes if necessary, for example: head

cap, gloves, ear protector, dust mask and so on.

 Safety Operation Rules

Please ensure that the raw materials entering into machine are purified, do

not allowed to mix other impurities into the raw materials.

Please ensure that there are enough raw materials in the hopper during

themachine is running.

 Please do not start main motor if there is no raw material in the barrel,

otherwise the rotation of screw will damage the screw or other parts.

 Safety Maintenance Rules

 Please cut off the power supply when maintenance, live working is not

allowed.

 The operator shall pay regard to safety during machine running and avoid

human injury.

 The old parts must be replaced by the same new parts.

 The protective clothes (hat, gloves, mask and so on) must be worn when

maintenance.

 When carrying parts by crane or other device, no personnel is allowed to

stand under crane in order to prevent accident.

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2.Specifications

2.1 Technical Parameter

A、Products to be produced：PE stretch film PE cling film

B、Width of Film：2000mm

C、Thickness of Film： 0.017—0.05mm

D、Raw Materials： LLDPE mLLDPE

E、Film layer structure： d/A/B/C/B/C/d

F、Distribute proportion：10%/32.5%/12.5%/32.5%/12.5%

G、Outpuy (max)： 23 ton/24h

H、Mechanical Linear Speed： 600 m/min

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2.2 Equipment Specifications

2.2.1Extruder part

1) Extruder “A”
a) Screw

Specifications of screw:：Φ100mm L/D Ratio:30/1

Material of screw: 38CrMoALA high-quality alloy steel, surface nitrogen

treatment.

b) Machine barrel

Material of the machine barrel: 38CrMoALA high-quality alloy

steel, internal and external surface nitrogen treatment.

Heating mode: using stainless steel ceramic heating.

Cooling mode: 5 sets of low-noise blowing machines of 0.25KW

Temperature control: automatic temperature control with a total of 5 zones

by using smart dual-digital-display adjuster linked with SSR solid relay.

Electrothermal capacity: 6.6KWx 5 zones,

c) Hopper seat

Mode: central feeding

Type of cooling: Forced cooling by circulating water

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 Material: cast iron

d) Reduction gearbox

Gear mode: high rigidity hard teeth tilted gear

Lubricating system: forced lubricating

Cooling system: natural cooling by circulating wate

e) Motor power: 85KW Servo Motor

f）Screen Changer

Screen changing mode:：hydraulic pressure screen changing

Temperature control: automatic temperature control with a total of 2 zones by

using smart dual-digital-display adjuster linked with SSR solid relay.

Heating mode: adopting stainless steel electrothermal tube

Electrothermal capacity: 3.5KW,

g)Connecting device

Material: made of high-carbon steel

Temperature control: automatic temperature control with a total of 1 zones by

using smart dual-digital-display adjuster linked with SSR solid relay.

Heating mode: adopting stainless steel electrothermal tube and chip

Electrothermal capacity: 4KW,

2) Extruder“B”
a) Screw

Specifications of screw: ф180mm L/D ratio: 30/1

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 Material: 38CrMoALA high-quality alloy steel, surface nitrogen treatment.

b) Machine barrel

Material: 38CrMoALA high-quality alloy steel, internal and external surface

nitrogen treatment.

Heating mode: using stainless steel electrothermal chip

Cooling mode: 8sets of low-noisy blowing machines of 0.55KW

Temperature control: automatic temperature control with a total of 8 zones by

using smart dual-digital-display adjuster linked with SSR solid relay.

Electrothermal capacity: 12KWx 8 zones

c) Hopper seat

Mode: central feeding

Type of cooling: Forced cooling by circulating water

Material: cast iron

d) Reduction gearbox

Gear mode: high rigidity hard teeth tilted gear

Lubricating system: forced lubricating

Cooling system: natural cooling by circulating water

e) Motor power:355KW Servo motor

f) Screen changer

Screen changing mode:hydraulic pressure screen changing

Temperature control: automatic temperature control with a total of 2 zones

by using smart dual-digital-display adjuster linked with SSR solid relay.

Heating mode: adopting stainless steel electrothermal tube

Electrothermal capacity:10.5KW，

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 3) Extruder “C”
a) Screw

Specifications of screw: ф125mm L/D Ratio: 30/1

Material of screw: 38CrMoALA high-quality alloy steel, surface nitrogen

treatment.

b) Machine barrel

Material of the machine barrel: 38CrMoALA high-quality alloy

steel, internal and external surface nitrogen treatment.

Heating mode: using stainless steel ceramic heating.

Cooling mode:6 sets of low-noise blowing machines of 0.37KW

Temperature control: automatic temperature control with a total of

6 zones by using smart dual-digital-display adjuster linked with SSR solid

relay.

Electrothermal capacity: 9KWx 6 zones

c) Hopper seat

Mode: central feeding

Type of cooling: Forced cooling by circulating water

Material: cast iron

d) Reduction gearbox

Gear mode: high rigidity hard teeth tilted gear

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 Lubricating system: forced lubricating

Cooling system: natural cooling by circulating water

e) Motor power: 155KW Servo motor

f)Screen Changer

Screen changing mode: hydraulic pressure screen changing

Temperature control: automatic temperature control with a total of 2 zones by

using smart dual-digital-display adjuster linked with SSR solid relay.

Heating mode: adopting stainless steel electrothermal tube

Electrothermal capacity:4KW,

g)Connecting device

Material: made of high-carbon steel

Temperature control: automatic temperature control with a total of 1 zones by

using smart dual-digital-display adjuster linked with SSR solid relay.

Heating mode: adopting stainless steel electrothermal tube and chip

Electrothermal capacity: 4KW,

4) Extruder “D”
a) Screw

Specifications of screw: ф80mm L/D Ratio: 30/1

Material of screw: 38CrMoALA high-quality alloy steel, surface nitrogen

treatment.

b) Machine barrel

Material of the machine barrel: 38CrMoALA high-quality alloy

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 steel, internal and external surface nitrogen treatment.

Heating mode: using stainless steel ceramic heating.

Cooling mode:5sets of low-noise blowing machines of 0.25KW

Temperature control: automatic temperature control with a total of

5 zones by using smart dual-digital-display adjuster linked with SSR solid

relay.

Electrothermal capacity: 5KWx 5 zones

c) Hopper seat

Mode: central feeding

Type of cooling: Forced cooling by circulating water

Material: cast iron

d) Reduction gearbox

Gear mode: high rigidity hard teeth tilted gear

Lubricating system: forced lubricating

Cooling system: natural cooling by circulating water

e) Motor power: 51KW Servo motor

f)Screen Changer

Screen changing mode: hydraulic pressure screen changing

Temperature control: automatic temperature control with a total of 1 zone by

using smart dual-digital-display adjuster linked with SSR solid relay.

Heating mode: adopting stainless steel electrothermal tube

Electrothermal capacity:3KW,

g)Connecting device

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 Material: made of high-carbon steel

Temperature control: automatic temperature control with a total of 1 zones by

using smart dual-digital-display adjuster linked with SSR solid relay.

Heating mode: adopting stainless steel electrothermal tube and chip

Electrothermal capacity: 4KW,

（2）Co-extrusion distributor

a) Layer distribution: d/A/B/C/B/C/d

b) Distribution proportion:10%/32.5%/12.5%/32.5%/12.5%

c) Temperature control: automatic temperature control with a total of 1

zone by using smart dual-digital-display adjuster linked with SSR solid

relay.

d) Heating mode:using stainless steel electrothermal tube

e) Electrothermal capacity：4KW、

（3）Die Head

a) Die head width: 2720mm

b) Material: 5CrNiMo

c) Die structure: clothes rack type design, runner electroplated with hard

chrome and with mirror-surface polishing (the surface of die body is

electroplated with thin chrome for maintenance-friendly and anti-erosion.)

d) Adjustment of width: out-block type, single side is 200mm.

e) Die gap adjustment: adjusting by fully pushing fine thread screwdriver

(adjusting capacity: 0.5mm)

f) Temperature control: automatic temperature control with a total of

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 11zone by using smart dual-digital-display adjuster linked with SSR solid

relay.

g) Heating mode: using stainless steel electrothermal tube to affect internal

heating, connections totally obturated.

h) Electrothermal capacity: 47.6KW、

2.2.2 Forming unit

a) Cooling and forming fog-face roller

Specifications of roller: ф1480x2800mm

Cooling system: screw runner, single-way system.

Motor power: 28KW Servo motor

b) Cooling molding roller

Specifications of roller: ф420x2800mm

Cooling system:adopting single input/output cooling system

Motor power: 10.5KW Servo motor

c) Cleaning ruber roller：φ210×2800mm

d) Vacuum box motor is edge suction blower with 5.5KW

e) Machine walking: 0.75KW motor

2.2.3Oscillating device

a）Specifications of guide roller：φ150×2900mm

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 b) Oscillating power:200W gear motor

c) Oscillating working range: 200mm

2.2.4 Slitting and edge cutting device

a) Mode: 4 groups of cutters

b) Edge trim: on-line crushing by crusher, and then collected to be

recycled after mixing with raw materials.

2.2.5 Take-up device

a）Take-up steel roller：φ215×2500mm

b）Rubber pressurized roller：φ175×2500mm

2.2.6Wind-up device

a) Mode: back to back frication wind-up

b) Width of wind-up:2000mm

c) Diameter of wind-up: ф450mm (max)

d) Winding frame: welded by steel board and profile steel

e) Reel mode: air-inflated shaft

f) Specifications of core: ф76 (inner)xф95mm(outer)

g) Power of winding ：12KW Servo motor

h) Power of roll changing ：7KW Servo motor

i) Cutting-off mode: automatic cutting,

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 j) Mode of winding: automatic winding by adhesive tape.

2.3Electric control device

a) Power supply control cabinet One set

b) Temperature control cabinet Five sets

c) Inverter control cabinet Four sets

d) auxiliary machine operating cabinet One set

e) Total installation capacity: 1210KW

3. Operation

3.1 Process Flow

Firstly, after being evenly mixed, the raw material is automatically sent into

hopper, enters the hopper seat and then is heated and compressed by screw into

melting state. Secondly, extrude melting rubber film by T-die, cool and shape into film

by forming unit. Thirdly, enter into oscillating unit to make the film level, and cut

down irregular edge with cutter, and on-line crushing by crusher, and then enter into

the hopper of extruder for recycling directly. After smoothing by smoothing roller,

pass the film by take-up roller to wind-up unit, and wind finished film into suitable

size, and after reaching the set meters, the film will be cut-off, and start to wind on

preparative reel. The finished film shaft will be moved manually.

In the whole process of production, it needs all aspects of knowledge and excellent

technology to ensure the quality and increase competition ability.

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3.2 Structure Specifications

This unit mainly includes extruder, screen changing device, distributor, die head,

forming unit, vacuum box, oscillating unit, edge cutting unit, wind-up device and

electric control box etc.

3.2.1 Raw Materials

High-quality products need suitable raw materials. Before producing it, the raw

materials should be dried to reduce the moisture inside plastic material. Otherwise,

the surface of product will appear ill phenomenon. Generally speaking, high-quality

products need be dried to drive away the moisture inside plastic material before

producing.

3.2.2 Extruder

The extruder mainly converts grain material into melting state, so it is very

important to possess good screw and accurate temperature control system. In this

way, raw materials will be well plasticized and heated evenly. The melting raw

materials enter into die head through elbow and pour from even die mouth to

achieve equal flowing speed and even thickness. This unit mainly is made up of

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 screw, machine barrel, transmission and heating system.

1) Screw

The screw is the main part that processes plastic and plasticizes it to be even.

Through its pre-swiveling and heating outside machine barrel, the plastic could

move, cut, mixed compress, plasticize to achieve fixed pressure, ration and

fixed temperature extrusion, which satisfies the quality request of shaping

plastic. It is made from 38CrMoAlA high quality alloy steel; its surface is

accurately treated with nitrogen, possesses high hard and frication resistance.

2)Machine Barrel

It is used for containing plastic and screw, material is 38CrMoAlA high quality

alloy steel; internal surface is accurately treated with nitrogen, and possesses

high frication resistance.

3) Heating and Cooling System

This system adopts stainless steel electrothermal chip to heat, smart

dual-digital-display adjuster to automatically control temperature, and

low-noise blowing machine outside machine barrel to cool.

4) Transport system

Frequency conversion motor drives high intension and hard teeth reducer

through shaft connecting unit to turn screw. It has compact structure and easy

operation.

3.2.3 Screen Changing Device

This device adopts manual screen changing, so it could change screen rapidly

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 and operate easily and not to leak.

3.2.4Die head

It is the forming part of the film, and through it the melting resin extruded by

extruder could produce needed product successively. Adjusting bolt could

make flowing speed equal and thickness even by adjusting; material guard

beside die mouth could make the different width of product. (The detailed

operation sees the operation instruction for die head.)

3.2.5Distributor

The distributor is used for strengthening mixing effect by adjusting the further

mixing of plastic between layered lamina and distributary pole, and makes the

temperature of melting plastic even and layered proportion suitable. The

detailed operation sees the operation instruction for distributor.

3.2.6Forming part

When raw materials enter into forming unit through die head, firstly adjust

the speed of the forming roller to match the extrusion capacity, and then the

film can cool and form. Here, the roller should be provided enough cooling

water to keep suitable surface temperature and gain good quality and level.

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 (It is better to use cooling water.) Meanwhile, adjust the blowing angle and

strength of air knife to match the extruded direction of material from die

head, which makes the film laminate evenly on forming roller, at the same

time, adjust the suction force of vacuum box to reduce air and foreign

substance between film and roller surface and increase laminating efficiency.

Avoid the film shake to gain level product.

3.2.7 Oscillating Device and Edge Cutting Device

It mainly depends on adjusting the gap of die mouth and temperature of die

head to achieve even film. But it is impossible to achieve absolute uniformity,

so tiny difference in thickness could cause wrinkle. Under such circumstance,

it is necessary to adjust the oscillating device in order to average the thickness

of the film and prevent wrinkle. So edge cutting device is used for cutting

down the waste edge, finishing the width and shaping the product.

3.2.8 Wind-up Device

The device adopts surface friction winding, winding shaft is air-inflated type,

when it gets to the setting specification, automatically cutting and roller

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 changing manually, adhesive tape is wrapped the roller so the whole process

of production now is finished.

3.2.9 Control Box

This device is made up of mainframe temperature control box , central control

box, mainframe motor control box and wind-up control box. In the light of

touch screen display and nameplate on control cabinet, press the corresponding

switch or button, the equipment will operate according to the order.

4.Installation of the Unit

 Before installing, check the machinery if damaged or absent.

 After checking the unit, choose good installing place by foundation drawing.

 When shipping, the unit needs to be disassembled and then packed, so when

installing, every part should be newly displayed by technical flowing drawing,

and then installed.

 Lay the foundation whose surface is level, smooth and firm, dispose orbit and

install every part.

 Connections between electric device

1) Connection between temperature control box of extruder

2) According to the number, connect every temperature control point of

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 extruder with host control box.

3) Connect the supply power and host control box. The supply power is

440V, 60HZ and 3 phases. The host control box and machinery must really

be connected with earth.

 Connection between auxiliary machine and control box

(1) According to the number, connect the power of every auxiliary machine

with control box.

(2) Connect supply power with electric control box of the host machine. The

supply power is 440V, 60HZ and 3 phases. The host control box and

machinery must really be connected with earth.

 Water Circulating System

Install well the cooling system of the hopper seat and speed reducer, and the

circulating system of the cooling roller.

 Air Pressure System

Connect the air compressor with windpipe by using PU soft tube.

5.Check and Operation Flow before Operation

5.1Preparation before starting machine

 Prepare and check the needed raw material if it is up to the quality standard, do

not mix metal and sand etc. into the material.

 Check if the equipment and every control box are firm and really be connected

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 with earth.

 Start the water supply valve, check if the speed reducer of host machine and

hopper seat cool normally, if the water cooling system of the forming roller

makes water, and if the cooling water circulating is expedite.

 Check the firm degree of connecting equipment and lubricating condition of

chain and bearing, adjust well the tightness degree of chain and strap, so that the

machinery could operate neatly and normally.

 Check if the oil level of the speed reducer and gear box is suitable.

 Start the power, check if the centrifugal fanner operates well.

 Every temperature control point should be fixed according to the material and

experience. When it is abnormal, for example, super-temperature or not warming,

check if the electrothermal chip or heating electric system is normal, and check if

the electrothermal couple directly be connected with measured part and the

rotary direction of cooling fanner is correct.

 It doesn’t start the extruder and drive motor to operate (about 2.5-3 hours) until

keeping the temperature 30-60 minutes after reaching the fixed value.

Otherwise, the bolt of screw connection will be damaged or hopper is distorted.

Please notice its importance.

 Start air compressor and set its pressure less than 1.1MPa, check if the pipeline

is expedite and the connection leaks. And eliminate the moisture inside tri-fold

assembly and two-fold assembly, check if they are filled with 60%-80%

lubricating oil. (It is best to use 90# transparent oil and low viscidity.)

 Check if the hopper is clean and if there is eyewinker.

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  Check if the blower of vacuum box is normal.

 Switch on the total power, check if every electronic control is normal. Check

if the power is really connected, and the equipment and control box are really

connected with earth. Note: Don’t start the

extruder motor freely, avoid the screw to be damaged by remain material.

 Check if the oscillating motor can oscillate left and right.

 Clean the working site.

5.2Operation for starting

 Start the forming device and move motor forward and backward to make it

deviate the working place.

 Identify if the electrothermal chip and tube of every temperature control point is

normal and reaches the fixed temperature.

 Start the cooling valve to cool the speed reducer of host machine and the hopper

seat.

 Start forward and backward moving motor of forming unit, when it is near the

T-die, please move it carefully. Mustn’t make forming roller touch T-die in

order to avoid the great loss.

 Start the motor of every auxiliary machine with low speed, shape the material

by forming roller, and then pull the film to reel. In this process, rubber

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 compressed roller and take-up rubber roller are working.

 Adjust the place of knife cutting (according to the width of product) and start

pellet mill.

 According to the request of products, improve step by step the speed of extruder

and adjust the linear speed of auxiliary machine to make every station normal.

 If every part of the unit is normal, make the producing and quality record, and

then could produce.

5.3 Operation for Stop

5.3.1 Emergency Stop
When being accident, press the button of “Emergency Stop” on every

electric control board. At then, all motors of extruder and auxiliary machine stop,

and all compressed rollers open, but the heating part of extruder still is working.

If needed to recover the producing, the “Emergency Stop” button must be

opened and every component restarts to produce.

5.3.2 Normal Stop

 Stop charging into hopper and turn off the material guard to prevent the

material into machine barrel.

 When the remained material is extruded from extruder, stop the motor to forbid

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 the screw reversing.

 Press the switch to start all compressed rollers, and start moving motor forward

and backward to make shaping unit move out work place.

 Change the finished product roll into disassembled place and take out the

finished product.

 Stop all motors, start every air valve to make corresponding outfit deviate work

place. Turn off the cooling water valve to stop cooling the all rollers and hopper

seat.

 Cut off all power supply, water source and air source.

 Cover forming roller and rubber roller with blanket to avoid damaging.

 Turn off general power, clean equipment and work site.

6. Maintenance and Cure for Unit

 The operation should be undertaken by the personnel that are familiar with

machine and technics, so that any accident occurs when testing run, measures

could be adopted timely to avoid from worsening the accident.

 “Emergency Stop” avoids the serious accidents for equipment and person.

While the urgent button couldn’t be used freely.

 The adjustable speed motor matching with this unit couldn’t be adjusted

abruptly; otherwise, it will damage motor or shorten the usage time.

 Before starting, the adjustable speed knob of the adjustable speed motor with

frequency conversion should be in zero.

 At the beginning, the setting temperature of extruder should be 30-50 ℃ lower

than technical temperature. After keeping 30 minutes, and then go up to

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 technical temperature; after 30 minutes for constant temperature, adjust and

start the extruder to operate.

 It is not allowed to start extruder until reaching the technical temperature.

Because the extruder that operates under without material will scrape the

machine barrel and screw.

 Don’t allow non-plastic articles (especially metal) into machine barrel.

 Clean machine barrel and screw with soft metal (such as purple copper) when

they are hot, and timely daub with paraffin to eliminate the scraping. Polish the

serious burning with royal paper but not using emery cloth and millstone etc

hard tools.

 The mouth for pouring the material from die head affects the quality of product.

Note: Clean the die head with soft metal (such as purple copper) to prevent

from damaging of the machine head and affecting the quality of the film.

 When cleaning the forming roller, please not bump and scrape the surface; and

when operating, please not drop the hard articles on the roller barrel in order to

avoid from the surface being damaged and affecting quality of the product.

 The two mutual pressurized rubber rollers should be loosened timely when stop

working.

 The gear box should be changed lubricating oil 250 hours after the first starting

machine. Later every 2500 hours changes once and the grade of oil is N220. If

the gear box is Guomao Brand, it should be changed the first lubricating oil

500-800 hours after the first starting machine. Later every 3000 hours and half

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 year at least changes once，check the lubricating oil. Lubricating oil select：when

V≤2.5m/s or the temperature environment within 35℃ -50℃，should choose

CKC320 duty industrial closed gear oil or CKD320 heavy duty industrial closed

gear oil. When V＞2.5m/s or lubricate by forced circulating oil，should choose

CKC220 duty industrial closed gear oil or CKD220 heavy duty industrial closed

gear oil。

 Check if the water pipe of water supply system breaks and rotary connection

leaks, and also check the cooling circulating system to ensure the cooling effect.

 Check if the pipeline of air system breaks and leaks.

 Check if the operation of the edge pellet mill and low-noisy blowing machine

are normal or not. Everyday Check if there is sundries on the filter screen or not,

clean one time every two weeks.

 Check the tension of strap and chain, keep proper tightness.

 Check if the temperature control is normal.

 Check if the bolt connections are loose, if yes, please tighten it timely.

 When operating, if have super-load sound, stop to examine at once and

eliminate the trouble.

 Check if all the connections of switch are good.

 Check if all the electric connection points are good.

 Check if all the heaters are normal.

 Check if all motors are clean.

 Check if all equipments are really connected with earth.

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  Electric control device should be avoided to be polluted by grease.

 Check if the oscillating motor could wiggle left and right.

 Please often clean and filter screen of centrifugal blower.

 After the forming roller is changed and adjusted the place for some reason,

newly set the place of the limit switch in order to avoid the forming roller from

scraping.

 The usage condition for the cabinet: the cabinet should be indoor, non-sunshine,

dust-free, non-erosion, non-flammable gas, non-oil fog, non-moisture, non-drop

or non-salt. The working temperature should strictly be -10℃～35℃ , and the

most suitable temperature is about 20℃.

 Strictly comply with the safety operation rules and technical operation rules,

hold own ground and often examine and maintain to ensure the normal

operation.

1、Extruder Unit

The maintenance shall be made according to the following instructions to guarantee

failure-free operation and reduce maintenance cost.

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N Operating Time (Hours)

o. Every 3000 hours or at Status Maintenance Items Remark
150 300 600
least 12 months

  In Operation Intermediate pressure gear oil N220 or

1 Regular Change oil other high quality lubricating oil with


Maintenance similar viscosity

Regular The oil level is not lower than oil

2 ! Oil level
Maintenance leveler when in operation.

□ □ □ In Operation Oil drainage

3 Regular
□
Maintenance

4  In Operation Inject oil regularly Inject No. 2 sodium based fat

Clean screw every 3-4 days, change screen every Clean die and change
5
12 hours In Operation screen

□ Regular
Control Cabinet
Maintenance

 Change Oil  Inject Oil  Clean ! Free Check

2、 Forming Unit

Maintenance Intervals Maintenance Items Remark

Name

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 All bearings in forming unit operate
Inject lubricating oil No. 2 or No. 3 calcium base grease
Bearing every 1000-2000h

Clean the body and

Initial running 300 hours N220
change oil

Every 6 months or running every 3000 The check of main oil level and oil refer

Gearbox hours Check oil to Instruction Book.

The check period is not more than 3 Change mineral oil and
Use N220 lubricating grease
years. lubricating grease

Synchron Check all the belts every 700 hours Check the tightness

ous Belt

3、 Winder Unit

Maintenance
Maintenance Intervals Remark
Name Items

All bearings in winder unit operate every No. 2 or No. 3 calcium

Bearing Inject oil
1000-2000 hours. base grease

Synchronous Belt Check all the belts every 700 hours Check the

tightness

Coat oil every one shift according to

VG100(SAE30)
Chain machine running Coat oil

Clean the body

Gearbox Initial running 300 hours and change the N220

oil

The check of main oil

Every 6 months or running every 3000
Check oil level and oil refer to
hours
Instruction Book.

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 Change mineral
Use N220 lubricating
The check period is not more than 3 years. oil and
grease
lubricating grease

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