high output mini twin screw extruder- China Factory Suppliers Manufacturers

Today, we loaded 2x40HQ export to Vietnam.

One is SHJ-50 twin screw extruder, the other is SHJ-72 twin screw extruders. Both extruders are used for making filler masterbatch.

Nanjing Jieya is a leading manufacturer of twin screw compounding extruders with over 20 years experience. We will offer you the top quality with best price.

We warmly welcome your inquiry.

Product Description
Weigh the complete feeding system (silo, feeder and bulk material) through static scales and control the discharge flow of bulk materials through variable speed motors or electric vibrators. Material is discharged from the system (via screw, vibrating tube or trough), the "loss" measured per unit of time (dv/dt) is compared to the required feed rate (preset value), the actual (measured) The difference between the flow rate and the desired (preset) flow rate generates a corrective signal through the dosing controller, which automatically adjusts the dosing rate to maintain the accurate dosing amount without process lag. When the weight measured in the silo reaches the low level of the silo (refilling), the controller will control the feeding system according to the volumetric feeding, and then the silo will be reloaded quickly (manually or automatically), and the weight loss controller will restart . In a batch loss-in-weight system, the design is similar to a continuous loss-in-weight system, however, the accuracy of the final weight of the feed (batch) cycle is higher than the actual feed amount control. The controller accomplishes fast dosing by providing a high dosing signal to the variable speed drive, then transitions to a low dosing control signal for precise control at the end of the batch. Technical parameter
Technical indicators:
Metering accuracy ≤0.5%
Ingredient accuracy ≤0.5%
Batching measurement control range 0.01-300t/h
Scope of application
Continuous stabilized soil, cement batching in concrete mixing plants, sintering quantitative control feeding, coal powder quantitative control feeding and batching of various thick slurries, etc.
Product introduction of loss-in-weight scale: the loss-in-weight feeder consists of a hopper, a feeder (single and double-shaft screw feeder), a weighing system and a regulator. During operation, the hopper, material and feeder are weighed continuously. As the material is delivered, the actual rate of weight loss is measured and compared to the desired rate of weight loss (set point). Automatically corrects for deviations from setpoint by adjusting feeder rates. Thus, the material can be fed continuously and evenly and accurately.
Applicable scope: granule, powder, calcium carbonate, talcum powder, resin film powder, flour, starch, etc. Powder gravimetric feeder: solves the problem of feeding metering and feeding with poor fluidity while pellet gravimetric feeder solve any bridging problems that may occur.

The plastic extruder is a common plastic machinery equipment, in the process of the daily operation of the extruder, the extruder will have a variety of failures, affecting the normal production of plastic machinery, the following we will analyze the extruder failure.

 

Here is the content list:

• Unstable host current

• The main motor can not start

• The head is not discharged smoothly or blocked

• The main electric starting current is too high

• The main motor makes an abnormal sound

 

Unstable host current

1. Production reasons.

(1) Uneven feeding.

(2) The main motor bearing of the plastic extruder is damaged or poorly lubricated.

(3) A section of the heater is out of order and does not heat up.

(4) The screw adjustment pad is not correct, or the phase is not correct, and the component interferes.

2. Treatment methods.

(1) Check the feeder, troubleshooting.

(2) Overhaul the main motor of the plastic extruder, replace the bearings if necessary.

(3) Check whether each heater is working properly, replace the heater if necessary.

(4) Check the adjustment pad, pull out the screw to check whether there is interference with the screw.

 

The main motor can not start

1. Causes.

(1) There is a mistake in the start-up procedure of the plastic extruder.

(2) The main motor thread has a problem, whether the fuse is burned ring.

(3) The main motor-related chain device to function

2. Treatment methods.

(1) Check the program, reboot the machine in the correct boot sequence.

(2) Check the main motor circuit.

(3) Check whether the lube oil pump of the plastic extruder is started and check the status of the chain device associated with the main motor. The oil pump is not on and the motor cannot be turned on.

(4) The inverter induction power has not been discharged. Turn off the main power and wait for 5 minutes before starting again.

(5) Check whether the emergency button is reset.

 

The head is not discharged smoothly or blocked

1. Causes.

(1) A section of the heater does not work, and the material is not plasticized well.

(2) The operating temperature setting is low, or the molecular weight distribution of plastic is wide and unstable.

(3) There may be foreign substances that do not melt easily.

2. Treatment methods.

(1) Check the heater of the plastic extruder and replace it if necessary.

(2) Verify the set temperature of each section, and if necessary, consult with the technician to increase the temperature setting.

(3) Clean and check the extrusion system and the head.

 

The main electric starting current is too high

1. Causes.

(1) Insufficient heating time and high torque.

(2) A section of the heater does not work.

2. Treatment methods.

(1) Apply hand pan machine when starting, if not easy, extend the heating time or check whether each section heater is working properly.

 

The main motor makes an abnormal sound

1. Produced by.

(1) The main motor bearing of the plastic extruder is damaged.

(2) The main motor silicon controlled rectifier line in silicon controlled damage.

2. Treatment methods.

(1) Replace the main motor bearings.

(2) Check the silicon-controlled rectifier circuit, if necessary, replace the silicon-controlled components.

 

Our company's website is https://www.njjyextrusion.com/. If you still have questions, you can contact us on the official website.

underwater pelletizing machine plays an irreplaceable role in the current industrial production process. Only when the underwater pelletizing machine is used correctly can the greatest effect be achieved.

• What problems should be paid attention to when using underwater pelletizing machine?

• What is the cause of the friction clutch failure of the underwater pelletizing machine and its solution?

• How can the underwater pelletizing machine make the pellets cut out by pelletizing have no pores?

What problems should be paid attention to when using underwater pelletizing machine?

1. Pay attention to the temperature change of the underwater pelletizing machine at any time. When touching the sliver with clean hands, the temperature should be raised immediately. Until the sliver touches your hand, it is normal.

2. When the bearing part of the reducer burns, or is accompanied by noise, it should be repaired in time and refueled.

3. When the bearing parts at both ends of the bearing chamber of the underwater pelletizing machine are hot or there is noise, stop the machine for maintenance and add butter. During normal operation, add butter to the bearing chamber every 5-6 days.

4. Pay attention to the operating rules of the underwater pelletizing machine; such as: the machine temperature is high or low, the speed is fast or slow, and it can be dealt with in time according to the situation.

5. When the operation of the underwater pelletizing machine is unstable, pay attention to check whether the gap of the coupling anastomosis is too tight, and adjust it in time to loosen it.

What is the cause of the friction clutch failure of the underwater pelletizing machine and its solution?

Reason analysis: The instantaneous starting voltage of the main motor of the underwater pelletizing machine is too low, the friction disc and the friction disc are overheated, the friction disc and the friction disc are aging, and the air pressure of the friction disc is too low, etc., which can cause the clutch to disengage.

Solution: When starting the main motor of the underwater pelletizing machine, avoid peak power consumption and reduce the feeding load. The minimum restart interval is 30 minutes; in summer, when the main motor is restarted more than twice, it should be extended. Interval time or forced cooling with a fan. Blow with instrument wind and wipe off the dirt on the surface of the friction plate and friction plate with a rag. If the underwater pelletizing machine wears a lot or the surface becomes "vitrified", replace the friction plate and friction plate. Confirm whether the air pressure value can make the friction disc and the friction plate fit together.

How can the underwater pelletizing machine make the pellets cut out by pelletizing have no pores?

One: The different materials used by the underwater pelletizing machine must be separated clearly;

Two: The products produced by the underwater pelletizing machine should be dewatered as much as possible after being crushed and cleaned;

Three: The vent hole on the screw of the underwater pelletizing machine should be unblocked.

Nanjing JlEYA has various underwater pelletizing machines that can provide the increasing of products, and make them more effective, reliable, and consistent.

Jieya team wish you Merry Christmas and happy new year.

Thanks for old customers trust and support on our twin screw extruders machines. We always keep focusing on the quality and service. And hope to establish business relationship with all new customers. Enjoy your holidays, dear!

The single screw extruder is a special reduction power device designed for plastic and rubber single screw extruder equipment. The reducer is matched with the motor. The gear parts are made of high-strength alloy steel. The gears are processed by carburizing, quenching, and high-precision gear grinding. The gear accuracy is level 6, and the tooth surface hardness is HRC58-62.

• What is the principle of single screw extruder?

• What is the current industry development of single screw extruder?

• What should I pay attention to when using single screw extruder?

What is the principle of single screw extruder?

The single screw extruder is generally divided into three sections in effective length. The effective length of the three sections is determined according to the diameter of the screw and the pitch and depth of the screw, which are generally divided into one-third of each; the last thread of the single screw extruder has been called the conveying section. It is required that it cannot be plasticized, but it must be preheated and compressed;

The second section of the single screw extruder is called the compression section. At this time, the volume of the screw groove gradually decreases, and the temperature must reach the degree of plasticization of the material. The compression produced here is from the conveying section three, and here it is compressed to one. Some machines also have Change, the plasticized material enters the third stage;

The third section of the single screw extruder is the metering section, where the material maintains the plasticizing temperature to supply the machine head, which is generally slightly higher than the plasticizing temperature.

What is the current industry development of single screw extruder?

In single screw extruder equipment, the plastic extruder is normally referred to as the main machine and the following equipment, the plastic extruder, is referred to as the auxiliary machine. After more than 100 years of development, the plastic extruder has been derived from the original single-screw extruder, a variety of models such as double-screw, multi-screw and even non-screw models have been derived. The plastic extruder (host) can be used with different plastic moulding machines such as tube, foil, holding material, monofilament, flat wire, strapping, extruding network, plate material, profile material, pelleting, cable coating, etc. are used. Suitable for different plastic extrusion production lines for the production of different plastic products. Therefore, plastic extrusion machines are today and in the future one of the most common models in the plastics processing industry.

What should I pay attention to when using single screw extruder?

(1) The material convey way of the single screw extruder mainly relies on friction, which limits its feeding performance. And it is difficult to add the powder, paste, glass fiber and inorganic fillers, so pay attention to the material used.

(2) When the pressure of the single screw extruder head is high, the reverse flow will increase and the productivity will decrease. Therefore, always pay attention to the pressure of the equipment.

(3) The surface renewal effect of the single screw extruder material in the exhaust zone is small, so the exhaust effect is poor.

(4) single screw extruder is not suitable for certain processes, such as polymer coloring, thermosetting powder processing, etc.

The single screw extruder has achieved an irreplaceable position in industrial production. Nanjing JlEYA is committed to providing various bending and rolling machines of high quality for all customers from all over the world.

Nanjing Team sincerely invite you to attend The 15th China Chongqing Rubber, Plastics Industry Exhibition.

Our booth no.: S2544

Time: May 27-30, 2021

Address: Chongqing International Expo Center 

Wish to meet you at there ;)

The extrusion system of a single screw extruder includes a screw, a cylinder, a funnel, a head, and a nozzle. The plastic is plasticized by the extrusion system into a uniform melt and is continuous under the resulting pressure through the screw of the extruder head.

• What is the relevant information about single screw extruders?

• How to improve the product quality of the single screw extruder?

• What role does the heating and cooling system play in the single screw extruder?

What is the relevant information about single screw extruders?

Each product type in the production line for single screw extruders has its operating characteristics. Only if you know their operating characteristics can you fully measure the efficiency of the machine.

Slug extruder's one of the guys. Record the operating points of single screw extruders and use single screw extruders correctly and sensibly.

The use of a single screw extruder includes several connections such as machine setup, adjustment, test run, operation, maintenance, and repair. Its use has the common characteristics of general machines, mainly in the drive engine and in the speed reduction device.

The working system of the single screw extruder, however, is the extrusion system, which has unique characteristics. When using the single screw extruder, pay particular attention to its properties.

How to improve the product quality of the single screw extruder?

1. About the extrusion product quality of the single screw extruder:

Injection extruders must conform to the raw material formula and process, the product size must correspond to the extrusion equipment and the raw materials must be sufficiently mixed and plasticized to ensure stable extrusion pressure and product quality.

2. Improve extrusion efficiency:

It is related to the selection of the single screw extruder, the screw structure, and the material properties, which are relative and must be considered comprehensively. Simple method, you can choose a larger extruder, the nozzle is opened into a nozzle and several forms.

What role does the heating and cooling system play in the single screw extruder?

The heating and cooling system of the inlet extruder consists of a heating device and a cooling device. It is a necessary condition for the smooth running of the extrusion process. The heater and cooling system shall ensure that the polymer material is melted and plasticized and that the temperature conditions during the molding process meet the process requirement.

The cooling system is generally installed in the cylinder, in the screw, and the bottom of the funnel of the inlet extruder. The cylinder cooling may be water-cooled or air-cooled. In general, small and medium extruder air cooling is used; Large series single screw extruders usually use water cooling or a combination of both. The main use of sludge cooling is a central water cooling system, the purpose of which is to increase the rate of solidification of the material, to stabilize the volume of discharges, and, at the same time, to improve product quality. The cooling system at the bottom of the funnel serves mainly to enhance the conveying effect of solids and to prevent the material particles from sticking due to the increase in temperature, blocking the material opening and impairing the supply. In general, in the case of extruders with screw diameters over 90 mm and fast-running screw extruders, a cooling device shall be installed at the bottom of the funnel.

Nanjing JlEYA has worked for many years to meet every customers’ need for single screw extruder. Just connect them.

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