Tag Archives: extrusion screw

China best Plastic Single Screw Gearbox for Extrusion Line gearbox drive shaft

Product Description


Product Description 

Wide Selection of Gearbox Products
The gearbox usually adopts a general design scheme, but in special cases, the design scheme of the gearbox can be changed according to the demands of the user, and it can be modified into an industry-specific gearbox. In the design scheme of the gearbox, the parallel shaft, vertical shaft, general box, and various parts can be changed


  • Absorption of very high torques and axial forces
  • No need for separate thrust housing & bearing.
  • Easy alignment (screw directly fits into the vore of gear box)
  • Easy to assemble & dismantle.
  • Very heavy duty spherical roller thrust bearing is provided.
  • Power saving. (you may save up to 20 % power.)
  • Less requirement of space.
  • For bigger sizes water cooling is provided 
  • No maintenance required except periodic oil level checking.
  • Higher productivity 



  • Twin Screw Extruder Gearboxes offer the dual shaft counter rotating. The range is available for various center distances
  • The gearboxes are available with co-rotating and counter rotating variants
  • To work under heavy loading force, the high level dissipation and oil lubrication system are provided. The axial roller type swivel thrust with the thrust bearing coupled in tandem way support the axial thrust
  • High torque and high speed output rate


Processing Characteristics of Screw Shaft:

1.Suitable suggestion on material to ensure components performance and extend lifetime of products.
2.Professional technical team can provide surveying and mapping support.
3.All components are finished by CNC machine.
4.Sophisticated quality management system ensure superior quality.

Basic Info.

Warranty: 1 year Weight (KG):
500 KG
Place of Origin:
HangZhou, China
Gearing Arrangement:
Output Torque:
Heat treatment:
High-frequency Hardening
94%~98%(depends on the transmission stage)
Customized support:OEM ODM Input/output shaft material
Wooden case
Mount position:
Flange, hollow shaft, CHINAMFG shaft
After-sale:Online 24/7 Installation Xihu (West Lake) Dis. advantage:
excellent quality
Reduction radio:
Mount Position:
Horizontal Foot Mounted Vertical
Input Speed:
Output Speed:

Packaging & delivery

Packing: wooden case packing

Port: HangZhou Port  

X helical gear units for double-screw extruders with parallel drive shafts and the same direction of screw rotation are used mainly in the manufacture of granulates and the refining of raw plastics. Other areas of application include:

  • Paint and lacquer industry
  • Washing agent industry
  • Foodstuff industry (e.g. bread, pasta)
  • Animal-feed industry (dog, cat other animal food 

Maintenance of the gearbox of the dual-screw extruder
1. The gear box of the dual-screw extruder should be well-ventilated, and the working environment temperature should be within the range of 5-35 °C.
2. Always check the oil quantity of the gear lubricating oil in the box to ensure that the transmission parts in the box are well lubricated.
3. Pay attention to check the bearing parts of the box frequently. The oil temperature of the oil tank of the transmission box should not exceed 70 ºC during operation.
4. The newly put into use gearbox needs to replace the lubricating oil after 250 hours of operation. The oil change time depends on the state of the oil. It is recommended to replace it after 4000-8000 hours of operation or once a year.
5. The gearbox of the dual-screw extruder needs to be regularly maintained and inspected once a year 

Operating Process
1. The gear on the input shaft is driven by the motor and starts to rotate.
2. The rotating input gear meshes with other gears inside the gearbox, transmitting power.
3. Different-sized gears within the gearbox are combined to form a gear train. Through continuous meshing and rotation, the high-speed, low-torque power from the input shaft gradually converts into low-speed, high-torque output.
4. The output shaft is connected to the last gear and transfers the output torque to the load.
5. Gear reduction gearboxes typically include lubrication and cooling systems to ensure smooth operation and prevent overheating and damage.
6. Our extruder gearbox converts high-speed, low-torque power into low-speed, high-torque output by changing the size ratios and meshing arrangements of different gears, achieving the function of speed reduction.

Types of Gearboxes:
Based on customer requirements, gear reduction gearboxes can be classified according to the size of the output shaft, center distance of the output shaft, output speed, and torque. Alternatively, we can provide several commonly used types of gearboxes for customers to choose from.

Product Service

24-hour Hotline


No matter when and where

to call we can find our service to you.



Pre-sales Consultation


We have 5 sales people online,

and whether you have any question

can be solved through online


After-sales Services


Receive products have any

questions about the product,

can look for us,we will help

you deal with the the first time,to your satisfaction.



Company profile
ZheJiang Arrow Machinery Co., Ltd.is a company specializing in R&D, production, sales, application promotion of food engineering projects. As 1 of the largest scaled food processing equipment &whole plant engineering problem solvers in China, machines served for more than 970 companies, export to 116 countries, area, more than 20 years engineering team, we recognize that quality equals value, aims to create a great future together with global customers.



1.  Q: How about Arrow Machinery?

     R: ZheJiang Arrow Machinery Co., Ltd. is a High-Tech company. Our firm is composed of a strong  

        team which has substantial experience in R&D, manufacture, technique and sales service and has

        specialized in extruder industry for 10 years,leading screw barrel manufacturer in China.
2. Q:What’s Arrow machinery’s capacity? 
    R:Company is in strict accordance with CE and ISO9001 quality certification system.There are over 200

       models of extruders and spare parts. 

3. Q:What’s the delivery time? 

    R:For regular size, we have finished stock and semi-finished stock, 2 weeks max enough

        for customized, normally within 20days .

4. Q:How about the gearbox quality and price? 
    R: top quality in China with competitive price and globle after-sale service
5. Q:what’s the life time and guarantee buy from Arrow machinery ?
    R: 3~5years life time for nitriding ones and bimtallic ones will be longer 
        One year min. Guarantee.
6.Q:Where is Arrow Machinery factory and how to reach there? 
   R:NO.47 Chengbohu Road, Xihu (West Lake) Dis. District,HangZhou City, China. You can take the train or plane to HangZhou and we can pick        you up.
7.Q:How to contact with you? 
   R:just reply to me if have any question. 

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Application: Motor, Machinery
Function: Distribution Power, Change Drive Torque, Change Drive Direction, Speed Changing, Speed Reduction, Speed Increase
Layout: Three-Ring
US$ 3600/Piece
1 Piece(Min.Order)


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Customized Request

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Estimated freight per unit.

about shipping cost and estimated delivery time.
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Initial Payment

Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.


How to Calculate Gear Ratio in a Gearbox

Gear ratio is a fundamental parameter in a gearbox that represents the ratio of the number of teeth between two gears. It determines how much the output gear rotates in relation to the input gear. The formula to calculate gear ratio is:

Gear Ratio (GR) = Number of Teeth on Output Gear / Number of Teeth on Input Gear

Here’s a step-by-step guide on how to calculate gear ratio:

  1. Identify the input and output gears in the gearbox.
  2. Count the number of teeth on the output gear (the gear connected to the output shaft).
  3. Count the number of teeth on the input gear (the gear connected to the input shaft).
  4. Plug the values into the gear ratio formula: GR = Number of Teeth on Output Gear / Number of Teeth on Input Gear.
  5. Calculate the gear ratio by performing the division.

The gear ratio provides insight into how much the input gear needs to rotate to achieve a certain rotation of the output gear. It influences torque, speed, and direction of rotation in the gearbox.

China best Plastic Single Screw Gearbox for Extrusion Line   gearbox drive shaft	China best Plastic Single Screw Gearbox for Extrusion Line   gearbox drive shaft
editor by CX 2024-04-11

China OEM Twin Screw Extruder Gearbox for Extruder Extrusion with Great quality

Solution Description

SHTDN Twin Screw Extruder Gearbox



Twin Screw Gearbox Attributes

— Higher Velocity
—Triaxiality parallel design and style enhance B axis bearing ability.
—Challengling manufacture and practical assemply.Larger the expense.
—Modular construction layout achieve 2 varieties of gearbox torque quality.


Twin Screw Gearbox Introduction


Twin Screw Gearbox adopting newest standard ISO1328,the precision of cylindrical equipment of spherical involute, and combining our long phrase experience and specialty of twin-screw extruders, SHTDN gearboxes are meticulously made with prime advanced planning tips in the planet for co-orientated CZPT twin-screw extruders, with totally independent Mental Residence Rights.
The gears are made of carburizing steel of higher-energy alloy of excellent quality by carburizing and quenching for tooth, of which all the gear grinding processes are finished by imported equipment grinding devices. Gear parameters are optimized and specifically designed for the qualities of twin screw extruders, lowering tension focus on root of gear and strengthening gear surface area situations. We have enhanced gear intension of flexural exhaustion, exhaustion toughness and ratio of broad diameter. We have also adopted the most current designing concept and engineering of heating therapy for the composition of gears, thus ensured gears from uniformity of precision and strength.


SHTDN High Torque Gearbox Information Desk




Production Process



Our Support



Packing&Shipping and delivery


Packing Details: According to your order quantity packaging,delivery wooden containers,air carton.

Supply Information: 5-40days after order.







How extended does it just take to get my items considering that I paid for them?

—In accordance to yout get quantity,we will give you a reasonable shipping date.


Can I get the guarantee of 1 calendar year for cost-free?

—If you need the warranty,you need to spend for it.If not,do not be concerned ,we have self confidence in our goods.


How is your soon after-sale service?

—You will get our support in time as prolonged as you find something wrong about our produces.Think us,you are worthy of the greatest.


How extended will your item very last?

—I am sorry that I can not properly response your query,which is really distinct from your operation time,components and components.

Get in touch with us


Selecting a Gearbox For Your Software

The gearbox is an essential element of bicycles. It is employed for several purposes, which includes speed and force. A gearbox is utilised to accomplish one particular or the two of these targets, but there is always a trade-off. Escalating velocity raises wheel velocity and forces on the wheels. Similarly, rising pedal drive increases the drive on the wheels. This tends to make it less difficult for cyclists to accelerate their bicycles. Even so, this compromise tends to make the gearbox less effective than an perfect 1.


Gearboxes come in diverse dimensions, so the dimensions of your unit is dependent on the variety of stages. Employing a chart to figure out how several levels are required will aid you establish the dimensions of your unit. The ratios of person phases are normally greater at the best and get scaled-down as you get closer to the very last reduction. This information is important when picking the proper gearbox for your application. Nonetheless, the proportions of your gearbox do not have to be precise. Some producers have guides that outline the needed dimensions.
The support element of a gearbox is a mixture of the essential dependability, the genuine services condition, and the load that the gearbox will endure. It can variety from 1. to 1.4. If the support aspect of a gearbox is 1., it means that the unit has just ample capacity to meet up with your wants, but any further specifications could result in the unit to fail or overheat. Nevertheless, services elements of 1.4 are typically ample for most industrial programs, given that they reveal that a gearbox can endure 1.4 times its application need.
Distinct measurements also have diverse shapes. Some types are concentric, even though others are parallel or at a right angle. The fourth variety of gearbox is known as shaft mount and is employed when mounting the gearbox by foot is not possible. We will go over the diverse mounting positions later on. In the meantime, keep these dimensions in mind when deciding on a gearbox for your software. If you have space constraints, a concentric gearbox is typically your ideal option.


The style and construction of a gearbox entails the integration of numerous components into a single framework. The parts of a gearbox need to have sufficient rigidity and adequate vibration damping properties. The design tips observe the approximate values for the components and suggest the creation method. Empirical formulation ended up employed to decide the proportions of the a variety of components. It was discovered that these methods can simplify the design procedure. These techniques are also utilized to calculate the angular and axial displacements of the factors of the gearbox.
In this undertaking, we utilized a 3D modeling application called SOLIDWORKS to create a 3-D model of a gear reducer. We utilised this software program to simulate the construction of the gearbox, and it has potent design and style automation equipment. Though the gear reducer and housing are separate parts, we design them as a solitary physique. To help save time, we also taken out the auxiliary factors, such as oil inlets and oil degree indicators, from the 3D model.
Our strategy is based on parameter-optimized deep neural networks (DBNs). This model has the two supervised and unsupervised understanding abilities, allowing it to be self-adaptive. This method is outstanding to conventional techniques, which have poor self-adaptive feature extraction and shallow network generalization. Our algorithm is capable to understand faults in various states of the gearbox employing its vibration sign. We have tested our product on two gearboxes.
With the help of innovative content science systems, we can now manufacture the housing for the gearbox employing large-good quality steel and aluminium alloys. In addition, superior telematics methods have increased the response time of makers. These systems are envisioned to produce great chances in the coming many years and gasoline the progress of the gearbox housing market. There are several diverse methods to build a gearbox, and these techniques are very customizable. In this examine, we will think about the design and design of numerous gearbox sorts, as properly as their parts.


A gearbox is a mechanical unit that transmits power from a single equipment to an additional. The diverse varieties of gears are known as planetary gears and are utilised in a variety of purposes. Depending on the type of gearbox, it may be concentric, parallel, or at a proper angle. The fourth kind of gearbox is a shaft mount. The shaft mount kind is used in apps that are not able to be mounted by foot. The different mounting positions will be talked about later.
Many design and style guidelines recommend a support factor of 1., which needs to be altered dependent on true services circumstances. This element is the combined measure of exterior load, required trustworthiness, and general gearbox daily life. In common, released service aspects are the least needs for a particular application, but a increased worth is necessary for serious loading. This calculation is also suggested for higher-velocity gearboxes. Nevertheless, the services aspect need to not be a sole deciding issue in the assortment approach.
The 2nd gear of a pair of gears has far more enamel than the first gear. It also turns slower, but with higher torque. The second equipment usually turns in the opposite route. The animation demonstrates this change in route. A gearbox can also have a lot more than 1 pair of gears, and a initial equipment may possibly be utilised for the reverse. When a equipment is shifted from a single place to one more, the next gear is engaged and the initial gear is engaged again.
One more time period employed to describe a gearbox is “equipment box.” This time period is an interchangeable time period for diverse mechanical models that contains gears. Gearboxes are generally utilized to alter speed and torque in a variety of apps. Therefore, knowing the gearbox and its elements is important to keeping your car’s efficiency. If you want to prolong the lifestyle of your motor vehicle, be confident to check the gearbox’s efficiency. The much better its working, the significantly less likely it is to are unsuccessful.


Automated transmission packing containers are almost similar to mechanical transmission packing containers, but they also have an digital ingredient that determines the comfort of the driver. Automated transmission packing containers use specific blocks to manage shifts efficiently and consider into account details from other systems, as properly as the driver’s enter. This assures accuracy and positioning. The subsequent are a couple of gearbox positive aspects:
A gearbox produces a little amount of drag when pedaling, but this drag is offset by the improved effort to climb. The exterior derailleur method is a lot more successful when adjusted for friction, but it does not develop as tiny drag in dry conditions. The interior gearbox permits engineers to tune the shifting method to decrease braking issues, pedal kickback, and chain development. As a consequence, an interior gearbox is a great option for bikes with large-overall performance parts.
Helical gearboxes offer some advantages, which includes a lower sound amount and decrease vibration. They are also highly sturdy and dependable. They can be prolonged in modular trend, which helps make them a lot more pricey. Gearboxes are ideal for applications involving hefty masses. Alternatively, you can decide for a gearbox with multiple teeth. A helical gearbox is more sturdy and strong, but it is also a lot more expensive. Even so, the rewards far outweigh the negatives.
A gearbox with a guide transmission is frequently much more energy-efficient than a single with an automated transmission. Furthermore, these vehicles usually have reduced gasoline consumption and greater emissions than their automatic counterparts. In addition, the driver does not have to be concerned about the brakes wearing out quickly. One more benefit of a manual transmission is its affordability. A guide transmission is often obtainable at a lower value than its automatic counterpart, and repairs and interventions are simpler and less pricey. And if you have a mechanical problem with the gearbox, you can manage the gas use of your automobile with suitable driving routines.


Although selecting a gearbox for a particular software, the consumer should consider the load on the output shaft. Higher impact loads will use out equipment tooth and shaft bearings, demanding greater services elements. Other factors to contemplate are the dimensions and type of the output shaft and the atmosphere. Thorough details on these variables will support the customer select the greatest gearbox. A number of sizing applications are available to decide the most appropriate gearbox for a distinct software.
The sizing of a gearbox is dependent on its enter velocity, torque, and the motor shaft diameter. The enter pace should not exceed the needed gearbox’s ranking, as high speeds can cause premature seal use. A minimal-backlash gearbox may possibly be sufficient for a specific software. Utilizing an output mechanism of the proper size might assist enhance the enter pace. Even so, this is not advised for all programs. To choose the correct gearbox, examine the manufacturer’s guarantee and contact consumer service associates.
Diverse gearboxes have distinct strengths and weaknesses. A standard gearbox must be tough and adaptable, but it should also be in a position to transfer torque successfully. There are various sorts of gears, including open up gearing, helical gears, and spur gears. Some of the kinds of gears can be utilised to electricity huge industrial machines. For instance, the most well-liked variety of gearbox is the planetary push gearbox. These are utilized in content managing equipment, conveyor systems, electrical power crops, plastics, and mining. Gearboxes can be used for higher-velocity apps, this sort of as conveyors, crushers, and moving monorail methods.
Provider variables determine the daily life of a gearbox. Often, manufacturers advocate a support aspect of 1.. However, the real worth may possibly be greater or reduce than that. It is frequently helpful to consider the support factor when choosing a gearbox for a specific software. A support element of 1.4 means that the gearbox can take care of 1.4 times the load necessary. For case in point, a 1,000-inch-pound gearbox would need to have a 1,four hundred-inch-pound gearbox. Provider elements can be modified to go well with diverse programs and circumstances.

China OEM Twin Screw Extruder Gearbox for Extruder Extrusion     with Great qualityChina OEM Twin Screw Extruder Gearbox for Extruder Extrusion     with Great quality