Photovoltaic industry – Bifa Conveyor

Inspection Table for assembly line

admin — Tue, 18 Mar 2025 07:16:51 +0000

Light Inspection Table Design

Technical Parameters
Workbench L	up to 2000mm(6.5′)
Workbench W	200-2000mm(7.8-78.7”)
Workbench H	up to 2000mm(6.5′)
Workbench Support Material	Stainless steel / Aluminum
Workbench Surface Material	Rubber+Density board / Stainless steel
Load Per Meter	80KG
Conveyor System	Belt conveyor / Chain conveyor / Roller conevyor Available
Other accessories	socket / drawer/ led light / fan / windpipe /storage table/ pegboard /switch/signboard
Layout Style	According to needs

What Makes Bifa's Quality Inspection Table Stand Out?

The electric roller conveyor is composed of an electric roller also called DRUM,automated rollers.Is the core component of the conveyor, which integrates the motor, reduction device, etc. inside the roller, with a compact structure. Conveyor belt, tensioning device.
As a mdr conveyor manufacturer, we have successfully provided customers with packaging mdr conveyor(motorized roller conveyor),mdr belt conveyor,automotion mdr conveyor. Of course, we are also happy to provide you or your customers with related parts, such as mdr conveyor belt, mdr roller(motorized rollers), etc….

From the perspective of dc mdr conveyor cost per foot, compared with the powered roller conveyor, under the same conveying requirements (load, speed, material), the cost is almost the same. So in terms of cost, the two are on par, but in terms of saving space, the motorised roller conveyor(mdr conveyor) is better, thanks to the compact structure of its DRUM.

Factory Workbench Video

Features & Benefits Of Inspection Tables

>> Compact structure: Small conveyors are compact in design and take up little space, making them suitable for small work areas.

>> Lightweight: Mini conveyor belt often made of lightweight materials, easy to move and reconfigure.

>> Precise control: Small conveyor belt can provide high-precision material conveying and positioning, suitable for applications that require precise operation.

>> Diversification: Bifa as a conveyor manufacturer, we can not only provide you with belt conveyor, but also design small roller conveyors, small chain conveyors, etc., to meet different material and process requirements.

>> Easy to integrate: Due to its compact design, it is easy to integrate into existing production lines or equipment, improving the flexibility and efficiency of production lines.

>> Space saving: portable(mini) conveyor belt take up little space and are suitable for material transportation in limited spaces, especially in laboratories, factories and R&D environments.

>> Flexible configuration:Mini mover conveyor design allows small conveyors to be quickly configured and rearranged as needed to meet the needs of different production tasks.

>> Versatility: It is suitable for a variety of industries and applications, including electronic manufacturing, food processing, pharmaceutical production, packaging and logistics, etc., with wide applicability.

>> Reduced energy consumption: Due to their compact and efficient design, small conveyors generally consume less energy than large conveyors, thereby reducing operating costs.

Inspection Table for assembly line最先出现在Bifa Conveyor。

mdr conveyor (Motor Driven Roller Conveyor)

admin — Wed, 15 Jan 2025 03:07:12 +0000

mdr conveyor design

Technical Parameters
Conveyor length L	up to 20m(65.6′)
Conveyor width W	200-1000mm(0.78’‘)
Speed	up to 60m(196.8‘)/min
Roller diameter	38-76mm(1.5-3.0‘’)
Standard distributed load	up to 100kg(220lbs)/m²
Roller material	SS304/Galvanized/Coated
Frame/Support/Leg material and style	Customizable
Side rail	Available

mdr conveyors

mdr conveyor systems video

Features & benefits of intelligrated mdr conveyor

>> Compact structure:Small conveyors are compact in design and take up little space, making them suitable for small work areas.

>> Lightweight:Mini conveyor belt often made of lightweight materials, easy to move and reconfigure.

>> Precise control:Small conveyor belt can provide high-precision material conveying and positioning, suitable for applications that require precise operation.

>> Diversification:Bifa as a conveyor manufacturer, we can not only provide you with belt conveyor small, but also design small roller conveyors, small chain conveyors, etc., to meet different material and process requirements.

>> Easy to integrate:Due to its compact design, it is easy to integrate into existing production lines or equipment, improving the flexibility and efficiency of production lines.

>> Space saving: portable(mini) conveyor belt take up little space and are suitable for material transportation in limited spaces, especially in laboratories, factories and R&D environments.

>> Flexible configuration:Mini mover conveyor design allows small conveyors to be quickly configured and rearranged as needed to meet the needs of different production tasks.

>> Reduced energy consumption: Due to their compact and efficient design, small conveyors generally consume less energy than large conveyors, thereby reducing operating costs.

mdr conveyor (Motor Driven Roller Conveyor)最先出现在Bifa Conveyor。

Timing Belt Conveyor Systems

admin — Tue, 20 Feb 2024 07:31:36 +0000

Timing belt conveyor design

Technical Parameters
Conveyor length	up to10m(32′)
Conveyor width	up to 1000mm(39.3”)
Belt width	up to 500mm(19.6”)
Speed	up to 60m(196.8′)/min
Drive location	discharge end left / right
Load capacity	up to 15kg(33lbs)/m

What‘s different about Bifa's timing belt conveyor?

Driven shaft and driving shaft are made of solid aluminum blocks

indexing timing belt conveyor

The timing belt can be opened to install workpiece of different sizes to transport irregular shaped products

aluminum timing belt conveyors

The system is suitable for exact conveying,feeding and positioning up to a total load of 100 kg
The conveyor system can be perfectly integrated into the roller conveyor system. The timing belt is pop up from under the roller using hydraulic pressure or a starting device, the goods are lifted up, and the conveyor starts running, so that the goods change their original transport direction and achieve the purpose of turning.

pop up timing conveyor

Timing belt conveyor systems

Also known as toothed belt conveyor, its ability to maintain accurate and synchronized movement, making it ideal for applications requiring precise product positioning and controlled movement.Bifa Conveyor has a strong design team and can replace the belt part of the mini conveyor with conveyor timing belt according to customer needs.More common practices are to add different tooling parts (workpieces) to the timing belt to convey products of different shapes.In recent years, automobile manufacturers and the photovoltaic industry have used this type of conveyor extensively.

Timing belt conveyor systems video

Features of china timing belt conveyor

>> High Precision: Ensures accurate positioning and movement, crucial for many automated processes.

>> Reliability: Durable and reliable under continuous operation, minimizing downtime.

>> Flexibility: Adaptable to a wide range of industries and applications with customizable configurations.

>> Quiet Operation: Reduces noise pollution in the assembly line workplace, creating a more pleasant working environment.

>> High-Strength: Constructed from robust materials like polyurethane or rubber reinforced with steel or Kevlar cords, providing excellent durability and longevity.

>> Exact Positioning: Ideal for applications requiring accurate positioning of products, such as assembly lines, inspection systems, and robotic interfacing.

>> Can be used to transport extra wide items

FAQ

What is timing belt conveyor？

The timing belt material handling conveyor, which consists of a belt body and belt teeth, can be used in conjunction with a synchronous pulley to achieve synchronous movement of the transmission system. Through the cooperation of teeth and tooth grooves, the synchronous belt will not slip during transmission, thereby ensuring the accuracy and stability of the transmission.

The advantages of the timing belt conveyor are: stable transportation, precise positioning, strong adaptability, low noise, long life, etc. At the same time, it can also adjust the speed as needed to meet different conveying distances and process requirements. In addition, the transmission efficiency of the synchronous belt of the conveyor line is high, which can reach more than 90%, which helps save energy and reduce costs.

Could I specify the brand of motor for my timing belt conveyor?

Sure, we often provide customers with well-known brands such as Sew Motor/oriental motor/Schneider speed regulator/Siemens PLC/Omron photoelectric induction…

How much does timing belt conveyor price?

Timing belt conveyors price depends on the length and width of a single belt, the number of belt rows in the total conveyor, and the motor power of the conveyor. If there are brand requirements for the conveyor, our quotation will also be different.

How much does indexing timing belt conveyor cost?

Indexing timing belt conveyor cost will depends on size and material of tooling. The customers we have worked with prefer tooling made of POM material, because this type of tooling has certain heat resistance, chemical resistance and dimensional stability, is not easy to deform, and can better carry goods.

Timing Belt Conveyor Systems最先出现在Bifa Conveyor。

Powered Roller Conveyor

admin — Wed, 01 Nov 2023 05:10:34 +0000

Powered roller conveyor design

Technical Parameters

Roller material SS201/SS304/Galvanized/Coated roller()

Roller diameter 25-89mm

Roller thickness 1.2-4.0mm

Conveyor width W 300-1500mm

Conveyor length L 600–4500mm/module

Speed up to 30m/min

Load capacity standard depending on the diameter and thickness, up to 100kg/m and total load capacity of 400kg/module

Motor brand or type Specifiable

Frame color Specifiable

Frame material Specifiable

Side rail Available

Technical Parameters
Roller material	SS201/SS304/Galvanized/Coated roller()
Roller diameter	25-89mm
Roller thickness	1.2-4.0mm
Conveyor width W	300-1500mm
Conveyor length L	600–4500mm/module
Speed	up to 30m/min
Load capacity standard	depending on the diameter and thickness, up to 100kg/m and total load capacity of 400kg/module
Motor brand or type	Specifiable
Frame color	Specifiable
Frame material	Specifiable
Side rail	Available

What‘s different about Bifa's roller conveyor system?

Bifa’s powered roller conveyor systems standard configuration

1. The standard configuration: roller diameter of 50mm, galvanized material, frame 40*100, thickness 3.0mm, and legs 40*40,thickness 1.5mm, which can meet most conveying needs. The motorised roller conveyor designed and manufactured by Bifa is usually a module of 4 meters, and each module has one power (motor), which is called motorized conveyor roller.
2. In the design of the chain driven roller conveyor, chains are used in most cases to realize the transmission function. However, there are certain safety hazards in the chain transmission method, such as the clothes, hair, or fingers of the staff may be accidentally involved in it, causing accidents.
In view of this, the bifa’s conveyor uses highlight yellow baking paint for surface treatment in the power-related parts, such as motors, chains and other key parts. This yellow is very eye-catching, which can visually attract the attention of the staff at the first time, and play a clear warning role, reminding them to be vigilant and careful when approaching these areas, so as to minimize the possibility of safety accidents caused by negligence.

chain driven live roller conveyor

3. When it comes to light load but high-precision conveying, high noise control requirements, and frequent start-stop requirements, Bifa engineers will choose 24vdc powered roller conveyor driven by poly-V belt for customers, through such a design, the rollers in each area can independently control the start and stop, running speed, etc. For example, on an assembly line, when a certain station does not need materials temporarily, the corresponding part of the electric rollers can stop rotating, allowing subsequent materials to accumulate in front of the area; when the station is ready to receive materials, the corresponding electric rollers will start again to push the materials forward. In this way, the material conveying process can be flexibly controlled according to specific production or logistics arrangements, greatly improving the flexibility of material handling and overall operating efficiency, so called motor driven roller, mdr conveyor.

24vdc powered roller conveyor

4. Bifa’s roller conveyor frame is made of carbon steel paint by default, which is not only rust-resistant and corrosion-resistant, but also has high strength. As a shareholder of the sheet metal processing plant, Bifa enjoys faster delivery of non-standard sheet metal and can control quality from the source of production.

coated roller

5. Bifa can also provide customers with overall design based on the actual load/speed/cargo characteristics and other factors according to customer needs. By carefully optimizing the conveying structure to make it more scientific and reasonable, we can significantly improve the overall space utilization efficiency, and then create an efficient conveying system for you and your customers. This optimization measure will strongly support the increase in production throughput and help you seize the initiative in the fierce market competition.

warehouse conveyors

6.If your existing conveyor system consists of roller conveyors, but you need to turn. You can consider the following three types of turning conveying systems.
1. transfer conveyor: pallet roller conveyor are often used in combination with chain conveyors or timing belt conveyors to form transfer conveyors with more powerful functions and wider application scenarios.
2. conveyor turntable
3. omni conveyor

Motorised Roller Conveyor

Heavy duty roller conveyor systems are commonly found in the logistics and warehousing fields, so they are often called warehouse conveyors, including pallet roller conveyors, motor-driven roller conveyors, and roller bed conveyors, which are essential for efficient material handling. These systems utilize driven rollers to smoothly transport goods across various warehouse environments. Ideal for heavy loads, roller conveyor transfers ensure reliable and fast movement, enhancing operational efficiency.

Powered Roller Conveyor System

Power Roller Conveyor FAQ

How Can I Calculate Motor Power For Roller Conveyor?

1. Motor power calculation for roller conveyors

The motor power of conveyor machine is an important parameter of the powered roller conveyors. Its calculation method is determined based on factors such as the length of the roller conveyor systems, material weight, belt speed and transmission efficiency. The specific formula is as follows:

P = (L × m × g × v × η) / 367

P is the motor power (unit: kilowatt)

L is the conveyor line length (unit: meter)

m is the material weight (unit: kilogram)

Top 10 famous brands of conveyor roller in the world.

Switzerland: Interroll
As the world’s leading manufacturer of roller conveyor systems, Interroll offers a wide range of powered rollers, including electric rollers for different conveying needs. Their products are widely used in industries such as logistics, automation, food and pharmaceuticals.
Japan: Daifuku
Daifuku is a world-renowned Japanese manufacturer of automated logistics systems, providing a variety of power rollers that are widely used in industries such as sorting, distribution centers and automated warehouses.
United States: Dorner
Dorner provides a variety of conveyor systems, including electric rollers, mainly used in industries such as food, automotive, medical equipment and packaging.
Germany: MK Aluminum
MK provides high-quality power rollers and their supporting systems, especially in the fields of automation and industrial manufacturing.
Italy: Rulmeca
Rulmeca is a world-renowned manufacturer of power rollers and roller conveyor systems. Its products are widely used in logistics, mining, packaging and other industries.

what is the difference between powered roller conveyor and mdr?

First of all, we need to understand what are powered roller conveyors and accumulation roller conveyors?
Powered roller conveyor: a conveyor that relies on a power device (such as a motor, etc.) to drive the roller to rotate, thereby realizing the function of conveying goods or materials. It drives the items placed on it to move along the set conveying route through the rolling of the roller. It can be used in various industrial production, logistics warehousing and other scenarios to convey items of different weights and sizes. The power transmission methods are diverse, and the common ones are chain drive and belt drive.
MDR (Motor Driven Roller, accumulation roller conveyor): It is also a type of roller conveyor, but it has an accumulation function. This means that during the conveying process, when encountering certain specific situations, such as temporary stagnation of items in front, the need for sorting operations or meeting certain process requirements, the items behind can be piled up and stopped in an orderly manner on the conveyor line without colliding with each other or causing conveying chaos. When conditions permit, they can continue to be conveyed forward. Usually, its control system is relatively more complex and sophisticated, and has good adaptability to automated production, precise logistics distribution, etc.

Powered Roller Conveyor最先出现在Bifa Conveyor。

Chain Conveyors Attachment Available

admin — Wed, 25 Oct 2023 03:29:17 +0000

Chain Conveyors Systems Design

Technical Parameters
Conveyor length	1000–10000mm (note the chain pitch)/module
Conveyor width	200 to 2000mm
Chains	Engineers will select models for you based on your needs
Drive location	left/right underneath
Drive and speed	up to 30m/min
Standard distributed load	up to 150kg/m
Attachment/jig/tooling	Available

What‘s different about Bifa's chain conveyor system?

As a manufacturer with more than ten years of experience in designing and manufacturing automated conveying systems, we provide you with highly customizable chain conveyors.

1.The most common and simplest chain conveyors application is to convey large pallets called pallet chain conveyors, usually by merging two rows of chains together to increase the conveying capacity. The packaged goods can be placed on the pallet and transported to the designated location.

Double row chain conveyor

2. Based on the above application of placing pallets, the chain conveyors can be embedded in the power roller conveyor to achieve the purpose of 90-degree turning of the pallet or box called transfer conveyor. This design saves space and can transport efficiently.

transfer conveyors

3.When it comes to fragile products, Bifa’s engineers will choose padded chain conveyor for clients. Pads (such as gaskets made of rubber, plastic and other materials) are added to conventional chains. First, they can act as buffers, reduce the impact force when conveying items, and protect the conveyed items; second, they can increase friction and better drive the items to move smoothly on the conveyor line.

conveyor padded chain

4. As conveyor chain with special attachments supplier Bifa provided different workpiece (attachment/jig/fixture tools) can be added to the chain called indexing chain conveyor. When it comes to adding workpiece or fixture tools, we have the following three ways of cooperation.

a: You provide the tooling drawings,we will manufacture the tooling and install it on the chain conveyor.

b: You provide the tooling, we make a chain conveyor that fits your tooling, and you install it yourself.

c: You provide the goods size, and we design/manufacture and install it on the chain conveyor.

attachment conveyor chain

conveyor chains with attachments

To avoid damaging the goods, we add buffer blocks such as POM or rubber to the tooling or use U type attachments chains to reduce the friction between the chain and the pallet.

4. Chain conveyor with high-temperature tunnel furnace. This situation usually requires heating/drying of goods during convey. At this time, chain conveyor + steel rod + tunnel furnace can withstand continuous high temperatures <300°C.

tunnel conveyor

5. High-speed chain coveyor, usually called free flow conveyor. Compared with the chain conveyor mentioned above, the overall design of the free flow conveyor is slightly different, but the principle is basically the same. It is mainly used to convey small pallets: it can carry more weight and faster speed and can add blocking devices to limit the position of the conveying pallet. It can be matched with automated robotic arms to realize fully automated production and assembly lines.

Accumulaating chain conveyor

Chain conveyors systems video

Chain conveyors systems

Chain conveyors are generally composed of chains, conveyor chain sprocket, guide plates, conveyor troughs and support frames. Conveyor chains are usually made of metal materials with sufficient strength and wear resistance. The sprockets are driven by the motor to move the chain. The guide plates are used to guide the direction of movement of the material on the chain. The conveyor trough is used to load the material and ensure the stable transportation of the material. The support frame is used to support and fix the structure of the chain conveyor.

Chain conveyor is a common name. When people talk about chain conveyor, they may also mean table top chain conveyor, overhead conveyor chain, slat chain conveyor,accumulation chain conveyor, plastic conveyor chain, flexible chain conveyor. Check out the chain conveyor introduction page to see the differences.

Features and benefits of chain conveyor systems

High Load Capacity: Chain conveyors can handle heavy loads, making them ideal for industries like automotive, heavy manufacturing, and mining.

Durability and Longevity: They are built to withstand harsh conditions, including high temperatures, abrasive materials, and continuous operation, ensuring long-term reliability.

Versatility: Suitable for transporting a variety of materials, including pallets, large containers, and bulk items.

Customizability: Attachment chain conveyor can be tailored to specific needs, with options for different chain types, widths, and configurations.

High Strength and Robust Design: Made from durable materials such as steel, chain conveyors are designed to handle high stress and heavy loads.

Smooth and Controlled Movement: Chain conveyors provide smooth and consistent movement, which is essential for delicate or precision manufacturing processes.

Adaptability to Environmental Conditions: Suitable for extreme conditions, such as high temperatures, dust, and moisture.

Various Chain Types: Different attachment chain conveyor types (e.g., roller chain conveyor , block chains) can be used depending on the application and material being transported.

Integration Capabilities: Can be easily integrated with other systems and equipment, such as automated production lines, robotic systems, and sorting systems.

Multiple Configurations: Available in various configurations, including horizontal, inclined, and vertical setups, to suit different operational needs.

FAQ about chain conveyors

Most frequent questions and answers

What is a chain conveyor?

Generally speaking, the chain conveyor is as described above.But there are many kinds of chain conveyors. When your customers mention chain conveyors, they may be referring to slat conveyor/chip conveyor/plastic conveyor/chain disk conveyor… So it is best to let the customer describe clearly the goods he is conveying, the purpose to be achieved, whether precise positioning is required, whether change direction is required, etc.

What is the difference between a chain conveyor and a belt conveyor? meter?

From the working principle:.
Belt conveyor: conveys materials through a continuous belt. The belt is usually made of rubber, PVC or other materials, supported and driven by two or more rollers.
Chain conveyor: Chain conveyor conveys materials through chains. The chain is usually made of metal and equipped with chain plates or trays to carry materials

view more

What is the difference between conveyor chain and roller chain?

The difference between roller conveyors and chain conveyors is based on the working principle:
Roller conveyors: consist of a series of rollers, and the materials are transported by the rotation of the rollers. The rollers can be powered rollers (driven by motors) or unpowered rollers (relying on gravity or manual push).
Chain conveyors: convey materials through chains. The chains are usually made of metal and equipped with chain plates or trays to carry the materials.

view more

Chain Conveyors Attachment Available最先出现在Bifa Conveyor。

Flat Belt Conveyor

admin — Wed, 18 Oct 2023 06:31:44 +0000

Flat belt conveyor design

Technical Parameters
Conveyor length	up to 30m(98.5′)
Conveyor width	up to 3m(118.1”)
Voltage	24v-480V
Drive location	customizable
Speed	up to 60m(196.8′)/min
Standard distributed load	up to 50kg(110lbs)/m²

What‘s different about Bifa's flat belt conveyor?

Bifa’s flat belt conveyor standard configurations：

T2.0 flat conveyor belting, T1.2 load bearing plate, T1.5 outriggers, and T2.0 frame. When clients need longer, such as 10m straight conveyor, we design and split the system according to the customer’s needs, ensuring ease of transportation and on-site installation. To enhance structural stability, T4.0 galvanized plates are used to reinforce the aluminum profile connections, providing additional support and durability.

load bearing plate

Connecting plate

For conveyors with heavy loads and a width of more than 1m, our engineers will select a variable-frequency drive (VFD) for you. We will also equip with a carbon steel electric control box. Otherwise, the default is an electronic speed controller to avoid energy waste.

belt conveyor with VFD

For different countries and different voltage requirements, we can provide customized conveyors.
Can run forward and reverse according to production needs(image1), but too frequent adjustment is not recommended.
The solid end allows for easy adjustment of belt tension. Provide stable support for power shafts.

bifa conveyor details

horizontal conveyors video

Flat belt conveyor(horizontal belt conveyor)

Also known as flat conveyors, horizontal belt conveyor, straight belt conveyor, are essential for efficient material handling in various industries, including manufacturing, warehousing, and food processing. PVC flat belts conveyor can meet most of the conveying needs and PU belt conveyor is commonly used in food production assembly lines.

Features of flat belt conveyors

>> Lower Initial Cost: Typically less expensive to purchase and install compared to other types of conveyors.

>> Energy Efficiency: Requires less power to operate, leading to reduced energy costs over time.

>> Simple Design: The straight forward design makes flat belt conveyors easy to operate and maintain.

>> Gentle Handling: Reduces the risk of jostling or rough handling, protecting items during transport.

>> Adjustable Speed: The speed of the belt can be easily adjusted to match the requirements of the production process.

>> Incline and Decline Capabilities: Flat conveyor belting Can handle slight inclines and declines, providing flexibility in layout design.

>> Modular Design: Can be easily integrated into existing systems and production lines, enhancing overall workflow efficiency.

>> Compatibility with Accessories: Compatible with various accessories like side guards, diverters, and sensors, allowing for more complex operations and control.

>> Reduced Risk: Fewer pinch points and moving parts compared to other types of conveyors, reducing the risk of accidents and injuries.

>> Stable Transport: Ensures stable and predictable movement of items, enhancing workplace safety.

FAQ

What is flat conveyor？

Flat belt conveyor, also called belt conveyor or horizontal conveyors, is an economical logistics conveying equipment that is indispensable for rhythmic assembly line. Belt conveyor consists of drive tensioning device, belt conveyor body and electrical control device. Drive tensioning device includes motor (motor) gear reducer, motor sprocket, drive chain, active roller sprocket, active roller, driven roller, redirecting roller, tensioning frame, power box, chain cover; belt line body includes working belt, supporting roller (or supporting plate) edge guard, bracket, foot (or caster) guardrail (optional); simple electrical control functions include start, stop, emergency stop, frequency conversion speed regulation, etc. Belt conveyor conveys smoothly, there is no relative movement between material and conveyor belt, which can avoid damage to conveyed objects; compared with other conveyors, the noise is small, suitable for occasions where the working environment requires a relatively quiet working environment.

How much does it cost per meter?

The conveyors provided by Bifa are not charged per meter. Our engineers provide corresponding configurations based on specific needs in order to provide a more accurate quotation.

Can flat belt conveyors be used for food?

yes,We provide a large number of belt types of different materials to choose from. When you need to transport food, we will recommend PU belts and stainless steel frame belt conveyors for you.

What belt materials are available?

We can provide you with belts made of PU/PVC/Rubber/Fabric/Silicone/Teflonand other materials to meet different needs.

What frame materials are available?

We can provide aluminum conveyor, stainless steel conveyor, carbon steel conveyor.

Flat Belt Conveyor最先出现在Bifa Conveyor。