China manufacturer Factory Hardware Accessories Sliding Plastic/Aluminum/Zonc Alloy Support Door and Window Roller with Best Sales

Product Description

 

Product  as shown in the picture
Size custom-made (provide drawings or pictures)
Material nylon plastic/ steel/ aluminium/ zinc/ pvc…
Color orange, white, black, yellow, blue, red…
Applacation sliding door and window, binds, furniture, Roll-up door, Conveyor belt…
Normal Packing poly bag + outer carton

 

We have too many products about window and door rollers.
please send me pictures or drawings.
So that I can confirm with you as soon as possible. Thank you.

About us

We are committed  to developing  and designing  different  kinds of non-standard pulley  bearings, with an annual production  capacity  of 120 million sets. We export to more than 70 countries  and areas, like USA, Canada, Spain, Germany, France and Italy, etc.

Our company maintains our quality system to ISO 9001:2000, and has been audited by SGS for our production operations. We will continuously seek to provide our customers with good-quality products, excellent service and most competitive price. We look CHINAMFG to building long-term business relationship with you and achieving our mutual benefits.

Factory is specialized in manufacturing non-standard bearing, plastic and metal pulley, bracket pulley, roller, door and window fittings, etc. Relying on a series of advanced processing equipments, skilled workers, strict inspection system, and organized management, we are able to provide good-quality products with competitive price.

Why choose us

1.Professional experience: almost 20 years’ expenience in non-standard bearings, rollers, pulleys, and other plastic accessories for door and window.
2.Popular over the world: over 20 market countries.
3.Advantage: good quality with competitive price.
4.OEM offered: technical drawings, samples or photos are needed.

 

Canton Fair

Factory Picture

 

 

FAQ

Q: How to get a quotation and start business relationship with your company?
A: Please send us email and our sales representive will contact you as soon as we receive your email.

Q: How to receive a quotaion in the shortest time?
A: When you send us an enquiry, please try to provide more details, such as product size, photo or drawing, order quantity, etc. 

Q: How to start an OEM project with your company?
A: Please send us your designed drawings or original samples so that we can offer a quotation first. If all details are confirmed, we will arrange sample production once received your deposit.

Q: What’s your MOQ?
A: The MOQ depends on the design and production processes of the products. Nomally our company MOQ is 10000pc , but it can be much more or less depending on different product types. Therefore, we recommend you to tell us your required quantity first.

Q:How long can I receive an order?
A: That depends on the specific items and your order quantity. The lead time varies from 30 to 90 days. 
 

    Contact Us

    HangZhou CHINAMFG Pulley Manufacture Co., Ltd.
    WEBSITE: http://nbminli /  
    ADDRESS: No.9 CHINAMFG Road, CHINAMFG Industrial Zone, Xihu (West Lake) Dis. District, HangZhou, China

    We have many products about door and window rollers, accessories, bearings.

    Support customization, If you are interested in, please send me a message.

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    Rolling Body: Roller Bearings
    The Number of Rows: Single
    Outer Dimension: Small (28-55mm)
    Samples:
    US$ 0.1/Piece
    1 Piece(Min.Order)

    |

    Order Sample

    Customization:
    Available

    |

    Customized Request

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    Shipping Cost:

    Estimated freight per unit.







    about shipping cost and estimated delivery time.
    Payment Method:







     

    Initial Payment



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

    pulley

    How does the diameter of a pulley affect its mechanical advantage?

    The diameter of a pulley plays a significant role in determining its mechanical advantage. Mechanical advantage refers to the ratio of the output force or load to the input force or effort applied to the pulley system. Here’s how the diameter of a pulley affects its mechanical advantage:

    1. Larger Diameter: When the diameter of a pulley increases, the mechanical advantage also increases. A larger diameter means that the circumference of the pulley is greater, allowing a longer length of rope or belt to be wrapped around it. As a result, a larger pulley requires less effort force to lift a given load. This is because the load is distributed over a greater length of rope or belt, reducing the force required to overcome the load.

    2. Smaller Diameter: Conversely, when the diameter of a pulley decreases, the mechanical advantage decreases. A smaller diameter means that the circumference of the pulley is reduced, resulting in a shorter length of rope or belt wrapped around it. As a result, a smaller pulley requires more effort force to lift a given load. This is because the load is concentrated over a shorter length of rope or belt, requiring a greater force to overcome the load.

    It’s important to note that while a larger diameter pulley offers a greater mechanical advantage in terms of reducing the effort force required, it also results in a slower speed of the load being lifted. This is because the longer length of rope or belt requires more input distance to achieve a given output distance. On the other hand, a smaller diameter pulley offers a lower mechanical advantage but allows for a faster speed of the load being lifted.

    The mechanical advantage of a pulley system can be calculated using the formula:

    Mechanical Advantage = Load / Effort

    Where “Load” refers to the weight or force being lifted and “Effort” refers to the force applied to the pulley system. By adjusting the diameter of the pulley, the mechanical advantage can be optimized to suit the specific requirements of the application, balancing the effort force and speed of the load being lifted.

    pulley

    How are pulleys used in manufacturing processes and assembly lines?

    Pulleys play a crucial role in manufacturing processes and assembly lines, facilitating the movement of materials, components, and products. They are utilized in various ways to enhance efficiency, increase productivity, and streamline production. Here’s how pulleys are commonly used in manufacturing processes and assembly lines:

    1. Conveyor Systems:

    Pulleys are extensively employed in conveyor systems, which are integral to manufacturing and assembly lines. Conveyor belts or chains run over pulleys at different points along the line, transporting materials or products from one workstation to another. The pulleys help guide and support the conveyor belts or chains, ensuring smooth and controlled movement. By utilizing pulleys of different sizes or configurations, conveyor systems can be designed to accommodate various layouts, inclines, or speed requirements.

    2. Material Handling:

    Pulleys are used to facilitate the lifting, lowering, and movement of materials in manufacturing processes. Cranes, hoists, and lifting equipment often incorporate pulley systems to provide mechanical advantage and precise control over heavy loads. The pulleys, along with ropes, cables, or chains, allow operators to lift and position materials with minimal effort and improved safety.

    3. Assembly Line Automation:

    In automated manufacturing and assembly lines, pulleys are utilized in robotic systems to control the movement of robotic arms. The pulleys are incorporated into the mechanism that guides the cables or belts connected to the robotic arms. By adjusting the position and tension of the pulleys, precise and coordinated movements can be achieved, enabling efficient assembly processes.

    4. Tensioning and Alignment:

    Pulleys are crucial for maintaining proper tension and alignment in manufacturing processes. Tensioning pulleys are used to apply the appropriate tension to belts or chains, ensuring optimal power transmission and preventing slack or slipping. Alignment pulleys are employed to align belts or chains, minimizing wear, reducing vibrations, and prolonging the life of the components.

    5. Power Transmission:

    Pulleys are central to power transmission in manufacturing processes and assembly lines. They are used in conjunction with belts, chains, or gears to transfer rotational motion and power from one component to another. By selecting pulleys of different sizes or ratios, the speed and torque can be adjusted to suit specific production requirements.

    6. Tool and Machine Positioning:

    In manufacturing processes, pulleys are often integrated into tool positioning systems or adjustable machine setups. By using pulleys and cables, tools or machine components can be easily repositioned, allowing for quick changeovers or adjustments to accommodate different workpieces or production tasks.

    Overall, pulleys are indispensable in manufacturing processes and assembly lines, enabling efficient material handling, precise movement control, proper tensioning and alignment, power transmission, and flexible tool positioning. Their use contributes to increased productivity, improved workflow, and enhanced automation in the manufacturing industry.

    pulley

    What safety precautions should be observed when using pulleys?

    When using pulleys, it is important to observe several safety precautions to ensure the well-being of individuals involved and prevent accidents. Here are some key safety precautions that should be followed:

    1. Proper Training: Individuals who operate or work around pulley systems should receive proper training on their usage, including understanding the equipment, safety procedures, and potential hazards. Training should cover topics such as load limits, proper lifting techniques, and the importance of following safety guidelines.

    2. Inspections and Maintenance: Regular inspections and maintenance of pulleys are crucial for identifying any signs of wear, damage, or malfunction. Inspect pulleys for cracks, deformation, excessive wear, or any other issues that may compromise their integrity. Replace damaged or worn-out pulleys immediately to prevent accidents.

    3. Load Capacity: Ensure that the load being lifted or moved does not exceed the rated load capacity of the pulley system. Exceeding the load capacity can lead to overloading, which may result in equipment failure, accidents, or injuries. Refer to the manufacturer’s guidelines or load capacity charts for proper load calculations.

    4. Secure Attachment: Ensure that pulleys are securely attached to their mounting points or support structures. Loose or improperly secured pulleys can cause the load to shift or fall, posing significant safety risks. Use appropriate hardware, such as bolts or clamps, and follow manufacturer recommendations for proper attachment methods.

    5. Personal Protective Equipment (PPE): Individuals involved in pulley operations should wear the necessary PPE, depending on the specific hazards present. This may include safety helmets, gloves, safety glasses, and appropriate footwear. PPE helps protect against potential injuries from falling objects, impacts, or contact with moving parts.

    6. Clear Work Area: Maintain a clear work area around the pulley system. Remove any obstructions, debris, or tripping hazards that could impede safe operation or cause accidents. Adequate space should be provided for safe movement and positioning of individuals involved in the operation.

    7. Communication and Signaling: Establish clear communication and signaling protocols when working with pulleys. Use standardized hand signals or communication devices to ensure effective communication between operators, spotters, and other personnel involved. This helps coordinate movements, avoid misunderstandings, and prevent accidents.

    8. Emergency Stop Procedures: Familiarize yourself with the emergency stop procedures for the pulley system. Ensure that all individuals involved are aware of how to quickly and safely stop the operation in case of an emergency or unexpected event. Clearly mark emergency stop buttons or switches and ensure they are easily accessible.

    9. Lockout/Tagout: If performing maintenance, repairs, or adjustments on the pulley system, follow proper lockout/tagout procedures to isolate energy sources and prevent accidental startup. Lockout/tagout procedures help protect against unexpected movements or releases of stored energy.

    10. Risk Assessment: Conduct a thorough risk assessment before using pulleys. Identify potential hazards, evaluate associated risks, and implement appropriate control measures to mitigate those risks. Regularly review and update risk assessments as necessary.

    It is essential to consult relevant industry standards, guidelines, and local regulations specific to your application or jurisdiction to ensure compliance with safety requirements when using pulleys.

    China manufacturer Factory Hardware Accessories Sliding Plastic/Aluminum/Zonc Alloy Support Door and Window Roller   with Best Sales China manufacturer Factory Hardware Accessories Sliding Plastic/Aluminum/Zonc Alloy Support Door and Window Roller   with Best Sales
    editor by CX