Hiwin Linear Rails FAQ

Hiwin Linear guideways Rails dealer in india contact number?

Hiwin Dealer in India's contact phone number is +91 80 23725544,  +91 80 23726644, 

What are the Hiwin accuracy classes?

Hiwin linear guideways blocks and Hiwin LM Rails have three main and two special accuracy classes. The accuracy of all series can be classified into five classes: normal(C), high(H), precision(P), super precision(SP), and ultra-precision (UP).

The "C" class is for standard applications.

The "H" Class is more accurate than the "C" class.

The "P" Class is more accurate than the "H" and "C" classes.

Fast-moving classes are "C" and "P"

what is a linear GUIDEWAY?

A linear guideway, also known as a linear guide or linear motion bearing, is a mechanical component used in various applications to provide linear motion and support for objects or equipment. It is designed to enable precise and smooth movement along a straight path, typically in a linear direction, and is commonly used in machinery, automation systems, and manufacturing processes.

A linear guideway typically consists of several key components:

1. Rail or track: This is a long, straight, and often rectangular-shaped structure that serves as the reference surface for guiding and supporting the moving components.

2. Slider or carriage: The slider is attached to the object or equipment that needs to move linearly. It rides on the rail and typically contains rolling elements, such as ball bearings or rollers, to reduce friction and enable smooth movement.

3. Rolling elements: These elements, such as ball bearings or rollers, are located within the slider or carriage and come into contact with the rail. They allow the slider to move along the rail with minimal friction.

Linear guideways are used in various applications, including CNC (Computer Numerical Control) machinery, industrial automation, transportation systems, and precision measurement equipment. They provide advantages like high accuracy, repeatability, and minimal friction, which make them suitable for applications that require precise and controlled linear motion. The choice of linear guideway design and materials can vary depending on load capacity, speed, and environmental conditions.

Is Hiwin is good brand?

Hiwin is generally considered a reputable brand in linear motion and automation products. They produce high-quality linear motion components such as linear bearings, ball screws, linear guideways, and other motion control systems. Hiwin products are used in industrial and automation applications, including CNC machinery, robotics, and precision equipment.

The quality and reliability of Hiwin products often make them a popular choice for engineers and manufacturers needing precise and dependable linear motion solutions. However, like any brand, the perception of "good" can vary depending on specific requirements and the industry in which the products are used. It's essential to assess whether Hiwin products meet your particular needs and are compatible with your application. Additionally, factors like pricing and availability may also influence your decision.

Before purchasing, consider the specific product you need, your budget, and your project's requirements. Additionally, consult with other professionals or industry experts who have experience with Hiwin products to gain insight into their performance and suitability for your application.

where ARE hiwin linear guides manufactured?

Hiwin linear guides are manufactured by Hiwin Technologies Corp, a company based in Taiwan. Hiwin is a global market for motion control and system technology, and they produce a wide range of linear motion products, including linear guides, ball screws, actuators, and other precision components.

Overseas Subsidiaries include Germany, Japan, the United States, Italy, Switzerland, the Czech Republic, France, Singapore, South Korea, and China (Suzhou).

R&D Centers are located in Tokyo (Japan) and Offenburg (Germany)

The company was founded in 1989 and has since expanded its operations worldwide to serve various industries. While its headquarters are in Taiwan, it has manufacturing facilities and sales offices in multiple countries to cater to the global market. It's important to note that the specific manufacturing locations and distribution centres may change over time. Please feel free to reach out to us for more information.

How do I choose the right size and series of Hiwin linear rails and blocks for my application?

Choosing the right Hiwin linear rails and blocks involves careful consideration of your application's demands. Begin by assessing the load requirements, determining the weight and forces your system will endure. Next, evaluate the desired accuracy and rigidity, as this dictates the appropriate Hiwin series (e.g., HG, EG, RG, MG).

Consider the operating environment, including temperature, humidity, and potential contaminants, which may necessitate specific materials or coatings. Calculate the required travel length and speed, ensuring the chosen components can handle the motion profile.

Furthermore, factor in the mounting space and orientation, selecting blocks and rails that fit within your system's constraints. Finally, consult Hiwin's catalogs and technical documents, or seek expert advice from authorized distributors, to ensure proper component selection and optimal performance.

What are the differences between the various Hiwin series (e.g., HG, EG, MG, RG) and which one is best suited for my needs?

Hiwin offers diverse linear guide series, each tailored to specific applications. The key differences are in load capacity, accuracy, and size.   

• HG series:

  • Designed for heavy loads, ideal for CNC machinery.   

• EG series:

  • Lower profile, suited for automation and high-speed applications.   

• MG series:

  • Miniature guides for precision in compact spaces, like medical or semiconductor equipment.   

• RG series:

  • Roller-type guides provide extremely high rigidity for heavy-duty machinery.   

Choosing the right series depends on your application's requirements:

• The RG or HG series are the best and are commonly used for heavy loads and rigidity.

• For compact, precise applications, the MG series is optimal and the miniature series.

• For high-speed automation, the EG series is a good choice.

What are the different accuracy classes available, and how do they impact performance?

Hiwin linear guides offer accuracy classes like C, H, P, SP, and UP. These classes define precision levels, with "C" being standard and "UP" ultra-precise. Higher accuracy classes reduce deviations, enhancing positioning and repeatability, crucial for applications demanding fine tolerances, such as CNC machining or precision measurement.

What is the load capacity of a specific Hiwin block, and how do I calculate the load requirements for my system?

Hiwin block load capacity indicates the maximum weight it can bear. To calculate system load, consider:

• Dynamic loads (during motion).   

• Static loads (when stationary).

• Moment loads (forces causing rotation).   

Hiwin catalogs provide load ratings; use these, plus safety factors, to ensure your system operates safely within the block's limits.

What are the lubrication requirements for Hiwin linear guides, and what type of lubricant should I use?

Hiwin linear guides require regular lubrication to minimise friction and wear. Depending on the application and speed, use high-quality, lithium-based grease or ISO VG 68-100 oil. Apply the lubricant through the designated ports, following Hiwin's recommended intervals and quantities.

How do I interpret the Hiwin product codes and specifications?

Hiwin product codes detail size, series (like HG, EG, MG, RG), accuracy, and preload. Interpret codes by consulting Hiwin's catalogs, which break down each segment. Specifications cover load capacity, speed, and dimensions. Understanding these codes makes sure that the product selection is correct for your application.

What are the differences between ball-type and roller-type linear guides, and when should I use each?

Ball-type linear guides use recirculating balls for smooth motion, excelling in high-speed, precision applications with lighter loads.

Roller-type guides, which use cylindrical rollers, offer greater load capacity and rigidity. They are ideal for heavy-duty applications requiring high stiffness. Choose ball guides for precision tasks and roller guides for robust, heavy-load demands.

What are the preload options, and how do they affect the performance of the linear guide?

Preload eliminates clearance between balls/rollers and raceways. Options include light, medium, and heavy (Preload Code: 20, ZA). Preload increases rigidity, reduces deflection, and improves positioning accuracy. However, it also increases friction and heat, potentially shortening lifespan. Higher preloads suit high-precision, high-load applications.

What are the proper installation procedures for Hiwin linear rails and blocks?

Proper Hiwin installation involves ensuring a clean, flat mounting surface (Ref PPT). The rails must be aligned precisely and secured with specified torque. Blocks must be carefully slid onto the rails, avoiding impacts. The alignment and smooth movement must be verified. The system must be lubricated thoroughly before operation. Specific torque values and procedures must be found in Hiwin's detailed installation manual.

How do I align the linear rails and blocks to ensure smooth and accurate movement?

Aligning Hiwin linear rails and blocks involves precise steps. First, ensure mounting surfaces are clean and flat. Then, secure the first rail loosely and use a torque wrench to tighten bolts incrementally. Next, mount the second rail, using a dial indicator to check parallelism. Finally, run the blocks along the rails, confirming smooth, bind-free movement. Proper alignment minimizes wear and maximizes accuracy.

How do I check for wear and damage on the linear guides, and what are the signs of a problem?

To check for wear, visually inspect rails and blocks for scratches, dents, or corrosion. Feel for roughness during movement and motor load increases. Signs of problems include:

• Increased noise or vibration.

• Uneven or binding motion.

• Increased play or loss of accuracy.

• Visible debris or metal shavings.

• Corrosion or damaged seals.

What are the typical lead times for Hiwin products?

Determining precise HIWIN product lead times proves complex due to varying factors. These include product type, customization, order volume, and current production demand. Standard, off-the-shelf items generally have shorter lead times, while custom-engineered products require more extended periods. HIWIN's terms emphasize that quoted lead times are estimates, not guarantees. Inventory availability and regional location also influence delivery. Direct contact with HIWINDEALER or an authorized distributor is crucial for accurate information. 

Hiwin Dealer stocks all fast-moving products for quick delivery. Our same-day delivery helps customers get products on time. We recommend that designers use standard products and discuss their requirements with us before designing the equipment. We support all customers if they indicate their requirements for the upcoming Project. We can just stock Hiwin products as required. Lead times for hiring products are anywhere between 2 to 3 months advance planning is needed.

What are the advantages of using Hiwin's linear motors compared to traditional ball screw systems?

Hiwin's linear motors offer significant advantages over traditional ball screw systems, primarily in precision, speed, and maintenance. Here's a breakdown:   

• Enhanced Precision and Speed:

  • Linear motors provide direct-drive motion, eliminating the backlash and mechanical losses inherent in ball screws. This results in superior positioning accuracy and repeatability.   

  • They achieve higher speeds and accelerations due to the direct force application, crucial for applications demanding rapid movements.   

• Reduced Maintenance and Increased Reliability:

  • With fewer moving parts, linear motors experience less wear and tear, minimizing maintenance requirements and increasing operational lifespan.   

  • The absence of mechanical linkages reduces the risk of component failure, enhancing overall system reliability.

• Improved Efficiency and Compact Design:

  • Direct-drive operation minimizes energy loss, leading to higher efficiency compared to ball screw systems.

  • Their compact design allows for integration into space-constrained applications, offering greater flexibility in machine design.   

• Direct Position Feedback:

  • Linear motors often utilize linear encoders, which provide direct position feedback at the load. This leads to much greater positional accuracy, compared to ball screw systems that often use rotary encoders.   

Hiwin linear motors excel in applications requiring high precision, speed, and reliability, making them a preferred choice for advanced automation and manufacturing processes.

What are the recommended installation procedures for Hiwin linear guideways?

Here are the recommended installation procedures for Hiwin linear guideways:

Before installation, remove all transport packaging and ensure the rail is horizontal. Mount the rail based on machine requirements, guaranteeing the straightness and evenness of the installation surfaces. Clean the mounting surface and use push screws or clamps to tension the profile rail. Tighten the fixing screws on the profile rail to the specified torque using a torque wrench. Avoid tension during installation to prevent premature failure. Keep the rail as horizontal as possible after removing the safety device to prevent uncontrolled block movement.

Please visit https://www.hiwindealer.com/linear-guide-installation to download the PPT for installing Linear guideways and ballScrews.