China high quality CHINAMFG Precision Slide OEM Roller Linear Guide Rail Zll Series

Product Description

ZL/ZLL Four-way Equal-load Heavy-duty Narrow Roller Linear Motion Xihu (West Lake) Dis.

Feature 1: The sliding rail and the sliding block are in contact with each other through balls, so the shaking is small, which is suitable for equipment with precision requirements.

Feature 2: Because of the point-to-surface contact, the frictional resistance is very small, and fine movements can be performed to achieve high-precision positioning of control devices, etc.

Feature 3: Because the ball has its own rolling groove, the force on the rotating surface will be dispersed, so it has a larger allowable load.

Feature 4: The linear guide is not easy to generate frictional heat during operation, and is not easy to be deformed by heat, so it is suitable for high-speed motion.


Automation equipment, high-speed transportation equipment, precision measuring instruments, semiconductor equipment, woodworking machinery

SJAG-ZL ( Four Directional Equal Load Heavy Duty Narrow Type )

Model Component size(mm) Slider size (mm) Rail size(mm)
H H1 N B B1 C L1 L K1 G M T H2 H3 WR HR D h d P E
SJAG 25ZL 40 5.5 12.5 48 35 6.5 35 64.5 97.9 20.75 12 M6*8 9.5 10.2 10 23 23.6 1l 9 7 30 20
SJAG 25ZLL 50 81 114.4 21.5
SJAG 30ZL 45 6 16 60 40 10 40 71 109.8 23.5 12 M8*10 9.5 9.5 13.8 28 28 14 12 9 40 20
SJAG 30ZLL 60 93 131.8 24.5
SJAG 35ZL 55 6.5 18 70 50 10 50 79 124 22.5 12 M8*12 12 16 19.6 34 30.2 14 12 9 40 20
SJAG 35ZLL 72 106.5 151.5 25.25
SJAG45ZL 70 8 20.5 86 60 13 60 106 153.2 31 12.9 M10*17 16 20 24 45 38 20 17 14 52.5  
SJAG45ZLL 80 139.8 187 37.9
SJAG55ZL 80 10 23.5 100 75 12.5 75 125.5 183.7 37.75 12.9 M12*18 17.5 22 27.5 53 44 23 20 16 60 30
SJAG55ZLL 95 173.8 232 51.9
SJAG65ZL 90 12 31.5 126 76 25 70 160 232 60.8 12.9 M16*20 25 15 15 63 53 26 22 18 75 35
SJAG65ZLL 120 223 295 67.3
SJAG 85ZLL 110 15 35.5 156 100 140 254 349 14 M18*25 30 21 85 73 35 28 24 90 45
SJAG 100ZLL 120 15 50 200 130 200 286 394 16 M20*27 33 23 100 80 39 32 26 105 52.5
SJAG 125ZLL 160 24.5 57.5 240 184 205 360 491 16 M24*30 40 23 125 115 48 45 33 120 60

ZL Type Xihu (West Lake) Dis. Sub Mounting Connection Dimensions

Fixing bolt size of slide rail Basic dynamic load rating Basic static load rating Allowable static moment Weight
(mm) C(kN) Co(kN) MR MP MY Slide Rail
M6×20 27.7 57.1 0.758 0.605 0.605 0.55 3.08
33.9 73.4 0.975 0.991 0.991 0.7
M8×25 39.1 82.1 1.445 1.06 1.06 0.82 4.41
48.1 105 1.846 1.712 1.712 1.07
M8×25 57.9 105.2 2.17 1.44 1.44 1.43 6.06
73.1 142 2.93 2.6 2.6 1.86
M12×35 92.6 178.8 4.52 3.05 3.05 2.97 9.97
116 230.9 6.33 5.47 5.47 3.97
M14×45 130.5 252 8.01 5.4 5.4 4.62 13.98
167.8 348 11.15 10.25 10.25 6.4
M16×50 213 411.6 16.2 11.59 11.59 8.33 20.22
275.3 572.7 22.55 22.17 22.17 11.62
M20 460 945.2 51420 45600 45600 14.7 35.2
M24 547 1330 73140 61200 61200 24.5 46.8
M30 1040 1924 123176 123176 123176 46 84.6




1. Why choose CHINAMFG China?

Over the past 14 years, CHINAMFG has always insisted that “products and services” start from Japanese industry standards,taking ZheJiang standards as the bottom line, actively invest in the development of new transmission components and self-experiment and test. With the service tenet of “exceeding customer expectations”, establish a “trusted” partnership.

2. What is your main products ?

We are a leading manufacturer and distributor of linear motion components in China. Especially miniature size of Ball Screws and Linear Actuators and linear motion guideways. Our brand “KGG” stands for ” Know-how,” ” Great Quality,” and ” Good value” and our factory is located in the most advanced city in China: ZheJiang with the best equipment and sophisticated technology, completely strict quality control system. Our aim is to supply world leader class linear motion components but with most reasonable price in the world.

3. How to Custom-made (OEM/ODM)?

If you have a product drawing or a sample, please send to us, and we can custom-made the as your required. We will also provide our professional advices of the products to make the design to be more realized & maximize the performance.

4. When can I get the quotation?

We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price,please call us or tell us in your email so that we will regard your inquiry priority.

5. How can I get a sample to check the quality?

After confirmation of our quoted price, you can place the sample order. The sample will be started after you CHINAMFG back our detailed technical file.

6. What’s your payment terms?

Our payment terms is 30% deposit,balance 70% before shipment.

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Application: Precision Automation Equipment
Material: Steel
Structure: Linear Motion Transmission
Installation: Automatic Machinery
Driven Type: Roller Linear Drive
Carrying Capacity: Weight Level


linear rail

What are the reliability and durability aspects of linear rails in ensuring consistent linear movement?

The reliability and durability of linear rails are critical for ensuring consistent linear movement in various applications. Here are key aspects that contribute to their reliability and durability:

  • Materials: High-quality materials, such as hardened steel or reinforced alloys, are used in the construction of linear rails. These materials provide the necessary strength, wear resistance, and durability to withstand the stresses of continuous linear motion.
  • Surface Treatments: Surface treatments, including coatings and finishes, are applied to protect the linear rails from corrosion, abrasion, and other forms of wear. These treatments enhance the longevity of the rails, ensuring they maintain their performance over time.
  • Lubrication: Proper lubrication is essential for reducing friction between the rail and carriage. Lubrication not only minimizes wear but also contributes to smooth and consistent linear movement. Lubrication intervals and the choice of lubricants impact the overall reliability and performance of the linear rail system.
  • Sealing: Sealing mechanisms are employed to protect the internal components of the linear rail system from contaminants such as dust, debris, and moisture. Effective sealing enhances the reliability of the system by preventing damage to critical components and minimizing the risk of malfunction.
  • Rigidity: The rigidity of linear rails is crucial for maintaining consistent linear movement, especially under varying loads. Rigidity prevents deflection or bending of the rail, ensuring that the carriage follows a precise and predictable path during operation.
  • Load-Bearing Capacity: The load-bearing capacity of linear rails is a key factor in their reliability. Properly sized linear rails that match the application’s load requirements ensure consistent performance and prevent premature wear or failure.
  • Manufacturing Precision: High manufacturing precision in the production of linear rails contributes to their reliability. Precise machining and assembly processes result in consistent dimensions and tolerances, ensuring that the rail and carriage components fit together seamlessly for reliable linear motion.

Reliability and durability go hand in hand in ensuring consistent linear movement over the lifespan of the linear rail system. Regular maintenance, including inspections, lubrication, and replacement of worn components, further contributes to the sustained reliability of linear rails in industrial and automation applications.

linear rail

Can you explain the principles behind linear rail operation and load-bearing capabilities?

The operation of linear rails and their load-bearing capabilities are governed by fundamental principles:

1. Rolling Contact: Linear rails typically utilize rolling contact elements, such as recirculating ball or roller bearings, between the rail and the carriage. These elements reduce friction and enable smooth motion by rolling along the profiled surface of the rail.

2. Profiled Rail Design: The rail is designed with a specific profile, often featuring raceways for the rolling elements. This profile provides guidance to the carriage, ensuring that it moves along a predetermined path without deviations.

3. Load Distribution: The load-bearing capabilities of linear rails are achieved through the distribution of the applied load across the rolling elements. This design allows for the effective support of loads, both radial and axial, while minimizing stress on individual components.

4. Rigidity: Linear rails are designed to be rigid, preventing deflection or bending during operation. This rigidity is essential for maintaining accuracy and precision, especially in applications where high loads or forces are involved.

5. Lubrication: Proper lubrication is crucial for reducing friction and minimizing wear between the rolling elements and the rail. Lubrication also helps dissipate heat generated during operation, contributing to the overall efficiency and longevity of the linear rail system.

6. Materials and Construction: The materials used in the construction of linear rails, such as hardened steel or reinforced alloys, contribute to their load-bearing capabilities. The choice of materials ensures durability and resistance to wear under various operating conditions.

Overall, the combination of rolling contact, profiled rail design, load distribution, rigidity, lubrication, and appropriate materials enables linear rails to operate efficiently and support varying loads in industrial applications. Understanding these principles is essential for selecting the right linear rail system based on the specific requirements of a given application.

linear rail

Can you explain the advantages and key features of linear rails in various applications?

Linear rails offer several advantages and key features that make them essential in various applications:

  • Precision: Linear rails provide precise and accurate movement along a straight path, crucial for applications requiring high precision and repeatability.
  • Low Friction: The design of linear rails minimizes friction between the rail and carriage, ensuring smooth and efficient motion, reducing wear, and improving overall system performance.
  • High Load Capacity: Linear rails can support significant loads, making them suitable for applications with varying load requirements, from light-duty to heavy-duty.
  • Modularity: Many linear rail systems are modular, allowing easy customization and adaptation to different applications and environments.
  • Versatility: Linear rails accommodate different load types, including radial and axial loads, making them versatile for a wide range of applications such as robotics, CNC machines, and industrial automation.
  • Reduced Maintenance: The low-friction design and durable materials used in linear rails contribute to reduced maintenance requirements, increasing the overall lifespan of the system.

These advantages make linear rails a preferred choice in applications where precise linear motion, durability, and versatility are critical factors.

China high quality CHINAMFG Precision Slide OEM Roller Linear Guide Rail Zll Series  China high quality CHINAMFG Precision Slide OEM Roller Linear Guide Rail Zll Series
editor by CX 2024-04-15