When selecting a linear motion screw, accuracy grade is a key consideration. Different applications have varying requirements for positioning accuracy and repeatability, so it's important to select the appropriate accuracy grade based on actual needs to achieve a balance between performance and cost.
1. High-Precision Requirement: Choose Grades C0-C3
1.1 Applicable Applications
Precision machine tools (machining centers, jig boring machines), semiconductor equipment (wafer handling/processing mechanisms), and precision measuring instruments (coordinate measuring machines).
1.2 Core Reason
This type of equipment typically requires positioning accuracy within ±0.01mm or better, and repeatability within the ±0.001mm range. Insufficient linear motion screw accuracy can easily lead to error accumulation. Grades C0-C3 lead screws offer extremely low lead error and axial play, fully meeting these requirements.
2. Medium-to-High Precision Requirements: Choose C4-C5
2.1 Applicable Applications
Automated production lines (precision assembly robots, conveyor positioning mechanisms), laser processing equipment (cutting/engraving path positioning), medical equipment (surgical robotic arms).
2.2 Key Reason
These devices require positioning accuracy of ±0.01-±0.05mm and repeatability of ±0.005mm, while ensuring smooth operation and minimizing vibration or stalling. C4-C5 accuracy is sufficient to meet these requirements and offers a more cost-effective solution.
3. General Precision Requirements: Choose C6-C7
3.1 Applicable Applications
General industrial machinery (auxiliary drives for hydraulic/pneumatic equipment, material handling machinery), packaging machinery (conveyor positioning, filling head movement), general machine tools (lathe feed mechanisms).
3.2 Key Reason
These types of equipment do not require high accuracy (±0.05-±0.1mm is sufficient), prioritizing transmission efficiency and load capacity. C6-C7 lead screws offer an excellent balance between cost and performance, avoiding unnecessary high costs.
4. Low-Precision Requirement Scenarios: Choose C8-C10
4.1 Applicable Applications
Simple lifting mechanisms (small lifts, warehouse shelf lifts), ventilation equipment adjustment mechanisms, and auxiliary drives for general conveyor lines.
4.2 Core Reason
These devices require only basic linear motion screw and have a high tolerance for error (±0.1mm or greater). C8-C10 lead screws offer the lowest cost and fully meet basic drive requirements.
Summary
Choosing the appropriate linear motion screw accuracy grade not only ensures equipment performance but also effectively reduces costs. We offer a full range of products, from ultra-high-precision C0-C3 to basic drive C8-C10, to meet diverse application needs.
