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Key Technical Factors in Guide Rail Slider Selection

1. Load Capacity & Rigidity

  • Dynamic/Static Load Analysis:

    • Vertical load determines rail cross-section (e.g., 15mm for light load to 76mm for heavy load).

    • Lateral force compensation requires ≥2 sliders spaced ≥30mm apart.

  • Preload Selection:

    • Medium preload (Z0) for general use, high preload (Z1) for heavy-duty applications.

2. Precision Grades

Grade

Positioning Error (μm/m)

Typical Applications

Standard (C)

±50

Packaging machines, conveyors

Precision (P)

±15

CNC machines, semiconductor equipment

Ultra-Precision (SP)

±5

Lithography, metrology systems

3. Environmental Adaptability

  • Protection Measures:

    • Scraper plates for dusty environments; stainless steel for humidity >80%.

  • Lubrication Solutions:

    • Graphite-embedded bearings (e.g., 0.1-0.2 friction coefficient) for maintenance-free operation.

4. Installation & Maintenance

  • Surface Requirements:

    • Mounting roughness ≤Ra3.2, flatness ≤0.02mm/100mm.

  • Anti-Derailment Design:

    • Mechanical stops at both ends, with safety travel ≥slider length.

Note: For SCS30 compatibility, verify interface tolerances and lubrication compatibility. Finite element analysis is recommended for extreme load validation. 


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