What customization options are available for longer rails?

Customization Options for Longer HGR20 Linear Guide Rails:

1. Extended Lengths:

• Standard: Up to 4,000mm (single-piece continuous rail).

• Special Orders: Custom lengths up to 6,000mm (requires segmented rail assembly with precision-matched joints).

2. Joining Methods:

• Precision-Engineered Joints: Laser-welded or bolted with ±0.02mm alignment tolerance.

• Seamless Integration: Maintains original load capacity (20,000N) and precision (P4 grade) across joints.

3. Material & Surface Enhancements:

• Corrosion-Resistant Coatings: Black oxide or zinc plating for rails >3,000mm (prevents oxidation at joint points).

• Reinforced Support Brackets: Added at 1,500mm intervals for long rails to prevent sagging.

4. Lead Time & Cost:

• Standard (≤4,000mm): 1–5 days (stocked).

• Extended (4,001–6,000mm): 7–12 days (custom production).

• Cost Impact: +15% for rails >4,000mm (includes joint engineering and testing).

5. Quality Assurance:

• All custom rails undergo 100% dimensional inspection (laser scanning) and load testing before shipment.

• Guaranteed ±0.01mm straightness over entire length (vs. industry standard ±0.05mm).

Pro Tip: For CNC machinery requiring rails >4,000mm, we recommend segmented rails with 20mm overlap joints – this eliminates vibration and maintains P4 precision. Example: 5,200mm rail = 3 segments (2x2,000mm + 1x1,200mm) with precision joints.

Request a Quote for your exact length (min. 1,000mm) – we’ll provide a CAD drawing and lead time within 24 hours.
Note: OEM branding and custom mounting holes available at no extra cost.