Kato Unitrack HOn30 Curved Track Section – 183mm Radius 45° (4-Pack)

TheKato 52-220 Unitrack HOn30 curved track sectionis a precision-engineered modular roadbed track component designed for smooth, reliable operation in narrow gauge model railroad layouts. Each section features a 183mm (7″) radius and 45-degree curve geometry, allowing for accurate circular and oval layout construction with consistent alignment and electrical performance.

This 4-pack is ideal for compact layouts, industrial rail scenes, and space-efficient model railroad designs where tight-radius geometry and dependable track connections are essential.

Precision Kato Unitrack Curve Geometry

• 183mm (7″) radius curved track sections
• 45-degree arc segments for modular layout construction
• Integrated molded roadbed for stability and realism
• UniJoiner system ensures secure mechanical and electrical connection

Kato Unitrack is widely regarded as one of the most reliable sectional track systems in model railroading, offering tool-free assembly, long-term durability, and consistent electrical conductivity across all layout types.

Ideal for Compact and Narrow Gauge Layouts

The tight-radius 183mm geometry makes this track ideal for:

• Small shelf or tabletop layouts
• Industrial switching and branch line scenes
• Compact oval and loop configurations
• Modular narrow gauge railroad systems

Expand Your Kato Model Railroad System

This curved track integrates seamlessly into the full Kato ecosystem, making it a core building block for expanding and refining your layout design.

• Kato Model Train Collection – complete brand ecosystem and accessories
• Kato HO Scale Model Trains – larger scale high-detail rail systems
• All Model Trains & Railroad Systems – full railroading catalog hub

Build Reliable Layout Geometry with Confidence

Kato curved Unitrack sections ensure precise geometry alignment, eliminating common issues such as uneven joints or derailment-prone transitions. The modular design allows fast layout changes while maintaining professional-grade reliability.