3.5 LEVEL HELIX for Kato Unitrack 2-220 & 2-230

PROSES Helix for Kato Unitrack 2-220 & 2-230 (610 mm / 670 mm, 3.5 Levels)

Optimize your layout with the PROSES Modular Helix V3, designed specifically for Kato Unitrack 2-220 and 2-230 and also suitable for compatible flexible track. This double-track, 3.5-level helix uses large 610 mm and 670 mm radii, providing a very gentle gradient for smooth and reliable train operation.

Key Features

• Modular Design: 3.5 loops (levels) with quick and easy assembly
• Perfect for Kato Unitrack: Designed for Kato Unitrack 2-220 and 2-230 curved track
• Flexible Track Compatible: Can also be used with suitable flexible track
• Double-Track Layout: Ideal for simultaneous up and down traffic
• Low Gradient Design: Large radii provide an exceptionally gentle incline for reliable running of long trains

Dimensions & Technical Details

• Track Radius:
– Inner: 610 mm (24")
– Outer: 670 mm (26 3/8")

• Track Bed / Segment Width: 15 cm (5.9")
• Number of Levels: 3.5
• Vertical Clearance Between Levels: 8 cm (3.15")
• Total Height: 34 cm (13.4")
• Overall Width: 143 cm (57")

Gradient

Average Track Gradient: 2%

The large radii and gentle 2% gradient provide smooth and dependable operation, making this helix particularly suitable for long passenger trains and other consists that benefit from a low incline.

Easy & Flexible Assembly

All PROSES helices can be assembled clockwise or anti-clockwise, allowing:

• Entry or exit from left or right
• Entry or exit from top or bottom

This flexibility makes the helix suitable for a wide variety of permanent and modular model railway layouts.

Compatibility

Designed specifically for Kato Unitrack 2-220 (R610 mm / 24") and 2-230 (R670 mm / 26 3/8") double-track configurations.

It can also be used with compatible flexible track, making it suitable for custom track arrangements while maintaining the same large-radius geometry and gentle gradient.