L69B1 Tower Crane Mast Section | 2.0×2.0×3.0m Yongmao Mast Section
L69B1 Mast Section
Heavy-duty L69B1 tower crane mast section for tower height extension and replacement. Designed for Yongmao tower cranes, with 2.0 × 2.0 × 3.0 m structure and bolt connection system.
Quick Specifications
| Model | L69B1 |
| Size | 2.0 × 2.0 × 3.0 m |
| Connection | Bolt connection |
| Bolt Qty | 32 bolts total |
| Brand | Yongmao |
Product Overview
The L69B1 mast section is used for tower crane height extension and structural replacement. It features a strong welded steel structure and integrated ladder for easy climbing and maintenance.
Main Features
Strong Structure
Heavy-duty steel frame ensures stability and durability.
2.0m Standard System
Compatible with common 2.0m mast systems.
Bolt Connection
Each side uses 8 bolts, total 32 bolts.
Ladder Design
Built-in ladder for safe climbing and maintenance.
Applications
- Tower crane height extension
- Mast replacement
- Used crane refurbishment
- Export spare parts supply
L69B1 vs L69B2
| Item | L69B1 | L69B2 |
|---|---|---|
| Manufacturer | Yongmao | SANY |
| Connection | Bolt (32 bolts) | Φ65 Pin |
| Material | Not specified | Angle steel + round tube |
| Compatibility | Yongmao | Multiple brands |
