Views: 1 Author: Site Editor Publish Time: 2025-12-18 Origin: Site
Our factory, located in Shijiazhuang City, Hebei Province, China, specializes in the production of 4-section Lebus grooved drums designed for Building Maintenance Units (MBU) and Window Clean Machines (WCM). These products are critical components in façade access and cleaning systems for high-rise buildings, ensuring safe lifting, smooth wire rope movement, and reliable operation in all environments.
We supply high-quality winch drums to global markets, including Turkey, Europe, and Asia, providing dependable solutions that combine mechanical strength with precision engineering.
A 4-section Lebus grooved drum is composed of four modular drum segments, each precisely machined with Lebus grooves — a double-helical pattern that guides the wire rope evenly across multiple layers. This design ensures perfect rope alignment, reduced wear, and improved safety, especially in vertical lifting applications like MBU and WCM systems.
Compared with a single-piece drum, the 4-section split design allows for easier manufacturing, transportation, and maintenance, while maintaining the full advantages of Lebus groove technology.

Accurate Multi-Layer Rope Spooling
The Lebus groove design ensures each layer of rope winds neatly, maintaining uniform tension and reducing friction.
Modular 4-Section Construction
Simplifies installation and maintenance. Each section can be replaced or repaired independently, minimizing downtime.
High Structural Strength
Made from carbon steel or Q345B alloy steel, providing excellent load-bearing capacity and durability.
Corrosion Protection
Surface treated with epoxy coating, galvanizing, or marine paint for long service life in outdoor or humid environments.
Custom Groove Design
Each groove pattern is customized according to the rope diameter, number of layers, and load requirements of the MBU or WCM.
The 4-section Lebus grooved drum is ideal for various high-rise building access systems and lifting equipment, including:
MBU (Building Maintenance Units) for façade repair and maintenance
WCM (Window Clean Machines) for glass façade cleaning on skyscrapers
Suspended platform winches
Construction cradle hoists
Light-duty lifting equipment
With its precise rope management and stable operation, it greatly enhances the safety and performance of vertical lifting systems used in modern architectural maintenance.
| Parameter | Specification |
|---|---|
| Drum Type | 4-section Lebus grooved drum |
| Material | Q345B / Carbon Steel / Alloy Steel |
| Drum Diameter | 200 mm – 800 mm |
| Rope Diameter | 5 mm – 20 mm |
| Rope Layers | Single or multi-layer |
| Groove Type | Double helical Lebus groove |
| Surface Treatment | Epoxy paint / Galvanized / Powder coated |
| Application | MBU, WCM, and suspended platform winch systems |
All parameters can be customized according to the client’s machine model and working environment.
Each Lebus grooved drum is produced using CNC machining to ensure high precision in groove spacing and depth. Our production process includes:
3D design and simulation for accurate groove geometry
Ultrasonic weld testing (UT) and magnetic particle inspection (MPI)
Dynamic balance testing to ensure smooth rotation
Coating inspection for corrosion resistance
Our products comply with ISO, CE, and relevant safety standards for building maintenance and lifting equipment, ensuring long-term performance and safety.
Specialized in MBU and WCM Components – Decades of experience in façade access system parts manufacturing.
Custom Engineering Capability – Rope diameter, groove pitch, and drum size designed to your exact project specifications.
Modular and Efficient Design – 4-section construction simplifies assembly and reduces maintenance cost.
Reliable Surface Treatment – Long-lasting protection against corrosion, ensuring stable performance outdoors.
Professional Export Service – On-time delivery, technical documentation, and international packaging standards.
Our 4-section Lebus grooved drums are exported to customers in Turkey, Japan, Europe, and the USA.
We provide flexible shipping terms (FOB, CIF, or DDP) and ensure each product is securely packaged with rust-proof wrapping and shock protection for long-distance transport.
Comprehensive export documentation is included, such as material certificates, quality inspection reports, and engineering drawings.
For inquiries or technical support regarding 4-section Lebus grooved drums for MBU and WCM, please contact us:
Address: No. 8 Huaibei Road, Qiaoxi District, Shijiazhuang City, Hebei Province, China
Phone: +86-15630981289
Email: mariexie666@gmail.com
Our 4-section Lebus grooved drum provides a reliable and safe lifting solution for Building Maintenance Units and Window Clean Machines, ensuring smooth rope spooling and extended rope life. Its modular design, strong structure, and corrosion-resistant finish make it a perfect fit for high-rise building maintenance systems used around the world.
Trusted by clients in Turkey, Europe, and North America, we continue to deliver high-quality, customized Lebus grooved winch drums backed by professional engineering and consistent export service.
Choose strength, precision, and reliability — choose our 4-section Lebus grooved drum for your MBU and WCM systems.
