Corrugated carton roller

steeltungsten carbideprecision

Overview
The quality and performance of a corrugating roll begin with the base material and are completed by the surface coating. BHS Corrugated uses a specially developed steel composition that retains hardness and dimensional stability at elevated temperatures. Innovative coatings such as tungsten carbide and Super Micro Chrome provide wear resistance and predictable running properties.

Base material
The corrugating roll's performance is determined by the base material. BHS Corrugated supplies an exclusive special steel developed for these applications, which maintains hardness in hot operating conditions, improving availability, ensuring consistent corrugated board quality and reducing life-cycle costs.

Reliable hardness

• Steel grade developed for BHS Corrugated requirements
• Exclusively available from BHS Corrugated
• Standard commercial steels are unsuitable at these temperatures

Hardness: the basis for good performance

• Allows up to 2–3 regrinds
• No post‑hardening required after production
• Hardness remains stable over the service life

Surface coating
To meet corrugated board production demands, BHS Corrugated applies a tungsten carbide coating developed in‑house. The coating process yields high hardness, improved wear resistance, strong adhesion to the base material and low surface roughness. The tungsten carbide layer preserves a constant caliber height across runtime and working width; uniform carbide distribution produces high density and hardness. As an alternative, the Super Micro Chrome coating (≈100 µm) offers good running properties due to its special microstructure. Using the WLF (tungsten lapping finishing) process, BHS Corrugated achieves surface roughness < 0.2 µ Ra for optimum flood formation on common medium papers.

Our coatings

• Tungsten carbide coating: high hardness, wear resistance, strong adhesion, low roughness, constant caliber height
• Super Micro Chrome coating: ≈100 µm thickness with microstructure for good running properties
• WLF (tungsten lapping finishing): surface finish < 0.2 µ Ra

Technical characteristics / specifications

• Base material: specially developed steel composition retaining hardness and stability at high temperatures
• Coating types: tungsten carbide; Super Micro Chrome (≈100 µm)
• Surface finish (WLF): < 0.2 µ Ra
• Coating properties: high carbide density, excellent adhesion to base material, low roughness, constant caliber height
• Durability: high wear resistance and stable running properties
• Maintenance: up to 2–3 regrinds possible; no post‑hardening required
• Application benefits: consistent corrugated board quality, extended availability, improved cost-effectiveness