Precision Working Rolls (16–68mm) with Hard Chrome Plating

Our precision machined working rolls span diameters from 16mm to 68mm, configured to coordinate with chrome-plated back-up rolls to achieve reliable longevity and stable running performance amid intensive metal strip processing scenarios. After electroplated chrome surface treatment, the rolls gain elevated surface hardness reaching HV 800–1000, which effectively improves abrasion resistance and reduces friction coefficient. This matched roll set maintains steady performance over long production cycles and extends the service life of both roll assemblies and processed metal strips, even under continuous heavy load operation.

Working rolls installed on professional leveling equipment must comply with stringent manufacturing standards. Key product characteristics include uniformly distributed high hardness across the roll surface, a deep hardened layer inside the roll body, improved strength and impact toughness on roll barrels and roll necks, as well as superior anti-wear, anti-staining capability to withstand persistent heavy loads. These properties enable consistent operation of high-speed, large-capacity precision metal processing equipment, making the rolls an essential component for steel rolling lines and sheet & coil material fabrication.

Core Advantages of Working Rolls

Wide Dimensional Coverage

Available diameters ranging from 16mm to 68mm, our working rolls are precisely manufactured to satisfy diversified leveling requirements. They support the processing of ultra-thin electronic foils (0.1–0.3mm) and thick steel strips (3.0–8.0mm). Intermediate sizes are customized to adapt to different material properties and production parameters.

High-performance Anti-wear Surface Treatment

Chrome-plated back-up rolls adopt controlled electroplating technology to form compact and uniform coating with surface hardness of HV 800–1000. Compared with ordinary untreated rollers, abrasive wear can be reduced by 60–70%, maintenance intervals extended by up to 50%, and stable dimensional accuracy maintained throughout the whole service cycle.

Enhanced Operational Stability

Combining precision dynamic balancing and optimized roll core design, the working roll system suppresses vibration resonance during high-speed operation. Uniform tension distribution across the entire strip width ensures flatness tolerance within I≤2 and avoids surface defects caused by uneven tension.

Lower Friction and Higher Energy Efficiency

Micro-finished chrome surfaces achieve Ra ≤ 0.1μm, forming excellent contact surfaces and cutting friction coefficient by 40–45%. This reduces driving power consumption by 15–20%, prevents material adhesion and transfer, boosts production efficiency and lowers energy costs.

Application Scope & Raw Materials of Working Rolls

These working rolls are widely used in metal processing and steel rolling industries. They are normally produced from high-grade carbon steel or stainless steel. Reinforcement processes including hard chrome plating and heat treatment are adopted to enhance wear resistance and service lifespan.

As vital spare parts, they guarantee high precision and stable operation of production lines, rolling mills and sheet metal processing machinery.

Tension levelers feature high precision, efficiency and stability, creating continuous market demand in the below sectors: