Industry News

A magnet will not attract the tungsten carbide coating itself. However, whether a magnet can attract the entire "tungsten carbide coated roller" depends on whether the roller substrate is magnetic. For example: • If the substrate is carbon steel → magnetic → a magnet can attract it.

Jinhang Machinery, a professional roller manufacturer in China, not only manufactures various industrial rollers but also provides customized processing, deep processing, precision polishing, plating, hard chrome plating, and tungsten carbide spraying processes based on customer drawings, achieving perfect processing of mirror

Almost all industries that require material softening, plasticizing, coating, pressing, stretching, or shaping require heated rollers. In short, wherever a production line uses heat to influence material properties, heated rollers play a crucial role.

Hot water typically heats up faster in the low-temperature range (≤150℃). • Hot water heating roller → The medium transfers heat to the roller body more quickly → The roller body heats up faster. • Oil-guided heating roller → Heat transfer is slower → The heating rate is naturally slower.

Due to their performance characteristics, EPDM rubber rollers play a crucial role in many fields such as printing, papermaking, textiles, plastics processing, chemicals, food processing, and metal handling. Jinhang manufactures and processes various high-precision industrial rollers, including but not limited to rubber rollers.

The machining parameters of Jinhang, a high-quality industrial roller manufacturer in China, are as follows: • Maximum machined outer diameter: 2000 mm • Maximum machined length: 8000 mm • Maximum mirror roller surface roughness: RA 0.005 μm • Maximum overall accuracy (coaxiality / circular runout): 0.002 mm

The fastest cooling speed generally refers to: Cooling rollers with a bidirectional spiral flow channel + thin-walled structure + high thermal conductivity material + mirror finish + low-temperature chilled water medium.

Cooling roller helps packaging materials maintain their mechanical properties and appearance characteristics by rapid and uniform cooling. For example, plastic film can avoid warping or shrinkage caused by thermal stress under the action of cooling roller, thereby ensuring the thickness uniformity and flatness of the film.

Compared with traditional rollers, the surface flatness and finish of mirror rollers have been greatly improved. This smooth surface not only reduces the friction coefficient, but also greatly reduces the occurrence of surface damage during operation.

Stainless steel itself has higher tensile strength and toughness, but compared with chrome plated roller, the hardness of stainless steel roller may be slightly inferior. Therefore, stainless steel rollers may suffer certain wear and tear when operating for a long time or facing high-intensity pressure.

Polyurethane rollers have good flexibility, can absorb impact and reduce noise, and have good tolerance to most industrial chemicals. Compared with tungsten carbide, it is light in weight, low in cost, and not easy to cause damage to equipment.

The electroplating process of water quench roller usually includes the following key steps: 1. Pretreatment · Degreasing · Pickling · Water washing · Electrolytic cleaning 2. Electroplating layer deposition · Nickel plating · Chrome plating · Copper plating · Composite plating 3. Post-treatment · Passivation treatment · Drying · Polishing treatment · Hardening treatment 4. Quality inspection and testing · Thickness detection · Adhesion detection · Hardness test · Corrosion resistance test