NAKNOR

The registered company is 邢台纳科诺尔精轧科技股份有限公司 in Xingtai. Its company page covers development, production and sales of electrode calenders and also lists rolling work outside batteries. The laboratory, mass-production and supercapacitor categories are separate product paths, so pick the category first and then the configuration.

The national standards record names this legal entity as one of the drafting organizations for GB/T 45390-2025, which covers communication interfaces for battery-production equipment. That gives buyers a public identity reference. Thickness results on a laboratory calender and the communication interface supplied with your machine are separate matters to settle in the contract.

Calendering squeezes the dried coating between two rolls until it reaches the target thickness and density. Density drives energy, rate capability and how easily electrolyte wets the pores, which makes the calender one of the steps with the most direct effect on electrode quality. NAKNOR concentrates on this step, offering laboratory, mass-production and supercapacitor calenders, and applies the same rolling know-how to non-battery materials.

A good calender quote gives roll diameter and face width, maximum line force, roll heating, the gap or force control method and roll runout. Ask for thickness readings taken across the width after pressing, since roll deflection can leave the edges thinner than the middle. The coated width set at the coater, and the slitting plan that follows, should both fit inside the calender's usable width.

Each source below is the maker's own page or a public record, with the date it was checked. Ask the factory to confirm the figures for your order in writing.