300mm Small Laboratory Automatic Roll to Roll Coating Machine

Product Overview

This compact roll-to-roll coating system is designed for small-batch laboratory production of lithium battery electrode sheets. It integrates doctor-blade slurry coating, controlled hot-air drying, winding, and automatic web guiding into one production sequence. By replacing manual slurry scraping and separate oven drying, the equipment improves coating uniformity and drying efficiency while providing a repeatable process platform for electrode development.

The unit is suited to universities, battery-material laboratories, and research groups preparing coated copper foil, aluminum foil, and similar metal substrates. It supports continuous single-side coating for experimental electrodes where wet-film consistency, controlled drying, and orderly rewinding directly influence downstream cell fabrication and material evaluation.

Precision-machined slurry-contact components, a high-precision coating-roll assembly, stable variable-frequency drive control, and PID temperature regulation provide dependable operation under demanding laboratory schedules. Its integrated structure keeps the installation footprint compact while bringing coating, drying, tension handling, and rewinding functions into a practical, coordinated workflow.

Key Features

• Continuous Doctor-Blade Coating: The equipment uses a single-side, continuous doctor-blade coating method. The blade-to-roll gap is adjustable, allowing operators to set the process dimension required for a specific slurry and electrode-development task while maintaining an even coating layer.

• High-Precision Coating Roll: A precision coating-roll device supports stable coating performance, with roll circular runout specified at ±0.001. This controlled mechanical foundation helps maintain consistent web contact and reduces process variation during continuous electrode preparation.

• Controlled Coating Accuracy: Coating accuracy is specified at ≤±0.002 mm. For laboratory electrode work, this level of control supports more consistent coated-sheet preparation than manual scraping processes and provides a more repeatable basis for experimental comparison.

• Variable-Frequency Main Drive: The main transmission uses variable-frequency speed regulation with a wide adjustment range and constant, reliable speed performance. Its constant-torque speed-control arrangement supports steady web movement through the slurry tank, doctor blade, drying section, and take-up stage.

• Hot-Air Circulating Drying: The 1.2 m single-zone drying box combines stainless-steel heating tubes with hot-air circulation. This arrangement promotes uniform temperature throughout the chamber, improves heat efficiency, and helps avoid burning the electrode sheet during drying.

• PID Temperature Regulation: Furnace temperature is adjustable from room temperature to 150℃, with PID control for reliable, high-accuracy temperature management. Operators can align drying conditions with the requirements of the coating process while retaining a controlled thermal environment.

• Automatic Web Guiding: The take-up section uses an automatic deviation-correction system with a control accuracy of ±0.2 mm. This feature helps maintain orderly winding after drying and supports alignment control over the continuous coating run.

• Stainless-Steel Slurry-Contact Construction: Parts that contact slurry in the coating system are made with stainless-steel construction. The design is paired with precision-machined components and an adjustable, uniform doctor-blade thickness arrangement for practical laboratory slurry handling.

• Integrated Compact Equipment Layout: The system combines the unwinding roll, magnetic-powder brake, slurry tank, coating roll, take-up tension control, drying box, main drive, fan, frame, and electrical section in one structure. This integrated configuration simplifies installation and commissioning while reducing occupied floor area.

Applications

Technical Specifications

Why Choose This Product

• Built for repeatable electrode work: The coordinated coating, drying, web-handling, and take-up sequence gives laboratory teams a more consistent production route than separate manual scraping and oven-drying steps. This improves operational repeatability when comparing slurry formulations or process settings.

• Precision where it affects the sheet: The combination of ±0.001 coating-roll circular runout, ≤±0.002 mm coating accuracy, adjustable blade-to-roll gap, and automatic take-up correction addresses the mechanical controls that matter during continuous foil coating.

• Durable thermal and slurry-handling design: Stainless-steel slurry-contact construction and stainless-steel heating tubes support routine laboratory operation. The heating arrangement is specified for high thermal efficiency, long service life, and convenient installation, while circulating hot air helps maintain uniform chamber temperature.

• Practical control of critical process variables: Variable-frequency, constant-torque drive regulation provides a broad speed-adjustment range with steady operating speed. PID temperature control and adjustable room-temperature-to-150℃ drying give operators direct control over the coating and drying conditions available on the unit.

• Efficient integrated installation: Combining unwinding, magnetic-powder braking, coating, drying, tension management, winding, fan, and electrical functions in one compact structure reduces setup complexity and occupied space for laboratories building or upgrading an electrode-development line.

Contact us for a quote or a custom laboratory electrode-coating solution matched to your substrate, slurry, and process requirements.

Trusted by Industry Leaders