High-Quality Diaphragm High-Speed Coating Machine Factory & Manufacturer for the United States market

Advanced Production Solutions

Pairing Machine

High-Speed Shear Disperser

Lid Laser Welding Machine

Gravure Electrode Priming Coating Machine

The US Battery Boom & Demand for Diaphragm High-Speed Coating Technology

The United States is undergoing an unprecedented industrial transformation, driven by the rapid expansion of domestic electric vehicle (EV) battery manufacturing and grid-scale energy storage systems (ESS). Facilitated by federal initiatives such as the Inflation Reduction Act (IRA), automotive giants and battery technology innovators are building massive "Gigafactories" across states like Georgia, Michigan, Texas, Nevada, and North Carolina. This aggressive transition to clean energy demands a highly resilient, localized, and technically advanced supply chain.

At the core of every high-performance lithium-ion battery is the separator diaphragm. The quality, thickness, and uniformity of the coating on these diaphragms directly dictate the battery’s safety, energy density, lifecycle, and thermal runaway resistance. As US factories scale up production from gigawatt-hours to terawatt-hours, the demand for High-Quality Diaphragm High-Speed Coating Machines has escalated. Manufacturers require machinery that doesn't just operate faster, but maintains sub-micron precision under continuous, high-tension operating conditions.

Pengjin Technology, as a leading global manufacturer, bridges this technological gap by providing coating systems engineered specifically for the rigorous standards of the North American market. Our equipment integrates advanced automation, real-time closed-loop tension control, and cutting-edge slot-die or gravure coating heads to ensure flawless slurry application on ultra-thin separator substrates.

Leading the New Energy Frontier

Guangdong Penjin Intelligent Equipment Co., LTD.

Guangdong Penjin Intelligent Equipment Co., LTD. (referred to as "Pengjin Technology") is a national high-tech enterprise specializing in professional equipment solutions for the new energy recycling economy. Our primary offerings include NMP recycling equipment, NMP distillation equipment, coating machines, and more.

Committed to continuous innovation, Pengjin Technology holds 13 invention patents and over 50 utility model patents. Our team of nearly 1,000 employees, with around 20% dedicated to research and development, ensures continuous technological advancement. We serve global clients, adjusting our designs to meet specific regional certifications such as UL, CE, and ASME, which are crucial for seamless deployment in US manufacturing plants.

13+

Invention Patents

50+

Utility Models

1000+

Employees

10+

Incorporation

Corporate Philosophy & Vision

We align our corporate values with the global energy transition, ensuring our technology drives efficiency while preserving the environment.

Philosophy

Innovative tech services for customer success and employee fulfillment, establishing long-term trust in the North American industrial sector.

Vision

Leading new energy intelligent manufacturing by delivering automated, ultra-precise coating and processing machinery worldwide.

Mission

Driving the development of the new energy circular economy, reducing carbon footprints through intelligent NMP recovery and closed-loop systems.

Values

Honesty, pragmatism, pioneering spirit, and the relentless pursuit of excellence in every piece of equipment we manufacture.

Technical Excellence: Diaphragm Coating in Modern Gigafactories

The production of battery separator diaphragms is a highly delicate chemical and mechanical process. The raw polymer base (typically PE or PP) must be coated with ceramic materials (such as Alumina, $Al_2O_3$, or Boehmite) or organic polymers (like PVDF) to enhance thermal stability and electrolyte wettability. Achieving high speeds (often exceeding 50 to 100 meters per minute) while maintaining a wet coat uniformity deviation of less than $\pm 1.5\%$ requires state-of-the-art engineering.

Key Challenges Addressed by Pengjin Technology's Coating Machines:

Substrate Tension Control: Separator films are extremely thin (ranging from 5μm to 12μm) and highly sensitive to temperature and tension. Our machines employ multi-stage ultra-low tension control systems that prevent film stretching, wrinkling, or breaking during high-speed operations.
Advanced Drying Technology: High-speed coating requires rapid, uniform drying without disturbing the wet coating layer. We integrate high-efficiency, multi-zone air flotation ovens that suspend the web on a cushion of hot air, ensuring contactless, rapid drying that conforms to strict US environmental and safety standards.
Intelligent Closed-Loop Thickness Gauging: Real-time beta-ray or X-ray thickness measurement systems communicate directly with the automated slot-die head. If a deviation is detected, the system instantly adjusts the lip gap or slurry pump speed to maintain absolute coating consistency.

US Industry Trends: The Push for Sustainability & Closed-Loop NMP Recovery

In the United States, environmental regulations enforced by the EPA (Environmental Protection Agency) and state-level organizations (such as CARB in California) impose strict limits on VOC (Volatile Organic Compound) emissions. N-Methyl-2-pyrrolidone (NMP), the primary solvent used in PVDF-based separator coatings and cathode slurries, is classified as a hazardous substance.

Pengjin Technology distinguishes itself by offering integrated solutions. We do not just supply the Diaphragm High-Speed Coating Machine; we also design and manufacture world-class NMP Recycling and Distillation Equipment. By coupling the coating line with our recovery systems, US factories can recycle up to 99% of their NMP solvent, significantly lowering operational costs, ensuring regulatory compliance, and supporting the corporate green initiatives demanded by modern consumers and investors.

Chairman of Pengjin Technology - Battery Recycling and Coating Solutions Leader

Chairman's Philosophy

"With the rapid development of the lithium battery industry, the efficient use of resources and the steady improvement of efficiency are the top priority of enterprise operation and development. Pengjin Technology adheres to the corporate mission of 'driving the development of new energy recycling economy with technology' and provides more perfect NMP solutions for the majority of lithium battery manufacturers and NMP manufacturers."

"On the road of circular economy, the Pengjin team will take excellent steps, keep pace with time; work together for a win-win situation, and create a more efficient tomorrow. We are committed to NMP recycling, the NMP circular economy, and other resource recycling economies, driving high-tech development, and taking solid steps to promote the high-quality development of new energy and realize the green, circular, and low-carbon development of industries."

Certifications & Quality Management

Our engineering standards comply with rigorous global quality management protocols, ensuring safety, reliability, and seamless factory integration.

Pengjin Technology ISO Quality Certificate 1

Pengjin Technology Compliance Certificate 2

Pengjin Technology Industrial Design Certificate 4

Trusted by Industry Leaders

For many years, we have successfully responded to the requirements of reputed customers in the global market, building long-term relationships based on performance and reliability.

Localized Application Scenarios in US Manufacturing

Pengjin Technology’s equipment is designed to adapt to various specific production lines in the United States:

Electric Vehicle (EV) Battery Separators: The high-speed coating machine applies a uniform ceramic layer on polyethylene (PE) or polypropylene (PP) membranes, vital for the high-capacity pouch and cylindrical cells (like 4680 formats) used by major American EV OEMs.
Utility-Scale Energy Storage Systems (ESS): Thick-coated separator diaphragms are optimized for long-duration energy storage batteries, providing the enhanced durability needed for municipal and industrial grid installations in Texas and California.
Solid-State Battery R&D and Pilot Lines: Our high-precision slot-die coating mechanisms are adaptable to next-generation solid-state electrolyte coatings, allowing US research hubs to transition smoothly from lab scale to commercial production.