Product Introduction 
The Wire bar coater operates on the Mayer rod principle. A wire-wound rod is drawn across a substrate at a precisely controlled speed, metering the fluid and leaving behind a uniform wet film. This benchtop unit features a dual-rail ball-screw transmission system for exceptional linearity and speed stability. The Annimet Testing & Control System V1.0, accessed via a 5-inch touchscreen, allows users to set speed, stroke length, and other parameters. The base plate is available in mold steel (standard), glass, aluminum alloy, or marble to suit different substrates and formulations. This instrument transforms manual coating into a standardized, digitized workflow, greatly enhancing repeatability and data reliability in the lab.

Key Features
Precision Linear Drive High-performance motor delivers stepless speed from 1 to 2000 mm/min (standard) or 1 to 200 mm/s (high-speed), with speed stability error <1%, perfectly simulating diverse production conditions.
Quantifiable Pressure Control A dead-weight or lever-arm pressing system enables digital setting and precise feedback of coating pressure, completely eliminating batch variations caused by manual “hand-feel”.
Ultra-Flat Reference Surface The mold steel base plate undergoes quenching and mirror-polishing to achieve flatness ≤±2.5 μm, providing the ultimate foundation for defect-free uniform coatings.
Premium Imported Wire Bars Standard configuration with Japanese OSP one-piece or American RDS wound bars, with inherent bar accuracy error <1 μm and thickness capability from 1.5 to 800 μm; optional smooth bars for sub-micron films.
Versatile Substrate Compatibility Mechanical clips and non-woven fabric clamps securely hold aluminum foil, copper foil, PET films, separators, and other flexible substrates.
Intelligent Touchscreen Control A 5-inch HMI running the Annimet control system allows intuitive setting of coating speed, length, and start/stop, ensuring a simple and reproducible operation.
Robust and Durable Construction The entire housing is crafted from 304 stainless steel, with a dual-rail, ball-screw, and synchronous belt drive system designed for long-term precision and easy maintenance.
Broad Material Applicability Suitable for laboratory preparation of lithium-ion battery slurries, perovskite precursors, nanomaterials, paints, inks, adhesives, and other advanced energy and chemical materials.

Main Technical Specifications 

FAQ 
1. What are the advantages of wire bar coating compared to doctor blade or slot-die coating?
Wire bar coating is simple, fast, and cost-effective, making it ideal for small-batch wet film preparation in the lab. It works excellently for low- to medium-viscosity fluids like inks and paints. For higher precision or high-viscosity slurries, doctor blade or slot-die modules can be selected as options.

2. How do I choose between the standard version (1-2000 mm/min) and the high-speed version (1-200 mm/s)?
The standard version covers a broad range and suits most research needs. The high-speed version reaches up to 12000 mm/min, designed to mimic high-speed industrial processes such as gravure or flexo coating, and is recommended when process simulation is critical.

3. The wire bar accuracy is marked as <1 μm. Does this guarantee the final wet film thickness error?
The bar accuracy refers to the manufacturing tolerance of the wire bar itself. The actual wet film uniformity also depends on slurry viscosity, particle size, flow behavior, and wet-to-dry shrinkage. The machine provides the highest baseline precision, which must be combined with optimized formulation and parameter settings for best results.

4. How should I select the base plate material?
Mold steel (standard), quenched and mirror-polished, offers the highest flatness for most applications. Glass is suitable when optical transparency or special surface chemistry is needed. Aluminum alloy is lightweight, and marble provides excellent thermal stability and vibration damping. Choose based on specific requirements.

5. Can the coater integrate heating or drying?
The standard configuration relies on natural curing without an integrated heater. After coating, the substrate with wet film can be removed and transferred to an external oven or hot plate. For integrated in-line heating or UV curing, customized solutions are available upon request.

6. Is it easy to change wire bars? Does recalibration be needed after?
Extremely easy. The wire bars feature a quick-change design; simply loosen the fixing screws to swap. Recalibration is generally not required after a bar change, but it is good practice to run a blank cycle and perform a trial coating to confirm thickness.

After-Sales Service 
Established in 2007 and with nearly two decades of experience, Shandong Annimet Instrument Co., Ltd. is a professional manufacturer integrating R&D, production, and sales of laboratory testing and sample preparation equipment. Quality is our foundation. We are your bridge from concept to reality. We deliver more than just instruments — we deliver confidence. This Wire Bar Coater comes with a 12-month warranty and lifetime technical support. Our professional team offers 24/7 service response, free installation guidance, operation training, and coating process consultation. For any inquiries, please contact our customer service team; we are dedicated to providing comprehensive pre-sales, in-sales, and after-sales support. Hotline: 400-9933-057, Email: anmt_test@126.com.