Overview
RDS 31 #L2000φ 10 is a wide-wound Applicator rod produced by the American RDS company with more than 80 years of history. The product is based on the classic "Mayer rod" Spreader method and is manufactured by wire winding process. It has the characteristics of simple, accurate, uniform and cost-effective Spreader. It is suitable for quickly changing coating weight and obtaining a wide range of film thickness on a variety of substrates, meeting the Spreader needs of many industries such as Coating, Window Film, Tape, Release Paper, Photovoltaic Film, Wall Covering Materials, Specialty Paper.
Features
1. Originating from the American RDS brand, with more than 80 years of professional production experience.
2. Using the classic wire winding (Mayer rod) process, the Spreader method is simple, accurate, uniform, and cost-effective.
3. Spreader flexibility, suitable for a wide range of substrates, can quickly change the coating weight and film thickness.
4. Customized service is supported, and production can be carried out according to specific needs without minimum order quantity restrictions.
5. The mandrel is made of stainless steel 303 and has a chrome-plated surface to enhance durability.
6. Wire winding rod design allows for disbonding and re-winding, helping to save costs and reduce waste.
Principle
The working principle of this wire-wound Applicator rod is based on the Mayer rod Spreader method. When the coating flows through the regular gap (cavity) formed by the stainless steel wire wound on the mandrel, the excess coating is scraped off, and the amount of coating retained in the gap determines the wet film thickness transferred to the substrate. The wet film thickness is mainly determined by the diameter of the wound steel wire. The diameter of this model steel wire is 0.79mm (corresponding to the 31 #specification), which can form a wet film thickness of about 78.7μm.
Applications
Coating, window film, adhesive tape, release paper, photovoltaic film, wall covering material, special paper
Standards
The data did not mention specific compliance criteria.
Steps
1. According to the Spreader process requirements, select the appropriate wire-wound Applicator rod model (such as RDS 31 #L2000φ 10).
2. Install the Applicator rod correctly on the clamping device of the Spreader equipment (such as the Spreader Measurement Station) to ensure that the clamping at both ends is firm (the clamping length at both ends of this model is 50mm).
3. Adjust the pressure between the Applicator rod and the support roll or substrate (or via web tension control) to obtain the desired coating effect.
4. Coating evenly flows through the effective Spreader area of the Applicator rod (the effective application width of this model is 1900mm).
5. Start the device for Spreader, Applicator rod Measurement and scraping off excess Coating through the wire gap to form a uniform wet-film coating on the substrate.
6. After the Spreader is completed, clean the Applicator rod in time to prevent the Coating from drying up and blocking the gap.
Notice
• Before operation, please confirm whether the Applicator rod model (such as wire diameter, rod body diameter, length) meets the current Spreader process requirements.
• When installing, ensure that the Applicator rod is firmly clamped, and maintain the correct parallelism and pressure with the substrate or back roller to ensure the uniformity of the Spreader.
• During the Spreader process, pay attention to the matching of the Coating viscosity with the selected Applicator rod model. High viscosity Coatings may need to consider using notched rods or double-wound rods to reduce clogging.
• Applicator rods should be thoroughly cleaned in time after use, especially at the wire gap, to prevent residual Coating curing from causing blockage or affecting the next Spreader accuracy.
• The wire rod can be disbonded and rewound for repeability, and care should be taken to avoid damage to the wire or mandrel during operation.
• This product is a precision Spreader tool and should be stored properly to avoid bumping, bending or corrosion to maintain its Measurement accuracy and service life.
