Grooved Metering Rods
Buschman first developed grooved metering rods in 1977 and today is the global leader in grooved rod engineering and manufacturing.
Also known as rollformed rods and threaded rods, a grooved metering rod is a stainless steel rod rolled through a set of dies to form a thread into the rod surface. Paper mills and converting mills use grooved metering rods to coat starches, pigments, adhesives and other coatings onto paper, films, foils, cardboard, and other web surfaces.
Threads can be created to conform to many profiles and customized to optimize the coating process, thus allowing for more precise and cost-effective metering than that of wire-wound rods.
The unmatched precision of Buschman’s grooved metering rods ensures consistent quality, stability, and long rod life.
Our grooved metering rods are rollformed using the finest stainless steel for the most demanding applications. Thread profiles are custom-engineered for your machines and coating applications. Buschman dies are the most accurate in the world, to tolerances of millionths of an inch. Our proprietary in-house manufacturing process renders a superior grooved coating rod that consistently performs to perfection, even for coatings with a high percentage of solids.
Buschman offers more than 28+ thread profiles, the most of any supplier in the industry. Our engineers can create a customized thread profile specifically for your application, optimized for superior performance and reduced costs in your coating operation.
Buschman has developed easy-to-use rod coating calculators as a starting point for determining the correct rod size for your application. For true optimization, we strongly advise customers to work directly with us to determine the best size and profile.
Buschman’s Exclusive Rod Certification
Buschman grooved coating rods are certified to meet our quality standards. Every grooved rod we ship goes through more than 30 quality checks. We digitally scan thread accuracy during thread forming and chrome plating at sub-nanometer resolution to measure thread size and shape. You can be sure your metering rods will perform with precision.
Why Leading Paper Mills and Converting Mills Trust Buschman Grooved Metering Rods
- Over 28+ different thread profiles plus custom-designed thread profiles tailored to your specific application
- Consistent coating coverage that reduces rod lines, streaks, and defects, and can even help decrease coating consumption
- Precision manufactured from stainless steel rods with hard chrome coating to ensure longer rod life
- 100% input and output inspections for quality and consistency, rod after rod
- Service you can count on 24 hours a day, 7 days a week
| Applications | Specifications |
|---|---|
| Sizer / Starch Presses | Material: Stainless steel |
| Corrugated Coating Presses | Diameter: 6.35 mm – 38 mm (0.25-1.5in) |
| Adhesives for labels, tapes & Decals | Lengths: Up to 11 meters (456″); for longer lengths, contact us at +1 216 431 6633 |
| Glues and clays for papers, films & foils | Thread Size: Custom engineered for customer application |
| Pre-coat, base coat & top coat | Thread Shape: Custom engineered for customer application |
| Hot stamp foils & wax | Coating: Hard chrome 0.0076 mm – 0.075 mm (0.0003 – 0.0030in) |
| Other specialty & custom coating applications | Special ends: All special end configurations available |
Top-Quality PU and PE Rod Holders
Buschman rod holders are precision manufactured to give the rod a more uniform and consistent fit along the entire length of the holder. Our rod holders reduce rod vibration, increase rod and holder life, and promote a more uniform coating. We manufacture rod holders from Hot Cast Polyurethane (PU) and UHMW Polyethylene (PE).