Dynabrade 11203 Contact Arm Assembly – 5/8-inch Diameter x 3/8-inch Wide, 1/2-inch Platen for 1/2-inch Wide Belts (18-inch Long)

Overview

Dynabrade combines heritage, precision, and practical design to deliver belt work that fits into tight spaces and nuanced contours. The 11203 Contact Arm Assembly pairs a compact contact arm with a durable rubber wheel and a 1/2-inch wide platen, engineered to work with 1/2-inch wide belts up to 18 inches in length. This setup is designed to be easy to integrate into existing workflows, helping you achieve consistent material prep with less effort.

Premium versatility for belt work

When you need to blend welds, remove seam sealer, or refine contours, this arm assembly offers a focused tool path in hard-to-reach areas. Its design supports a range of finishing tasks, from light deburring to initial surface refinement, while maintaining steady belt contact for even results.

• Economical approach to blending, grinding, and scuffing in tight spots
• Effective in challenging geometries where larger tools struggle to reach
• Compatible with common belt widths for flexible workflow options

Design and performance details

The assembly features a 5/8-inch diameter contact arm with a 3/8-inch width and a 1/2-inch wide platen. The radiused rubber contact wheel supports smooth, controlled operation, while a pad-free platen helps maximize the contact area for consistent finishing. The system is designed to accept belts that are typically available in 1/4-inch or 1/2-inch widths and up to 24 inches long, providing options across different prep scenarios.

• Radiused rubber contact wheel for stable contact and reduced chattering
• Pad-free platen minimizes interference with the workpiece surface
• Wide belt compatibility across common widths to fit multiple tasks

Quality, support, and workflow value

Dynabrade’s approach emphasizes lasting tool performance and service. This arm assembly carries the brand’s emphasis on reliability, with a strong focus on engineered fit, durable components, and a robust support ecosystem. The product embodies the Dynabrade difference—engineered for efficiency, backed by service, and backed by a network of professional distributors to help you source parts quickly.

• Made in USA branding reflects a commitment to quality
• Extensive engineering and service support ensures reliability
• Global distribution network for quick availability