LRB Series – Long Radius Bowl Finishers

LRB Series Vibratory Finishing Machines

Kramer LRB Series Long Radius Bowl Finishers are engineered for aggressive, consistent vibratory finishing of stampings, castings, forgings, and machined components. As industrial-grade vibratory finishing equipment, these systems provide the durability and performance required for demanding production environments.

The long-radius design incorporates an extended working channel, larger bowl diameter, and reduced channel width to deliver higher amplitude and improved energy transfer through an expanded center column. This advanced vibratory finishing machine geometry produces faster cycle times, more uniform part processing, and superior handling of long, narrow, or delicate parts. The extended channel allows components to remain properly spaced during processing, reducing part-on-part contact while improving surface consistency.

The LRB Series vibratory finisher is suitable for deburring, grinding, edge radiusing, pressure deburring, polishing, and ball burnishing, and is capable of both continuous and batch operation. Machines can operate as stand-alone units or be integrated into fully automated vibratory finishing systems.

How It Works

Parts and finishing media are processed together inside the polyurethane-lined work channel. Upon cycle completion, finished parts discharge onto an internal screen deck that separates media from parts efficiently and reliably, supporting consistent vibratory finishing results.

The heavy-duty, welded steel construction is paired with a proven oil-lubricated drive system featuring double-row spherical bearings, a large-diameter shaft, and a thick-walled cartridge. The conical structure and center tube are designed to maximize energy transfer into the process channel while minimizing structural stress, ensuring long service life and reduced maintenance. This robust construction makes the LRB Series an ideal vibratory deburring machine for high-volume industrial applications.

Advantages

• Higher amplitude for faster, more aggressive finishing
• More uniform part processing
• Improved feed and flow for longer parts
• Superior unloading and roll characteristics/li>
• Space-saving, low-profile design for easy loading and unloading
• Ideal for processing steel media

Key Features

• Wet or dry processing capability
• Optional variable speed drive for process flexibility
• Adjustable weight system
• Durable, low-maintenance design
• Fast, consistent deburring results

Specifications

**Manual grease lubrication standard on 1000 and larger models. Control panel optional

Results

The Kramer LRB Series Long Radius Finishers deliver measurable gains in labor efficiency, throughput, and operating cost reduction. Built for industrial duty, this vibratory finishing machine platform offers long-term reliability, minimal downtime, and consistent finishing performance.

With compact footprints and cycle times typically ranging from two to fourteen minutes, LRB machines are well suited for facilities focused on scalable growth. Custom control panels and system configurations are available to meet specific application requirements. Whether deployed as a stand-alone vibratory finisher or integrated within a fully automated vibratory finishing line, the LRB Series provides durable, high-performance vibratory finishing equipment for demanding surface preparation applications.