20 Cu Ft. Sweco FMS-20LR Curved Wall Long Radius Burnisher

20 Cu Ft. Sweco FMS-20LR Curved Wall Long Radius Burnisher

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SWECO Vibro-Energy Finishing Mills provide a unique three-dimensional vibratory motion of parts and media, insuring precisely controlled deburring and finishing. The SPIRAL BOTTOM provides uniform depth around the entire chamber which insures total unloading.

The Sweco FMS-20LR features a direct-drive motion generator design that provides maximum power to the chamber. This results in shorter time cycles and more versatile finishing operations than competitors’ equipment. This machine is strong enough to turn steel media or process thick steel stampings, yet can be tuned to perform delicate polishing work as well.

The Model FMS-20LR is equipped with semi-automatic parts separating accessories which may be used to quickly and simply remove finished parts from the machine at the end of the process cycle. The separating step is accomplished completely within the machine via an air actuated swing blade (dam). The media and parts climb up the swing blade and are separated on a stationary screen. Parts exit on top of the screen while media falls back into the mill. The unloading cycle is approximately five to eight minutes.


Diameter 93.50 Inches

Height 60.50 Inches

Load/Unload Height 46.00 Inches

Approx. Ship Weight 6500 Pounds


The Model FMS-20LR finishing chamber is lined with 95 durometer state-of-the-art polyurethane; hot-poured, hot-cured, and degassed for maximum density. This lining is the toughest, longest-wearing lining in the industry. The chamber incorporates one 5” diameter quick-release discharge door and two 6” diameter bottom drains with 1/8” x 7/32” self-relieving slots. The drains terminate with a 2-½” spout for customer connection. The swing blade is air-operated via an air switch, and is fabricated of cast polyurethane to prevent part damage.

Sweco finishing mills are distributed in North America

Sweco Vibratory Finishing Equipment

We Put Technology in MotionTM

One screen assembly is included with the unit; available in 5/8”, 7/8”, 1”, or 1-3/8” clear openings. The chamber is also equipped with compound feed nozzles mounted around the center column, connected with tubing to a coupling on the outside of the mill base.

Actual Chamber Capacity 20.0 Cubic Foot

Process Channel Width/Depth 14 x 14 Inches

Maximum Part Length 18 Inches

Maximum Gross Chamber Load 6000 Pounds

Min Lining In High Wear Areas 1 Inch

The finishing mill chamber is mounted on eighteen heavy-duty equally spaced spring assemblies; retained in place by the use of polyurethane spring spools, mounted to base top flange and chamber bottom. This design virtually eliminates spring failure and energy transmission to the floor.


A 20.0 horsepower, 230volt or 460 volt, 60 hertz, 1200 RPM, TENV, grease-lubricated SWECO Motion Generator of double-end shaft design, with two end bell assemblies. These motors are specifically built for Sweco, incorporate oversized spherical roller bearings, and provide longer service life than any competitors’ equipment. Eccentric weights, which provide the vibration source, are mounted to the upper and lower shaft ends. Amplitude levels can be adjusted to meet processing requirements by adding/removing upper and lower weight plates, and/or adjusting the angular relationship (lead angle) of the upper to lower weights.


NEMA 12 enclosure including a fused main disconnect, fused control transformer, variable speed drive, digital process timer, start/stop pushbuttons, manual/auto selector switch, compound control selector switch, and elapsed time meter.


One (1) Installation, Operation, and Maintenance Manual, one (1) Motion Generator Manual, and one (1) tube of grease for bearing lubrication are included with the machine. SPECIFICATIONS AND CONDITION ARE CORRECT TO THE BEST OF OUR KNOWLEDGE AND ARE SUBJECT TO YOUR VERIFICATION AND CORRECTION.