MB Series – Heavy-Duty Grade, Mini-Bowl Style, Vibratory Tumbler

MB Series Bench Model Bowls | Mini Sonic Tumbler for Small Batch Finishing

The MB Series Bench Model Bowls are heavy-duty, mini-bowl vibratory systems designed for small batch production, scale-up testing, and everyday industrial finishing. This Mini Sonic Tumbler provides a compact solution for deburring, polishing, burnishing, cleaning, rust removal, and scale removal while taking up limited floor space.

The MB Series is designed as a starter system for manufacturers entering mass finishing or testing a finishing process before moving to larger equipment. Its smaller bowl configuration is also useful for small and delicate parts because the bowl-style motion helps minimize direct part-to-part interaction.

Mini Sonic Tumbler for Small Batch Finishing

The MB Series uses vibratory action to move parts and finishing media together through a controlled finishing cycle. Repeated contact between the workpieces and media can remove burrs, machining marks, oxidation, rust, and other surface imperfections.

A Mini Sonic Tumbler can be useful when production requirements do not justify a large floor-model system. The MB Series is available in several bowl capacities, ranging from 3 qt / 0.1 ft³ through 1.3 ft³, allowing users to select a configuration according to batch size and part requirements.

The smaller bowl design can be particularly useful when processing small or delicate components. Instead of relying on large equipment for every finishing job, manufacturers can use a compact system for testing, development, and smaller production runs.

MB Series Bench Model Bowls for Production Testing

MB Series Bench Model Bowls are designed for industrial applications and everyday use while maintaining a compact footprint. Kramer Industries describes the MB Series as an economical and durable starter system for users who are new to mass finishing and for scale-up testing.

The available models include bowl capacities of 3 qt / 0.1 ft³, 10 qt / 0.33 ft³, 20 qt / 0.66 ft³, and 1.3 ft³. Maximum load weights range from 10 lb to 150 lb depending on the model. These configurations allow the equipment to be matched to different batch sizes without moving immediately to a large production system.

The bowl is toroidal shaped with curved sides and is suspended on multiple springs. The direct-drive system operates on 110 volts, single phase, with adjustable amplitude to vary the vibratory action. These features provide control over the finishing process while maintaining the compact format of the equipment.

Bench Top Vibratory Tumbler for Small Parts

A Bench Top Vibratory Tumbler can be useful for small batch production, prototype work, process development, and quick parts testing. The compact design makes it easier to dedicate a machine to a specific finishing requirement without occupying the space required by a large floor-model system.

The adjustable amplitude allows the vibratory action to be changed according to the application. This can help users fine-tune the finishing process when working with different parts, media, or surface requirements.

The MB Series can also support both wet and dry processing. The appropriate media and compound depend on the material being finished and the desired result. Ceramic, plastic, synthetic, treated, and other finishing media can provide different levels of cutting and polishing action.

Kramer Industries provides multiple finishing media options that can be paired with vibratory equipment. Media selection should consider the part material, geometry, starting condition, required finish, and desired cycle time.

Small Vibratory Tumbler for Delicate Parts

A small vibratory tumbler can be useful when processing smaller components that could be damaged by excessive part-to-part impact. The MB Series bowl-style design promotes three-dimensional tumbling and is intended to minimize part-to-part interaction.

This makes the equipment suitable for applications where controlled movement is important. The smaller bowl can also help when only a limited number of parts are available for processing, such as during research and development or initial production testing.

The correct media size is important for small parts. Media should be large enough to provide effective contact while remaining appropriate for openings, slots, and other detailed features. The media-to-part ratio and cycle time should also be adjusted according to the desired surface result.

Mini Sonic Vibratory Tumbler Applications

The MB Series can be used for deburring, polishing, burnishing, cleaning, rust removal, and scale removal. The equipment can support short and long cycle-time applications, depending on the part, media, compound, and required finish.

A Mini Sonic Tumbler can also be used during process development before a larger machine is selected. Testing different media types, load conditions, and cycle times on a smaller system can help establish the finishing requirements for later production scale-up.

The compact design makes the MB Series suitable for shops that need flexibility without committing to a large finishing system. It can also serve as an additional machine when different parts require separate finishing processes.

Bowl Tumbler Design and Finishing Control

The MB Series uses a bowl-style configuration with curved sides. The bowl is suspended on multiple springs, while direct drive provides the vibratory motion. Adjustable amplitude gives the operator control over the intensity of the vibratory action.

A bowl tumbler can provide a different finishing motion from a tub-style or rotary barrel system. Kramer Industries’ finishing guidance notes that bowl-style small vibratory finishers are shaped like a doughnut and generally provide a less aggressive action than small tub-type vibratory finishers.

The choice between equipment types depends on the part material, geometry, required finishing action, batch size, and desired surface result. A bowl tumbler is particularly relevant when compact equipment and controlled processing of small parts are priorities.

Selecting the Right MB Series Model

The appropriate MB Series model depends on the required batch size, part dimensions, media volume, and available workspace. The smallest model has a 3 qt / 0.1 ft³ bowl capacity, while the largest listed MB configuration has a 1.3 ft³ capacity.

The maximum load weight also varies by model. Users should consider both the physical size of the parts and the combined load of parts and media when selecting equipment.

A small vibratory tumbler can be an effective starting point when the finishing process is still being developed. Once the process is established, the results can be used to evaluate whether a larger vibratory system is required for increased production volume.

Kramer Industries offers the MB Series as part of its broader range of vibratory finishing equipment, giving manufacturers options for moving from small-batch testing toward higher-volume finishing.

MB Series Specifications

The G-Class – Bench Model MB Series – Heavy-Duty Grade, Mini-Bowl Style, Vibratory Tumblers Specifications

G-Class – MB Series Model Specifications
Bowl	Heavy Duty Housing and Frame Construction Toroidal Shaped Bowl with Curved Sides Bowl is Suspended on Multiple Springs
	Model	Bowl Dimensions			Max Load Weight	HP	Bowl Capacity	Bowl Diameter	Overall Height	Floor Space	Weight
		A	B	C
	G- 100	10″	3 1/4″	7 1/4“	10 lb	1/8	3 qt / 0.1 ft3	10″	13″	8-1/2” x 8-1/2”	9 lb
	G- 330	15″	5 1/2″	53/4“	35 lb	1/5	10 qt / 0.33 ft3	15″	171/2“	16” x 16”	25 lb
	G- 660	17″	6 1/2″	61/2“	50 lb	1/5	20 qt / 0.66 ft3	17″	191/2“	16” x 16”	28 lb
	G- 1300	211/2“	7″	81/2“	150 lb	1/2	1.3 ft3	24″	40″		195 lb
Drive	Direct Drive 110 Volt, 1 phase Adjustable Amplitude to Vary Vibratory Action
Housing & Bowls	Constructed of Durable HDPE Plastic and Metal for Lightweight Portable Use
Features	Heavy Duty HDPE Polymer Bowl Adjustable Amplitude Sound Cover Flow-through Drain High Energy Stand and Timer included (G-1300 only) Dump Chute (G-1300 only)
Optional Accessories	Models G-330 and G-660 Stand Pack 5000 with Timer Sump Pak 1000 Filter Pack 4001 Models G-1300 Variable Speed Drive Sump Pak 1000 Filter Pack 4001