HZ-220 Centrifugal Barrel Finisher

HZ-60 centrifugal barrel finishing machine with lid open.

HZ-220 Centrifugal Barrel
Finishing Machine

The HZ-220 is a full-sized industrial finishing machine. With a total capacity of 8 cubic feet, it is the second-largest machine in our HZ-Series, making it an ideal choice for those with large parts or high production volumes. Equipped with a cover lift, this model makes lifting the lid off your barrels a breeze.

Machine Type: High Capacity
Max Part Size: 26.5″ L x 10″ D
Barrel Dimensions: 27.375″ L x 11″ D
Popular Industries: Automotive & Transportation, Rubber, Fabricated Metal Products

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HZ-220 Basic Operation

The HZ-220 Centrifugal Barrel Finishing Machine is a high-energy finishing machine. It uses the pressure and friction created through centrifugal force to quickly remove excess material, polish part surfaces, and create a uniform finish. The finish achieved by the HZ-220 is isotropic, meaning parts are polished uniformly and evenly in all directions, something that cannot be achieved by hand finishing.

With variable frequency control, you have complete control over the speed of the tumbling process, allowing you to achieve anything from a simple polish to an aggressive deburring and radiusing at speeds of up to 135 RPM.

This machine can be fully customized with a range of accessories, including a touchscreen control panel, parts separator, drain pan, infrared safety curtain, among others, making it a highly adaptable solution for your specific finishing needs. See the accessories table for more information on customizable options.

How It Works

Centrifugal barrel finishing, also known as centrifugal barrel tumbling, operates on the “Ferris Wheel” principle with a one-to-one ratio of barrel rotation to turret rotation. The process involves loading four barrels with a mixture of parts, water, compound, and media, which are filled to around 50-80% capacity. As the machine rotates, the barrels spin around the turret and on their own axis, creating a sliding force inside the barrel.

HZ-220 Features and Benefits

Full-size production

This model provides more than five times the capacity and efficiency of MFI’s compact centrifugal barrel tumblers like the HZ-40.

Deep barrels

At 11” in diameter, these barrels are ideal for wider parts. Each barrel can be divided into 21 individual chambers.

Built-in cover lift

Easily lift off your barrel lids, eliminating the need for excessive force when loading and unloading the machine.

Reduce manual labor

Manual labor and handwork can be very time-consuming, expensive, demanding, and dangerous. Our HZ-Series Centrifugal Barrel Finishing Machines take the handwork out of finishing.

Short cycle times

Clean up metal, acrylic, rubber, and other materials in just minutes, rather than spending hours or days doing it by hand or using other finishing methods.

Quieter operation

Compared to vibratory equipment, this series runs much quieter. They can be installed in places you wouldn’t want vibratory machines installed, such as where other machines’ tolerances may be affected.

Achieve a mirror-like finish

Nearly impossible to achieve by hand, our polishing machines can achieve a mirror-like finish on a variety of parts.

Save time and money

Due to the friction and force created by these machines, they run much more efficiently, using less media, water, and compound compared to other finishing methods.

Safe and easy operation

The integral hood switch and two-button jog requirement makes this series extremely safe to operate. The hood is securely locked during cycles. A built-in cover lift, timers, and controls makes running the machine simple.

HZ-220 Barrels

The HZ-220 Centrifugal Barrel Finisher features four 27.375” wide by 11” diameter barrels. The barrels come with removable lids that are secured with cam locks for safe and efficient operation. The machine is equipped with an air-driven cover lift that is controlled by a toggle switch located on the control panel. This feature allows for easy removal of the barrel covers.

With 20 divider slots, it is possible to create 21 individual chambers within each barrel if utilizing our optional barrel dividers. This allows operators to separate parts into several different chambers within each barrel. This is a critical feature when part-on-part impingement needs to be avoided.

Get Stocked Up on the Essentials

Shop our media and compound store

HZ-220 Recommended Accessories

HZ-60 Separator

Part & Media Separator

  • Simplify the media & part separation process
  • Dump fully loaded barrels
  • The machine vibrations separate the media & parts out of the machine and into bins
MFI Table Tank pulled out

Processing Table

  • Collects water and drainage during the loading/unloading process
  • Grip strut floor surface to prevent operator slips and falls
HZ-175 Centrifugal Barrel Finishing.

Barrel Dividers

  • Create separate chambers inside each of your barrels
  • Reduce part-on-part impingment
  • Available for all HZ-Series models (except HZ-12)
PLC Controller

PLC Touchscreen

  • Store processes as recipes for easy process selection
  • Replaces the analog cycle start buttons
  • Allows for better monitoring of machine use and time

Additional HZ-220 Specs & Resources

Main Motor
  • 15 HP
  • Totally Enclosed
  • Three Phase, 60 hertz
Barrel Rotation Motor
  • 2 HP, 230/460 volt, 3 phase, 60 hertz
Machine Voltage
  • 230/460 volt (Please specify upon order)
Total Capacity
  • 8 cubic feet
Approximate Shipping Weight
  • 5200 lbs. (Machine only)
  • 7000 lbs. (with Drain pan option)
  • Variable Frequency
  • Allen-Bradley, PowerFlex 525
Overall Dimensions
  • 86″L x 57″W x 106″H (machine with cover lift)
  • 114” x 95” x 86” footprint with drain pan option
Machine Construction
  • Heavy duty steel
  • All welded construction
  • Reinforced, gusseted, and welded to maximum strength
  • Heavy-duty powder coat
  • Scratch resistant
Barrel Construction
  • 27.375” L x 11” W
  • Four hexagonal barrels with removable lids
  • Cam locks for secure operation
Barrel Liners
  • Hot poured polyurethane
  • 1/4” thick
  • Field replaceable
  • 20 Divider slots, 21 individual chambers possible
Barrel Cover Lift
  • Air driven system for removing covers
  • Controlled via toggle switch on control panel
Control Panel
  • NEMA 12 enclosed panel
  • UL Certification Available at Additional Cost
  • PLC Option Available at Additional Cost
  • 0-100 Hour cycle timer mounted on panel
  • Power jog of turret
  • Automatically stops the turret when a stop is activated or cycle is completed
  • Activated if door is opened
Safety Interlock
  • Prevents door from being opened during operation
  • Machine must be powered on in an idle mode to disengage lock
  • Can only be opened once cycle is finished

Vibratory Media Separator
  • Dump fully loaded barrels inside machine
  • Media and parts are separated through screens and vibration
  • Media and parts travel out of machine to bins
Spray Header for Separator
  • Water spray bar that runs automatically when separator is running to clean media and parts
Drain Pan
  • 100”L X 79-1/2”W X 8-1/2”H
  • Collects any water drainage during loading/unloading
  • Grip strut floor surface to prevent operator slips and falls
Processing Table and Sludge Tank
  • Constructed of 1/2” P.V.C. and Anodized aluminum frame
  • Includes three compartment sludge tank mounted on casters for easier mobility
  • Sludge tank can be sold separately
Barrel Dividers
  • Made from NYLOIL®  A cast nylon with built-in oil lubrication
  • Provides superior machinability, performance, and durability compared to other plastic
PLC Controller
  • Horner Electric EXL6
  • Store recipes and processes
  • Maintenance reminders and machine diagnostics
  • Automated fwd/rev and speed adjustment
Rinse Screen
  • Fits over barrel and dividers
  • Attaches with quick latches
  • Spray out dirty water and debris without dumping barrels
Infrared Safety Light Curtains
  • Disables machine if curtain is broken while door is open during loading/unloading
  • Added layer of safety
Light Tower Indicator
  • Visual indicator of machines status
  • Can be customized to match existing equipment
Media Return System
  • Operated with foot pedal
  • Lifts media to bench height after media baskets are slid onto platform
  • Reduces lifting requirements on operators
Custom Logo/Paint
  • Paint matched to customer color scheme requirements
  • Sticker Logo provided by MFI or Client

Centrifuge Module – CF55 SD Series MicroseparatorTM

  • Clean and process effluent from tumbling process
  • Processed wastewater is safe to send to drain or be used in a recycling system
  • Solids are collected through centrifugal action of rotor via a reusable liner
Automatic Door Opener
  • Makes opening main access door easier
  • Eliminates need for lifting on operator
  • Required for running parts
  • MFI Stocks all consumables used in testing process
  • Media ships in 50 or 55 pound quantities
Media Storage Rack
  • Keep media out of the way when not in use
  • Industrial powder coated steel construction
  • Made to fit 12 MFI gray media bins

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