HZ-175 Centrifugal Barrel Finisher

HZ-60 centrifugal barrel finishing machine with lid open.

HZ-175 High-Energy Centrifugal Barrel Finishing Machine

The HZ-175 is a full-sized industrial finishing machine known for its long barrels. At 48” long, the HZ-175 has the longest barrels of all the HZ-Series machines. It also has a wider diameter than half the models that MFI offers. This longer barrel capacity caters perfectly to customers with medium-sized parts that are longer than average.

Machine Type: High Efficiency
Max Part Size: 47″ L x 7″ D
Barrel Dimensions: 48″ L x 8″ D
Popular Industries: Firearms & Munitions, Knives, Aerospace

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HZ-175 Basic Operation

The HZ-175 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-175 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 can control the speed of the tumble. Customers can achieve a simple polish at low speed or even aggressive deburring and radiusing at higher speeds, reaching up to 150 RPM.

This machine can be fully customized with a touchscreen control panel, parts separator, drain pan, infrared safety curtain, and more. See the accessories table for more information on customizable options.

HZ-175 Features and Benefits

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Full-size production

With the longest barrel and 8” diameter, you can run more parts with less media than our HZ models with 12” diameter barrels, saving money on media usage.

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Long barrels

At 48” long, these barrels are the longest in the HZ-Series of machines and ideal for longer-than-average parts. Each barrel can be divided into 21 small individual chambers.

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Auto Door

Automatically open and close the machine door with the push of a button.

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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.

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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.

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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.

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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.

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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.

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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.

HZ-175 Barrels

The HZ-175 Centrifugal Barrel Finisher features four 48” wide by 8’’ diameter barrels.

The lids are not removed during operation on the HZ-175 machine. Each barrel has 5 hinges with springs along the back side of the cover to aid in opening the lid. The operator simply unlatches the front locking mechanisms and lifts the lid to open each barrel. The barrel lid will remain open while the operator loads or unloads the machine.

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.

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HZ-175 Recommended Accessories

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

Drain Pan

Collects water and drainage during the loading/unloading process
Grip strut floor surface to prevent operator slips and falls

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 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-175 Specs & Resources

HZ-175 Machine Specs
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	6 cubic feet
Approximate Shipping Weight	7000 lbs.
Drive	Variable Frequency
Overall Dimensions	102″ L x 57″ W x 85″ H (Machine)
Machine Construction	Heavy-duty steel All welded construction Reinforced, gusseted, and welded to maximum strength
Paint	Heavy-duty powder coat Scratch resistant
Barrel Construction	48” L x 8″ W Four hexagonal barrels with hinged lids Locks for secure operation
Barrel Liners	Hot poured polyurethane 1/2” thick Field replaceable 20 Divider slots, 21 individual chambers possible

Control Panel	NEMA 12 enclosed panel UL Certification Available Standard push buttons and switches PLC Option Available 0-100 Hour cycle timer mounted on panel Power jog of turret
Brake	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
Automatic Door Opener	Makes opening main access door easier Eliminates need for lifting on operator

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	134.5” L X 96” 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
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
Custom Logo/Paint	Paint matched to customer color scheme requirements Sticker Logo provided by MFI or Client
Centrifuge Module – CF-55	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
Media/Compound	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 up to 12 MFI gray media bins

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