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CD Series Automatic Centrifugal Disc Polishing Machine lnovatec Machinery

The CD automatic centrifugal disc polishing machine is designed for high-volume finishing of small parts, delivering a fully automated solution for large-batch production. Its automatic discharge system streamlines part/media separation and collection, significantly reducing manual handling and labor requirements.

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Centrifugal disc finishing machine automatic unloading
Price: $9500 Stock: 10 units

Inovatec Machinery · Vibratory Finishing

Performance & Quality of Automatic Centrifugal Disc Polishing Machine

Inovatec’s Automatic Centrifugal Disc Polishing Machine delivers smooth surface finishes, rapid deburring, and consistent, repeatable results in every batch. Below, you’ll find verified performance data and before-and-after comparisons provided by our industrial customers.

Steel Parts Before and After Tumbling

Steel Parts Before and After Tumbling - Before Steel Parts Before and After Tumbling - After Before After

← Drag slider to compare before & after →

Ra 1.0 μm Ra 0.25 μm
Ra Before 1.0 μm roughness
Ra After 0.25 μm roughness

Process Specs

Parts Material Stainless steel (304)
Processing time (min) 40 minutes
Media Type GC ceramic media ACT 20X20mm (3/4 inch)
Media Wear Rate 1% per hour
Material Removal < 0.35%
Consistency ±1% Surface Uniformity

Full Process Specifications

· Steel Parts Before and After Tumbling
Parts Material
Processing time (min)
Media Type
Media Wear Rate
Ra before
Ra after
Material Removal
Consistency
Stainless steel (304)
40 minutes
GC ceramic media ACT 20X20mm (3/4 inch)
1% per hour
1.0
0.25
< 0.35%
±1% Surface Uniformity

Key Advantages in Performance & Quality

Key Advantages

  • Consistent Results: The centrifugal disc polishing machine delivers the same surface finish quality from batch to batch, ensuring stable and reliable results in mass production.

  • Low Damage Rate: With controlled high-energy disc action and correct media selection, the centrifugal disc polishing machine reduces part-to-part contact and helps protect small or delicate components.

  • High Repeatability: Digital controls and easy program settings help the centrifugal disc polishing machine maintain cycle-to-cycle consistency, typically within ±1% under identical process conditions.

  • Real Industrial Testing: The centrifugal disc polishing machine is proven by 1,000+ finishing tests on different metals, part geometries, and surface finish requirements.

  • Process Tracking: Each centrifugal disc polishing machine can record cycle time, media type, and key process parameters for easy quality control and consistent repeat orders.

Technical Specifications

Detailed specifications for our CD Series Automatic Centrifugal Disc Polishing Machine. Compare models and download comprehensive technical documentation.

ModelCapacitySizeMotorWeightSpeedChamber DiameterPU thickness
(L)LxWxH(mm)(kw)(kg)(rpm)(mm)(mm)
CD120B1201700x1380x1410411000-16064026
CD230B2302450x1700x20007.520000-14080030

Note: All specifications are subject to change without notice. For custom requirements and detailed technical drawings, please contact our engineering team.

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Key Features & Benefits

The CD120B and CD230B are the compact automatic centrifugal disc polishing machines — the same high-energy disc finishing mechanism as the larger CD120Q and CD230, but in a smaller footprint with standard (non-hydraulic) automatic discharge. The 120 L and 230 L capacities cover most small-to-medium part applications, and the automatic discharge system reduces manual handling per cycle without the full hydraulic system of the larger models.

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10–30× Faster Than Vibratory — Automatic Discharge

The CD120B (120 L, 640 mm chamber, 0–160 rpm) and CD230B (230 L, 800 mm chamber, 0–140 rpm) deliver centrifugal disc finishing at 10–30× the speed of vibratory bowl machines. Stainless steel (304) achieves Ra 1.0 μm to Ra 0.25 μm in 40 minutes with 20×20 mm ceramic media. At the end of each cycle, the automatic discharge system tilts the bowl and the contents — parts and media together — discharge onto the integrated vibratory separation sieve, which retains parts and returns media to the bowl for the next cycle. The operator does not need to manually unload the bowl.

  • 10–30× faster than vibratory bowl — Ra 1.0 to 0.25 μm in 40 minutes on stainless steel
  • Automatic discharge + vibratory separation sieve — no manual bowl unloading per cycle
  • Optional sound cover available — reduces operating noise for workshop environments
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26–30 mm PU Lining, Continuous Speed Adjustment

The CD120B uses a 26 mm PU lining; the CD230B uses 30 mm — both matched to the chamber diameter and the centrifugal forces generated at the respective operating speeds. Continuous speed adjustment via the Bosch Rexroth frequency inverter allows the operator to tune the finishing intensity from aggressive deburring (higher speed, lower water level) to fine luster polishing (lower speed, higher water level) without changing media. Forward and backward rotation is available for uniform finishing on complex part geometries.

  • 26–30 mm PU lining matched to chamber size — long service life under centrifugal loading
  • Bosch Rexroth VFD — continuous speed adjustment; forward and backward rotation available
  • Water level and speed together control finish intensity — no media change needed to switch between deburring and polishing
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Siemens or Mitsubishi PLC, Dosing Pump

The CD120B and CD230B are available with Siemens touch screen PLC or Mitsubishi PLC control — both support programmable recipes for different part types. The ProMinent dosing pump (optional) delivers controlled compound and water volume each cycle for consistent wet finishing results. The barrel rinsing system cleans the bowl interior between batches, preventing compound buildup that would affect the next cycle's process chemistry.

  • Siemens or Mitsubishi PLC — programmable recipes; operator selects program, presses start
  • Optional ProMinent dosing pump — controlled compound dosing for repeatable wet finishing
  • Barrel rinsing system — cleans bowl between batches; prevents compound cross-contamination

CD120B / CD230B Automatic Centrifugal Disc Polishing Machine — Product Overview

The CD120B and CD230B are the standard automatic centrifugal disc polishing machines — the workhorse models in the centrifugal disc range for production finishing of small to medium parts. At INOVATEC, the 120 L and 230 L capacities are the most commonly purchased centrifugal disc finishers, suited to stampings, castings, machined parts, coin blanks, eyeglass frames, belt buckles, chain links and 3D-printed parts up to approximately 150 mm in size and ≥1 mm thick.

The automatic discharge system distinguishes these from the manual-discharge CD series: at end of each cycle, the bowl tilts and the entire contents discharge onto the integrated separation sieve without operator intervention. This reduces the labour time per batch and allows a single operator to manage multiple machines simultaneously. For even higher throughput with hydraulic discharge and loading hopper, the CD120Q and CD230 are the next step up.

The CD Automatic Centrifugal Disc Polishing Machine is an ideal automated solution for high-volume finishing of small parts. Its high-energy disc finishing technology can deliver processing speeds 10–30× faster than conventional vibratory bowl finishing, while the short cycle times and high level of automation significantly reduce labor and improve throughput.

At INOVATEC, the 120L and 230L models are our most popular centrifugal disc finishers. With adjustable spinner speeds (50–180 RPM) and controllable water levels, the system can be tuned for a wide range of applications—from aggressive deburring to fine luster polishing—depending on your parts, media, and finishing requirements.

Feature:

Application:

Surface finishing process

Watch our Surface finishing process in action. Learn more about our Surface finishing process technology.

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Key Applications

Our mass finishing machine and tumbling media serve diverse industries with specialized finishing solutions for various materials and part types.

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Automotive

Engine components, transmission parts, brake systems

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Aerospace

Turbine blades, landing gear, structural components

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Hardware

Fasteners, connectors, precision tools

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3D Printing

Post-processing, surface refinement, finishing

Why Choose Inovatec mass finishing machine and tumbling media?

Inovatec Machinery stands out as a trusted partner in surface finishing solutions, offering unmatched quality, innovation, and customer support.

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20+ Years of Industry Experience

Since 2003, we've been at the forefront of surface finishing technology, continuously innovating and improving our solutions based on real-world manufacturing needs.

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Custom Solutions for Your Specific Needs

We understand that every application is unique. Our engineering team works closely with you to design and configure machines that perfectly match your requirements.

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Global Technical Support Network

With partners and service centers worldwide, we provide localized support and rapid response times regardless of your location.

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Fast Response Within 24 Hours

We value your time. Our technical team responds to inquiries within 24 hours, ensuring you get the answers and support you need quickly.

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Free Technical Consultation

Benefit from our expertise at no cost. We offer complimentary technical consultations to help you optimize your finishing processes and select the right equipment.

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Proven Track Record

Over 500 satisfied customers across 50+ countries trust Inovatec for their surface finishing needs, with a 99% customer satisfaction rate.

Application Examples

Explore real applications by industry and scenario, with Before/After, sub‑categories and resources to help you quickly find what you need.

Jewelry Polishing Machine

Jewelry | Precious Metals | Jewelry Polishing

Precision polishing, deburring and mirror finishing for gold, silver, copper and titanium jewelry—balancing premium surface quality with throughput.

Before

Burrs on edges, surface scratches and oxidation spots reduce luster and wearing comfort.

After

Noticeably improved mirror gloss with rounded edges and better wearing comfort.

Coin Gold Silver Silverware Amber Pearl Ring Watch Case

3D Print Parts Finishing

Additive Manufacturing | SLA/SLS/FDM

Removes layer lines, densifies surfaces and unifies appearance for 3D‑printed parts across materials and processes.

Before

Pronounced layer lines, support marks and rough surface affect assembly and appearance.

After

Smooth, refined surface ready for painting/electroplating; presentation‑grade look.

SLA Photopolymer SLS Nylon Parts FDM ABS/PLA Support Removal & Cleanup

Laser Cut Parts Deburring

Sheet Metal | Laser Cutting | Edge Optimization

Removes dross/burrs and adds edge radiusing on laser‑cut parts to improve safety and assembly quality.

Before

Sharp, burred edges can cause cuts and hinder coating adhesion.

After

Consistent rounded edges and clean surfaces for better paint/e‑coat adhesion.

Thin‑sheet Deburring Stainless Steel Parts Carbon Steel Parts Aluminum Edge Radiusing

Consumer Products Finishing

Consumer Electronics | Small Appliances | Exterior Parts

Delivers consistent texture and feel for high‑volume consumer products, improving brand perception and yields.

Before

Uneven brushing, micro‑burrs and harsh feel affect assembly and user experience.

After

Uniform texture, smooth edges and refined touch; markedly better consistency.

Eyeglass Frames Cutlery Blade Knife Helmet Golf Club Belt Buckle Bike Frame

Stone Tumbling Machine

Stone | Gemstone | Tumbling

Rounds edges and enhances gloss on natural/synthetic stones for jewelry and decorative crafts.

Before

Sharp edges, rough surfaces and uneven color/reflection.

After

Rounded edges and even polish; improved visual appeal.

Pebble

Automotive Parts Finishing

Automotive | Engine/Drivetrain | High‑volume Consistency

Deburring, edge radiusing and surface consistency for automotive parts to meet stringent standards.

Before

Tool marks and residual burrs with sharp edges reduce fatigue strength and hinder assembly.

After

Stable edge radii and compliant roughness with high repeatability.

Propeller Connecting Rods Camshaft Crankshaft Exhaust Pipe Piston Turbo Intake Manifold Cylinder Head Engine Block Valve Covers Valve Carburetor Gear Gear Deburring Shaft Motorcycle Parts

Military Product Finishing

Defense | High Reliability | Process Consistency

High‑reliability, consistent surface finishing across metals and composites.

Before

Sharp edges, stress concentrations and surface defects impact durability and safety.

After

Consistent chamfers and stable surface quality; coating/assembly‑ready.

Gun Barrel Brass Case Turbine Blade

Aluminum Mass Finishing

Aluminum Profiles | Die‑cast Parts | High‑volume Finishing

Efficient, consistent finishing for aluminum parts; ideal for pre‑anodizing treatment and brushed/polished appearance.

Before

Gate/flash marks and dull surfaces; notable batch variation.

After

Flash removed with refined texture and higher brightness; improved batch consistency.

Cast Aluminum Small Aluminum Parts

Plastic Deflashing Machine

Engineering Plastics | Injection‑molded Parts | Deflashing

Removes plastic flash and smooths edges to prevent scratching and improve assembly.

Before

Visible flash and sharp edges affect feel and assembly.

After

Flash removed and corners smoothed; improved look and feel.

ABS/PC Housings Nylon Parts Cleanup Thin‑walled Parts Protection

Optional Accessories

Enhance your mass finishing machine and tumbling media with our professional-grade accessories. Increase efficiency, reduce noise, and optimize your finishing process.

Siemens Touch Screen

Siemens Touch Screen

  • Siemens Touch Screen with pragrammable system
  • Button control and Touch screen available
  • Mitsubishi PLC system also available
Automatic unloading

Automatic unloading

  • Button Control or PLC controlled barrel discharge
  • For media and parts separation
  • Barrel rinsing and cleaning after processing

Complete Solution Package

Get the most out of your mass finishing machine and tumbling media with our comprehensive accessory package. Our experts will help you select the right combination of accessories for your specific application needs.

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Optimized Performance

Accessories designed to maximize machine efficiency and output quality

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Cost Savings

Reduce operational costs through improved efficiency and reduced waste

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Easy Integration

All accessories designed for seamless integration with your existing machine

Certification & Global Trust

Inovatec Machinery is committed to the highest standards of quality, safety, and reliability.

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ISO 9001:2015

Quality Management System certified by international standards, ensuring consistent product quality.

Certification Body: SGS
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CE Certification

European Conformity marking ensuring our machines meet EU safety standards.

Directive: 2006/42/EC
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SGS Test Report

Comprehensive testing and inspection reports from SGS.

Test Type: Performance & Safety
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RoHS Compliance

Environmental protection standards compliance.

Standard: 2011/65/EU

20+ Years of Excellence

Since 2003, Inovatec Machinery has been at the forefront of surface finishing technology innovation.

2003
Company Founded
2008
First International Export
2015
ISO 9001 Certification
2020
500+ Global Customers
2024
Advanced Technology
20+
Years Experience
500+
Global Customers
50+
Countries Served
99%
Satisfaction Rate

Global Presence & Industry Recognition

Our machines are trusted by manufacturers worldwide and recognized at major industry exhibitions.

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Trade Shows & Exhibitions

Regular participation in major industry exhibitions worldwide.

IMTS Chicago Hannover Messe CIMT Beijing
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Global Distribution Network

Strategic partnerships across major manufacturing regions.

North America Europe Asia Pacific

Frequently Asked Questions

Find answers to common questions about our products.

What the benefit of Centrifugal disc polishing machine?

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Compact, User-Friendly Design

Built for ease of operation and everyday industrial use, the machine features an intuitive layout and straightforward maintenance access. Clear documentation and operator guidance make setup, handling, and routine servicing simple—especially when supported by trained personnel.

Low-Noise Operation

For workshops that require a quieter environment, an optional sound cover is available to reduce operating noise. This helps minimize disturbance to operators and nearby workstations during production hours.

Process Timer Control

A built-in timer allows you to set the finishing cycle in advance, enabling consistent processing without constant supervision. The machine runs the programmed cycle automatically, improving convenience, repeatability, and overall efficiency.

What is a Centrifugal Disc Polishing Machine and how does it work?

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A centrifugal disc polishing machine is a high-energy mass finishing system used for deburring, smoothing, descaling, and polishing metal or plastic parts. It operates by rotating a disc at the bottom of the finishing bowl, creating strong centrifugal force that rapidly circulates parts and media. This intense, controlled rubbing action produces faster cycle times and higher finishing efficiency than conventional vibratory or barrel finishing machines, especially for small to medium-sized components.

What types of parts and materials can be processed?

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This machine is ideal for finishing:

  • Small to medium-sized parts

  • Non-ferrous metals (aluminum, brass, copper)

  • Stainless steel

  • Plastics and technical ceramics

  • Typical applications include jewelry, hardware, medical instruments, and 3C/consumer electronics components, among others.

Note: Fragile parts or components with sharp edges may require special fixturing and/or softer media to prevent damage and ensure consistent results.

How do I maintain and clean the machine?

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To maximize service life and maintain stable finishing performance:

  • Clean the bowl and rotating disc after each use to prevent media/compound residue buildup.

  • Inspect seals, bearings, and motor alignment regularly and address wear early to avoid downtime.

  • Monitor PU lining and disc plates and replace components when wear is visible to maintain consistent finishing quality.

  • Keep the motor and inverter well ventilated and operate within rated load to prevent overheating and premature failure.

  • If using water/compound circulation, drain and clean the recycling system periodically to remove sludge and contaminants and keep flow rates stable.

What are the advantages of a centrifugal disc machine over vibratory finishers?

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    • Up to 10× faster finishing cycles than conventional mass-finishing methods, improving throughput and productivity.

    • Excellent for precision and high-gloss finishing, delivering consistent surface quality for demanding applications.

    • Compact footprint with high output, making it a strong choice for high-volume production environments.

    • Adjustable speed (and optional direction control) enables better process tuning for different part geometries, media types, and finish targets.

    Note: Centrifugal disc machines may be less suitable for very large components or highly delicate parts, which may require gentler finishing methods or specialized fixturing/media.

What is the difference between CD120B, CD120Q and the manual CD series?

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CD manual series (CD50, CD80, CD120 manual): manual discharge — the operator opens the gate and the contents exit onto a hand screen. Lowest capital cost; suited for small batches where manual handling per cycle is acceptable.

CD120B (this page): automatic discharge — the bowl tilts at cycle end and contents discharge onto the integrated vibratory separation sieve automatically. Standard for production where labour per cycle matters. Compact footprint.

CD120Q (larger automatic): hydraulic automatic discharge, loading hopper for automated part feeding, and double-bowl configuration option (CD120Q×2). For high-volume production lines requiring the highest throughput and full automation.

All three achieve the same surface finish quality for the same part types — the selection is determined by required throughput per shift and acceptable level of manual handling per batch.

Still Have Questions?

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