CD centrifugal disc finishing machines provide a cost-effective solution for small-batch processing of small parts. As an economical model in this category, they feature manual discharge, reducing overall equipment cost while delivering reliable finishing performance.
Inovatec Machinery · Vibratory Finishing
Inovatec’s Centrifugal Disk Finishing Machines give smooth surface finishes, fast deburring, and reliable results for every batch. Below is real performance data and before-and-after comparisons from our industrial customers.
Before AfterProcess Specs
Parts Material | Processing time (min) | Media Type | Media Wear Rate | Ra before | Ra after | Material Removal | Consistency | |
Rubber rings | 60 minutes | GC ceramic media ACT 20X20mm (3/4 inch) | 0.5% per hour | 1.0 | 0.25 | < 0.2% | ±1% Surface Uniformity |
Consistent Results: The centrifugal disk finishing machine delivers uniform surface finish quality from batch to batch, ensuring stable and reliable results in mass production.
Low Damage Rate: With controlled high-energy rotation and proper media selection, the centrifugal disk finishing machine reduces part-to-part impact and helps protect small or delicate components.
High Repeatability: Digital controls and simple program settings help the centrifugal disk finishing machine maintain cycle-to-cycle consistency, typically within ±1% under the same process conditions.
Real Industrial Testing: The centrifugal disk finishing machine is validated by 1,000+ finishing tests across different metals, geometries, and part sizes.
Process Tracking: Each centrifugal disk finishing machine can record key data such as cycle time, media type, and process parameters for easier quality control and repeatable production.
Detailed specifications for our CD series Centrifugal disk finishing machine. Compare models and download comprehensive technical documentation.
| Model | Capacity | Size | Motor | Weight | Speed | Chamber Diameter | PU thickness |
| (L) | LxWxH(mm) | (KW) | (kg) | (rpm) | (mm) | (mm) | |
| CD50A | 50 | 1390x700x1240 | 1.5 | 400 | 50-180 | 460 | 22 |
| CD50 | 50 | 1000x660x1120 | 1.5 | 300 | 50-180 | 460 | 22 |
| CD120 | 120 | 1740x900x1470 | 4 | 600 | 50-160 | 640 | 26 |
The CD series centrifugal disc finishing machine generates finishing action through a rotating disc at the bottom of a fixed bowl — the disc accelerates parts and media outward and upward, creating a controlled sliding action against the bowl wall that is up to 10× faster than vibratory finishing. The three design elements below explain the practical result.
The disc at the bowl bottom rotates at 50–180 rpm, accelerating parts and media outward by centrifugal force. The mass rises up the bowl wall, slows at the top, then flows back to the centre — creating a continuous, high-energy sliding contact between parts and media. This contact force is significantly higher than vibratory bowl action at the same bowl volume. A process requiring 2 hours in a vibratory machine typically completes in 10–20 minutes in a CD centrifugal disc machine. Speed is adjustable across the full range for each application.
The CD series uses manual discharge: at end of cycle, the operator opens the bowl gate and the contents discharge onto a hand screen or vibratory separator. This makes the CD series the most cost-effective centrifugal disc option for small batch operations where manual handling time is not a production constraint. The 50 L, 80 L and 120 L models are the most commonly purchased sizes. For higher volume or automated discharge, the automatic CDA/CD120Q series is the next step.
The bowl is fully PU-lined. In wet finishing mode, the water level in the bowl significantly affects the finish result: higher water level reduces media impact energy and produces a finer, smoother finish; lower water level increases impact energy for more aggressive deburring. The operator adjusts the water inlet valve to set the level for the specific application. Compound is added via a dosing pump (optional) or manually.
The CD series is the manual-discharge centrifugal disc finishing machine — at end of cycle, the operator opens the discharge gate and the contents (parts and media together) exit onto a hand screen or vibratory separator. This is the most cost-effective entry point into centrifugal disc finishing, suited to small batch operations where the slightly higher manual handling time is offset by the lower machine cost.
The centrifugal disc mechanism delivers up to 10× faster finishing than vibratory bowl machines at the same bowl volume, making even the manual-discharge CD series a significant upgrade in cycle time from vibratory finishing. At 50 L, 80 L and 120 L — the three most common sizes — the machine fits in a small workshop footprint and requires no automation infrastructure.
CD centrifugal disc finishing machines offer a cost-effective solution for small-batch processing of smaller parts. Their high-energy disc finishing technology can deliver up to 10× faster cycle times than standard vibratory bowl finishers. With short processing times and a high level of automation, they provide an efficient, consistent finishing process with excellent productivity.
At INOVATEC, 50L, 80L, and 120L are the most popular size centrifugal disc finisher. Depending on spinner speed (50-180 RPM) and the water level, centrifugal disc finishing equipment can accomplish work from aggressive deburring to luster polishing.
Machine: CD120 centrifugal disc finishing machine
Application: Deburring washer parts
Mode: Wet finishing
Processing time: 1 hour
| Item | Spec |
|---|---|
| Parts | Washer parts – 30 kg |
| Media | Ceramic media 6×6 (ACT) – 75 kg |
| Compound | LC-13 – 0.5 kg |
| Water | 10 kg |
This recipe is designed for fast burr removal + edge breaking in a single wet cycle.
Results depend on washer thickness, burr size, and required edge radius; we recommend a small trial run to fine-tune time and compound concentration.
Feature:
Applications:
Watch our Surface finishing process in action. Learn more about our Surface finishing process technology.
Our mass finishing machine and tumbling media serve diverse industries with specialized finishing solutions for various materials and part types.
Engine components, transmission parts, brake systems
Turbine blades, landing gear, structural components
Fasteners, connectors, precision tools
Post-processing, surface refinement, finishing
Inovatec Machinery stands out as a trusted partner in surface finishing solutions, offering unmatched quality, innovation, and customer support.
Since 2003, we've been at the forefront of surface finishing technology, continuously innovating and improving our solutions based on real-world manufacturing 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.
With partners and service centers worldwide, we provide localized support and rapid response times regardless of your location.
We value your time. Our technical team responds to inquiries within 24 hours, ensuring you get the answers and support you need quickly.
Benefit from our expertise at no cost. We offer complimentary technical consultations to help you optimize your finishing processes and select the right equipment.
Over 500 satisfied customers across 50+ countries trust Inovatec for their surface finishing needs, with a 99% customer satisfaction rate.
Explore real applications by industry and scenario, with Before/After, sub‑categories and resources to help you quickly find what you need.
Jewelry | Precious Metals | Jewelry Polishing
Precision polishing, deburring and mirror finishing for gold, silver, copper and titanium jewelry—balancing premium surface quality with throughput.
Burrs on edges, surface scratches and oxidation spots reduce luster and wearing comfort.
Noticeably improved mirror gloss with rounded edges and better wearing comfort.
Additive Manufacturing | SLA/SLS/FDM
Removes layer lines, densifies surfaces and unifies appearance for 3D‑printed parts across materials and processes.
Pronounced layer lines, support marks and rough surface affect assembly and appearance.
Smooth, refined surface ready for painting/electroplating; presentation‑grade look.
Sheet Metal | Laser Cutting | Edge Optimization
Removes dross/burrs and adds edge radiusing on laser‑cut parts to improve safety and assembly quality.
Sharp, burred edges can cause cuts and hinder coating adhesion.
Consistent rounded edges and clean surfaces for better paint/e‑coat adhesion.
Consumer Electronics | Small Appliances | Exterior Parts
Delivers consistent texture and feel for high‑volume consumer products, improving brand perception and yields.
Uneven brushing, micro‑burrs and harsh feel affect assembly and user experience.
Uniform texture, smooth edges and refined touch; markedly better consistency.
Stone | Gemstone | Tumbling
Rounds edges and enhances gloss on natural/synthetic stones for jewelry and decorative crafts.
Sharp edges, rough surfaces and uneven color/reflection.
Rounded edges and even polish; improved visual appeal.
Automotive | Engine/Drivetrain | High‑volume Consistency
Deburring, edge radiusing and surface consistency for automotive parts to meet stringent standards.
Tool marks and residual burrs with sharp edges reduce fatigue strength and hinder assembly.
Stable edge radii and compliant roughness with high repeatability.
Defense | High Reliability | Process Consistency
High‑reliability, consistent surface finishing across metals and composites.
Sharp edges, stress concentrations and surface defects impact durability and safety.
Consistent chamfers and stable surface quality; coating/assembly‑ready.
Aluminum Profiles | Die‑cast Parts | High‑volume Finishing
Efficient, consistent finishing for aluminum parts; ideal for pre‑anodizing treatment and brushed/polished appearance.
Gate/flash marks and dull surfaces; notable batch variation.
Flash removed with refined texture and higher brightness; improved batch consistency.
Engineering Plastics | Injection‑molded Parts | Deflashing
Removes plastic flash and smooths edges to prevent scratching and improve assembly.
Visible flash and sharp edges affect feel and assembly.
Flash removed and corners smoothed; improved look and feel.
Enhance your mass finishing machine and tumbling media with our professional-grade accessories. Increase efficiency, reduce noise, and optimize your finishing process.
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.
Accessories designed to maximize machine efficiency and output quality
Reduce operational costs through improved efficiency and reduced waste
All accessories designed for seamless integration with your existing machine
Inovatec Machinery is committed to the highest standards of quality, safety, and reliability.
Quality Management System certified by international standards, ensuring consistent product quality.
European Conformity marking ensuring our machines meet EU safety standards.
Comprehensive testing and inspection reports from SGS.
Environmental protection standards compliance.
Since 2003, Inovatec Machinery has been at the forefront of surface finishing technology innovation.
Our machines are trusted by manufacturers worldwide and recognized at major industry exhibitions.
Regular participation in major industry exhibitions worldwide.
Strategic partnerships across major manufacturing regions.
Find answers to common questions about our products.
A Centrifugal Disc Finishing Machine is a high-energy mass finishing system used for deburring, descaling, polishing, and surface smoothing of small to medium-sized metal and plastic parts. It features a stationary processing bowl with a rotating spinner (disc) at the bottom. As the disc turns, parts and media are accelerated by centrifugal force and driven upward and outward in a controlled flow pattern, creating intense sliding and scrubbing action. This high-contact motion delivers fast, uniform material removal and consistent surface improvement, making the process highly efficient for precision finishing applications.
Reference only: Actual time depends on burr size, part geometry, surface requirement, media size, and load ratio. We recommend a small trial to confirm the best recipe.
| Process stage | Goal | Recommended media | Typical cycle time |
|---|---|---|---|
| Deburring | Remove burrs / edge break | Ceramic media | 2 hours |
| Pre-polish | Surface smoothing / prep for shine | Plastic media | 2 hours |
| Polish | Bright finish / final shine | Porcelain media | 1 hour |
Faster processing: typically 3–10× shorter cycle times, depending on the media and part geometry
High-energy action: strong finishing force for aggressive deburring or rapid polishing
Compact footprint: space-saving design for efficient shop layouts
Optimized for small/precision parts: excellent control for tight-tolerance components
Lower media wear (in some applications): smoother, controlled flow can reduce abrasion and extend media life
Choosing the right media depends on the part material and geometry, the required surface finish (roughness or gloss), and your process objective (deburring vs. polishing).
Common media options include:
Ceramic media for effective deburring and descaling
Plastic media for smoother finishing, especially on softer metals
Dry organic media (e.g., walnut shell) for gentle polishing and drying
Stainless steel media for high-luster burnishing
For best results, we recommend testing on sample parts to confirm the finish, cycle time, and dimensional impact before running large production batches.
To ensure long-term reliability:
Inspect the polyurethane (PU) lining regularly for wear, cuts, or cracks.
Check spinner/disc bearings and seals for abnormal vibration, noise, heat, or leakage.
Clean the bowl and drain system to prevent media/compound buildup and blockage.
Lubricate the motor and gearbox according to the manufacturer’s maintenance schedule.
Monitor the control panel and wiring routinely to ensure stable operation and safe electrical connections.
Choose CD manual discharge when: your batch volume per shift is moderate; the extra 5–10 minutes of manual discharge per cycle is not a production constraint; capital cost is the primary decision factor; your parts are robust enough for manual separation on a hand screen.
Choose the automatic CDA (CD120Q or CD230) when: you run multiple batches per shift and labour time adds up significantly; you want automated separation integrated into the cycle; your production volume justifies the higher capital cost; you are building a more automated production line.
Process parameters, media types and achievable surface finish are identical between the CD and CDA series — the only difference is how parts and media are separated at the end of the cycle.
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6317 Arcadia St, Eastvale, CA 92880 USA (323-577-3309)
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