Key Questions to Ask When Ordering Powder Grinding Machine Mill

18, Aug. 2025

 

Frequently Asked Questions about Powder Milling and Sizing ...

As well as our own IDEX-affiliated regional offices, we are supported by a network of Agents & Distributors, who enable us to provide quality customer service anywhere in the world.

Jiangyin Chenyuan Machinery supply professional and honest service.

With customers in more than 80 countries, we have both the ability and competency with which to provide whatever level of support may be required.

Process / Application Testing

Quadro® has an extensive database linking to our equipment capabilities with various processes and applications, across a broad range of industries.

Our industry-leading global test facility is located at our Head Office in Waterloo, Canada, and features a full range of the latest lab equipment, a product preparation area and a state-of-the-art analysis area. Testing is also available at our facilities in India and China.

Our knowledge, expertise and facilities are available to evaluate all potential applications.

In addition, our rental fleet enables customers to test their application prior to purchase, thereby ensuring the suitability of our equipment for specific process requirements.

Site Acceptance Testing / Start-up Assistance

We offer full on-site start-up assistance for both purchased and rental machines to enable you to get your Quadro® equipment up and running. This service includes machine set-up, standard IQ/OQ (Installation Qualification/Operational Qualification) Performance Qualifications and Site Acceptance Testing, all of which aid in the validation of your process.

Technical Training

Focused, professional training programs are  available either at our facility or yours for engineers, technologists, operators and maintenance personnel. Training is comprehensive, covering everything from basic equipment operation and best practice to more advanced programs relating to equipment theory, optimization and troubleshooting.

The Overdriven Comil is the simplest and most economical Comil to maintain and operate.

Available in four models, the Overdriven Comil has the widest capacity range - up to 120,000 lb/hr (54,500 kg/hr). And with the largest number of screen and impeller options available in the market and many specialized tools, almost any process requirements can be achieved.

The Underdriven Comil has a smaller footprint, inline design and extremely short head height, easily integrating into processing environments where space is limited. A large diameter infeed and 'straight through' housing promote unhindered inline product flow for quicker discharge.

With four models to choose from, the Underdriven Comil is scalable in capacity from several ounces to 35,000 lb/hr (15,900 kg/hr). The innovative spacer less design allows for quick changeover of impellers and screens.

At Quadro® we have a wide range of mill sizes and configurations, from Lab scale to full-size high-capacity machines, inclusive of several Overdriven and Underdriven design models.

Equipment selection will be dependent upon your application and material properties (particle size, moisture content, temperature sensitivity, hardness and other physical and chemical properties). A full evaluation of your requirements will be carried out before recommending the equipment and process that most efficiently and effectively achieves your specific size-reduction requirements. With a large choice of screens and impellers available, we will have the right solution for you.

The Overdriven Comil has the widest capacity range - up to 120,000 lb/hr (54,500 kg/hr) whilst the Underdriven Comil is scalable in capacity from several ounces to 35,000 lb/hr (15,900 kg/hr).

For more information, please visit Powder Grinding Machine Mill.

Achieving the target particle size at a tight particle size distribution is vital in producing a quality product no matter what industry you are operating in.

Cone Milling (or conical milling), and Hammer Milling are widely used milling methods in the industry. Selecting which milling process to use ultimately depends on the target particle size trying to be achieved.

However, it is not just about the mill, but also the screen type and impeller that are selected too. We help our customers with their options by sharing our ‘Particle Size Card’- this sizing chart ties the target particle size to the mill type and the size of round or grater hole screen required in partnership.

For each type of particle or powder, we also evaluate if any special coatings are needed, and of course look at the RPM and tip speed, to mill your product and achieve the exact PSD you require.

We have a wide range of screens and impellers available with screen openings ranging between 0.150mm (0.006”) and 38mm (1.5”). Screen types include round and square perforations, wire mesh, and grater (or Conidur) options.

There are dozens of profiled impellers designed to suit specific requirements including basic versions with round, square or beveled arms, as well as more aggressive profiles. Impellers can be further customized with special add-ons and/or finishes.

We will help you navigate through the choices of screens/impellers and after reviewing your mill feeding method, e.g. a pneumatic conveying system, we will match your product with the precise RPM and tip speed necessary to achieve consistent and scalable PSD results.

Once this set of parameters is established, you will not only be able to accurately achieve the PSD you need, you will also be able to quickly scale up from lab-sized equipment to full capacity production utilizing those exact same operating parameters.

When precision grinding is paramount to your milling process, the Quadro® F10 Fine Grind Model or H20 High Energy Comil® represent a perfect alternative.

With the capability to deliver D90 targets in the 20 – 60 µm range, Quadro’s results provide the highest percentage within target of any fine mill technology and come as a complete station, eliminating the need for auxiliary equipment. These machines give you the capability to control PSDs with an integrated variable-frequency drive for responsive milling speed/torque adjustments, thus ensuring enhanced on-target PSD results.

The Quadro® F10 Fine Grind Model offers unparalleled portability and process flexibility and benefits from low heat production, reduced noise output and low power/air consumption.

The Quadro® H20 High-Energy Comil® achieves PSDs that are 30-70% finer than those achieved by competing conical mills.

Our experienced team will help you with your tooling selection i.e. screen and impeller, and review your mill feeding method, which is key, particularly for the H20 High-Energy Comil®. We will match your product with the precise RPM and impeller tip speed to enable you to achieve consistent and scalable PSD results.

Do You Need a Mill or Grinder In Your Lab?

Do You Need a Mill or Grinder In Your Lab?

Find out which types of mills and grinders are most popular among respondents, and more

In a laboratory, most materials required for sampling are, in practice, nonhomogeneous mixtures. The best method of obtaining a small representative sample of the nonuniform whole is to take a quantity of the material large enough to be compositionally representative and reduce it to a fine homogeneous powder. For this purpose, a laboratory mill or grinder is usually used.

If you want to learn more, please visit our website Mixer Machine Exporter.

Top 5 Questions You Should Ask When Buying a Mill or Grinder

  1. Will the mill/grinder be used for wet or dry milling?
  2. For dry milling, ask how finely the material needs to be ground and what are the properties of the material? Rotor beater, disc, and mortar mills, for example, are best for mid-range grinding (final fineness of ~0.01-0.1 mm).
  3. For wet milling, ask what capacity of grinder you will need. Bead mills are usually best for small capacity applications while rotor-stator homogenizers should be considered for larger scale applications. For very large scale applications, industrial-scale mills are probably the best fit.
  4. How important is preventing cross contamination? Bead mills are likely a good choice if you don’t want any risk of contamination.
  5. Based on the materials you will be milling, how long does the mill or grinder typically last? How much do replacement parts cost and how easy are they to get? What level of support/warranties does the company offer?

Types of laboratory mills or grinders used by survey respondents:

Ball mill34%Grinding mill32%Jaw Crusher19%Mortar grinder18%Rotor Mill14%Cutting Mill12%Knife mill11%Mixer Mill7%CryoMill4%Disc Mill4%Other23%

Primary purpose of lab mill or grinder as reported by survey respondents:

Research42%Processing26%Quality control19%Clinical and diagnostic2%Other11%

Nearly 48% of respondents are engaged in purchasing a new laboratory mill or grinder. The reasons for these purchases are as follows:

Replacement of an aging system46%Addition to existing systems, increase capacity22%First time purchase16%Setting up a new lab4%Other12%

Top 10 Features/Factors Respondents Look for When Purchasing a Laboratory Mill or Grinder:

Durability of product84%Low maintenance — easy to use and clean72%Value for price paid 63%Results with minimum deviation60%Safety features49%Reliability of vendor48%Service and support45%Warranty40%Reputation of vendor40%Recommendation from colleagues/peers35%

For more information on mills and grinders, including useful articles and a list of manufacturers, visit www.labmanager.com/mills-and-grinders