This Week's Lab News; Featured Lab Products; Lab Questions | Labwrench eNews | LabWrench

March 02, 2015

Product Resources

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

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/ grinder is usually used.

  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 miller 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?

Click here to read more about choosing the proper pipette.

Product of Interest


BenchPro Kennedy Series with Stainless Steel Top

18-Gauge grade 304 stainless steel top with a number 4 brushed finish. Over solid particleboard for strength

  • Ergonomic Comfort and Productivity.
  • America's Strongest Bench.
  • America's Highest Quality Bench.
  • America's Longest Warranty.
  • America's Easiest Assembly.
  • ANSI/BIFMA Certified.
  • Save Over 60% On Shipping With This Model.
  • 18 Gauge Stainless Steel Reinforced with 1- 1/8" Solid Particle Board for Strength.
  • The Stainless Steel is Grade 304 with a Brushed Finish.

Visit the BenchPro website the learn more about the Kennedy Series

UDY Corporation Mills

The world famous Cyclone Sample Mill
is used for lab sample preparation. This powerful mill grinds samples to the consistency necessary for accurate test results. Many models and accessories to meet your lab needs. Call today.

  • The finest mill ever built
  • Thousands in use world wide
  • Over fifty years of reliable service
Also from UDY Corporation

Protein Testing Systems
Hay and Forage samplers
Shaker Devices
Milk Protein Analyzer

UDY Corporation has the expertise to assist you with all of your project needs and a complete fabrication shop is at your service.


Read more about UDY Mills by visiting their website.

Help your Colleagues

Plenty of discussions are happening on LabWrench all the time. We have many questions come in daily from users that are seeking advice from fellow users and lab professionals on LabWrench. Can you help any of these users find the answers they are looking for?

PerkinElmer Clarus 580 GC - Helium shutdown
We had a pressure drop in helium supply and this led to instrument shutdown. After restarting how can I establish helium, because it gives message like this "He flow shut down"? Advise this member.

Bruker Corporation 400-GC Series - Software integration
I am unable to do integration via Galaxie software. Can anybody help? Advise this member.

Stovall Life Science Inc. Hi/Lo Profile Rocker
Can I use this rocker inside of a CO2 incubator? Advise this member.

Click here to view all Questions and Discussions on LabWrench.

Have a Question ??

Have a Question?

Company News Hot Off The Press

Berthold Technologies introduces Biametrics GmbH as a New Co-operation Partner
Berthold Technologies proudly announces the recently established co-operation with their new partner Biametrics GmbH. A spin-off of Tübingen University, Biametrics develops novel solutions for label-free analysis of bio-interactions. The 1l-Reflectometric Interference Detection (1l-RIDe) is the missing link between conventional µArray approaches and currently available label-free techniques. Read more.

Compact Diaphragm Liquid Metering Pump for Aggressive and Corrosive Liquids
KNF Neuberger, Inc. announces the launch of its enhanced SIMDOS® 10 line of diaphragm liquid metering pumps. Available with four head material options, the line affords laboratory personnel with simple operation, thanks to a user-friendly display and adjustable transfer parameters from a touch-control knob. Read more.

Shimadzu Corporation Launches Nexera UC - The World’s Foremost Unified Chromatography System
The fully automated supercritical fluidic chromatography-based Nexera Unified Chromatography system (Nexera UC) can sequentially analyze up to 48 samples utilizing automatic extraction and chromatographic separation combined with high-sensitivity detection of targets by mass spectrometry. Read more.

 Click here to view all news articles on LabWrench.

Sponsor of the Week

Thank you to Coy Laboratory Products for sponsoring our Glove Boxes category on LabWrench
For more than 30 years Coy Labs has produced Glove Boxes, Anaerobic Chambers, and controlled atmosphere glove boxes designed to fit people's needs. Coy glove boxes and chambers can be found in every corner of the world, and nowhere else for the price and convenience can you find the flexibility of design, ease of operation, and reliability of performance. Coy glove boxes and chambers come equipped with all the necessary accessories for 12 specific applications.

Visit the Coy Laboratory website to view their full line of products.

Upcoming Free Webinar


FREE Webinar:
Mobile Technology for Your Lab

Thursday March 19, 2015
12:00 - 1:30 PM EST

 Register Now!


Questions from the Vault

We have so many questions filling our forums that sometimes questions can be missed and go without answers. Can you help us provide answers for these users with unanswered questions?

PerkinElmer LAMBDA 2 - Error
Our Perkin Elmer Lambda 2 UV-Vis spectrometer is giving an error message upon power up: "Checksum Error" and that there is no energy reference. Has anyone with this instrument come across this and have a way to address it? Instrument is not giving sensible readings. Advise this member.

Advanced Instruments Advanced® Model 3300 - Calibrations
Has anyone had a problem with calibrations not being in range on the osmometer Model 3320? Advise this member.

Roche Cobas 600 - Grabber error or ghost cartridge
Has anyone experienced this error and how was it resolved? Advise this member.

Click here to view all Questions and Discussions on LabWrench.




Follow LabWrench on Twitter

Follow LabWrench on Facebook

Follow LabWrench on LinkedIn



Links to CATEGORY PAGES on LabWrench

Atomic Absorption
Clinical Chemistry Analyzers
Evaporators Concentrators
Fume Hoods
GC Systems
Hematology Analyzers
HPLC Systems
Microplate Readers
PCR Thermal Cyclers
UV / VIS Spectrophotometers


For editorial and sales inquiries contact us:
c/o LabX Media Group Inc.
PO Box 216, 476 Bay Street,
Midland, Ontario, Canada   L4R 1K9
Ph: 888-781-0328 |