+44 (0)1692 403403 info@tekpro.com
Holmen Logo

Pellet Durability Testers –

Manufactured by TEKPRO

“Durability testing is a great tool for a quality manager, and it’s able to provide a useful estimation of the percentage of pellets that will be delivered to the animal.”

“Using the Holmen Tester, you get a beautiful picture of the durability. In other words, how good is the pellet resistant to handling”.

Eric Vissers, Process technologist at Feed Design Lab.

In-Line Process Control

Holmen NHP300 Inline

NHP300

Designed for use in highly productive mills, the Holmen NHP300 will take pellet samples automatically from the production line.

Semi-Automatic

Holmen NHP200 Pellet Durability Tester

NHP200

The Holmen NHP200 is a semi automated pellet durability tester, designed for use with both feed and wood pellets.

Portable

Holmen NHP100 portable pellet durability tester

NHP100

A basic pellet durability tester designed for use in the animal feed industry, capable of providing a result faster than the Tumbling Can.

Wood

Holmen Ligno-Tester

Ligno-Tester

The Ligno-Tester is a portable durability tester adapted specifically for wood pellets.

Download your free Guide to Pellet Durability by TEKPRO

Free Download

Send download link to:

I confirm that I have read and agree to the privacy policy.

Holmen Feed and Wood Pellet Durability Testers

The Holmen range of Pellet Durability Testers offer a fast and reliable method of testing PDI or Mechanical Durability. From feed pellets to wood pellets, either manual or automatic testing. Holmen provides the solution whatever the size of your mill!

The basic NHP100 is a popular machine for small companies, but quality focused feed mills typically prefer the NHP200. This is due to its ease of use and provides the repeatable accuracy of the test process.

For larger companies who manufacture pellets in bulk, we can also provide the Holmen NHP300, together with inline samplers to test directly after the press, before too much product has been produced. This can help reduce the need for rework, and optimise production efficiency.

Holmen logo

 NHP300

Inline Pellet

Durability Tester

  • Made in Britain by TEKPRO
  • Suitable for animal feed & wood pellets between 3mm and 12mm.
  • Fully automatic sample testing, perfect for quality conscious busy mill environments .
  • Takes samples directly from the production line during the manufacturing stage.
  • Operated by Windows software (provided), or can be paired with mill management software.
  • Reproducible accuracy of  ± 0.1%
  • Helps to eliminate waste, maintain quality, and reduce cost.
  • Fast-growing user base worldwide.
  • 3PH 400V, Earth and Neutral model only

Holmen NHP300 Information Sheet

Download more FREE Info

Email my download link to:

I confirm that I have read and agree to the privacy policy.

The Holmen NHP300 Pellet Durability Tester is ideally suited to a busy, quality focused mill.

Samples are automatically taken from the production line, the machine tests the pellets by agitating them with air at a fixed 70mBar pressure, returns them to the line, and a PDI result is provided to the NHP300 control software, or to your current mill management software without manual input from the mill operator during the test phase.

Taking a sample from the process line enables changes to be made at a point that will maximise production, reduce cost, minimise waste and maintain pellet quality.

In addition to calculating the PDI, the amount of ‘dust’ (Fines) can be also be calculated.
Up to four pellet lines can be tested by one NHP300 with the option to return samples back to their original lines too.

“We installed a fully automatic inline sample from TekPro, 18 months ago. I have to admit that I was sceptical that the sampler would produce accurate repeatable results. My scepticism quickly disappeared as the sampler not only proved to be very accurate, it proved to be an invaluable tool to production staff.

With a sample result available only 5 minutes after leaving the press, the press operators are getting immediate feedback which enables them to make changes when necessary and see the effects of those changes, all in a timely manner.“

Barry Liffey, Liffey Mills, Ireland

“AMBAR is the largest feed mill in the State of Israel and we chose after checking with different suppliers, to work with TEKPRO company, and to buy from them 6 systems of HOLMEN type NHP300. We use them for checking in process for checking Pellet quality On line. This gives us instant results for process control which can be adjusted during production. Which is why we decided to purchase an additional system.”

Avionosm Vizan, Technical Manager, AMBAR, Israel

Holmen logo

 NHP200

Automated Pellet

Durability Tester

Holmen NHP200 Information Sheet

Download more FREE Info

Email my download link to:

I confirm that I have read and agree to the privacy policy.

  • Made in Britain by TEKPRO
  • Suitable for Animal Feed & Wood Pellets between 3mm and 12mm
  • Semi-Automatic – less need for human input
  • Quicker than alternative methods
  • Ideal for laboratories & busy testing environments
  • Reproducible accuracy of  ± 0.1%
  • PDI results are stored and displayed on Colour LCD touch-screen, and can be printed or sent to other software by Ethernet socket
  • Daily test results can be sent by email to staff, even if working remotely
  • Digital Self Calibration built in
  • Now includes dedicated Fines Calculation feature
  • 1PH 110V-115V or 1PH 220V-240V 

The Holmen NHP200 Series 2, is our flagship pellet durability tester used worldwide for calculating the Pellet Durability Index (PDI) of feed and wood pellets by simulating the pellet transportation environment from mill to trough.

Once a sample of pellets is loaded into the machine it removes any fines, weighs the sample, tests the pellets by agitating them with air at a fixed 70mBar pressure, weighs the remaining sample and calculates the PDI.

This automatic solution removes the chance of human error, providing an accurate and reliable test method. The reduction in human input also allows other tasks to be completed while a test is done, ideal in a busy laboratory or where a wide number of staff carry out the testing.

The average test lasts only 4 minutes and the test time is automatically set according to the pellet diameter entered. Suitable for pellets 3mm-12mm diameter.

Holmen logo

 NHP100

Manual Pellet

Durability Tester

  • Made in Britain by TEKPRO
  • Suitable for Animal Feed Pellets 
  • Portable
  • Fast and Simple Operation
  • Results are obtainable 4 times faster than the Kansas State Tumbling Can
  • Adjustable Test Time
  • Fines Removed During Test
  • Different mesh hopper sizes available between 1.5mm and 4.0mm
  • 1PH 110V-115V or 1PH 220V-240V 

Holmen NHP100 Information Sheet

Download more FREE Info

Email my download link to:

I confirm that I have read and agree to the privacy policy.

The Holmen NHP100 is our entry level Pellet Durability Tester which is designed to be easily transported around different testing locations.

The NHP100 operates by loading a manually weighed sample of pellets into the test chamber, which cascades them in an air stream at 70mBar, causing the pellets to collide with each other and the perforated hard surfaces of the test chamber.

After the test cycle the pellets are manually removed and weighed to obtain a ‘Pellet Durability Index’ (PDI) reading.

Holmen logo

 Ligno-Tester

Manual Wood Pellet

Durability Tester

  • Made in Britain by TEKPRO
  • Suitable for wood pellets
  • Portable
  • Fast and simple operation
  • Simulates pellets transportation environment from mill to boiler
  • Provides the ability to calculate Mechanical Durability and Fine Material Amount

Ligno-Tester Information Sheet

Download more FREE Info

Email my download link to:

I confirm that I have read and agree to the privacy policy.

The Ligno-Tester is aimed specifically for wood pellet producers wishing to quickly cross-reference their test results against the ISO17831-1:2015 standard.

Once a sample is manually weighed and loaded into the tester, the Fine Material Amount (F) cycles lasts 30 seconds and Mechanical Durability (DU) test cycle lasts 60 seconds. Fines and dust are removed during the DU test cycle, resulting in no further sieving being required.

Fitted with 3.15mm diameter Perforated Hopper.

.

TEKPRO are proud to be a community partner and supporter of Feed Design Lab: the research & education center for innovation and sustainability of the feed industry. Feed and technology companies internationally cooperate in an open innovation network to reach a sustainable animal production chain. In order to reach this goal, a production facility has been established in which research into new raw materials takes place, where new healthy feed can be developed, where new production techniques can be tested, and where education and training activities can take place. For more information: http://www.feeddesignlab.nl/en/

Designed and exclusively manufactured by TEKPRO in the UK

The Holmen range of pellet durability testers have been developed by TEKPRO as the culmination of more than 15 years involvement within the pelleting industry. TEKPRO manufactures the Holmen range exclusively under licence from Borregaard. You can find Holmen machines in use around the globe, and their success is down to their unmatched repeatability, the speed of the test, and consistency of the results.

TekPro Client include CBH Group, Agrifirm, Quaker, and Frontier
TekPro Client include Openfield, Gleadell, Walkers, Borregaard LognoTech

For more information contact TEKPRO today by completing the form below, or email info@tekpro.com

    I have read and accept the Privacy Policy.

    Latest news