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Perry of Oakley Ltd

Grain Sampling

Why choose a grain sampler?

You buy/sell grain, so you want to know the value and quality of your batches (eg ISO standards, NF V036-777). To this end you need to sample and to analyse the batches you receive or ship. 

Sampling standards respond to the specifications of European and international sales contracts. To assess the conformity of a batch it is essential for the analysis to be carried out on a sample which is representative of the overall batch being examined; this explains the importance of the number of sample pick-ups (sub-samples) and the area covered by the sampling probe. (cf. ISO standard EN NF 24333 (2010-02))

TPLG's grain samplers are there to help you accomplish this task and improve your results. Any analysis or interpretation of its results are vain if the sample itself is not representative of the batch from which it originates. 

Perry of Oakley Ltd are now the UK and Ireland exclusive  dealers for Tout Pour Le Grain (TPLG) and their range of grain sampling equipment. 

TPLG are a family owned and run French business, they are product and support focused and have been established since 1977. 

For more information please contact us on +44 (0)1404 890300 or email us at

Case Study - Union Grain Ltd


Full Product List


HERON 3000/4000 Range

Click here for more information about the HERON range






COBRA grain sampling

Click here for more information about the COBRA Range






SARA Grain Sampling

Click here for more information about the S.A.R.A range






CAMELEON grain sampling

Click here for more information about the CAMELEON range (Tankers)







Major aspects of the sampling operation

  • Sample intake: - Choose from several sample designs to meet your specific needs*
  • Homogenization: - Several types of receiver stations to accommodate your needs (cyclone with blending auger etc)*
  • Size reduction: - Different tools are available to suit different needs (sample dividers etc)* 
  • 2 modes of sample constitution: - direct vacuum intake through mono-tube probes or core sampling through twin walled probe with vacuum grain transport.

*Please see full product list for full details

Whatever the means you choose, the accuracy of the sampling operation increases with the number of sub-samples taken throughout the grain load. (cf. ISO standard on static sampling (NF EN ISO standard 24333 (2010-0))

ISO standards on static samples

  • Up to 15 Tonnes: 5x sub-samples
  • 15 to 30 Tonnes: 8x sub-samples 
  • 30 to 50 Tonnes: 11x sub-samples (minimum)

 General information

Taking grain samples should only be carried out by trained personnel to make optimal use of the TPLG sampling machines (automations, positioning of the probes etc) and someone who is aware of the importance of the process (number of sub-samples, determining the sampling pattern).

The future is definitely geared towards consistency to provide a more representative sample batches of grain or bulk material. 

TPLG & Perry can support you in moving forward and staying up to date with the latest in sampling technology. COBRA is one of the solutions that meets the specifications of the international standards in bulk sampling. The COBRA is the only sampler that can cover the entire area of a truck or trailer and it carries it out quickly and efficiently.

We also provide various kinds of receiver stations including cyclones with blending augers and sample dividers. 

SARA offers an integral automated solution (massively reducing the risk of human error and saving time). It has been designed to automatically distribute the incoming samples to different analysers, bagging machines, containers, recirculation of the residue sample or return to vehicle. 

Sample recirculation is an operation that should not be ignored or neglected. Although the option may be a non-negligible investment at first, it will soon pay off. You will no longer waste the excess sample material, nor will you have to monopolize man power for laborious and costly handling operation. 

For more information please contact us on +44 (0)1404 890300 or email us at