Dry rotary samplers

Ensure sampling accuracy with our dry bulk rotary samplers

Our dry bulk rotary samplers are designed to minimise maintenance while delivering reliable, accurate results from falling streams of ore. Hard wearing and self-contained, with easily replaceable cutters, they are built to operate to global sampling guidelines.

Key benefits of our dry rotary samplers

  • Reliable sampling results

    To make confident process optimisation and quality control decisions, you need precise, dependable ore samples. Our dry bulk rotary samplers are designed to provide just that: highly accurate, proportional samples that empower optimum performance in mining and mineral processing operations.

  • Robust and long-lasting

    Offering low-maintenance sampling solutions for your operations, our dry bulk rotary samplers are made with high-grade steel to ensure a long wear life and come with easily replaceable cutters. Large side access doors allow for simple maintenance and quick replacement of cutter blades in the field.

  • Accessible but safe

    Inspecting and accessing the cutters and liners is safe and straightforward. Hatches on the top and side are equipped with safety mesh, ensuring operators can observe the operating unit in safety, without direct exposure to moving parts. Additionally, the drive is designed to bring the cutter to rest outside the falling stream for easier inspection.

Our dry rotary samplers

Essa® Vezin Samplers (VS)

Essa® Vezin rotary samplers for primary, secondary, and tertiary sampling applications feature a square design for easy installation and to allow flat wear liners. The enclosed unit has a rotating cutter that moves at a constant speed through the falling sample stream. Designed for minimal maintenance, they offer options like internal rubber lining and automatic washdown.

  • Up to four cutters ensure the required sample amount is collected
  • Replaceable cutter lips of Ni-Hard steel
  • Fixed-speed, three-phase electric motor and gearbox 

Maintenance & service of our dry rotary samplers

We have been supplying dry bulk sampling systems to the mining industry for decades. When you choose FLS to supply your sampling system, you don’t just get a sampler; you get access to those decades of sampling experience. This allows us to offer unparalleled support, from initial sampler design, selection, and installation to maintenance, spare parts, troubleshooting, and optimisation—all backed by our time-tested sampling knowledge and real-world expertise.

Learn more about our FLS service centres

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Frequently asked questions

FAQs for dry rotary samplers

A dry bulk rotary sampler works by rotating a cutter through a falling stream of material, capturing a proportional sample for analysis.

Dry bulk rotary samplers are used to collect representative samples of dry, free-flowing bulk materials, such as ores, granules, powder, and pellets, from a falling stream.

Selection of a dry bulk rotary sampler depends on several factors to ensure you get accurate and reliable samples, including the characteristics of the material to be sampled, the sampling environment, sampling frequency and size, maintenance requirements, and capital and operating costs.