Key Benefits
- Representative sampling
- Long-wearing, low maintenance design
- Faster and safer than manual methods
- Customized to suit your needs
Representative slurry sampling for the most accurate results
Based on theory of sampling principals, we manufacture our Essa® Slurry Gravity samplers to produce representative, accurate, fast, safe and reliable results, to ensure your operations run at peak efficiency.
What we offer
Skilled design allows you to sample slurries with confidence
Accurate and representative sampling is crucial for effective process and quality control. That’s why our range of slurry gravity samplers have been designed to achieve consistent, representative and reliable sampling for both online analysis and metallurgical accounting
Based on our decades of experience, we combine consulting, design, engineering and support services to develop the most reliable sampling solution for your business.
As well as being faster, safer and more cost-effective than manual sampling, our slurry gravity sampler range ensures samples are taken in accordance with best practice so you can be sure you’re getting accurate, dependable results.
We employ basic theory of sampling (TOS) principles, the rules of good, representative sampling methods as well as international industry standards.
Ballscrew and Belt Drive Linear Samplers
Our range of linear cross-cut samplers is designed for optimal, fully representative sampling, and with emphasis on robust and reliable operation in harsh environments. They are suited to process flows where a horizontal launder section feeds into a large vertical chute.
Vezin Sampler
The rotary Vezin Sampler is often used as secondary or tertiary cross-stream slurry sampler for metallurgical accounting. They suit smaller sample flows and are typically timer controlled or dependent on the operation of the preceding sampler in the system.
Moving Pipe Sampler
A self-contained sampler installed in a gravity flow, non-pressurised pipe system for both slurry and free-flowing granular solids.
Ideal for smaller diameter pipe work due to its simple flange-to-flange installation, the feed falls through the sampler which contains a fixed, geometrically accurate cutter, and a flexible pipe that moves back and forth across the cutter perpendicular to the aperture.
Slurry Arcual Sampler
An arcual type sampler for cross stream sampling of a vertical, non-pressurised pipe, falling stream of slurry.
The fully enclosed unit contains a traversing radial sample cutter that passes at uniform speed through the falling stream of slurry.
Commonly used for composite and accounting sampling, a representative sample is taken from a vertical process flow.
Key benefits
Slurry gravity samplers for metallurgical accounting and online mineral analysis
If you want reliable, representative sampling, quickly and safely, the Essa® Slurry Gravity Sampler range can be customised for your sampling needs.
If you want reliable, representative sampling, quickly and safely, the Essa® Slurry Gravity Sampler range can be customised for your sampling needs.
Durable design means less maintenance and a longer wear-life, saving you time and money.
- Ballscrew and Belt Drive Linear Samplers
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Positive and uniform drive mechanism assures maximum reliability and availability of your slurry sampling system
Able to effectively sample wide horizontal launders
Ideal for sampling high volume flows
Easily replaceable cutter blades allowing for adjustable apertures
Designed to avoid overflow and prevent splashing
- Vezin Sampler
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Specifically designed to be a minimum maintenance unit
Square design simplifies construction, installation and maintenance
Accurate sampling in accordance with recognised sampling protocols
Flexible to your needs – easily change size and number of cutters
- Moving Pipe Sampler
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Strong and long-wearing
Minimal moving parts
Inspection door and top openings for quick and easy cutter adjustment and cleaning
Easily replaced cutter blades
Pipe park is positioned outside the cutter aperture
- Slurry Arcual Sampler
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Flanged connection to process pipe providing easy access and installation
Inspection openings for cutter adjustment and cleaning
Easily replaceable cutter blades
Electric drive for constant speed control
Water wash-down for quick and easy cleaning
Rubber lined to protect and increase life-span
Proximity switches to ensure cutter parking is outside the stream
- Dual Stage Slurry Sampler
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Flanged connection to the process pipe providing easy access and installation
Inspection openings for cutter adjustment and cleaning
Easily replaceable cutter blades
Electric drive for constant speed control
Water wash-down for quick and easy cleaning
Rubber lining options to protect and increase wear-life
Proximity switches to ensure cutter parking is outside the stream
High sampling frequency and adjustable timer
Integrated reject stream
Minimal height
Easy to install
Easy access for cleaning and maintenance
Product features
Customise your slurry gravity sampler
Our design engineers will evaluate your material type, pipe routing, slurry flow, and sampler location to suggest the very best slurry gravity sampler for your needs.
Our design engineers will evaluate your material type, pipe routing, slurry flow, and sampler location to suggest the very best slurry gravity sampler for your needs.
- Ballscrew and Belt Drive Linear Samplers
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Simple but robust low maintenance belt-drive or ballscrew drive mechanism
Precise speed control even under extreme loads – satisfies sampling theory of constant speed requirement
Cutter carriage assembly designed to roll freely on bearings and wheels
Integrated lifting eyes
Large hinged inspection doors that allow viewing of the machine in operation
Hinged safety access screens that allow easy adjustment of control devices
- Vezin Sampler
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Angular bottom plates preventing sample material build-up
The cutter and liners are readily replaceable in the field
Radial (wedge-shaped) cutter opening cross section as is required for rotary style samplers
Convenient access/inspection panels
Optional internal rubber lining
Optional automatic internal wash-down
Proximity switches to ensure cutter parking is out of the stream
- Moving Pipe Sampler
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Can be used as a stand-alone primary sampler or as a downstream splitter in a secondary, tertiary or quaternary staged sampling system
Electric braked gearmotor moves the flexible pipe at uniform velocity
Change the pipe velocity, cut frequency and cutter aperture to suit your sampling system
Reversible stainless-steel cutter blades to double their wear-life
Two sizes of cutter blades to allow cutter apertures to be set between 10 and 50 mm
Flanges allow easy connection to existing pipework
- Slurry Arcual Sampler
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Developed using correct cutter geometry design with radial cutter edges to accurately cut a fixed portion of the stream
Cutter is directly driven by a fixed speed three phase electric motor and gearbox combination
Cutter spoon is designed to ensure the required amount of representative sample is collected
The drive is designed so that the cutter always rests outside the slurry stream by using inductive proximity sensors to control the parking
Constructed from wear-resistant steel with replaceable cutter lips manufactured from Ni Hard steel fitted to the cutter spoon
- Dual Stage Slurry Sampler
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The primary sampler is an arcual (radial path) cutter that traverses the falling stream at set intervals, collecting a sample from the full width of the stream
The cutter traverses the stream at constant velocity and then stops and parks well outside the stream. The travel is controlled by sensors and a PLC
Primary samples are collected in a surge box and mixed with an agitator to ensure the slurry is kept in suspension during the secondary sampling process
The secondary sampler is a Vezin style sampler with a sample cutter which can be operated continuously or intermittently to ensure the desired final sample volume is achieved
The primary sample cutter has wash-down jets at each park position to allow the cutter to be cleaned between samples. This prevents slurry build up on the cutter aperture avoiding blockages and contamination between samples
The body of the sampler can be lined with natural rubber, polyurethane or manufactured from stainless steel
Flanges allow easy connection to existing pipework
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