AFX Fusion Systems

A robotic bead fusion system that has been scaled to meet the varying production demands of XRF laboratories.

The AFX4 system is based on the hugely successful 12 furnace fusion systems that, to date, have mass-produced millions of fused beads. This compact 4 furnace system better suits the requirements of the typical production laboratory.

It contains the same reliable components and the same proven methodology as the original high capacity systems that revolutionised large scale bead fusion preparation techniques. This technology is now accessible to a wider range of end users.

It is technology that distinctly surpasses any previous methodology and apparatus currently used in XRF laboratories around the world. It provides an efficient alternative from the low volume, manually demanding, batch processing methods currently adopted.

The AFX4 cell allows for manually filled crucibles to be introduced via a conveyor. The ADFX4 cell has the added benefit of automating the sample and flux dosing stage.

Linear Automation Systems

Essa’s linear automation systems link high capacity sample preparation equipment with proven mechanical sampling devices using reliable sample transfer mechanisms.

Simply load your dried field sample into a crusher and collect the assay portion and pulp residue at the other end.

Linear automation systems offer many of the benefits associated with more flexible robot-based automation cells but at a fraction of the cost.



Greater consistency, improved traceability, better hazard management and insulation from labour availability and cost fluctuations are benefits from automating sample preparation processes.

These systems are specifically designed for medium throughput mineral laboratory sample preparation requirements. They are ideal for processing mineral ores such as gold, nickel and iron ore.

They are well suited for use at remote mining and exploration sites and do not require skilled labour to operate.

OEM Sample Preparation

Tungsten Carbide Pulverising Mill Bowl

Tungsten carbide is the grinding head of choice for many laboratories where elemental contamination is limited to just two principal contaminants: tungsten and cobalt.

With the Essa 125cc grinding head all surfaces in contact with the sample (bowl, ring, roller and lid) are machined from tungsten carbide. The bowl chamber and inner lid layer are encased in stainless steel to increase overall strength and to reduce material cost.

The bowl and lid incorporate ergonomically-designed lifting flanges to enable easier handling when processing samples.

Chemical Composition:
Cobalt (Co): 6.0% by weight
WC: balance

Work Benches & Trolleys

They are of fabricated steel and heavy duty sheet metal construction. All have a 5 mm thick steel bench top which is 900 mm from floor level, 750 mm deep and available in 1200, 1500, 1800, 2000, 2400 and 3000 mm lengths.

WORK STATIONS:
For sample preparation areas. Supplied with a zinc anneal sheet metal hood (as illustrated) and a below bench level full length dust duct along the back edge of the bench top. The entrance to the duct is covered with a heavy mesh screen at bench-top level.

WEIGH BENCHES:
Are essentially the same as a Work Station but with a solid bench top and vertical extraction point over the work area.

GENERAL PURPOSE WORK BENCHES:
Are essentially the same as the Work station but without a hood and with a solid bench top.

OPTIONS FOR ALL BENCHES INCLUDE:
5 mm thick rubber bonded to the working surface of the bench top, a heavy duty mesh shelf below the bench and over the bench lighting.

Ventilated Work Stations

They are of fabricated steel and heavy duty sheet metal construction. All have a 5 mm thick steel bench top which is 900 mm from floor level, 750 mm deep and available in 1200, 1500, 1800, 2000, 2400 and 3000 mm lengths.

WORK STATIONS:
For sample preparation areas. Supplied with a zinc anneal sheet metal hood (as illustrated) and a below bench level full length dust duct along the back edge of the bench top. The entrance to the duct is covered with a heavy mesh screen at bench-top level.

WEIGH BENCHES:
Are essentially the same as a Work Station but with a solid bench top and vertical extraction point over the work area.

GENERAL PURPOSE WORK BENCHES:
Are essentially the same as the Work station but without a hood and with a solid bench top.

OPTIONS FOR ALL BENCHES INCLUDE:
5 mm thick rubber bonded to the working surface of the bench top, a heavy duty mesh shelf below the bench and over the bench lighting.

Multiload & Multipour Systems

Essa pioneered the development and engineering of the apparatus to facilitate multiple crucible loading and pouring in fire assay. The invention of both the multiloading and multipouring systems is one of the few innovations to benefit fire assay technology in recent times – a technique that has remained relatively unchanged for centuries.

Working closely in conjunction with fire assay operators the Essa multiloading and multipouring systems are practically designed, easy to operate and robust in construction.

These systems are specifically designed to suit your particular requirements and cater to such variables as crucible and cupel type, furnace manufacture and crucible layout configuration in the furnace.

Flux Mixers

Flux Mixer 25 BOX 220/240 50HZ

Length: 1.500 m
Width: 1.500 m
Height: 1.100 m
Weight: 120.000 kg

Flux Mixer 50 220/240V 50HZ

Length: 1.500 m
Width: 1.500 m
Height: 1.100 m
Weight: 125.000 kg

Y Blender 380V 50HZ

Length: 1.850 m
Width: 1.000 m
Height: 1.300 m

Fusion Furnaces

25 Pot Fusion Furnace (gas)

Construction	Cabinet of 5mm steel sheet mounted on a fabricated steel stand.
Refractory lining	Hot face of 70% alumina fire-brick backed with insulating fire-brick.
Internal dimensions	600mm wide x 680mm deep x 400mm high
Burner equipment and ratings	LPG: 1 x 40mm long pattern aspirator with flame retention nozzle. Burner rating 270MJ/hr @ 140 K.P.A Gas consumption 10.3 litres/hr for heat up: 6 litres/hr at operating temperature. Natural gas: 1 off gas package burner rated @ 270MJ/hr @ 3 K.P.A
Flame supervision	Landis & gyr LGB 41 flame controller and U.V. cell
Door operation	Pneumatic rising operation by foot control
Temperature control	Electric, auto control 1200oC K Thermocouple
Electrical requirements	The furnace is fitted with a 10 ampere single phase cord and plug top. Electrical load 2 amperes.
Approx. overall dimensions with door open	1460mm wide x 1430mm deep x 1980mm high

50 Pot Fusion Furnace (gas)

Construction	Cabinet of 5mm steel sheet mounted on a fabricated steel stand.
Refractory lining	Hot face of 70% alumina fire-brick backed with insulating fire-brick.
Internal dimensions	1200mm wide x 680mm deep x 400mm high
Burner equipment and ratings	LPG: 2 x 40mm long pattern aspirators. Burner rating 520MJ/hr @ 140 K.P.A. Gas consumption 20.6 litres/hr for heat up: 12 litres/hr at operating temperature. Natural gas: 2 off gas package burner rated @ 360MJ/hr @ 1 K.P.A. (720 total)
Flame supervision	Landis & gyr LGB 41 flame controller and U.V. cell
Door operation	Pneumatic rising operation by foot control
Temperature control	Electric, auto control 1200oC K Thermocouple
Electrical requirements	The furnace is fitted with a 10 ampere single phase cord and plug top. Electrical load 4 amperes.
Approx. overall dimensions with door open	1790mm wide x 1455mm deep x 1960mm high

Diesel fuel and Electric fired models also available for all models.

Cupellation Furnaces

Gas fired (50 place and 100 place)

Construction	Cabinet of 2mm zinc anneal steel sheet lined with insulating fire-brick. Backed with Vermiculite Insulation board.
Internal dimensions (Muffle)	50 place: 260mm wide x 460mm deep x 200mm high 100 place: 480mm wide x 560mm deep x 300mm high
Burner equipment and ratings	LPG: 32mm long pattern insperator and flame retention nozzle. Burner rating 125MJ/hr @ 140 K.P.A Gas consumption 5 litres/hr for heat up: 3 litres/hr at operating temperature. Natural gas: 1 off package burner rated @ 150MJ/hr @ 1 K.P.A
Flame supervision	Landis & gyr LGB 41 flame controller and U.V. cell flame detector
Door operation	50 place: Counter balanced, rising 100 place: Pneumatic rising operation by foot control
Temperature control	Electric, automatic control 1200oC K Thermocouple
Electrical requirements	The furnace is fitted with a 10 ampere single phase cord and plug top. Electrical load 2 amperes.
Approx. overall dimensions with door open	680mm wide x 1050mm deep x 1740mm high (option: 1120mm wide x 975mm deep x 1900mm high)

Electric (50 place and 100 place)

Construction	Cabinet of 2mm zinc anneal steel sheet lined with insulating fire-brick backed with Vermiculite Insulation board. The furnace is mounted on a console fabricated from 2mm zinc anneal sheet.
Internal dimensions (Muffle)	50 place: 260mm wide x 460mm deep x 200mm high 100 place: 480mm wide x 560mm deep x 300mm high
Heating Elements	12 Silicon carbide elements rated at 10.5kW, 3 phase for 50 place furnace and 15kW, 3 phase for 100 place furnace. Power supply to the elements is per a multi-tapped double wound transformer.
Door operation	50 place: Counter balanced, rising. Manual operation. 100 place: Pneumatic rising operation by foot control
Temperature control	Electric, automatic control 1200oC type K Thermocouple. Fitted with high temperature alarm.
Electrical requirements	The furnace is fitted with a 10 ampere single phase cord and plug top. Electrical load 2 amperes.
Approx. overall dimensions with door open	700mm wide x 830mm deep x 1740mm high (option: 1120mm wide x 975mm deep x 1900mm high)

XRF Press

Essa Australia manufacture a bench mounted, two piece, high pressure, electro-hydraulic actuated press for laboratory use in the preparation of pressed powder samples for x-ray fluorescence analysis.

It is made up as a press unit and a separate 240 volt, single phase, electro-hydraulic power pack. The press unit is designed for free standing on the customer’s bench top with the separate power pack placed within a 3 metre hose length of the press unit. The most frequently used location for the power pack is the floor area beneath the press unit.

XRF Fusion Equipment

Essa Australia has engineered a single furnace XRF bead fusion machine that has the flexibility of being operated manually or easily incorporated into an automated laboratory environment. Fusion time is 9 minutes with a total cycle time of approximately 10-12 minutes per sample. Castable crucibles can be used which means no pouring is required. If normal crucibles are used then the fused sample must be poured into a mould. This can be done manually or automated using a small industrial robot. It would be, therefore, most efficient to incorporate several furnaces serviced by a single robot.

XRD Press

The Essa Australia XRD Press is designed to semi automate the preparation of pressed powder samples for analysis by XRD. The pneumatic piston forms a lightly pressed sample into a two piece sample holder associated with standard XRD analysers.

Test Sieves 200mm

Precision, High Quality Stainless Steel Test Sieves Designed for Accurate and Efficient Particle Size Analysis

Essa maintains substantial stocks of our own privately labelled 200 mm diameter test sieves.

These test sieves are manufactured to internationally recognised quality assurance standards. They are individually checked throughout manufacture either by optical projection or highly sophisticated computer scanning techniques and are certified for compliance with ISO 3310.

Each sieve is issued with a unique serial number and a certificate of compliance for full product traceability.

Essa specialises in sieves of stainless steel frame and mesh construction that are inherently more robust, durable and corrosion resistant than traditional brass sieves.

Test Sieves 100mm/300mm/450mm

A Comprehensive Range of High Quality Test Sieves

Essa maintains substantial stocks of our own privately labelled test sieves in a range of common diameters: 100 mm, 300 mm and 450 mm.

These test sieves are manufactured to internationally recognised quality assurance standards. They are individually checked throughout manufacture either by optical projection or highly sophisticated computer scanning techniques and are certified for compliance with ISO 3310.

Each sieve is issued with a unique serial number and a certificate of compliance for full product traceability.

Essa specialises in sieves of stainless steel frame and mesh construction that are inherently more robust, durable and corrosion resistant than traditional brass sieves.

Pressure Filters

For dewatering laboratory size batches of slurry sample and process concentrate

Essa pressure filters consist essentially of a vertical cylindrical barrel arranged to have a filter cloth installed at it’s lower end and to have a batch of slurry or process concentrate introduced at it’s upper end. The cylinder is then sealed and (air)pressurised, forcing the liquid to be separated from the solids content and discharged from the barrel, leaving the solids behind as an easily recoverable filter cake.

Flotation Test Machine

A bench top laboratory apparatus for establishing the percentage of reagents in a production flotation cell and for metallurgical test work

This versatile unit is used in metallurgical laboratories to perform agitation, attrition scrubbing and blending tests that can be replicated in a production environment. The variable speed control is complete with digital readout of the rotating speed of the impeller for greater accuracy, optimum speed control and repeatability. Feed back capability is available as an optional extra. The unit is also supplied as standard with integrated air pressure and volume controls complete with read-out.

The test cells and their corresponding impellers are supplied as optional extras. The standard cells are of clear see-through acrylic in 0.5, 1.75, 3.0 and 5.0 litre capacity. The drive motor is 0.75 kW, for connection to a single phase power supply.

Bottle Rollers

Essa continuous duty bottle rollers are used for batch wet leaching and wet or dry grinding or blending of a wide variety of ores, minerals and similar particulate. They find particular application in the acid leaching of finely ground ore in mineral analytical laboratories. The unit is comprised essentially of rubber covered contra-rotating rollers on which plastic, ceramic or metallic jars containing the particulate are placed. The bottles are then rolled about their own horizontal axis until the desired leaching, grinding or blending result is obtained.

Essa offer 3 roll, 6 bottle and 3 roll, 12 and 24 bottle fixed rotational speed models suitable for 5 litre plastic bottles as the basic standard units in our range. These are available with variable speed drive and timer options. These two standard models are complemented by a wide choice of other capacities that are tailored to suit specific customer needs. This can include multi-tier units and the capacity to roll multiple 10 and 20 litre containers. All units are delivered fully assembled and with power lead and on/off switch ready for easy installation and connection to the customer’s power supply.

Bond Testwork Equipment

Internationally accepted mineral metallurgical standard test procedures to determine the physical properties of ores include the Bond ball mill work index and the Bond rod mill work index.

These are empirical indices determined by close circuit grindability tests developed by F.C.Bond in the mid 1930’s. They require a specific 305mm diameter x 305mm long (inside dimensions) horizontal axis ball mill without lifters operating at 70 rpm to perform grindabilities from 28 to 500 mesh and a 305mm diameter x 610mm long rod mill with a wave type liner operating at 46 rpm to perform grindabilities from 4 to 65 meshes.

Essa's ball and rod mills can be supplied as complying machines with the appropriate barrels and ball or rod charges. As with our standard range of ball and rod mills, the Essa bond index ball mill and bond index rod mill are supplied standard with a barrel and rotating yoke assembly and the electric motor drive mounted on a stand alone bench, funnel and screen. These machines will be of essentially the same physical arrangement and size as our standard range but with the customised features required to meet the Bond specifications.

Laboratory Rod Mills

Essa manufacture a range of metallurgical laboratory size ball and rod mills to suit most applications. Included in the range is a Bond Index Mill, which has specific application in establishing the grindability of ores.

The ball and the rod mill are of essentially the same basic concept comprising a barrel mounted in a rotating yoke assembly, which is driven through a gearbox from a three phase electric motor. The barrel is pivot mounted on the rotating yoke and can be tilted for loading and discharge. A spring loaded locking pin is used to hold the barrel in its horizontal operating position. A manually operated locking mechanism ensures the removable lid of the barrel is sealed tight during operation.

The mills are supplied standard with a barrel and rotating yoke assembly and the electric motor drive all mounted on a stand with a discharge funnel and screen. Just the barrel, yoke and drive mechanism can be mounted on a flat plate for attachment to the customer‘s work bench if required.

Laboratory Ball Mills

Essa manufacture a range of metallurgical laboratory size ball and rod mills to suit most applications. Included in the range is a Bond Index Mill, which has specific application in establishing the grindability of ores.

The ball and the rod mill are of essentially the same basic concept comprising a barrel mounted in a rotating yoke assembly, which is driven through a gearbox from a three phase electric motor. The barrel is pivot mounted on the rotating yoke and can be tilted for loading and discharge. A spring loaded locking pin is used to hold the barrel in its horizontal operating position. A manually operated locking mechanism ensures the removable lid of the barrel is sealed tight during operation.

The mills are supplied standard with a barrel and rotating yoke assembly and the electric motor drive all mounted on a stand with a discharge funnel and screen. Just the barrel, yoke and drive mechaism can be mounted on a flat plate for attachment to the customer‘s work bench if required.

Rotary Sample Collectors

An indexing carousel for the automatic collection and secure storage of samples being generated by a continuous sampling system.

Essa rotary sample collectors are essentially an electro-mechanically driven rotating carousel table carrying a number of removable sample receivers which are automatically indexed under the final discharge point of a continuous sampling system to collect and store the discharged sample/s. The inlet of all containers except that being immediately filled is kept sealed against moisture and dust loss or the ingress of foreign material. They are equally suitable for collecting free flowing solids or slurry. The sample collection containers are typically proprietary line polyethylene flasks which can be readily fitted to and removed from the carousel and can have screw lids fitted while being transported to the analytical laboratory. Stainless steel containers are an available option. The carousel is housed in a fabricated steel cabinet with easy access mesh frame doors which allow the unit to be viewed while operating. Safety switching is fitted to automatically disable the unit if any access door is opened, with the system automatically returning to its correct operating sequence when re-closed. The carousel can be indexed manually to bring any container to a convenient handling point.

Vezin Samplers

A circular path cross – stream sampler for primary or secondary sampling from a falling stream of slurry or free flowing solids

Essa Vezin sampler is a fully enclosed unit containing a rotating sample cutter that passes at constant speed through the falling stream of slurry or free flowing solids entering it. Correct cutter geometry design ensures radial cutter edges accurately cut a fixed portion of the stream. The portion of the stream sampled by the cutter is diverted to the customer’s sample collection system while the remainder passes through for continuous discharge.

One, two or four cutters can be fitted to ensure a representative sample is collected. The cutters and liners are readily replaceable in the field.

Essa Vezins are specifically designed to be minimum maintenance units.

Linear Cross Stream Samplers

State of the art technology for the primary and secondary sampling of falling streams from belt conveyors.

Essa are the Australian pioneers of a range of electric motor driven ball screw samplers that find particular application in collecting a representative samples from the material stream being discharged over the head pulley of a belt conveyor. These are setting new standards of performance and reliability that traditional chain, pneumatic and hydraulic drive samplers can find difficult to match.

The ball screw sampler maintains genuine uniform cutter speed through the falling stream; even when wear eventually occurs. The concept has been long term field proven in a broad range of medium to extra heavy applications.

The ball screw sampler is of simple yet rugged construction designed for maximum operational availability with low maintenance, in even the most arduous applications.

The electric motor driven ball screw mechanism produces a very rapid acceleration and deceleration time and results in a constant speed drive, which does not slow down when confronted with the falling stream be sampled. It’s combination of a powerful directly coupled electric motor and the huge mechanical advantage produced by the ball screw and nut assembly ensures that sampler performance conforms most closely to recommended sample theory.

The installation of the falling stream (linear) sampler at the discharge end of a belt conveyor is an internationally preferred method of sampling the material being carried by that belt conveyor. Various international standards have been established to assure the sampler performs in a manner which assures that the collected sample is truly representative. One of the most relevant requirements of these standards is the sampling cutter must travel back and forth through the falling stream at a uniform rate. Sampling equipment manufacturers have traditionally used chain, pneumatic or hydraulic drives to satisfy this requirement. Essa have been Australian pioneers in the use of this precision ground (square) screw thread and ball nut concept to drive falling stream samplers. This is a truly positive drive system, which by its very nature is obliged to travel through the falling stream at a uniform rate. It has none of the potential “elasticity” of pneumatics or hydraulics and will continue to operate at a uniform rate even when the mechanism eventually begins to wear. Essa’s simple, yet rugged, application of the concept assures maximum reliability and availability of the system.

Further specifications relating to the ball screw samplers can be obtained by downloading the Ball Screw Sampler Data Sheet below.

Essa also offers a full range of complementary sampling and sample size reduction equipment and a design through to commissioning service for complete sampling stations and systems.

ESSAir Dust Collectors

The Gold Series®

The Gold Series cartridge dust and fume collector combines enhanced performance with the ease of service while cleaning the work environment of irritating dust and fumes. The Gold Series cartridge dust and fume collector may be used for a wide range of pollution control and product recovery applications.

The Gold Series is the next generation dust collector, building on 25 years of experience with Farr APC’s Tenkay® dust collector.

Enhanced performance features with exceptional ease of installation and service make the Gold Series the ultimate choice for a clean workplace.

Featuring the Gold Cone in the center of the cartridge, cleaning is accomplished by pulse waves that emanate outward from this inner cone providing enhanced cleaning for more efficient operation, longer cartridge life and reduced service requirements.

In most cases, the Gold Series meets the 5mg/m3 or fewer emissions required to recirculate the air back into the work place on non-hazardous dusts.

Meeting airflow requirements with a 25% smaller housing allows the Gold Series to deliver premium performance at a competitive price and take up less factory floor space. The service benefits are numerous offering faster, trouble-free change-out of cartridges.

DO4 Drying Oven

A very high-capacity oven that holds four wheel-in/wheel-out trolleys. The DO4 is the largest oven in the Essa range of heavy-duty cost-efficient electric ovens tailored for application and sample loads.

DO2 Drying Oven

A functional and reliable oven that holds two wheel-in/wheel-out trolleys. The DO2 is the mid-range oven in the Essa series of flexible high-capacity electric ovens tailored for application and sample loads.

DO1 Drying Oven

A robust and user-friendly oven with a single wheel-in/wheel-out trolley. The DO1 is the smallest oven in the Essa range of efficient high-capacity electric ovens tailored for application and specific sample loads.

Bowl and Disc Pulveriser Bowls

A unique range of bowls from 10 to 5000cc nominal capacity

The patented bowls consist of a single, solid “flying saucer” shaped puck operating in a bowl with a concave curved bottom surface. The mass of this single puck in combination with the spatula like grinding interaction between its lower curved surface and that of the bowl provides superior pulverizing with grinding performance. The puck also has an off-centre, truncated hole through it to assist in the mixing of the sample to assure homogeniety. These bowls are of through hardened steel construction for optimum life. They are available in 800, 1000, 2000 and 5,000cc nominal capacity.

Autobatch Mill

An automated vibratory ring mill for preparing up to 1.8kg of ore or mineral for analysis.

The Autobatch™ is an “automated” adaptation of the very successful Labtech Essa model LM2 batch ring mill incorporating a permanently attached, self-discharging bowl which is air blast and vacuum cleaned between batches (with the residue going to the customers dust collection system). The unique Labtech Essa ”flying saucer” puck style of bowl integrated into this machine assures a homogeneous sample is prepared. Bowl discharge and cleaning is controlled by an onboard PLC which also controls the milling cycle. Operator functions are reduced to tipping the feed sample into a feed hopper, pressing a “start” button and removing a container that receives the milled sample. These 3 only manual operations can be replicated by a robot thereby making the Autobatch™ ideally suited for integration in to a robotic cell.

Ring & Roller Pulveriser Bowls

Essa traditional ring and roller style bowls are available in 50, 100, 125, 300 & 400cc nominal capacity. These too are of through hardened steel construction as standard, with optional materials available on request.

LM2 Pulverising Mill

Vibratory mill for rapidly preparing up to 1.8kg of ore for mineral for analysis (with the extra power of a 2.2kW shaft drive)

The vibratory head of the model LM2 is driven by a universal shaft powered by vee-belts from a standard, stationary (non-vibrating) 2.2kW electric motor. This drive arrangement delivers more power to the grinding bowl and optimises motor life (because it is not exposed to direct vibration as happens in traditional integral vibratory motor driven mills). The mill also differs from traditional integral vibratory motor driven mills). The mill also differs from traditional mills because of it’s ability to be fitted with a unique 800cc, 1000cc or 2000cc single puck type grinding bowl in addition to any standard size of ring and roller grinding bowl.

The LM2 mill is used for pulverising ores, minerals, metallurgical samples, ceramics, soils, aggregates, chemicals and similar particulate. Typically, samples can be ground to 95% minus 75 micron in approximately 3 minutes depending upon their mass and physical characteristics.

The model LM2 is well suited to high volume mineral laboratories regularly preparing large samples in the unique Essa single puck style of bowl or to any laboratory remote from the specialised repair services typically required for integral vibratory motor driven mills.

LM1.5 Pulverising Mill

Vibratory motor driven mills for rapidly preparing up to 1.8kg of ore or mineral for analysis

The LM1.5 is a reliable and robust adaptation of the traditional vibratory ring mill that incorporates an integral 3 phase vibratory duty electric motor drive. This mill however differs from traditional mills because of its ability to be fitted with a unique 800cc, 1000cc or 2000cc single puck type grinding bowl in addition to any standard size of ring and roller grinding bowl.

The LM1.5 mill is used for pulverising ores, minerals, metallurgical samples, ceramics, soils, aggregates, chemicals and similar particulates. Most samples can be ground to 95% minus 75 micron in 1 to 3 minutes depending upon their physical characteristics. These machines are well suited to laboratories mainly using traditional ring and roller bowls but who also want to use the range of higher capacity bowls on an intermittent basis to prepare larger batches of homogeneous sample.

The LM1.5 has a more powerful drive motor than the LM1 and is recommended when the largest bowls are used frequently and/or when the mill is to be connected to a 60 cycle power supply.

LM1 Pulverising Mill

Vibratory motor driven mills for rapidly preparing up to 1.8kg of ore or mineral for analysis

The LM1 is a reliable and robust adaptation of the traditional vibratory ring mill that incorporate an integral 3 phase vibratory duty electric motor drive. This mill however differs from traditional mills because of its ability to be fitted with a unique 800cc, 1000cc or 2000cc single puck type grinding bowl in addition to any standard size of ring and roller grinding bowl.

The LM1 mill is used for pulverising ores, minerals, metallurgical samples, ceramics, soils, aggregates, chemicals and similar particulates. Most samples can be ground to 95% minus 75 micron in 1 to 3 minutes depending upon their physical characteristics. These machines are well suited to laboratories mainly using traditional ring and roller bowls but who also want to use the range of higher capacity bowls on an intermittent basis to prepare larger batches of homogeneous sample.

LM5 Pulverising Mill

Vibratory ring mill for preparing up to 3.5kg of ore for mineral for analysis

The Essa model LM5 mill is used for pulverizing ores, minerals, soils, metallurgical samples, ceramics, aggregates, chemicals and similar particulates. It finds particular application in mineral laboratories needing to prepare larger, more representative samples. Typically, samples of approximately 3 to 3.5 kg mass can be ground to 90 to 95% minus 75 micron, while larger samples up to approximately 4 to 5 kg can be reduced to approximately 0.5 to 0.8 mm particle size (all subject to the physical characteristics of the material. and the condition of the grinding elements). Grinding time will be approximately 5 to 8 minutes.

RC2000 Rolls Crusher

A rugged, low maintenance mid-range secondary crusher designed for rapid, controlled size reduction of various sample types. The RC2000 is the smaller of the two Essa model rolls crushers and is ideally suited to laboratory applications.

LM5 Pulverising Mill

Vibratory ring mill for preparing up to 3.5kg of ore for mineral for analysis.

The Essa model LM5 mill is used for pulverizing ores, minerals, soils, metallurgical samples, ceramics, aggregates, chemicals and similar particulates. It finds particular application in mineral laboratories needing to prepare larger, more representative samples. Typically, samples of approximately 3 to 3.5 kg mass can be ground to 90 to 95% minus 75 micron, while larger samples up to approximately 4 to 5 kg can be reduced to approximately 0.5 to 0.8 mm particle size (all subject to the physical characteristics of the material. and the condition of the grinding elements). Grinding time will be approximately 5 to 8 minutes.

Continuous Ring Mill

A special adaptation of the Ring Mill capable of processing larger batches of mineral sample on a continuous flow through basis.

The Essa continuous ring mill is selected for those applications where ring milling would be the preferred method of reducing a coarse sample to analytical fineness but the quantity to be milled is greater than the capacity of a standard ring mill. Ring milling is a preferred methodology for rapidly reducing coarse mineral, ore and similar particulate to the degree of fineness required for laboratory analytical procedures. The resulting sample is homogeneous and repeatability is excellent. Each batch is processed on a one-at-a time basis in a sealed bowl to minimise the possibility of contamination from the outside or the loss of sample as dust. The largest batch that can be prepared in a ring mill however is only approximately 5kg. When a need is seen to prepare larger samples, they can be processed in a standard ring mill in smaller batches on this one-at-a-time basis and then be recombined or the Labtech Essa Autobatch™ ring mill can be used to perform this same function on an automatic basis.

Micron Mill

Revolutionary New Milling Process

Essa Australia has developed a very large capacity (sample masses up to 10kg) Micron Mill that utilises a patented ® “ring and spigot” milling process. This innovative milling configuration provides rapid preparation of large samples with sample division at smaller particle sizes.

It has been principally designed as a large capacity coarse mill to achieve a 95% less than 250 micron product. This results in a significant improvement in quality of the final sample which will be more representative. The whole sample can be processed in one pass.

Use of the Micron Mill will greatly enhance the division process and allow smaller samples to be reliably split. It allows for larger samples to be taken at the drill rig to be prepared in the laboratory more efficiently. It may also eliminate the need to use a fine jaw crusher for primary crushing.

The Micron Mill allows for automated loading, discharge and cleaning.

® Registered Patent No.: 2004201198

Disc Pulverising Mill

The Essa Disc Pulveriser is a simple, durable machine for fine grinding all types of ores.

Fully welded steel construction with a powerful 4 kW 3 phase WEG motor. The grinding chamber comprises one fixed and one rotating 200mm diameter grinding plate turning about a horizontal axis. The internal surfaces of the grinding chamber are smooth faced and easily accessed and cleaned between samples.

Product sizing is controlled by the gap between the two plates. A simple screw adjustment is used to set the gap.

The operating capacity of the disc pulveriser depends upon the gap setting, fed size and the crushing properties of the ore being processed. Typical capacities are 15 to 150 kg per hour.

The Essa Disc Pulveriser can be supplied as an option mounted on a specially built bench complete with dust extraction hoods for dust free operation.

Hammer Mill

For the rapid reduction of core samples or lump ore of approximately 50 mm diameter sizing.

The Essa 450 mm dia. Hammer Mill is designed to reduce approximately 50 mm diameter drill core or lump ore to 100% minus 2 mm with approximately 80% minus 250 micron.

It is supplied as standard complete with 7.5 kW direct drive motor, lead, plug, stand and dust hoods. A Blow down air system to reduce cross contamination between samples is also supplied as standard.

All wearing parts are readily replaceable. Pneumatic or electromagnetic disc braking is available as an optional extra. This provides for safer operation and allows rapid cleaning between samples if required.

RC3000 Rolls Crusher

A dependable and sturdy mid-range secondary crusher designed for rapid, controlled size reduction of various sample types. The RC3000 is the larger of the two Essa model rolls crushers and can be configured to suit a range of applications.

JC2500 Jaw Crusher

An innovative jaw crusher with an extraordinarily high reduction ratio and sample throughput. The JC2500 is one of the fastest fine jaw crushers on the market and ideally suits high production laboratories employing high quality sample preparation techniques.

Wescone Lab Cone Crusher

The Wescone 300 is a unique, compact, high speed, high reduction ratio cone crusher for sample crushing in both laboratories and sampling plants.

JC1000 Jaw Crusher

A versatile entry-level jaw crusher suitable for a wide range of applications across many industries. The JC1000 is a simple medium duty general purpose crusher that accepts samples up to 85mm in size.

JC2000 Jaw Crusher

A dependable and hard wearing jaw crusher that finds general application in a variety of laboratory environments. The JC2000 is a sturdy “workhorse” engineered to be the industry standard crusher for the geochemistry laboratory.

JC3000 Jaw Crusher

A general purpose, low maintenance jaw crusher suitable for laboratory and plant use. The JC3000 is a rugged high reduction jaw crusher that can be configured to suit a range of applications.

JC5000 Jaw Crusher

A robust and dependable high-capacity jaw crusher suitable for laboratory and plant applications. The JC5000 is the largest model in the Essa range of proven and reliable heavy-duty jaw crushers.