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.