Metallurgical testing equipment for reliable, repeatable results

Essa® Bottle Rollers 

Essa® Bottle Rollers are durable, efficient, continuous-use machines that will improve the productivity of your laboratory. Use them for batch wet leaching and wet or dry grinding or blending of a wide variety of ores, minerals and similar particulate. They are the ideal machine in mineral analytical laboratories for acid or cyanide leaching of finely ground ore. 

Easy to operate
We’ll deliver your unit fully assembled and with power lead and on/off switch ready to connect straight to your power supply. 

Good value for money
The basic construction means these are low price-point machines, no matter which model you require.  

Essa® BR Series Bottle Rollers - our standard range offers variable rotational speed models in 6, 12 and 24-bottle units. Best suited for five-litre plastic bottles. 

Essa® Certified Plant and Laboratory Pressure Filters

Essa® Pressure Filters have been completely redesigned and built to comply with pressure vessel standards around the world. The new design gives you more productive filtration than ever before. Use them to separate solutions on mine sites, in gold rooms, assay laboratories and other metallurgical test facilities. 

When batch pressure filters were put under the spotlight in 2015 by the Government of Western Australia as posing a risk to mine safety, we were quick to respond. Our redesigned pressure filters achieve worldwide compliance, satisfying Pressure Equipment Directive 2014/68/EU, ASME VIII and AS 1210. We’re confident they will be the safest and easiest pressure filters you’ve ever used. 

Safety
Locking mechanisms on the lid clamping wheel prevent the wheel being turned or the lid opened while there is still pressure in the barrel. A shield around the base of the barrel protects you in case any liquid sprays out of the barrel while under pressure. 

Ergonomics and productivity
The new user-friendly design gives you vastly improved productivity. Easy-to-use clamping and a rotating base enable users to load and unload faster than ever before. The barrel easily lifts off the filter cake via a simple lever arrangement, reducing the risk of contamination or sample loss. 

Longevity
Our Pressure Filters are built almost exclusively with stainless steel materials and fittings so you can use and rely on them long term, even in corrosive or damp conditions.  

The units can operate at pressures up to 1380 kPa (200 psi), speeding up the filtering of less compactible materials. 

Essa® Laboratory Ball and Rod Mills

Use Essa® laboratory ball and rod mills for milling or grinding a broad range of wet or dry, soft, hard, brittle or fibrous material types. They are recognised for a consistently high level of sample purity. They are safe, easy to use and available in several barrel volume sizes and with mild steel or stainless-steel barrels. 

Designed with safety in mind 
Manually operated locking mechanism keeps the barrel’s removable lid sealed tight during operation, while sound-dampening enclosure with interlock functionality protects all laboratory staff. 

Easy to operate
Easy access pivot mounted barrel and straightforward control panel make these mills simple to use, while the quality construction ensures long life. 

Reliable grinding performance
These Essa® metallurgical laboratory mills grind a wide range of material types in various sample volumes, quickly and efficiently. The material in the mill is ground at a specific speed for a specific time, using a specific number of steel grinding balls or rods.  

The Essa® ball and rod mill range includes: 

• Essa® BM Series Laboratory Ball Mills – ideal for producing finer particles. Available in 6.3 L, 12.3 L and 21 L barrel volumes.
• Essa® RM Series Laboratory Rod Mills – suitable for larger and more coarse materials. Available in 7.8 L, 14.7 L and 25.4 L barrel volumes.