Longwall Automatic Emulsion Station

Accurate blending of emulsions have a direct effect on the productivity and profitability of many mining and industrial operations. The SmartDose hydraulic control system can completely automate the production of emulsion for plate rolling fluids, cutting fluids, coolants or longwall fluids in a coal mine.

SmartDose is exclusively available through Precision Light & Air, providing comprehensive sales, service and engineering worldwide.

Longwall Hydraulic Emulsion Control

Efficient and reliable dosing of Longwall hydraulic fluid maximises the operating life of hydraulic station components and pumping systems. With SmartDose, efficiency and reliability has been combined with high accuracy to provide extremely stable hydraulic fluid system make-up.

Irrespective of variations in local field parameters, SmartDose controls ‘oil to water ratio’ within 0.15%, guaranteeing premium quality hydraulic fluid. Concentration is un-affected by oil tank head pressure, water flow or pressure variations, raw oil concentrations or installation position.

Mine operators employing SmartDose are provided with high quality oil consistently, and reliably, enabling enforcement of the equipment manufacturer’s warranty, typically with a reduction in raw oil expenditure. One of the many advantages of using a SmartDose blending system.

SmartDose is fully automatic and requires no operator intervention, reducing mine labour costs, with existing systems currently providing greater than 99.8% availability.
Should the raw water line pressure or flow change due to varying demand in other sections of the Longwall, SmartDose will adjust the oil dosing rate automatically maintaining a constant output and a continuous supply of premium quality hydraulic oil.

Operation of the SmartDose system is initiated by high and low sensors in the bulk emulsion tank. Once the low level is reached, SmartDose will automatically produce fluid of the correct concentration until regulated levels are maintained.

Precision Light and Air Offices

Precision Light and Air Australia (Head office)

PO Box 73
Seaford Vic 3198
Phone: +61 3 9786 1711

Precision Light and Air North America (sales office)

Contact: Patrick Morgan
Phone: +1 876 381 0125
Fax: +1 876 963 0313

Nanjing Precision International Corp

Contact: Matt Chen
Level 6, Unit 2, Building 21
Yangzi Kechuang Headquarte
5 Pudong North Rd, Pukou District, Nanjing
P.R.China. 210031
Phone: +86 139 0515 8762


Utah and Surrounding States

Process Technology
4084 South 300 West
Salt Lake City, Utah 84107

South America: AS-Chile

Contact: Ruben Morales Aravena
Telefono: +56 2 277 7480


Yellow Solutions
Office phone: +55 19 3648 0592
Office address: Rua Peru, nº 636, Sala 902 – Ed. Win Office Tower - Americana – SP
Web address:


Contact: Sergio Burelli
Phone: +27 (0) 11 568 2092
7 Sam Green Road
Tunney, Germiston 1401, South Africa