"We are very proud to own CDE Global's first Combo X70 Mobile Washing Plant in Tanzania," says Darpan Pindolia, Director of Dar es Salaam-based Estim Construction, one of the largest civil and building companies in East Africa." Estim Construction builds high-rise buildings with assurance of highest quality, strength, and consistency.
"This new CDE Global installation, which we understand is the most advanced plant of its kind in East Africa, has enabled us to optimize production and maximize our return on investment through consistency in feed rate, with the added bonus of giving us the edge over our competitors," explains Darpan Pindolia.
A testimony to the growing awareness in the quarrying industry of the multiple benefits of sand washing, the partnership between CDE Global and Estim Construction in Dar es Salaam was a labour of love and an exciting breakthrough in the African market. From humble beginnings 25 years ago in the form of a small truck, Estim Construction have grown to become one of the largest and most respected companies in Eastern and Southern Africa, with headquarters in Dar es Salaam, Tanzania and sister offices in Zambia and Mozambique. Estim Construction's dedication to excellence and innovation mirrors the CDE work ethos, so developing the most efficient sand washing solution was a gratifying process resulting in a product that surpassed Estim Construction's expectations.
As the company now enjoys optimized quality and increased productivity, the future looks bright.
Communication of initial needs with CDE Global was made easy as their South Africa-based Business Development Manager was always available to talk without time zone constraints or for a visit to the customer's site. In-depth conversations followed, based on observations made during site visits, and effective communications with all relevant sections of the company led to the identification of specific requirements and to a unique sand-washing solution to be developed, focusing on Estim Construction's priority of two different sands and maximum recycling of processed water.
Key to the success of CDE Global is having representatives based at the heart of each region of the world, who understand the specificities of the sand washing sector in their area and can relate to the customer's needs. Their current Johannesburg-based representative has been sharing his expertise with companies throughout Sub-Saharan Africa for over eight years, providing customer care and expertise to the sand, aggregate and mining industry.
To ensure that Estim Construction had complete ownership of their operation, a CDE engineer trained an Estim Construction operator to oversee the installation and take actions based on the changing characteristics of the feed material.
"The plant is fed 50 tons per hour to produce 40 tons per hour of final quality washed sand. Waste and water from the EvoWash report to the AquaCycle high-rate thickener so that up to 90% of the water is recycled and reused. The concentrated fines are flushed out, resulting in minimal water replenishing the water tanks."
The new CDE sand washing plant for Estim Construction has now been running for two successful years. Estim Construction's Director Darpan Pindiola concludes: "We could not be happier with the choice we made. Working with CDE Global, and especially their Business Manager and engineers, has been a crucial factor in achieving the best final product.
"Thanks to our CDE Combo X70 we can now complete orders for various grades of concrete required for rafts, columns and slabs to produce paving blocks and other items in the knowledge that we will always meet our clients' deadlines and produce consistent quality and output throughout the washing process," says Nicolan Govender.