Designed to meet the needs of the most productive mines around the globe

Advanced trommel design

All mines want to reduce unexpected events and downtime. With our trommel frames, you can rest assured that your equipment is of the highest quality – engineered to be strong and lightweight, and designed to increase your uptime and provide safe handling.

We manufacture our trommel frames and screen media in FLSmidth fabrication centres around the globe, according to internationally accepted engineering standards and procedures.

Strong and durable

To extend and maximise your asset life, we verify the structural design of our trommel frames through finite element analysis (FEA). This guarantees the engineering behind all components of the frames. Complete design using an FEA calculation includes static and fatigue/strength assessment, as well as strength assessment on the bolts. 

We stress relieve your trommel frame after fabrication and before machining. We also apply protective lining on each frame in the areas that are likely to be exposed to erosive and abrasive wear.

Screening media size options

To ensure rapid delivery and streamline inventory management, our screening media is available in two standard sizes and in a number of thickness combinations. Our modular screen media panel sizes are 657 mm × 400 mm (25.86 in × 15.75 in) and 726 mm × 400 mm (26.75 in × 28.58 in). These standard dimensions allow us to supply your media from any FLSmidth manufacturing centre, and guarantee your media will conform to our unparalleled quality requirements and material specifications, while providing equal fabrication reproducibility.

Our experienced engineers are committed to finding the best solutions. We examine every aspect of your screening process to help ensure efficient pulp flow characteristics, proper separation, maximum wear life and maximum equipment uptime.

Pulp flow

We use our state-of-the art discrete element modeling (DEM) software to simulate your trommel performance. We then model, predict, optimise and enhance your assets for the highest  possible recoveries and efficiencies.

Screening media configuration

Using DEM software, we analyse your trommel’s material distribution in order to optimise your screening media configuration.

Media selection optimisation assistance

Our media optimisation assistance works to improve production because we start with an array of the highest quality media options and then we perform an in-depth analysis of your product, feed and operating conditions to determine the best material for you.

DEM software

As part of our efforts to help you select the best media for your needs, we use technological tools such as discrete element method (DEM) software. We use the software to simulate pulp flows through the surface of your screen. With this information we can project the discharge rate, wear patterns and material distribution over the screen.

With the combination of our experience and DEM projections, we optimise:

 

• Media selection to reduce panel wear and increase screen life
• Deflectors positioning for improved mineral distribution
• Feed impact condition and screening efficiency to increase the screen capacity
• Screening efficiency

In the end, this process reduces your operating and maintenance costs. One of our recent customers found that their wear life was tripled when they allowed us to help them with their media selection and did a trial of our newest grade of polyurethane.

Screening panel features

 

• Full range of panel thicknesses, in customised polyurethanes or rubber formulations, built to suit high-top-size-impact or high-abrasion situations, and tailored to any ore type
• Optional riders bars for greater wear resistance
• Optional modular spirals manufactured in a customised helix angle for your application, and configured for your specific flow-advance or flow-retard requirements   
• Circumferential dams to aid pulp distribution and reduce material flow velocities for improved drainage and screening efficiency
• Separate section
• Designed using discrete element modeling (DEM)

Screening media securing system

 

• Clip-on/clip-out design securely and easily mounts screen media panels to structure rails
• No special tools or installation components required for installation or maintenancE

Optional high-pressure spray washing system

 

The washing system is custom-designed and manufactured to deliver efficient washing and recovery of fines that adhere to oversize material. These fines are undesirable, as they can interfere and affect downstream processes, such as pebble crushing.