Gravel, sand, coal and many basic materials must cover a long path before they are suitable for further processing. Vibration conveyors are an important part of this process, as they drain the excavated sand, screen gravel according to grain sizes, take the fine-grained material load off breakers or mills and assist in the cleaning of wash water. They are ideal for use in the basic materials industry, where vibration conveyors are characterised by their wear-poor, rugged construction and lifetime duration. Precise screening to grain sizes, high service and temperature-resistance are also advantages of vibration technology.

Bulk material vibrating screens

The company's experience in industrial vibration can also be applied to the screening practice. HAFE's delivery programme also focuses on screening machines for a multitude of tasks. The company's screening machines have been delivered to the market and run to the full satisfaction of the users, including:

• Linear-motion vibrating screens driven by electromagnetic vibrators, unbalance motors or exciters
• Banana screens with different screening decks and driven by exciters
• Circular motion vibrating screens with shaft drive
• Elliptical motion vibrating screens with individual unbalanced drive
• Dewatering screens for solid-liquid separation
• Grizzly screens for coarse pre-separation
• Fine screens with infinitely variable magnetic drive
• Twist screens
• Multi-sizer screens

Bulk material vibrating conveyors

Vibrating conveyors are suitable for conveying and metering of pourable bulk material up to almost any particle size. Ensuring a robust and open, trough-shaped structure makes particularly suitable conveyors in extreme environmental conditions. Vibrating conveyors are highly suitable to be used as hopper discharge units. Here, the vibrating conveyor joins the application closing, discharging, conveying and dosing mechanism in one unit.

HAFE's vibrating conveyors include:

• Trough conveyors
• Hopper discharge units
• Guided arm troughs
• Spiral conveyors and more

Weighing and metering of raw materials

Mined raw materials can be divided into three major groups: elementary, for metallurgy and chemistry such as gold, iron ore and haematite; energy, such as hydrocarbons, crude oil and natural gas; and special property, such as industrial minerals, stones, soils, bulk raw materials and precious stones.

HAFE offers weighing equipment for these types of bulk materials, including:

• Heavy-duty truck scales
• Belt weigh feeders
• Belt scales
• Hopper scales
• Loss-in-weight
• Big-bag systems and more

Drive and dosing technology

HAFE components are known throughout the world for their ruggedness and durability, and use high-quality materials in machines and components. The high-quality designs, durability of materials, low maintenance costs, a high level of operational reliability and intelligent design solutions provide long-term value through performance and service life.

HAFE provides:

• Unbalance exciters
• Unbalance motors
• Magnetic vibrators

Screens for diamond, coal, iron ore and precious and base metal mining

The Multi-slope screen is capable of achieving exceptional throughput per screening area. The screen is a high-capacity, thin layer and high-velocity machine, and may include any number of deck slopes from two to as many as six, varying from 45º through to horizontal on the last slope. All of the various slopes may also incorporate deck media with different apertures to meet the particular process requirements.

Multi-slope screens, which vary in size from 1.8m wide to over 4m wide, are commonly designed to fit modular polyurethane deck panels. Depending on requirements, woven wire or punch plate may also be used. Screens are also available in a double deck arrangement which reduces the number of equivalent horizontal single deck units installed.

A linear motion and large vibration amplitude with high screen acceleration make Multi-slope screens suitable for many varied size classification applications. These features also reduce the incidence of blinding and pegging. Common applications for this screen type include:

• Diamond mining (primary and secondary sizing)
• Coal mining (primary and secondary sizing, stockpile load-out)
• Iron ore mining (primary and secondary sizing, mill discharge)
• Precious and base metal mining (secondary sizing, mill discharge)
• Others (soda ash processing, potash processing, uranium processing)

Mobile material screening equipment

HAFE Mobile Screens provides the material processing industry with the broadest range of quality screening solutions for the quarry, recycle, sand and gravel, coal, landfill and other material processing industries.

Polyurethane screens, for screening and dewatering machines

HAFE manufactures polyurethane screens of all types and dimensions, to fulfil the requirements of its clients in many countries. Before manufacturing, each polyurethane screen is carefully designed on the basis of the information received from the client. All the characteristics of the polyurethane screens are defined: dimensions, thickness, apertures (square, round, slot), steel frame, blind zones, fixing holes, hooks, shore hardness, polyurethane quality.

Only high-quality polyurethanes are used to guarantee the highest performance in terms of abrasion resistance, cut and tear resistance, flexibility and resilience. HAFE is able to produce polyurethane screens of all types: tensioned, self-supporting, modular panels with all different locking systems, flip-flow mats, dewatering panels etc.

A wide range of polyurethane accessories for screening machines, such as bars, plates, wedges, washers, are kept in stock ready for a quick delivery to our clients.