Promix Industrial Mixers | WJW Engineering

KEENAN develops practical industrial mixing solutions that prioritise durability, efficiency, and value across multiple sectors. Their mixers are engineered for straightforward upkeep, reduced energy demand, and dependable mixing quality, supported by a strong service network. Designed for heavy duty use, the equipment delivers precise results across both high capacity and smaller scale mixing operations.

Every mixer is equipped with a front-mounted KEENAN controller featuring an 8-inch display, which manages and coordinates all mixer functions.

We support KEENAN industrial mixing systems, with maintenance, repairs, and full servicing to keep equipment running efficiently. We also provide design and fabrication of structural steelwork, conveyors, hoppers, and other handling systems, along with an online parts store for easy access to components. Our integrated approach ensures reliable operation and full lifecycle support for your machinery.

Genuine Keenan Parts

Mixing solutions for many industries

Biogas facilities using KEENAN equipment have reported improvements in operational stability and efficiency, alongside higher energy output, improved profitability, and enhanced batch data monitoring.

A German study showed that using KEENAN equipment leads to steadier plant operation and more efficient biogas production. The uniform substrate feed improved power output consistency, reduced fluctuations in energy and biogas generation, and boosted profitability, adding roughly £42,000–£57,000 annually.

KEENAN has extensive experience collaborating with the composting industry. Our equipment efficiently chops and blends residual waste into a uniform, homogenous mix, with the precision to incorporate small, specialized ingredients. The resulting material is ideal for horticulture, landscaping, and agricultural applications, producing a marketable product that can be sold commercially.

By reducing the amount of biodegradable waste sent to landfill, a more sustainable waste product is being created, helping to lower greenhouse gas emissions in the process.

Equestrian and multi use sports surfaces are a major investment, and with the growth of arenas and training facilities, expectations for performance and safety have increased. KEENAN mixers are used worldwide to create consistent, high quality synthetic surfaces that reduce the risk of injury for horses and riders, provide all weather durability, and require less maintenance than traditional dirt tracks. Leading providers of thoroughbred racing and training surfaces rely on KEENAN equipment to ensure every mix meets the highest standards.

Providing safe and comfortable bedding is essential for animal health and performance, and a consistently mixed product greatly enhances comfort. KEENAN has long worked with the livestock and animal bedding industry, designing robust, low maintenance mixers that handle a variety of input materials. With specialised attachments for feeding, bagging, or dust control, our equipment ensures reliable operation and produces uniform, high-quality bedding that controls moisture, reduces odours, provides stable traction, and is easy to maintain.

As global food demand increases, feed mills must deliver efficient, compliant, and sustainable production. With over 40 years of experience, KEENAN designs heavy duty industrial mixers used across feed mills, premix facilities, TMR bagging centres, and milk powder plants, delivering consistent feed quality and reliable performance. Each mixer features a front mounted control unit with an 8-inch display for full process oversight, while the low power design helps minimise operating costs.

High quality growing media is critical for healthy plant growth and rapid root development, requiring carefully formulated blends of materials such as bark, minerals, and other constituents. KEENAN mixers process a wide range of compost inputs to produce consistent, well aerated mixes through a gentle tumbling action that preserves material quality. Sealed mixing chambers for liquid addition and customised discharge options, including bagging systems or elevators, help improve efficiency and reduce labour in bulk handling operations.

Innovative recycling solutions are creating new opportunities to reduce waste and support a sustainable circular economy. KEENAN works with recycling partners to deliver customised mixing systems for a wide range of materials, including projects such as the collaboration with McRebur, where recycled plastics are blended to create alternatives to traditional road building materials. KEENAN mixers are designed for reliability, low energy use, and consistent mixing performance across all batch sizes, with optional features available to improve safety, dust control, and operational efficiency.

Sludge management presents significant environmental and economic challenges, requiring the effective removal of nutrients such as phosphorus and nitrogen from wastewater and sewage. KEENAN mixers have been successfully used in sludge treatment plants for many years, providing reliable, custom mixing solutions that support regulatory compliance in a cost effective manner. The KEENAN ProMix range delivers a consistent, homogeneous mix and supports lime stabilisation processes, helping to neutralise pathogens, reduce odour and insects, and achieve optimal viscosity for further processing.

We offer a full range of associated services on Keenan mixing solutions. This includes the design and fabrication of supporting structural steelwork, along with the supply and installation of conveyors, hoppers, and other material handling systems. By providing these complete, integrated solutions, we help ensure efficient operation, smooth installation, and long term reliability for every project.

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