Continuous Mixer
Continuous, uniform mixing and blending of liquids and dry solids.
S. Howes Paddle Mixers (Pug Mills) provide continuous, uniform mixing and blending of liquids and dry ingredients. The mixing action of the patented adjustable solid or loop-type paddles on the agitator shaft is gentle and free-flowing /non-plugging, coating products without beating the ingredients to ensure uniform absorption of liquids throughout the mix.
Paddle mixers are available in Simplex (single agitator shaft) and Duplex (twin agitator shaft) models. Capacities range from 1 to 300 tons per hour; custom designs for higher capacities are also available.
S. Howes’ sales and engineering department can recommend a standard design for your application or work with you and your team to develop a custom design, depending on your processing requirements.
Let our engineers build a custom continuous mixer.
General Features & Benefits
- Heavy-duty construction.
- Hanger bearing required over 12 ft.
- Independently adjustable bolted paddles.
- Single shaft (simplex) and dual shaft (duplex) models.
- Duplex models feature intermeshing paddles with a single drive.
- Direct drive or shaft mounted gear reducer & belt drive.
- Self aligning bearings.
- Carbon steel, stainless steel or other alloys.
Simplex Mixers
Simplex, or single shaft, continuous mixers include 5 standard models ranging from 5 to 12 tons per hour nominal capacity with larger custom models available.
Duplex, or dual shaft, continuous mixers include 10 standard models ranging from 1 to 300 tons per hour nominal capacity with larger custom models available.
Duplex Mixers
Continuous Mixers (Pug Mills)
Suitable for mixing high viscous pastes or free flowing slurries, plastic pellets, cement, pigments, mud, and many more applications. The paddles lift and direct material to produce a gentle but efficient mixing action. Mixing time is variable due to the adjustable paddle design but is typically less than a minute with good coefficient variance and a low degree of particle shear.
Sample Applications
Continuous paddle mixers are ideal for adding liquids to dry materials to make slurries and semi-liquid mixtures and are suitable for processing a wide variety of products including:
- Biosludge
- Animal Feed
- Salt Coating
- Food Products
- Seeds
- Spent Grain
- Gravel & Asphalt
- Crushed Limestone
- Fertilizer
- Lime
- Minerals
- Bentonite
- Corn Feed
- Soybeans
- Rubber & Plastic
- Pellets
- Paper & Wood Products
- Molasses
- Chemicals
- Powders & Slurries
- Frac Sand
- Drill Tailings
- Powdered Detergent
- Fly Ash
Options & Accessories
Paddle Options
- Solid type
- Loop type
- Abrasion-resistant
Liquid Addition
- Spray balls, bars & nozzles
- Drip manifold
- Inlet pipes & valves
Thermal Options
- Heating & Cooling jackets
- Integral or bolt-on
- ASME “U” stamp
Access Ports
- Sanitary clamp fittings
- Inspection doors
- Side access & probe ports
Test Lab & Innovation Center
Your Material Product. Our Thermal Processing Equipment.
Make sure your new process equipment delivers your desired final material requirements.
Lab Testing
Leverage the CPEG Innovation Center and expertise in process engineering to test material product prior to the design or purchase of bulk solids and material handling equipment.
Testing With Rental Units
When material testing in the Innovation Center is not feasible, S. Howes provides rental equipment that can be shipped directly to your site for reliable testing of powder and bulk solids materials.
FAQs for Continuous Paddle Mixers
What is a pug mill mixer?
A pug mill is a continuous mixer that blends materials using rotating paddles or shafts while material flows steadily through the machine.
When is a continuous mixer preferred over a batch mixer?
Continuous mixers are ideal for high-throughput processes in which materials must be blended continuously rather than in individual batches.
What is the difference between a pug mill, paddle mixer, and continuous mixer?
A pug mill is a type of paddle mixer designed for continuous processing. It uses rotating shafts with paddles to mix materials as they move steadily through the machine. While paddle mixers can operate in either batch or continuous modes, pug mills are typically configured specifically for continuous mixing applications where consistent material flow and high throughput are required.
What industries use pug mill mixers?
They are commonly used in minerals processing, chemicals, agriculture, waste treatment, and construction materials.
What materials can pug mills process?
They can handle powders, aggregates, slurries, and bulk solids requiring uniform mixing and consistent output.
Can pug mill mixers be integrated into automated production lines?
Yes. Continuous mixers can be integrated with feeders, conveyors, and downstream processing equipment to support automated production systems.