March 27, 2026
March 5, 2024
BISON – Super Mobile Mixing Plant for CRF Production.
The ideal solution for projects requiring mobile operations, accurate weighing of multiple aggregates and powders, including cements and fly ash. The Bison 500 plant from SIMEM can precision mix up to 500 tons per hour in continuous production. Bison 250 will mix up to 250 tons per hour in continuous production.
The main unit of the Bison plant can be ready in just a few hours.
BISON’s main unit contains all that is required to successfully weigh, dose, and continuously mix. The unit includes our MDC continuous twin shaft mixer, 1-2 aggregates, powder and liquid dosing devices, loading belt and SIMEM@tic FLOW Software System to manage precise material charging and continuous mixing for the highest quality product result.
Mobile Mixing Unit
- Trailer Mounted Mixing & Batching Unit
- Hydraulically Powered Plant Set-up – No Cranes Required
- Aggregate Hopper 19.6 cy /15m3 Capacity (divider optional)
- Hot-Dipped Galvanized Steel Structure
- SIMEM@tic FLOW Intuitive Automation
- Weight based Cement & Aggregate Metering System
Continuous Mixing
- Adjustable Mixing Retention Time
- MDC Twin shaft continuous mixer
- Electric Drives
- Bolted Mixing Paddles
- Bolted Mixing Arms
- Adjustable Mixing Arm Configuration
- Practical Wear Liner Replacement
Reliable, Guaranteed Performance
- High Accuracy Metering System
- Independent Cement & Fly Ash Weighing & Metering
- Integrated Water & Admixture Metering
Designed For Capability
Bison is equipped with a MDC continuous twin shaft mixer, storage for up to two aggregates, an aggregate feeding belt, powder and metering devices for water and admixtures.
Aggregate Expansion
Aggregate expansion unit transportable with a standard container trailer
- Aggregate extension for 3 additional bins
- Independent aggregate Metering system with load cells for each bin, combined with advanced software control
- Conveyor to Bison
- Hydraulic Operated Galvanized steel panels to contain loading ramps
Mobile Cement Silo
Horizontal mobile cement/powder silo transportable with a standard container trailer
- Each horizontal silo includes an integrated hydraulic system to move an attached screw conveyor from transport to production position.
- Vibrators on inclined section and fluidization system with independent air compressor
- Silo capacity ~ 400 bbl (46 m³/1625 cu.ft.)
Automation
Simem@tic Flow is an easy to use automation with unbeatable accuracy and flexibility for uninterrupted operation.
- Familiar Windows operating environment with SQL database
- Flexible reporting and backup functionality
- Real time flow correction for each material
- PC/PLC based
Service Unit
Service unit enhances the mobility of the Bison package with all the infrastructure components needed for a quick setup installed on a frame that be transported with container trailers.
- Diesel driven generator with the capacity to operate the Bison and all optional units
- One 5,300 gallon (20,000 liter) water tank
- Two admixture tanks, each with a capacity of 530 gallon (2,000 liter)
- Air compressor – screw type with air dryer and tank
- Insulated control room
Specifications
| MODEL | 250 | 500 |
| Aggregate bins (max) | 4 | 4 |
| Mixer – Continuous Twin Shaft | MDC 200 | MDC 500 |
| Capacity (tons/hr) | 250 | 500 |
March 4, 2024
What is Low-Density Cellular Concrete (LDCC)
Low-Density Cellular Concrete (LDCC) is a type of concrete that is lightweight and highly flowable. It is made by mixing cement, water, and preformed foam. The foam creates air cells within the concrete, which increases its volume, reduces its density, and improves its flowability. Mix designs may use fly ash, sand, and other aggregates to achieve specific densities and strengths. LDCC is ideal for a variety of applications due to its properties.
LDCC is produced on-site using a Simem SealCrete containerized grout plant and is pumped into place. A slurry of cement and water is injected with preformed foam and can be pumped substantial distances, making placement easier in confined and/or high-traffic areas.
More info HERE!
February 29, 2024
SealCrete – Low-Density Cellular Concrete Mobile Grout Plant
Lightweight cellular concrete is ideal for projects requiring a robust and non-structural material to fill a continuous void or area by pump or bulk delivery. Simem Underground, with decades of mixing, batching, and grout equipment manufacturing experience, specializes in the global design and supply of LDCC containerized grout plants.
What is Lightweight Cellular Concrete?
Low-Density Cellular Concrete (LDCC) is a type of concrete that is lightweight and highly flowable. It is made by mixing cement, water, and preformed foam. The foam creates air cells within the concrete, which increases its volume, reduces its density, and improves its flowability. Mix designs may use fly ash, sand, and other aggregates to achieve specific densities and strengths. LDCC is ideal for a variety of applications due to its properties.
LDCC is produced on-site using a Simem SealCrete containerized grout plant and is pumped into place. A slurry of cement and water is injected with preformed foam and can be pumped substantial distances, making placement easier in confined and/or high-traffic areas.
LDCC offers many unique advantages over traditional engineered fill, including:
- High Strength-To-Weight Ratio
- Customizable Mix Designs
- No Compaction
- Flowability That Eliminates Voids
- Not Affected By Petroleum-Based Products
- Low Maintenance And Easily Excavated
Features
Automatic Foaming Generator
SealCrete LDCC is equipped with an Automatic Foaming Generator (AFG) that includes digital flow meters for both the liquid and air components. This feature allows for easy and accurate measurement of the components.
Pumping Systems
Pumping system design must consider many factors prior to operation. Matching a pumping solution for a specific project application requires extensive knowledge to ensure a pumping system performs as intended. Simem Underground Solutions, and its decades of experience with long-distance pumping of bi-component grouts, cellular concrete, and hydrated bentonite, designs and assembles complete systems guaranteed to perform. System types incorporate piston, peristaltic, progressive cavity, centrifugal, and air-diaphragm pumps. System come complete with associated power control units, instrumentation, and pipe cleaning assemblies. Systems are prepared for field connection as independent components, skid-mounted, or fully containerized.
Combined Contents
SealCrete LDCC combined contents include a VortiMix Colloidal mixer, a high-pressure cleaning system, agitation tanks, pumps, and full automation. These self-contained units are optimized for easy transport, installation, and modular high-output production versatility.
February 29, 2024
Thank you MINEXCHANGE 2024
Thank you to the Society for Mining, Metallurgy & Exploration Inc. (SME) for organizing another exceptional MineXchange in Phoenix, AZ. Seeing so many mining professionals eager to meet with the Simem Underground team was great. You don’t have to wait until 2025 to continue the conversation. Our team is always available; please reach out at any time HERE!
February 26, 2024
SUPERWASH Mixer Cleaning System
Mixers are treated to a near 200 bar/3,000 psi providing unmatched cleaning leaving minimum residual concrete remains in the mixer tank. Simem exclusively designed orbital high-pressure rotating wash heads are self-retracting and driven by an independent gearbox and electric motor.
Features
A Complete System
- High pressure unit, preassembled in a steel cabinet
- High efficiency water filter
- Two high pressure water pumps
- Water distribution
- Manual washing wand
- MCC power control board
- PLC connected with 3-inch control panel installed on the front door
- “Total stop” function by PLC
- Leak detection system
Specifications
| Model | SW2 | SW4 | SW6 |
|---|---|---|---|
| Rotating Heads | 2 | 4 | 6 |
| Pumps Power kW | 2×11 | 2×11 | 2×11 |
| Water Pressure bar | 200 | 200 | 200 |
January 23, 2024
Colorado School of Mines w/ SIMEM Underground
Simem Underground is proud to share our expertise once again to educate the next generation and equip them with the skills needed to keep the mining industry thriving. Our team will be leading the Annulus Backfill Grouting Lab from July 29th to August 1st, 2024, in Golden, Colorado, USA.
For more info and registration, please visit Colorado School of Mines here: Grouting and Ground Improvement :: Registration – Continuing and Professional Education Services (mines.edu)
The Simem team is always available; please reach out at any time HERE!
August 7, 2023
Simem Underground Teaching at Colorado School of Mines.
We thank the Colorado School of Mines for having Simem Underground Solutions’ own Phil Antunes back again to teach a short course program at the Grouting and Ground Improvement 2023 classes this week. We are proud to give our time to training the next generation with the skills needed to keep advancing our industry!
The Simem team is always available; please reach out at any time HERE!
June 23, 2023
MDC Paste Mixer
Simem has been recognized worldwide for the wide-range development of mixers, specifically designed for mining applications..
The MDC Continuous Flow Paste Mixer builds upon the already well-recognized twin shaft mixing technology of SIMEM.
With protection wear liners, Ni-Hard cast iron paddles, and hydro-dynamic infused design features to reduce wear, the SIMEM MDC Paste mixer provides an optimal result for the production of Paste backfill.
Features
MDC creates a powerful production capability, providing mining companies with an all-in-one paste production system ideal for mine backfill applications.
With its DUAL-PURPOSE DESIGN, the MDC Twin-Shaft Mixer for mine backfill applications addresses paste production environments that may require a material conditioning process before paste mixing.
The MDC Twin-Shaft Mixer for the production of paste backfill can accommodate tailored discharge points to satisfy a variety of paste plant environments.
94% Efficiency – MixerMindTM Check System
Simem MDC Paste mixers are equipped (as standard) with high efficiency planetary type gearboxes with a mechanical efficiency of up to 94%. Integrated oil cooling systems guarantee a proper working temperature which extends gearbox life and reduces maintenance costs. The MixerMind™ system provides complete surveillance of the mixing operation. The system provides service reminders and alerts upon the detection of abnormalities to avoid potential damages to mixer and its components.
Superwash mixer cleaning system
Simem exclusively designed orbital high pressure rotating wash heads are self-retracting and driven by an independent gearbox and electric motor.
Mixers are treated to a near 3,000 psi cleaning, leaving minimum residual concrete remains in the mixer tank.
More info about the SUPERWASH HERE.
Specifications
MDC – Twin-Shaft Continuous Conditioning Mixer &
MDC – Twin-Shaft Continuous Paste Mixer.
- Mixing tank in carbon steel
- Electric drive with belt driven planetary type gearboxes
- Interconnection between the gearboxes for mechanical synchronization of mixing shafts
- Larger models are equipped as a standard with an oil cooling system
- Lateral and bottom tank liners made of wear resistant steel with a hardness of 450 Brinell (AR 450)
- Mixing arms made of steel, bolted to the shafts, with polyurethane covering
- Mixing paddles made of Ni-Hard cast iron, with a hardness of 600 Brinell
- Safety locks on inspection doors, designed to disconnect the mixing motors (requires interconnection in MCC)
- Water distribution pipe with inlet flange
- Automatic greasing system for shaft seals by electrical pump
- Centralized greasing points for parts subject to normal lubrication
- Temperature sensors on drive motors (PTC) and gearboxes (4-20 mA)
- Pre-wiring to junction box
- Two hydraulic-operated cleanout valves
- Hydraulic power pack
*Discharge options for MDC Paste Mixers
- One bottom discharge or two overflow outlets
| Mixer | Capacity (m3) | Throughput (m3/hr) *Based on 2 – 3-minute retention time |
|---|---|---|
| 201 | 2.4 | 50 – 75 |
| 501 | 3.0 | 60 – 90 |
| 750 | 5.0 | 100 – 150 |
| 1000 | 6.5 | 130 – 195 |
| 1500 | 9.0 | 180 – 270 |
| 2500 | 14 | 280 – 420 |
May 3, 2023
Fruta del Norte Paste Plant – Case Study
In five short years, Lundin Gold successfully developed the Fruta del Norte (FDN) gold deposit into a world-class mining operation, the first of its kind in Ecuador. Overcoming several challenges along the way, the first gold production was reached in December 2019 (Lundin Gold Inc 2019), and commercial production was achieved in February 2020 (Lundin Gold Inc 2020). The project has delivered many firsts to Ecuador. The new paste backfill system (Figure 1) is just one example where best-practice principles and state-of-the-art technology were used to meet technical challenges head-on and provide the best long-term solution for the mine.
Paterson & Cooke (P&C) was involved from the beginning and performed the trade-off studies, test work, and engineering design to shepherd the backfill project through to a successful start-up in October 2020. Starting with the paste plant location, it was essential to get the operation as close to the top of the orebody as possible. This meant constructing the plant remotely from the mill but directly over the orebody in order to achieve the best possible backfill recipes at the lowest possible operating cost.
The challenges that were overcome included developing the project in an environmentally sensitive remote rainforest setting; the Rio Manchinaza, which runs through the project site, is a source tributary for the Amazon basin. Likewise, commissioning ran in two phases due to an interruption from the COVID-19 pandemic, but the paste plant was started up successfully in October 2020.
This paper documents the design, construction, and commissioning challenges and achievements associated with implementing Lundin Gold’s FDN paste plant system.
View and Download FULL CASE STUDY HERE.
May 1, 2023
RETC – BOSTON 2023!
The Simem Underground team will have a booth at the 2023 RETC show in Boston, MA! Reserve your spot now.
The Simem team is always available; please reach out at any time HERE!
April 20, 2023
Team Building at SIMEM HQ in Minerbe, Italy!
Teamwork makes the dream work! Together, we reach the common goal at SIMEM: to design, engineer, and produce the highest quality mixers, batch plants, and equipment solutions for the global concrete construction marketplace.
The Simem team is always available; please reach out at any time HERE!
April 6, 2023
See you at EXPOMIN 2023!
The Simem Underground team is heading to the largest mining show in Latin America. ExpoMin is a space that promotes the transfer of knowledge, experiences, and especially the offer of technologies that contribute to innovation and increase the productivity of the mining processes.
The Simem team is always available; please reach out at any time HERE!
April 24-27, 2023 Parque Fisa, Santiago – Chile
More info and registration here:
April 4, 2023
60 years of SIMEM – HAPPY BIRTHDAY TO US!!
This past month we celebrated 60 years of perfect concrete. Members from all divisions of the company gathered for this momentous occasion. The Simem Underground team spent two weeks at the Simem headquarters in Minerbe, Italy, working with the engineering department on many exciting new products designed to be the best in the market and provide the highest quality for our clients!
The Simem team is always available; please reach out at any time HERE!
March 7, 2023
SEE YOU AT THE 2023 CONEXPO-CON/AGG
The next SIMEM UNDERGROUND world tour stop is Las Vegas for CONEXPO-CON/AGG March 14-18th! Make plans to stop by and see the SIMEM team at Booth C33057 at THE LARGEST CONSTRUCTION SHOW IN NORTH AMERICA!
CONEXPO – Mar 14 -18, 2023 – Las Vegas, NV
More info here: CONEXPO
If you would like to meet up with us, please reach out at any time HERE!
February 28, 2023
Thank You Minexchange 2023!
The Society for Mining, Metallurgy & Exploration Inc. (SME)’s 2023 Minexchange has wrapped up! A lot has changed in mining since the gold rush days of early Colorado in the 1890s, which drew cattlemen miners and silver barons who built the west. One thing that has not changed is the Buckhorn Exchange, Denver’s oldest restaurant. The Simem team went full circle from discussing exciting advances and important initiatives for a sustainable future in mining at Minexchange to eating at the same tables in the same room as the founders of our industry did so many years ago.
If you would like to meet up with us, please reach out at any time HERE!
January 5, 2023
2023 Show Announcements
We are preparing for a busy 2023 and kicking off the new year with two must-attend trade shows. We hope to see you all at our booths.
MINEXCHANGE – Feb 26 – March 1, 2023 – Denver, CO
CONEXPO – Mar 14 -18, 2023 – Las Vegas, NV
EXPOMIN – Apr 24 – 28, 2023 – Santiago, Chile
More info here:
If you would like to meet up with us, please reach out at any time HERE!
October 31, 2022
Cutting-Edge Conference – Long Beach, CA
We are staying on the cutting edge of modern technology! The Simem Underground team will attend this year’s Cutting-Edge Conference Nov 14th – 16th in sunny Long Beach, CA. If you would like to meet up with us, please reach out at any time HERE!
About the conference:
The annual Cutting-Edge Conference focuses on innovation and practical knowledge. Examines the latest advances in tunneling technology, its methodology, and how they can be harnessed to assist major upcoming underground projects. This dynamic event connects industry professionals leading the way in technology and process development. More info here.
September 16, 2022
Simem’s 6S series for lean approach in concrete production! Part 2, Sort!
At Simem, we don’t only engineer and produce industry-leading equipment for concrete producers. We also like to educate and guide our clients to keep their plants running smoothly for years to come with increased efficiency and productivity while reducing waste and eliminating downtown to maximize production! To help achieve this, we keep the 6S method front and center. So what is 6S, a system that aims to promote and sustain high levels of productivity and safety throughout an organization.
Today, as we continue with the six-part series. We want to share an article from the U.S. Army that focuses on SORT – Get rid of what’s unnecessary! Do you know where all the tools and components workers use are located? Which ones do you not use? The fundamental process of the 6S, sorting, is specifically designed to find out all this information.
We will continue our series focusing on each aspect of the 6S; until next time, respect the workplace and employees and create a safe place for all!
READ – 6S: A foundation for production success
The Simem team is always available; please reach out at any time HERE!
August 5, 2022
Simem’s 6S series for lean approach in concrete production! Part 1, SAFTEY!
At Simem, we don’t only engineer and produce industry-leading equipment for concrete producers. We also like to educate and guide our clients to keep their plants running smoothly for years to come with increased efficiency and productivity while reducing waste and eliminating downtown to maximize production!
To help achieve this, we keep the 6S method front and center. What is 6S, a system that aims to promote and sustain high levels of productivity and safety throughout an organization. So today, as we start the six-part series. First, we want to share an article from our friends at the NPCA (A fantastic resource) that focuses on one of the most critical 6S categories – SAFETY! Benefits include increased productivity, reduced defects, making accidents less likely, and lowered costs.
We will continue our series focusing on each aspect of the 6S; until next time, respect the workplace and employees and create a safe place for all!
READ – Keeping Cement Silos Safe and Operational
The Simem team is always available; please reach out at any time HERE!
