It is a customized system designed to arrange all the aggregates and cement in a planetary mixer, responsible for the homogeneous mixing of the components and feeding the equipment. It is typically composed of aggregate silos, weighing conveyor, weighing system, conveyor belt, cement silo (or sack-breaker silo), cement scale, cement weighing system, screw conveyor, planetary mixer, and its platform. The system includes an Automation unit responsible for the automatic control of all functions of the plant. Its electrical, hydraulic, and pneumatic peripherals are from well-known suppliers in the market, with a broad network of national and international distribution.

Aggregate Silo

Storage unit for solid aggregates

• Capacity: 5, 10, 15, 20, or 25 m³ per bin;
• Made of carbon steel plates and profiles;
• Equipped with a vibration system for fine aggregates, preventing compaction and improving flow;
• Pneumatic cylinders with fixed valves, eliminating the need for a panel; the proximity of these cylinders allows faster opening and closing of the aggregate silo gates.

Aggregate Weighing System

System 1 – Conventional Weighing

Weighing conveyor system composed of:

• 4 “samel” load cells for 2,000 kg/5,000 kg;
• 1 or 2 junction cups;
• 1 weighing indicator for the panel.

System 2 – Individual Weighing

Composed of 0.7 m³ silos (one for each aggregate bin), each with four “z” load cells, with a capacity of 500 kg each (individual weighing system).

• Faster weighing and distribution of aggregates to equipment, as there will always be a weighed load of aggregates waiting for a PLC signal;
• Carbon steel plate structure for the bins;
• Pneumatic cylinders with fixed valves, eliminating the need for a panel; the proximity of these cylinders allows faster opening and closing of the aggregate silo gates;
• 0.25 hp vibrators.

Conveyor Belt

Belt for transferring raw materials and concrete within the dosing and feeding system.

• Chassis made of “U” beam carbon steel and silo;
• Reinforcements on the “U” beam chassis;
• Double canvas belt, 20 or 24 cm wide;
• Powered by a motor and reducer.

Cement Silo

Capacity for 50, 70, or 75 m³ (70, 98, and 105 tons, respectively) density = 1,400 kg/m³.

• Carbon steel plate body;
• Pneumatic filter bag system;
• Ladder with guardrails on the side (from the floor to the upper silo area);
• Upper guardrail;
• Supply pipe to the silo base;
• Additional installations at the client’s expense.

Sack-Breaker Cement Silo

A more economical system recommended for small installations (or where bulk cement is unavailable). In this system, the sack is manually opened by the operator.

Weighing System Conveyor

Belt for transporting aggregates in the weighing system, with reversible operation capability.

• Chassis made of “U” beam;
• Reinforcements on the “U” beam chassis;
• Double belt, 20 or 24 cm wide;
• Powered by a motor and reducer.

Cement Scale

• Capacity of 100 kg/180 kg/300 kg/500 kg (respectively used in MP-7.5, MP-20, MP-50, MP-60 mixers);
• Opening and closing system through a pneumatically operated butterfly valve.
• Weighing system composed of:
  • 3 “Z” load cells
  • 1 junction box
  • 1 weighing indicator for the panel.

Screw Conveyor

Cement conveyor type auger. Designed to transfer cement from the silo to the mixer scale.

• Powered by a motor and reducer
• Made of carbon steel tube 6″ x 1/4″ / 8″ x 1/4″
• Carbon steel auger 120 mm / 190 mm
• Inspection hatch near the reducer bearing;
• Support column made of folded steel plate.

Automation – Central Electrical Panel

Composed of an electrical panel housing all the electrical components (circuit breakers, thermal relays, and contactors for motor protection). Equipped with a PLC that controls the entire plant operation, aggregate and cement weighing, water dosing, and equipment operation, as well as storing production data such as batch recipes. The panel also includes interfaces for PLC actuators, water dosing, cement, and aggregate weighing cells.

Water Dosing System

System for automatically dosing water for mixing and concrete production, equipped with:

• Multi-jet flow meter with signal emission to the PLC, threaded connections, and a bronze body with plastic engineering internals, nominal diameter of 1.1/2″;
• 1.5 hp centrifugal pump with an estimated flow of up to 10,000 l/h;
• 1.1/2″ piston-type electro-pneumatic valve made of bronze, with stainless steel stem and Teflon seals, electrically controlled by the PLC;
• Control and totalizing module with volume calibration function and LCD display.

Additive Dosing System

System for automatically dosing additives for mixing and concrete production, equipped with:

• Multi-jet flow meter with signal emission to the PLC, threaded connections, and a bronze body with plastic engineering internals, nominal diameter of 1″;
• 0.5 hp centrifugal pump with an estimated flow of up to 1,000 l/h;
• Piston-type electro-pneumatic valve made of bronze, with stainless steel stem and Teflon seals, electrically controlled by the PLC;
• Control and totalizing module with volume calibration function and LCD display.

Planetary Mixer

Equipment for concrete production, designed with a planetary system for more homogeneous mixing. It features a paddle system that rotates around a central axis and a paddle system that scrapes the concrete from the mixer walls. The mixer is lined with interchangeable carbon steel plates on the sides and bottom, and its paddles are made of white cast iron.

Optional Features

• Feeding conveyor for aggregate silos
• Supervisory System – Management software that provides:
  • Summary screens
  • Alarms and alerts
  • Histories
  • Reports