A CONSTMACH stationary crushing plant is a complete, project-engineered crushing and screening installation rather than a single machine. This section explains how a plant is configured, what it produces, the industries it serves, how it is delivered and how it compares with a mobile plant.
What Is a Stationary Crushing Plant?
A stationary crushing plant is a permanent, fixed installation that takes run-of-quarry rock and turns it into sized aggregate products through a sequence of crushing and screening stages. It integrates several machine types into one continuous flow:
Vibrating grizzly feeder for primary feed and scalping
Primary crusher (jaw or primary impact, by feed type)
Secondary and optional tertiary crushers
Vibrating screens for sizing and closed-circuit return
Conveyors, hoppers and stockpile arrangements
How Is a Plant Configured?
Configuration is defined per project according to the required capacity (typically 100-1,000 t/h), the type, hardness and abrasiveness of the feed, the maximum feed size and the number and sizes of final fractions. CONSTMACH application engineering confirms feed suitability and selects the crusher types, and the layout is designed in 3D before manufacture.
What Products and Materials Are Involved?
Feed materials include limestone, granite, basalt, dolomite and mining ore. Output is sized per project and commonly covers concrete and asphalt aggregate grades, sub-base and, with tertiary equipment, manufactured sand. The proportion of each fraction is set during design so the plant matches the producer's market, avoiding both unsold surplus sizes and shortfalls in the most-needed grades.
Which Industries Use Stationary Plants?
Aggregate quarries and construction material producers
Concrete and asphalt production
Mining and mineral processing
Major infrastructure and road projects
Why Is the Crusher Selection So Important?
The primary crusher choice shapes the entire plant. For hard, abrasive feed such as granite or basalt, a jaw crusher is used as the primary because its compression action and replaceable manganese jaw plates handle high-strength rock at low wear cost. For medium-hardness limestone, a primary impact crusher is often preferred because impact crushing delivers a cubical product and a high reduction ratio, which can reduce or remove the need for a separate secondary stage. Selecting the wrong primary type for the feed leads to excessive wear-part cost and poor product shape, which is why CONSTMACH application engineering confirms feed suitability before configuration.
How Is a Plant Delivered and Maintained?
Scope of supply includes civil works drawings, foundations, conveyor towers, stockpile pads and dust suppression provisions at order. Delivery typically spans 6 to 12 months from order to first production, covering engineering, manufacturing, civil works, erection and commissioning. Wear-part management follows the individual machines in the line, principally the manganese steel jaw plates or impact blow bars in the crushers and the screen media, replaced on planned schedules. The PLC automation system supports monitoring of the line so faults and bottlenecks can be identified during operation.
Stationary Versus Mobile Plant
A stationary plant is a fixed installation suited to long-term production at a single site, offering high capacity, integrated automation and the lowest cost per tonne over time. A mobile plant trades some of that capacity and integration for the ability to relocate between sites. The stationary plant is the appropriate choice where the production location is fixed for the life of the operation, where capacity requirements are high, or where a wide range of final fractions must be produced in closed circuit.
