A stone crushing plant in Mongolia should be designed around the actual material and site conditions. Rock properties determine the crushing process, while low-temperature starting, dust exposure, transport distance and maintenance access affect how the equipment should be configured and supported.
These questions are part of the technical discussions at MiningWeek and MinePro 2026, held September 16-18 at Taij Khairkhan in Nalaikh District, Ulaanbaatar. Leimeng Group is exhibiting at Booth 405.
A suitable plant design begins with the process requirement. Climate and location are important, but they cannot replace material analysis or production planning.
Build the Process Around the Material
Coal, copper ore, iron ore, granite and limestone place different demands on crushers and vibrating screens.
Maximum feed size affects the opening of the primary crusher. Hardness and abrasiveness influence crusher type, chamber selection, liner material and expected wear. Moisture and clay can affect feeding, screening and transfer points.
The required product is equally important.
A mining operation feeding a downstream mineral-processing plant may need controlled crusher discharge. An aggregate producer may need several saleable fractions and improved particle shape.
Two projects with the same hourly capacity can therefore require very different crushing and screening equipment.
Before equipment selection, confirm:
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Raw material
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Maximum feed size
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Feed-size distribution
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Hardness and abrasiveness
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Moisture and clay content
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Required capacity
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Finished-product sizes
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Intended use of the finished material
Match the Jaw Crusher to the Feed
A jaw crusher is commonly used for primary crushing of large and irregular feed material.
Selection should consider more than the feed opening. The supplier should also review:
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Maximum permitted lump size
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Required discharge setting
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Expected discharge grading
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Frame and bearing design
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Jaw-plate selection
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Replacement access
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Connection with the feeder and discharge conveyor
The vibrating feeder must deliver material steadily. If the feed surges, the jaw crusher may alternate between underloading and overloading. Unstable discharge can then affect the cone crusher and vibrating screen downstream.
Select Secondary Crushing by Material and Product
Cone crushers are widely used for secondary and tertiary crushing of hard or abrasive rock. Compression crushing generally provides a suitable wear pattern for this type of duty.
Impact crushers can be effective for less abrasive feed and may be selected when aggregate shape is an important requirement.
The supplier should explain the selection rather than recommend a machine from the capacity figure alone.
For a cone crusher proposal, ask for:
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Feed grading
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Selected crushing chamber
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Closed-side setting
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Motor duty
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Expected product curve
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Liner type
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Hydraulic and lubrication configuration
These assumptions show whether the crusher has been selected for the real feed and whether it can work with the downstream screen.
Prepare for Low Temperature Operation
Low temperatures can increase lubricant viscosity, slow hydraulic response and affect batteries, seals and elastomer components.
The project team should provide the expected minimum and maximum ambient temperatures. The equipment manufacturer can then evaluate approved lubricants, heaters, insulation and start-up procedures.
Site teams should avoid adding unapproved heaters or replacing the specified oil with a thinner grade. Lubrication and hydraulic systems are designed around defined viscosity ranges.
Any winter configuration should be documented and covered during commissioning and operator training.
Temperature changes can also create condensation in electrical cabinets and storage areas. Cable entries, cabinet protection and ventilation should be selected for the conditions at the specific site.
Control Dust at the Source
Dry and windy working conditions can place heavy dust loads on:
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Air filters
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Cooling systems
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Electrical cabinets
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Lubrication systems
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Bearings
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Transfer points
Dust control should begin at the hopper, crusher discharge and conveyor transfer points.
Depending on the material and water availability, the project may use enclosures, dust extraction or water suppression. The final arrangement should provide access for inspection and cleaning.
Maintenance intervals for filters, breathers, seals and coolers should be adjusted after operators observe the real dust conditions. A general manual provides a starting point, but site data should determine the long-term schedule.
Choose Between Fixed and Tracked Mobile Equipment
A fixed stone crushing plant normally suits a long-life project with stable reserves, established infrastructure and enough space for foundations, conveyors and stockpiles.
A tracked mobile crusher can be useful when:
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The crushing face moves regularly
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The project has several operating areas
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Permanent civil work must be reduced
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Equipment deployment time is important
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The production period at each site is limited
Tracked mobile equipment still requires suitable ground, safe travel routes, feed coordination and maintenance space. Long-distance relocation normally requires separate transport equipment.
A modular crushing plant may be considered when the project wants to reduce permanent construction while retaining a conventional process layout.
Project duration, relocation frequency, road access and local lifting capacity should guide the choice.
Size the Vibrating Screen for the Real Feed
A vibrating screen must handle the grading produced by the crusher, not only the stated plant capacity.
Moisture, near-size particles and the number of finished products can reduce effective screening performance. When qualified material returns to the crusher, recirculating load increases without improving saleable output.
Screen selection should consider:
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Crusher discharge grading
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Screen opening sizes
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Number of decks
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Number of finished products
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Material moisture
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Bulk density
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Required screening efficiency
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Peak feed rate
Ask the supplier to explain how the screening area, deck arrangement and recirculating load were determined.
Plan Spare Parts for a Remote Site
Remote-site maintenance depends heavily on preparation.
Spare parts should be divided into three groups:
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Wear parts that are consumed during normal production
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Routine service parts used during scheduled maintenance
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Critical parts whose failure may stop the plant
Stock levels should be based on expected consumption, supplier lead time and the production cost of running out.
The first equipment shipment should include clear part numbers, storage instructions and lifting information. Jaw plates, cone crusher liners, screen media, belts, filters and lubricants require different storage conditions.
The parts list should also be linked to the exact equipment model and serial number. This reduces the risk of ordering a component that does not match the installed configuration.
Define the Supplier Responsibility
For a complete crushing and screening project, the project owner and supplier should agree on the responsibility for:
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Process design
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Plant layout
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Civil engineering
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Foundations
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Electrical systems
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Local installation labour
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Installation supervision
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Commissioning
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Operator training
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Performance testing
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Operation and maintenance
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Spare-parts supply
Mining EPC+O services can cover engineering, procurement, construction and operation, but the exact scope should be written into the contract.
A clear division of responsibility helps the equipment supplier, local contractor and project owner work from the same project assumptions.
What to Bring to Booth 405
The first discussion can begin before every technical detail has been completed.
Useful project information includes:
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Raw material and test data
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Maximum feed size
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Feed-size distribution
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Required capacity
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Operating schedule
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Finished-product sizes
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Expected temperature range
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Dust and moisture conditions
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Project location
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Road access
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Available power and water
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Existing process flow for an upgrade
Leimeng Group supplies jaw crushers, cone crushers, impact crushers, vibrating screens, feeders, conveyors, sand-making equipment and washing equipment.
Fixed, modular and tracked mobile crushing configurations can be developed according to the material, production target and site conditions.
Visit Leimeng Group at Booth 405 during MiningWeek and MinePro 2026, September 16-18, at Taij Khairkhan in Nalaikh District, Ulaanbaatar.
If you cannot attend, send your project information through www.lmcrusher.com. A useful initial proposal should record which project facts have been confirmed and which assumptions still require verification.
Frequently Asked Questions
Is a mobile crusher always better for a remote mine?
No. Mobile equipment is most useful when relocation provides a clear operational benefit. A fixed or modular plant may be more suitable for a long-life project with stable infrastructure and continuous production.
Does a cold climate require a different crusher?
The crushing principle may remain the same, but lubricants, hydraulic systems, electrical components, start-up procedures and other specifications may require a documented low-temperature configuration.
Which spare parts should be stored at the site?
Store regularly consumed wear parts and routine service parts. Critical components should be selected according to supplier lead time and the production consequence of a failure.
Can equipment be selected from capacity alone?
No. The same capacity can require different equipment when feed size, abrasiveness, product specifications, moisture and operating conditions are different.
https://www.lmcrusher.com/
GUANGDONG LEIMENG INTELLIGENT EQUIPMENT GROUP CO.,LTD.