What Site Data Should Buyers Send Before Sizing Portable Crushers and Screening Equipment?

Direct Answer: Before sizing portable crushers and screening equipment, buyers should send more than a tons-per-hour target. Suppliers need project duration, number of sites, relocation frequency, feed gradation, moisture, target products, screen cuts, access-road limits, terrain, available footprint, power or fuel conditions, dust/water constraints, module scope and setup responsibilities. Without the same data, competing quotations are not directly comparable.

Portable crushing and screening is attractive when a contractor needs to process material close to the quarry face, move between temporary sites, or reduce permanent civil work. But “portable” is not a single equipment specification. One supplier may quote only a mobile crusher, another may include a feeder and screen, and a third may price a complete train with conveyors, controls and commissioning. The first procurement task is therefore to define the operating pattern before asking for machine size.

Ruilong supplies crushers, screens, feeders, aggregate-production equipment and project engineering support. Its Mobile Crusher is positioned for quarry faces, temporary sites and contractor-operated aggregate production, making it a relevant starting point for this type of RFQ.

How Many Sites Will the Equipment Serve?

A portable plant that moves twice a year is a different project from one that relocates every few weeks. The buyer should state the expected project duration, number of sites, average operating period at each location, relocation frequency and required operating hours after setup.

These details influence more than transport. They affect how much civil work is practical, whether stockpile conveyors are repeatedly reconfigured, how power is connected, how much time can be spent on leveling and commissioning, and how much spare-parts inventory must travel with the equipment.

Project Pattern	Buyer Input	Why It Changes the Equipment Scope
Single temporary site	Project duration and final demobilization date	May justify a portable arrangement without frequent relocation features.
Multiple contract sites	Number of moves per year and expected travel distance	Transport and setup effort become part of operating cost.
Quarry-face movement	Relocation distance, bench access and terrain	Mobility method and feeder arrangement become more important.
Short campaigns	Required production hours between moves	Setup time can consume a large share of available production time.

What Feed Information Is Needed Before Crusher Sizing?

Portable equipment does not remove the need for material characterization. In fact, changing sites can increase variability because each source may have different stone size, moisture, clay, contaminants and hardness.

For each expected feed source, provide:

• material type;
• maximum normal feed size;
• full feed gradation if available;
• moisture range and clay content;
• hardness or abrasiveness information;
• bulk density;
• known tramp metal, soil or other contaminants;
• how the material will be excavated and delivered to the feeder.

For projects that require a separate primary stage, Ruilong’s Jaw Crusher is one of the available crushing options. Whether it belongs in a portable package depends on the actual feed and product requirements rather than on the word “mobile.”

Why Are Finished Products and Screen Cuts as Important as Feed Tonnage?

A request for 200, 300 or 500 tons per hour means little unless the supplier knows what percentage of the feed must become each finished product. A portable line producing one coarse road-base product is a different plant from a circuit producing several screened fractions with recirculation.

The buyer should specify target product sizes, allowable oversize, fines limits, number of final fractions and which material returns to the crusher. If the same plant will serve several sites with different product requirements, include each product recipe.

Ruilong’s Vibrating Screen is designed for final aggregate classification and closed-circuit crushing lines, so screen cuts need to be part of the same sizing discussion as the crusher.

How Should Site Access and Transport Limits Be Documented?

Portable equipment can still be difficult to move if the access route is narrow, steep, soft, height-restricted or unsuitable for the transport configuration. Before the supplier finalizes the package, send route and site constraints rather than assuming standard transport conditions.

Useful inputs include:

• access-road width and turning space;
• bridge, tunnel or overhead-clearance limits;
• road gradient and surface condition;
• maximum transport weight or axle restrictions where known;
• available crane or lifting support;
• site entrance dimensions;
• working-platform size and ground condition;
• distance between crushing area and product stockpiles.

If these data are missing, two suppliers may quote different mobility assumptions and appear to have very different prices even though they are not proposing the same relocation method.

What Site Layout Data Helps Avoid Rework After Delivery?

A portable plant still needs room for material flow. Buyers should send a simple site sketch showing the feed point, truck movement, crusher location, screen location, conveyors, product stockpiles, electrical or fuel access, drainage, dust-control area and maintenance access.

This does not need to be a final civil drawing. A dimensioned sketch with photos is enough to expose obvious conflicts before the quotation. Ruilong’s Plant Design Support page describes process planning, equipment selection and layout engineering support for crushing and screening operations, which is especially relevant when the portable modules must fit a constrained work area.

Why Should Power, Fuel, Water and Dust Control Be Defined Early?

Portable equipment is often purchased for sites with limited infrastructure. Power supply, generator use, fuel logistics, water availability and dust-control requirements can therefore affect the plant scope as much as the crusher model.

Before quotation, state:

• available voltage and frequency if grid power will be used;
• whether the project expects diesel, generator or electric operation;
• distance from the power source to the equipment area;
• water availability for dust suppression or washing if required;
• site dust-control expectations;
• noise or working-hour restrictions known to the buyer;
• local permitting constraints that affect equipment placement or operation.

Do not ask the supplier to guarantee compliance with an unspecified local permit. Instead, provide the applicable site constraints and request the equipment data needed by the buyer’s local engineering or permitting team.

How Should the Buyer Define the Portable Module Scope?

One of the largest quotation differences comes from scope, not machine price. A portable crushing and screening offer may include different combinations of feeder, crusher, screen, conveyors, magnet, stockpile system, electrical controls, walkways, spares and commissioning.

Module	Buyer Should Confirm	Why Quote Comparisons Fail
Feeder	Feed hopper, feeder type and interface with excavator/loader	Some quotations start at the crusher inlet and exclude feed handling.
Primary crusher	Crusher type, feed envelope and product role	Different suppliers may use different crushing stages.
Screen	Number of decks, cut sizes and recirculation	A screen-only price comparison ignores the actual product plan.
Conveyors	Transfer, return and stockpile conveyor scope	Short conveyors or missing stockpile units shift cost to site.
Controls	Interlocks, start/stop sequence and remote/local control expectations	Integrated automation levels may differ.
Spares / service	Commissioning, startup spares and wear-parts package	Initial price may exclude operating essentials.

How Should Setup Responsibility Be Split Between Supplier and Contractor?

Portable does not mean “arrives and produces immediately.” The project still needs unloading, positioning, leveling, electrical or fuel connection, conveyor setup, guarding checks, commissioning and product verification.

The quotation should state who provides each activity. If the contractor handles local setup, ask the supplier for the required foundations or pads, connection points, lifting information, utilities and startup sequence. If the supplier provides installation or commissioning support, define whether that support is on-site or remote and what the buyer must prepare before arrival.

Scenario: The Same TPH Request Produces Three Different Portable Plants

Representative scenario — not a claimed customer case.

Business Background: A road contractor needs a portable crushing and screening line for three temporary quarry sites and asks several suppliers for a 250 TPH system.

Problem: The offers cannot be compared. One includes a mobile crusher only, one includes crusher plus screen, and another includes feeder, crusher, screen, return conveyor, stockpile conveyors and controls. Transport dimensions and setup assumptions also differ.

Cause: The buyer gave only throughput and final product size. Relocation frequency, feed variation, screen cuts, site access, module scope and utilities were not defined.

Solution: The contractor issues a common site-data sheet covering all three sites, defines finished products and recirculation, identifies road and footprint constraints, and asks each supplier to complete the same module-scope matrix.

Buyer Decision Value: The revised quotation makes equipment, transport, setup and operating scope visible, so the contractor can compare total project fit rather than headline machine price.

What Site Data Should Be Included in the RFQ Package?

RFQ Section	Information to Send
Project pattern	Duration, number of sites, relocation frequency and operating hours
Feed	Material, maximum size, gradation, moisture, clay, hardness/abrasiveness and density
Products	Finished sizes, screen cuts, fines limits, product quantities and recirculation
Access	Road width, gradients, clearances, transport limits and site entrance
Site layout	Available footprint, terrain, feed point, stockpiles and working clearances
Utilities	Power/fuel plan, water, dust control and known local operating constraints
Module scope	Feeder, crusher, screen, conveyors, controls, spares and mobility method
Setup	Supplier versus buyer responsibility for positioning, connection, commissioning and training

Frequently Asked Questions

Is tons per hour enough to size portable crushing equipment?

No. TPH must be linked to feed gradation, moisture, material properties, target products, screen cuts, operating hours and site constraints.

Why does relocation frequency affect equipment selection?

Frequent moves make transport configuration, setup time, module count and civil-work requirements more important to total project cost.

Should the screen be selected after the crusher?

The crusher and screen should be sized from the same product balance. Final fractions, screen cuts and recirculation influence both machines.

What site information matters most for transport?

Road width, turning radius, gradient, clearances, bridge or axle limits, entrance dimensions, terrain and available unloading/lifting support are key starting points.

Do portable plants eliminate civil work?

They can reduce permanent civil work in many projects, but a stable working platform, access, utilities, drainage, stockpile space and setup area may still be required.

How should buyers compare portable equipment quotations?

Use one module-scope table covering feeder, crusher, screen, conveyors, controls, transport, setup, spares and commissioning, then compare all suppliers against the same feed and product basis.

What should be sent to Ruilong before requesting a final configuration?

Send project duration, relocation plan, feed data, target products, site access, layout, utilities, local constraints, module scope and setup responsibilities.

Send the Site Data Before Asking for the Mobile Plant Price

For a comparable portable-equipment quotation, send the project pattern, material and feed gradation, target products, screen cuts, capacity basis, access-road restrictions, site layout, power/fuel plan, dust/water conditions, module scope and relocation schedule through Send Project Data. Ruilong can review the equipment modules and overall process around the stated site conditions rather than quoting an isolated crusher from a single TPH number.