Editorial Technical Reference

RAP Storage Bin

This page explains how RAP Storage Bin is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A storage container designed to hold and discharge Recycled Asphalt Pavement (RAP) material within an asphalt mixing plant system.

Product Specifications

Technical details and manufacturing context for RAP Storage Bin

Definition
The RAP Storage Bin is a critical component of the Recycled Asphalt Pavement (RAP) System in an asphalt mixing plant. Its primary role is to receive, store, and accurately meter out pre-processed RAP material for controlled introduction into the asphalt mixing process. It ensures a consistent and reliable supply of recycled material, facilitating the production of hot mix asphalt with a specified percentage of RAP. The bin is typically constructed from structural steel (e.g., Q235B) and may feature abrasion-resistant steel plate liners to withstand wear from RAP. It is designed to operate within a temperature range of 120–180°C, with insulation thickness of 80–150 mm and heating power of 50–150 kW to maintain material temperature. Storage capacity ranges from 50 to 200 tonnes, and discharge rate from 100 to 300 t/h, with discharge accuracy of ±1% to ensure correct RAP proportioning. The bin is equipped with a discharge mechanism such as a belt feeder, chain conveyor, or vibratory feeder, controlled to release a precise metered flow. Level sensors or load cells monitor inventory and feed rate. Drive power for discharge gate and agitator is 7.5–22 kW. Electrical supply is three-phase, 380–690 V AC, 50–60 Hz, per IEC 60038. The bin's weight ranges from 15 to 45 tonnes, and footprint from 20 to 60 m². These values are directory reference ranges; actual specifications must be confirmed with the legal manufacturer or supplier for specific models and applications. The bin is a component, not a standalone machine, and its performance depends on integration with the plant's conveyor and mixing systems. Verification questions should address material compatibility, temperature control accuracy (±5°C), and compliance with relevant standards. Maintenance signals include abnormal wear of liners, inconsistent discharge, or temperature deviations. Failure boundaries include structural fatigue, heating element failure, or control system malfunction.
Working Principle
Pre-processed RAP material is loaded into the bin via conveyor or loader. The bin is typically equipped with a discharge mechanism, such as a belt feeder, chain conveyor, or vibratory feeder, located at the bottom. This mechanism is controlled to release a precise, metered flow of RAP material onto a conveyor system that transports it to the plant's mixer or drum. Level sensors or load cells may be used to monitor inventory and control the feed rate. The bin is insulated and heated to maintain material temperature within the specified range, ensuring proper flow and preventing binder aging. Discharge accuracy is maintained through control systems that adjust the feeder speed based on feedback from sensors. The bin operates as part of a larger system, and its discharge rate must match the mixer output to avoid bottlenecks. Proper operation requires calibration of sensors and regular inspection of mechanical components.
Common Materials
Structural Steel (e.g., Q235, Q345), Abrasion-Resistant Steel Plate (for liners)
Technical Parameters
ParameterTypical rangeNotes & selection driver
Storage Capacity50–200 tDetermines batch size and plant throughput
Discharge Rate100–300 t/hMatches mixer output to avoid bottlenecks
Operating Temperature120–180 °CBelow 120°C RAP may not flow; above 180°C risks binder aging
Insulation Thickness80–150 mmThicker insulation reduces heat loss and energy cost
Heating Power50–150 kWSufficient to maintain temperature during storage
Temperature Control Accuracy±5 °CTighter control improves mix consistency
Discharge Accuracy±1 %Ensures correct RAP proportion in mix
Drive Power7.5–22 kWFor discharge gate and agitator
Supply Voltage380–690 V ACThree-phase; other voltages on requestIEC 60038
Frequency50–60 HzCompatible with global power gridsIEC 60038
Material GradeQ235BStructural steel; optional stainless steel liningGB/T 700
Weight15–45 tAffects foundation and transport requirements
Footprint20–60 Plan for plant layout and access

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Bin Structure / Shell Part
    Provides the main containment volume for the RAP material. Designed with steep hopper angles to promote material flow and prevent bridging.
    Material: structural steel
  • Discharge Feeder
    A mechanical device (e.g., belt feeder, chain conveyor) at the bin outlet that controls the rate of material discharge.
    Material: steel, wear-resistant components
  • Wear Liners Part
    Protective plates installed on the interior surfaces, especially in high-wear areas like the hopper, to extend service life.
    Material: abrasion-resistant steel plate
  • Vibrators
    Electrically or pneumatically powered devices mounted on the bin exterior to promote material flow and prevent arching or ratholing of sticky RAP material.
    Material: steel casing, internal components
  • Level Sensor / Load Cell System
    Monitors the amount of material in the bin to provide inventory data and control signals for the plant's automation system.
    Material: various (stainless steel, electronics)

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for RAP Storage Bin.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric (vented design)
other spec: Max RAP particle size: 50mm, Discharge rate: 10-100 tons/hour, Moisture content: <5%
temperature: -20°C to 80°C
Media Compatibility
✓ Recycled Asphalt Pavement (RAP) ✓ Cold feed aggregates ✓ Reclaimed asphalt shingles (RAS)
Unsuitable: Hot liquid asphalt (above 150°C) or corrosive chemical slurries
Sizing Data Required
  • Daily RAP throughput requirement (tons/day)
  • Available plant footprint/height (meters)
  • Required discharge rate matching plant mixer capacity (tons/hour)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Structural fatigue cracking
Cause: Cyclic thermal expansion/contraction from temperature variations in stored RAP material, combined with material embrittlement from prolonged UV exposure and environmental stress cracking.
Corrosion-induced material degradation
Cause: Galvanic corrosion at weld joints and fastener points due to dissimilar metals, accelerated by acidic leachate from aged asphalt binder and moisture accumulation in the bin's lower sections.
Maintenance Indicators
  • Visible rust streaks or weeping at weld seams, particularly around discharge gates and support structures, indicating active corrosion progression.
  • Audible metallic popping or cracking sounds during temperature transitions (early morning/late evening), signaling thermal stress relief and potential crack propagation.
Engineering Tips
  • Implement quarterly infrared thermography surveys to map thermal gradients and identify stress concentration areas before cracks manifest visibly.
  • Apply sacrificial anode cathodic protection at critical weld joints and install continuous moisture monitoring sensors in the bin's lower third to enable predictive corrosion intervention.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ANSI MH28.1 - Standard for Industrial and Commercial Steel Storage Racks

Quoted from the published standard.

Manufacturing Precision
  • Overall dimensions: +/- 2mm
  • Squareness: +/- 1.5mm per meter
Quality Inspection
  • Load capacity test (static and dynamic)
  • Visual and dimensional inspection per ASME B46.1

Manufacturers of RAP Storage Bin

Manufacturer profiles associated with RAP Storage Bin.

Sourcing RAP Storage Bin from China?
Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.
Request manufacturers We manufacture this

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Share this page
Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Supply Chain Compatible Machinery & Devices

Automated Powder Coating System

Integrated industrial system for applying dry powder coatings to metal substrates.

Explore Specs →
Centrifugal Pump Impeller

The centrifugal pump impeller is a critical rotating component that converts mechanical energy from the motor into kinetic energy in fluid systems.

Explore Specs →
High-Precision CNC Laser Cutting Machine

Computer-controlled industrial machine using focused laser beams to cut sheet metal with micron-level accuracy.

Explore Specs →
Industrial-Grade Hydraulic Cylinder Piston Rod

This industrial-grade piston rod is a precision-ground cylindrical component designed for use in hydraulic cylinders.

Explore Specs →

Frequently Asked Questions

What is the typical storage capacity of a RAP storage bin?

The directory reference range for storage capacity is 50 to 200 tonnes. The actual capacity depends on the specific model and plant requirements. Always confirm with the manufacturer or supplier for the exact value.

What materials are used in the construction of a RAP storage bin?

The bin is typically made of structural steel (e.g., Q235B) and may have abrasion-resistant steel plate liners to reduce wear. Material grades should be verified with the manufacturer for the specific model.

How is the discharge rate controlled?

The discharge mechanism, such as a belt feeder or vibratory feeder, is controlled by a system that adjusts the feed rate based on feedback from level sensors or load cells. This ensures accurate metering of RAP material into the mixing process.

What temperature range is recommended for RAP storage?

The recommended operating temperature range is 120 to 180°C. Below 120°C, RAP may not flow properly; above 180°C, there is a risk of binder aging. The bin is insulated and heated to maintain this range.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.
Buyer enquiry

Request manufacturing insight for RAP Storage Bin

Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.

Where it goes
Straight to the CNFX editorial desk, and to the manufacturer if this product is linked to a claimed profile. Nothing is broadcast to a supplier list.
Your details stay here
We do not sell or rent enquiry data, and we do not add you to a mailing list. Used only to answer this request.
No commission, no middleman
CNFX is a directory. We take no cut of any order and never negotiate on a supplier's behalf.
What we don't claim
A listing is not an endorsement. Qualify every supplier and verify every figure yourself before ordering.

Your business information is used only to process this request.

Thank you! Your message has been sent. We'll respond within 1–3 business days.
Sorry, we couldn't send your message. Please try again, or email us at [email protected].

Need to Manufacture RAP Storage Bin?

Compare manufacturer profiles with relevant product and process capability.

Previous Product
Z-axis Ram/Spindle
Last Product
Get QuotesChat