4-Zone Lifting Equipment for Asphalt Mixing Plants

In a nutshell: Kelude Heavy Industry provides crane configuration solutions for asphalt mixing plants, covering four key zones—aggregate storage, asphalt heating, mixing production, and finished product silos. With lifting capacities from 3 to 32 tons and spans from 8 to 30 meters, the total plant investment in lifting equipment ranges from approximately $22,000 to $222,000. The aggregate zone is equipped with an overhead crane with grab (5–16t), the asphalt zone uses an explosion-proof crane (Ex d IIB T4, 3–10t), the mixing zone is fitted with an LD type single-girder crane (5–16t), and the finished product zone uses an MH type gantry crane (10–32t)—delivering full-process lifting from aggregate intake to finished product dispatch.

Crane Configuration for Asphalt Mixing Plants

Aggregate System | Asphalt System | Mixing/Weighing | Finished Silo/Loadout

Complete crane solutions for the four working zones of an asphalt mixing plant: aggregate, asphalt, mixing, and finished product.

Asphalt Mixing Plantcraneconfiguration solution——Aggregate/Asphalt/Bitumen/Mixing/Finished Product Four-Zone Layout

Zone 1 – Aggregate System

• Lifting capacity: 5t–16t, LD type / electric hoist

• Vibrating screen / bucket elevator

• Hot bin maintenance

• High dust / sealed environment

High Dust | Hot Bins

Zone 2 – Asphalt System

• Lifting capacity: 3t–10t, explosion-proof electric hoist

• Asphalt insulation / thermal oil

• High-temperature resistant / burn protection

• Asphalt fume explosion protection

High Temp | Asphalt Explosion-Proof

Zone 3 – Mixing / Weighing

• Lifting capacity: 10t–20t, LD type overhead crane

• Mixing arm / liner replacement

• Weighing scale maintenance

• High-temperature / abrasive environment

Mixing Drum | High Temp / Abrasion

Zone 4 – Finished Silo / Loadout

• Lifting capacity: 3t–10t, electric hoist / jib crane

• Finished silo gate

• Loadout system maintenance

• Compact space / flexibility

Loadout | Compact

Selection Parameters Across the Four Zones

Kelude Heavy Industry: Overhead & Gantry Crane Solutions

Kelude Heavy Industry specializes in the design, engineering, and manufacturing of heavy-duty overhead cranes, gantry cranes, and electric hoists. Our product range covers a diverse array of industrial applications, from standard fabrication shops to demanding steel mills and power plants. We provide complete material handling solutions that prioritize safety, efficiency, and long-term reliability.

Industrial Overhead Cranes for Demanding Applications

Our overhead cranes are built to deliver superior performance in the most challenging industrial environments. Available in single-girder and double-girder configurations, these cranes offer exceptional lifting capacity and precise load control. We engineer each system to meet specific operational requirements, ensuring seamless integration into your existing workflow.

Feature Benefit
High-performance motors & controls Enhanced precision and smooth operation
Robust steel structure Maximum durability and extended service life
Customizable span & lift height Optimized for your specific facility layout

Heavy-Duty Gantry Cranes for Outdoor & Specialized Use

For applications requiring outdoor operation or handling exceptionally heavy loads, our gantry cranes provide a versatile and cost-effective solution. These cranes are engineered for stability and ease of use, featuring robust construction and reliable mechanics. Whether for a shipping yard or a precast concrete facility, our gantry cranes are built to perform.

Electric Wire Rope Hoists & Trolleys

Our range of electric wire rope hoists is designed for high-frequency duty cycles and reliable performance. Available in various capacities, these hoists feature advanced safety mechanisms and low-maintenance components. They can be supplied as standalone units or fully integrated into our overhead crane systems.

Engineering, Installation & Global Support Services

From initial site assessment and engineering design to professional installation and commissioning, Kelude provides comprehensive support throughout your project's lifecycle. Our team of experienced engineers ensures that every solution is tailored to your exact needs. We also offer ongoing maintenance services and readily available spare parts to maximize your equipment's uptime.

Our commitment to quality is backed by certifications and adherence to international standards, including ISO 4301 for crane classification and IEC 60204-32 for electrical equipment. We serve clients across the United States and Europe, delivering reliable, high-performance material handling equipment that enhances productivity and safety.

Frequently Asked Questions

Q: What is the typical lead time for a custom overhead crane?
A: Lead times vary depending on the complexity and specifications of the crane. Standard models can be delivered in a shorter timeframe, while custom-engineered solutions typically require a longer lead time. Please contact our sales team for a specific project timeline.

Q: Do you provide installation services?
A: Yes, we offer full turnkey installation services, including on-site assembly, testing, and commissioning, performed by our certified technician teams.

Q: What after-sales support do you offer?
A: We provide comprehensive after-sales support, including warranty coverage, maintenance contracts, and a reliable supply of genuine spare parts to ensure long-term operational efficiency.

Parameter ItemAggregate SystemAsphalt SystemBatching & WeighingFinished Product Loading
recommended modelLD Type/HoistExplosion-proof electric hoistLD Typeoverhead typeHoist/jib crane
Lifting Capacity5t~16t3t~10t10t~20t3t~10t
special requirementsHigh Dust Environment/Hot BinHigh Temperature Resistant/Explosion-proofStirring Arm/Wear-ResistantLoading System
$22,000–$222,000
Typical Site Investment
3–32 t
Lifting Capacity
8–30 m
Span
A4–A6
Work Duty Classification
Ex d IIB
Explosion Protection Class
160–400 t/h
Plant Production Capacity

Lifting Solutions for Every Zone of an Asphalt Mixing Plant

A: In the aggregate system, overhead cranes handle maintenance and hoisting duties for the hot aggregate bins (120–170°C) and vibrating screens. The asphalt system's thermal oil heater and bitumen tank area require high-temperature-resistant and explosion-proof configurations.

Why Choose Kelude Heavy Industry

Kelude Heavy Industry has years of hands-on experience in the design, fabrication, and installation of asphalt mixing equipment. We supply complete lifting systems for asphalt plants—from aggregate handling to finished product loading—covering the full range of grab-equipped overhead cranes, explosion-proof cranes, and gantry cranes. Our capabilities also extend to full plant relocation and comprehensive upgrading and retrofitting of existing lifting equipment.

Grab Crane Solution for Aggregate Zones
For aggregate storage yards (crushed stone, manufactured sand, etc.) in asphalt mixing plants, we recommend overhead cranes with grab buckets in the 5–16 t range. The grab volume is optimized for bulk densities of 1.4–1.6 t/m³, and the grab cutting edges are made of NM400 wear-resistant steel. These grab cranes also reach the corner areas of the stockpile that wheel loaders cannot access, maximizing yard utilization.
Explosion-Proof Cranes for the Asphalt Zone
The asphalt heating system—thermal oil heater and bitumen storage tanks—runs on heavy fuel oil or natural gas. Because bitumen fumes contain combustible components, the hoisting area is classified as a Zone 2 explosive atmosphere. Kelude equips this zone with Ex d IIB T4 explosion-proof cranes featuring flameproof motors and pressurized electrical control boxes. Crane rails above the bitumen tank area and boiler room are hot-dip galvanized for corrosion resistance.
Gantry Cranes for Finished Product Silos
Finished product silos (80–500 t capacity) require gantry crane coverage for loading out asphalt mix into trucks. Kelude recommends MH type gantry cranes (10–32 t, spans of 20–36 m) fitted with grab buckets or bulk material lifting spreaders. These gantry cranes are specified with faster hoisting speeds than standard units—12–16 m/min at full load—to keep pace with rapid truck loading cycles.

Frequently Asked Questions

Q: How do I select a grab crane for the aggregate zone of an asphalt mixing plant?
A: For the aggregate zone, the crane lifting capacity of the overhead crane with grab is determined by the heaviest aggregate type (typically crushed stone) × 1.25. With crushed stone density at 1.5 t/m³ and a grab bucket capacity of 3–5 m³, the material weight ranges from 4.5 to 7.5 t. Adding the grab dead weight of 1.5–2.5 t brings the total lifting capacity to 6–10 t, so a 10–16 t crane is recommended. The grab cutting edge is made of NM400 wear-resistant steel, and the bucket opening width is matched to the wheel loader discharge height and the receiving hopper width. A dual-grab configuration (one in service, one as standby) is recommended.
Q: What explosion protection class is required for the asphalt area?
A: The asphalt heating and storage zones of an asphalt mixing plant emit asphalt fumes containing combustible components such as polycyclic aromatic hydrocarbons, classifying them as Zone 2 hazardous areas (Ex d IIB T4). Specific requirements: flameproof motors, positive-pressure ventilated electrical control boxes rated Ex pz IIB T4, intrinsically safe pendant stations rated Ex ia IIB T4, and all cables routed through galvanized explosion-proof conduits. Kelude Heavy Industry's explosion-proof cranes come with complete explosion-proof certification documentation to support plant acceptance inspections.
Q: How can loading speed be improved for a finished-product storage gantry crane?
A: For a finished-product storage gantry crane (10–32t), the loading bottleneck typically lies in the grab bucket's material pickup and discharge cycles. Kelude's improvement solution includes: ① a high-capacity grab bucket (3–6 m³, with a single-cycle payload of 4.5–9t); ② a lifting speed of 12–16 m/min at full load (a 50%–100% improvement over the standard 8 m/min); ③ a long-travel speed of 30–50 m/min; and ④ remote control operation, allowing the operator to stand at the optimal position for monitoring the loading process. With this optimized package, loading time for a 30t truck is reduced from 15–20 minutes down to 8–12 minutes.
Q: What corrosion protection is required for cranes used in asphalt mixing plants?
A: Corrosion on asphalt plant cranes varies by zone due to different exposure conditions: the aggregate area (dust), the asphalt area (bitumen fumes), and the mixing area (high-temperature steam). Kelude's zone-specific solution: the aggregate area uses an Epoxy Zinc-Rich Primer with a Polyurethane Topcoat (80+60μm); the asphalt area adds a bitumen-resistant Fluorocarbon Topcoat (PVDF); and the mixing area features a stainless steel electrical enclosure with Hot-Dip Galvanizing for structural components. Maintenance cycle: inspect coating integrity and fastener corrosion every six months.

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