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Racking System for Chemical Warehouses: A Beginner's Guide

Racking System for Chemical Warehouses: A Beginner's Guide

Nov 13, 2024

In the field of logistics and supply chain, the selection of the right racking may be a big challenge for many warehouse operators, the rotation speed, product shelf life, and multiple factors like those would impact the warehouse efficiency ultimately, a plaster can't fit all wounds.

 

Understanding Warehouse Racking Systems

In any high-demand environment like an e-commerce distribution center, it’s essential to have a storage racking system that maximizes space while meeting specific operational needs. The type of racking system chosen will depend on factors such as inventory rotation requirements, weight and volume of goods, warehouse space limitations, and overall operational objectives.

 

Types of Industrial Racking Systems

Each racking system offers unique advantages and is suited to different types of warehouse requirements. Below is an overview of racking systems commonly used in warehouses.

 

Selective Racking Systems

Selective racking systems, or single-deep racks, are among the most prevalent choices due to their flexibility and cost-efficiency. Ideal for facilities that require immediate access to each pallet, these racks can be adapted to different product dimensions and weights.

  • Pros:
    • Accessibility: Offers direct access to each pallet, making it suitable for high-turnover goods.
    • Cost-effective: Less expensive than other types of racking systems, as it doesn’t require specialized handling equipment.
    • Adjustability: Beam heights and bay widths can be modified easily to accommodate varied inventory sizes.
  • Cons:
    • Lower storage density: Single-deep racks require more aisles, which reduces available floor space.
    • Limited scalability: Not as effective for warehouses that need high-density storage solutions.

 

Double-Deep Racking Systems

For operations with greater inventory volumes but limited floor space, double-deep racks provide a higher storage density than selective racks. By stacking pallets two rows deep, these systems reduce the need for aisle space.

  • Pros:
    • Higher storage density: Stores more pallets per square foot by reducing aisle requirements.
    • Suitable for cold storage: Often used in refrigerated warehouses where space is a premium.
  • Cons:
    • Specialized equipment needed: Requires reach forklifts for access, which increases the initial setup cost.
    • Accessibility limitations: Rear pallets can only be accessed after moving the front pallet, affecting retrieval time.

 

Cantilever Racking Systems

Cantilever racks are designed for storing long or irregularly shaped items like lumber, pipes, or steel bars. With no front columns, this racking type is highly accessible, making it a preferred choice for warehouses storing construction materials.

  • Pros:
    • Versatile storage: Ideal for items that are bulky or oversized.
    • Flexible access: Provides direct, efficient access from either side (double-sided configuration).
  • Cons:
    • High installation cost: These racks can be more expensive to install and maintain.
    • Requires space: Needs ample floor space for safe access by handling equipment.

 

Drive-In and Drive-Through Racking Systems

Drive-in and drive-through racks are built to maximize storage density by allowing forklifts to drive directly into the storage bay. These systems are ideal for bulk storage where stock rotation is limited.

  • Drive-In Racks: These racks operate on a LIFO (last in, first out) basis and are accessed from one end only, making them suitable for inventory that doesn’t require frequent rotation.
  • Drive-Through Racks: These racks operate on a FIFO (first in, first out) basis, allowing access from both sides for quicker inventory rotation.
  • Pros:
    • High storage density: Maximizes space utilization by eliminating unnecessary aisles.
    • Cost-effective: Efficiently stores high volumes of homogeneous products.
  • Cons:
    • Higher damage risk: Forklift access within the rack increases the likelihood of structural damage.
    • Limited inventory flexibility: Best suited for bulk storage of identical products due to limited pallet access.

 

Push-Back Racking Systems

Push-back racks offer a high-density storage solution where pallets are stored on rolling carts. With each additional pallet, the previous pallet is pushed further back, utilizing the space efficiently.

  • Pros:
    • Efficient stock rotation: Suitable for LIFO systems, enabling quick loading and unloading.
    • Reduced rack damage: Forklifts don’t enter the rack structure, minimizing the chance of accidental damage.
  • Cons:
    • High initial cost: Requires a more complex setup, including wheeled cart systems.
    • Regular maintenance: The rolling mechanism requires periodic servicing to maintain smooth operation.

 

Pallet Flow Racking Systems

Pallet flow racks are dynamic storage systems that use gravity to move pallets along an inclined track from the loading area to the retrieval end. This design allows for high-density storage while supporting FIFO stock rotation.

  • Pros:
    • Increased productivity: Reduces travel time for forklifts, leading to faster loading and unloading.
    • High inventory turnover: Ideal for facilities with rapid inventory rotation requirements.
  • Cons:
    • High upfront cost: Initial installation is expensive due to the need for roller conveyors.
    • Maintenance needs: Roller systems require regular checks to prevent jams, which can disrupt workflow.

 

Mobile Racking Systems

Mobile racks are mounted on rails and can be moved to create a single access aisle as needed, making them ideal for high-density storage in restricted spaces.

  • Pros:
    • Space-saving design: Maximizes floor space by eliminating fixed aisles.
    • Adaptable to varying loads: Suitable for environments with limited floor space or high rental costs.
  • Cons:
    • Complex installation: Rail-mounted systems are costly to install and maintain.
    • Safety requirements: Needs additional safety features like alarms to prevent accidents when moving the racks.

 

Selecting the Right Racking System for Chemical Warehouses

Chemical warehouses have unique storage needs due to the hazardous nature of many chemical products. A racking system in such environments should be designed to handle specific requirements like ventilation, containment, and accessibility in emergencies.

 

Key Selection Factors:

1. Weight capacity: Select a racking system that can support the weight of containers without compromising structural integrity.

2. Corrosion resistance: Chemicals can be corrosive, so ensure racks are treated or coated appropriately to prevent deterioration.

3. Containment measures: Some chemicals require secondary containment to prevent spills, which should be factored into the racking system’s design.

4. Safety compliance: Comply with industry safety standards for handling hazardous materials.

 

Comparing Racking Systems: A Practical Guide

Racking Systems Storage Density Rotation Method Initial Cost Best Use Case
Selective Racks Low Highly Accessible Low  Versatile, general storage
Double-Deep Racks Moderate LIFO Moderate Cold storage, large volumes
Cantilever Racks Variable N/A High Long, bulky items
Drive-in/Through Racks High LIFO/FIFO Moderate Bulk storage, similar items
Push Back Racks High LIFO High High-density, low rotation
Pallet Flow Racks High FIFO High Rapid turnover, heavy items
Mobile Racks High Variable Very High Space-limited environments

 

 

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