Here is the English translation of the content on Double Deep Telescopic Forks:

Double Deep Telescopic Forks

Double Deep Telescopic Forks are critical components used in warehouse logistics equipment (e.g., forklifts, automated storage and retrieval systems). Their core feature is the ability to provide two distinct telescoping depths, enabling flexible adaptation to shelves or pallet storage units of varying widths or depths. Below is a detailed breakdown:

1. Definition and Function

Double Deep: Refers to the forks' ability to perform two sequential telescoping actions, reaching two preset depth positions (e.g., shallow and deep) to accommodate different pallet or shelf dimensions.
Telescopic Forks: Horizontally driven forks that extend into pallets or shelves to lift and retrieve goods, powered by hydraulic, electric, or chain-driven mechanisms.

2. Structure and Working Principle

Dual Fork Assembly: Typically composed of two fork groups (main fork and sub-fork) linked via a synchronized or independent telescoping mechanism.
Drive Systems: Commonly motor-driven with chain/gear transmissions or hydraulic systems, ensuring precise positioning and high load capacity.

3. Key Advantages

High Flexibility: Adapts to shelves of varying depths (e.g., narrow-aisle warehouses), reducing layout constraints.
Improved Space Utilization: Optimizes storage density through depth adjustments.
Enhanced Efficiency: Eliminates the need for fork replacements when handling diverse cargo sizes, shortening operation time.
Broad Compatibility: Suitable for pallets, bins, and other storage units.

4. Typical Applications

Automated Storage and Retrieval Systems (AS/RS): Used with stacker cranes for dense storage.
Cold Chain Logistics: Rapid access to varied-sized goods, minimizing door opening time.
Multi-SKU Warehousing: Ideal for e-commerce and manufacturing with diverse inventory needs.

5. Technical Parameters and Selection Criteria

Load Capacity: Ranges from 1 to 5 tons, depending on application.
Extension Stroke: Depth ranges (e.g., main fork extends 1.5m, sub-fork adds 0.5m).
Precision: Positioning accuracy within ±2mm for safety.
Control System: Integrates with warehouse management systems (WMS) for automatic depth adjustment.

6. Comparison with Single-Deep Forks

Feature	Double Deep Forks	Single Deep Forks
Shelf Type	Dual-depth shelves, multi-size bays	Single-depth shelves
Space Efficiency	High (reduces aisle width)	Moderate
Cost	Higher (complex structure)	Lower
Maintenance	Requires dual-linkage inspections	Simpler maintenance

7. Precautions

Shelf Compatibility: Ensure shelves are designed for dual-depth operations.
Load Balance: Maintain even force distribution during telescoping to prevent uneven loading.
Maintenance: Regular lubrication of rails and chains; check sensor sensitivity.

Summary: Double Deep Telescopic Forks enhance warehouse adaptability and space efficiency by enabling adjustable depth operations. They are ideal for applications requiring multi-size cargo handling or space-constrained environments. Selection should consider load capacity, shelf design, automation integration, and maintenance requirements.

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