Double Deep Telescopic Fork

The RFKB-170×70/173 series is designed for automated warehouses where pallets are stored in double-deep rack positions. Its telescopic structure allows the fork to reach the second row of storage locations, increasing the use of rack depth without requiring an additional aisle for every pallet row.

According to the supplied product information, the system can improve storage capacity by approximately 30%–50%, depending on the warehouse arrangement. This makes the Double Deep Telescopic Fork relevant for automated storage projects where the available floor area is limited and storage density is an important design target.

The structure uses a 170 × 70/173 mm section. The large-section main beam provides the primary load-bearing support and is designed to improve torsional rigidity during extension and loaded operation. This helps reduce the effect of fork-tip deflection and lateral movement during pallet pickup and placement.

The product is designed with a multi-stage telescopic structure for double-deep operation. Available specifications cover upper fork lengths of approximately 1200–1500 mm, with fork body lengths extending across the available model range.

Single-extension stroke starts from approximately 1300 mm, while double-extension stroke can reach 2500–3000 mm depending on the specification. Installation height is 280 mm.

Load capacity also varies according to fork length. The supplied data lists 1200 kg configurations for the shorter specifications, 1000 kg for intermediate configurations, and 900 kg for longer versions.

This relationship between stroke and load capacity should be considered during purchasing. Buyers should not select a Double Deep Telescopic Fork based only on the maximum extension distance. Pallet weight, pallet dimensions, first-row and second-row positions, and the mechanical structure of the stacker crane must be considered together.

A notable structural feature is the independent mechanical interlocking arrangement between the telescopic stages. The movement of each extension section is mechanically constrained so that the next stage cannot continue the corresponding movement before the previous stage reaches the required position.

This design is intended to help prevent abnormal extension sequences that could cause fork bending, mechanical interference, or damage to the handled load.

For automated warehouses with frequent and continuous pallet movements, the correct extension sequence is especially important because the fork repeatedly enters both the first and second storage depths without direct manual operation.

Before confirming a model, procurement teams should provide the maximum pallet weight, pallet width and depth, distance between first- and second-row storage locations, available installation space, and expected operating cycle.

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Anhui Rayo Automation Technology Co., Ltd. was established in 2009 and develops intelligent logistics and non-standard automation equipment.

For mechanical components requiring controlled machining accuracy, structural rigidity, and assembly consistency, the company operates gantry machining centers, CNC machining centers, laser cutting machines, CNC lathes, and bending equipment. It can carry out processes from component machining through final assembly and commissioning.

Mechanical engineers can also match the Double Deep Telescopic Fork to the installation position, required extension distance, load condition, and equipment interface. The company's technical resources additionally cover electrical control, software development, and system integration, allowing the fork to be considered as part of a stacker crane or complete automated warehouse project.

 

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