First, introduction of shuttle truck rack
Shuttle truck rack system is a high-density storage system composed of shelves, shuttle trucks and forklifts, which can improve the utilization of warehouse space. Shuttle truck rack system refers to a small car running on a specific guide rail of the rack, i.e. shuttle truck, whose body or countertop can rise or fall, and the pallet cargo can be lifted or lowered, so that the pallet cargo can be placed in turn. The car is remotely controlled by radio, and the vehicle battery provides the endurance. It mainly relies on four wheels to move forward and backward.
The tray storage system of shuttle truck consists of shuttle truck rack, battery-driven shuttle truck and forklift truck. The shuttle truck is on the track under the pallet. It can run against the pallet and store or take out the goods on the pallet.

Second, the characteristics of shuttle truck racks
1. Achieve the highest density of pallet goods storage, significantly reducing the cost of warehouse construction.
2. Goods first in, first out and then out are optional.
3. Remote control operation, no need to drive in, high efficiency of incoming and outgoing goods.
4. Seismic safety performance is much higher than that of driving shelves.
5. Compared with the driving shelf, the pressing shelf and the gravity shelf, the comprehensive cost is lower.

Third, Suitable occasions for shuttle racks
1. Pallet Storage
2. Store the same item in each roadway
3. Shelf height is limited by forklift operation height
4. Input and Output (FIFO or FIFO) at both ends or at one end
5. Strong competitors of rolling shelves, extrusion shelves and driving shelves
6. Suitable for cold storage

Fourth, the main functions of shuttle rack
1. Single pallet access;
2. Automatic pallet access;
3. Designated number of pallet access;
4. Inventory, arrangement and side change of goods;
5. Goods first in, first in and then out;
6. Low power prompt protection - automatic return to the starting point;
7. Fast charging.

5、CHARACTERISTICS OF SHAFT SYSTEM OF Shuttle Truck
1. The shelf structure is reasonable and stable.
2. The shelf can be designed with large depth and dense storage.
3. Under the same conditions, forklift trucks have many choices.
4. It has many optional functions and is easy to operate.
5. Shuttle trucks have certain requirements for the unitary packaging of goods.
6. At present, shuttle trucks have higher cost and different standards.

6. Types of Shuttle Car Shelf
As far as the current application is concerned, the main types of shelves commonly used in the warehousing system are: cross-beam shelves, narrow lane shelves, double-depth shelves, driving shelves, push-back shelves, gravity shelves, shuttle truck shelves, etc.

(1) Beam type shelf
Beam shelf is the simplest shelf system in logistics warehousing. Forklift trucks can freely access any pallet cargo in the system. This kind of shelf system has low investment cost, adjustability and adaptability. However, due to the large number of forklift roadways and low storage density, only 30% to 35% of the warehouse space can be used.

(2) Narrow-lane shelves and double-depth shelves
Narrow Lane shelf and double-depth shelf belong to the improved type of cross-beam shelf. They need special type of forklift to access goods. The utilization ratio of height and depth direction is higher than that of cross-beam shelf, but the cost is slightly higher than that of cross-beam shelf. The space utilization rate ranges from 45% to 60%.

(2) Narrow-lane shelves and double-depth shelves
Narrow Lane shelf and double-depth shelf belong to the improved type of cross-beam shelf. They need special type of forklift to access goods. The utilization ratio of height and depth direction is higher than that of cross-beam shelf, but the cost is slightly higher than that of cross-beam shelf. The space utilization rate ranges from 45% to 60%.
(4) push-back shelves
The push-back shelf belongs to the intensive storage shelf system with high investment cost. Goods are first-in-last-out, suitable for goods with large batches and many items. The forklift truck operates outside the shelf and completes the access operation by pushing the trolley. The design depth of the shelf is generally up to 5 pallet depths. Access efficiency is higher than that of driving shelves. The utilization rate of space is 60%.
(5) Gravity shelves
Gravity shelf is a kind of intensive storage shelf system with high investment cost. Goods access first in first out, suitable for storage of large batches of goods with many items. But there are certain requirements for the bottom of the pallet. The utilization rate of space is 80%.
(6) Shuttle Car Shelf
Shuttle truck shelf belongs to intensive storage shelf system with high investment cost. Goods first in first out or first in last out are suitable for storing goods with large batches and many items. But there are certain requirements for the bottom of the pallet. The utilization rate of space is 80%.

Seventh, the specific application of shuttle truck rack
The shuttle truck rack system relies on the self-stacking characteristics of the shuttle truck in the rack track. The depth of pallet cargo can be designed as much as possible, and different items of cargo can be stored in each unit. Stored goods can be stored in large quantities according to different categories and batches to facilitate warehouse management.
When designing the shuttle truck rack system, it can be arranged along the direction of the logistics moving line according to the length and width of the warehouse. Taking advantage of the depth advantage of shuttle truck rack system, the design is to enter goods at one end and ship goods at the other end, that is, goods first in first out. As a result, when goods are out of storage, the driving distance of forklift trucks can be greatly reduced, and the efficiency of goods in and out of storage can be further improved.
Considering the characteristics and functions of shuttle truck rack system, it has relatively obvious advantages in the storage demand of large storage capacity, large quantity of goods and varieties (SKU) and high efficiency of warehousing, so it has strong raw material warehouses in fast consumer goods industry, cold chain warehousing industry, food and beverage industry, medicine, tobacco and other industries, especially in production enterprises. Applicability.
At present, automated warehouse has become a hot spot in the development of modern warehousing, and automated warehouse has been "uprooted". If shuttle truck only cooperates with forklift truck to complete access operations, it is only a semi-automated logistics system, with low degree of automation, and the corresponding staffing has not been greatly reduced. There are many cases of shuttle vehicle applied to automatic warehousing system (AS/RS) abroad. Using the configuration of shuttle truck and stacker to communicate with each other and cooperate with warehouse management system, the shuttle garage is formed. This scheme can not only reduce the number of stackers and roadways in traditional automated warehouses, but also make greater use of the space of height and depth, so as to increase the utilization rate of warehouses and reduce the system investment.