Slotting machine is used for cutting grooves, keys and slotes of various shapes making regular and irregular surfaces both internal and external cutting internal and external gears and profiles. Slotter machine can be used on any type of work where vertical tool movement is considered essential and advantageous.
Slotter machine is defined as a machine tool uses for removing unwanted material chips from the workpiece to make splines, grooves and more. Here the Ram (Tool attached) moves reciprocating, whereas In shaper the ram moves horizontally.
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Since 2009, China’s aquaculture production has exceeded 70% of the world’s total aquaculture production. At present, the total aquaculture production in the world is about 60 million tons, of which China accounts for more than 40 million tons. China is a veritable aquaculture country. 
Many coastal cities in China have developed mariculture, and some mariculture farmers will set up the farms in sea areas several kilometers away or even ten kilometers away, in order to ensure that seafood can preserve the original taste of the ocean. Farmers spend a lot of time between farms and residences. In order to facilitate management and prevent the theft of seafood from farms, many large-scale farms need to install video surveillance systems. Because the distance between farms and residences is far away and wiring is not possible, wireless monitoring systems are generally used.
Second, the advantages of wireless monitoring system
III. Advantages of Tengyuan Chitop Wireless Bridge
Tengyuan Jituo was established in 2006 and has nearly 10 years of experience in R&D and application of industrial-grade wireless monitoring equipment and wireless bridges. Nearly 1,000 wireless monitoring projects in the country have adopted Tengyuan Wise Extension's equipment and solutions.
IV. Structure of Wireless Monitoring System in Marine Farms
1. Network Camera: Real-time monitoring of the farm site conditions.
2. Microwave wireless transmission equipment: The microwave wireless transmission equipment commonly used in aquaculture farms is a digital wireless bridge ST5817H, ST543JZ-N, etc. used for monitoring video data transmission.
3, monitor display + hard disk video recorder (NVR): users can monitor the farm through the monitor, hard disk recorders can record monitoring video for later access.
PS: After connecting to the Internet, users can also use mobile devices such as mobile phones to log on to the monitoring platform through the Internet to monitor the farms.
Fifth, Marineland wireless monitoring success stories <br> <br> Qingdao seafood breeding base wireless monitoring program: 
Fujian marine farm wireless monitoring program: 
Aquaculture farm wireless monitoring program - farm wireless monitoring program
I. Status of mariculture industry