Shantou Xinqing Precision Machinery Technology Co.,Ltd

1. Lock device types according to product materials to avoid cross material mismatches

Material is the primary prerequisite for selection, and different materials correspond to completely different canning processes and equipment structures, which cannot be mixed:

• If the product is an aluminum can (such as a beverage can), it is necessary to choose an "aluminum can special stretching can making machine" - this type of equipment is equipped with a thinning stretching mold and an automatic aluminum coil feeding mechanism, which can adapt to the high ductility of aluminum, pull it into a seamless can body at once, and ensure sealing and pressure resistance (suitable for carbonated beverages);

• If the product is a tinplate can (such as food cans), the "tinplate special welding can making machine" should be selected - the core configuration is a resistance welding system and a weld detection device, which can weld the tinplate coil into the can body and adapt to high temperature sterilization requirements (withstand high pressure of 121 ℃ to avoid deformation of the can body);

• If the product is a composite material can (such as an aluminum plastic composite can), a "specialized production line for composite cans" needs to be selected, which includes modules such as composite substrate unwinding, hot pressing molding, and aluminum foil bonding, suitable for non carbonated, low-pressure products (such as powder drinks and small skincare products).

2. Determine equipment automation level based on production capacity and mode

Capacity and production mode directly determine the degree of automation of equipment, avoiding "overcapacity and waste" or "insufficient and inefficient automation":

• Small production capacity/multi category trial production (daily average ≤ 10000 cans, such as start-up brands and regional specialty products): Choose the "semi-automatic can making machine" - manually assisted loading and unloading, flexible mold adjustment, low investment (500000 to 2 million yuan), suitable for frequent switching of can types, the disadvantage is that it requires 2-3 people to operate, and the scrap rate is slightly higher (5% -8%);

• Medium to large-scale production (daily average of 10000 to 100000 cans, such as growth beverage factories and medium-sized canning enterprises): Choose a "fully automatic canning machine" - integrating the entire process of feeding, forming, curling, and online detection, without manual intervention, with a production capacity of 200-600 cans/minute and a low scrap rate (2% -3%). Although the investment is relatively high (3-8 million yuan), the long-term labor cost and efficiency are better;

• Large scale stable production (daily average ≥ 100000 cans, such as large brands): Choose the "intelligent canning production line" - multiple equipment linkage, coupled with MES system for real-time monitoring of production capacity and faults, with a production capacity of 800-1200 cans/minute, suitable for long-term single category mass production, ensuring quality stability and ultimate efficiency.

3. Pay attention to the adaptation of equipment core functions according to product process requirements

The device functions need to be accurately matched with the process details of the product to avoid quality problems caused by missing functions:

• If the product has high requirements for sealing (such as carbonated beverages and high-temperature sterilized foods), it is necessary to confirm that the equipment has an "online airtightness detection function" (such as vacuum leak detection, pressure leak detection, with a leakage rate of ≤ 0.1%), and the tinplate equipment also needs to be equipped with an additional "weld ultrasonic detection" to prevent welding leakage;

• If frequent switching of tank types is required (such as simultaneous production of 330ml and 500ml tanks), the "Quick Change Model Equipment" should be selected - the mold change time should be ≤ 30 minutes, and parameters can be adjusted with one click (such as stretching pressure and welding current) to avoid frequent shutdown debugging and efficiency decline;

• If you are concerned about long-term operating costs, you need to compare the "energy consumption and scrap rate" of the equipment: the fully automatic aluminum can machine consumes 50-80 kWh per 10000 cans and has a scrap rate of ≤ 3%, while the tinplate machine consumes slightly more electricity in the welding process (80-120 kWh per 10000 cans) and has a scrap rate of ≤ 4%. At the same time, priority should be given to equipment with "waste automatic recycling device" to reduce raw material waste.