Small-Scale E-Waste PCB Recycling System
The 100–200 kg/h small-scale electronic waste PCB recycling system is primarily used for the physical separation and recovery of copper, resin powder, and certain metal powders from waste circuit boards. It is suitable for small and medium-sized recycling enterprises, start-up recycling plants, and resource regeneration projects. Its core value lies in reducing the costs of manual dismantling, improving copper recovery efficiency, and alleviating the environmental pressure caused by the landfilling of electronic waste.
What Equipment Comprises a Small-Scale PCB Recycling System
This type of small-scale electronic waste recycling production line typically employs a combined process of ‘shredding + pulverising + air classification + electrostatic separation’. Compared to traditional incineration or manual dismantling methods, physical separation processes are more stable and better align with current environmental protection requirements.
win-Shaft Shredder
Used to pre-shred entire circuit boards to reduce the load on the subsequent pulveriser. It is well-suited to hard PCBs such as computer motherboards, telecommunications boards, and control boards for small household appliances.
Hammer Mill
This further pulverises the circuit boards into fine particles, facilitating the gradual separation of copper from resin fibres. Particle size is typically controlled between 3 and 5 millimetres; this step directly influences the purity of subsequent sorting.
Air Classifier System
Utilises differences in material density to perform an initial separation of lighter resin fibres from heavier metal particles. Its advantages include relatively low energy consumption and high operational continuity.
High-Voltage Electrostatic Separation Equipment
This is a critical stage in the PCB recycling production line. As copper powder is conductive, whilst resin powder is non-conductive, electrostatic differences can be utilised to further improve copper recovery rates. Typically, small-scale equipment achieves copper recovery rates of over 95%.
Pulse Dust Collection System
The PCB shredding process tends to generate glass fibre dust. The dust collection system is primarily used to control dust emissions, improve the workshop environment, and minimise the loss of fine particles.
Compared to large-scale electronic waste recycling production lines, small-scale systems require less floor space—typically just a few dozen square metres for installation and operation—and have relatively low facility requirements, making them more suitable for recycling enterprises with limited capital investment.
Key considerations when selecting equipment
Firstly, attention must be paid to cutting tools and wear parts. As circuit boards contain glass fibre, they cause significant wear to shredding equipment. If the cutting tools are of substandard quality, maintenance costs will increase significantly in the long term.
Secondly, the efficiency of electrostatic separation is crucial. Whilst some low-cost equipment may function, it often leaves a high residue of resin in the copper powder, which directly affects the subsequent selling price of the metal.
Furthermore, the dust extraction system is often overlooked. Dust from electronic waste is very fine; if the filtration capacity is insufficient, it not only affects the working environment but may also lead to dust accumulation inside the equipment.
For small and medium-sized e-waste recycling projects, the advantage of a small-scale PCB recycling system with a capacity of 100–200 kg/h lies not only in its compact size but, more importantly, in the fact that it lowers the barrier to entry for the resource recovery of electronic waste. Compared to large-scale production lines requiring substantial investment, such equipment facilitates more flexible operations.
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