More big speed machine take more materials. Spare and Electronic component price high. Neptune machine only aim at 2000BPH-12000BPH production. Company all resource aim at this speed machine. 2. Low advertising costs, even closed to Zero. More introduce by old customer or natural find us. So that we can keep price transparent and cheap. 3. Simple design and smart design filling machine. Good design help reduce materials cost and increase the machine stable. Our machine speed is 2000BPH-12000BPH, not need a lot useless funcation which waste. A lot cost of high speed machine is on machine speed technology inquirement.