How to calculate the cost of hardware

Unit price = {material cost + [processing fee * (1 + tax 17%)]} * [1 + depletion fee (4%) + pipe sales fee (5%) + profit

Run (10%)]

I. Calculation of material cost:

Total weight of material used*Material price-(Total weight of material used- Net weight of product)*Recycling price of waste material

1) Calculation of unit weight:

① Cylindrical: πr∧2 * Density* 10∧-6 ② Punching sheet plate: Length*Width*Thickness*Density*10∧-6

2) Punching sheet plate: Length*Width*Thickness*Density*10∧-6

(2) Stamped parts to leave the edge of the material size: stamping thickness (T) one side to leave the material T ≤ 0.5mm 1.2mm 0.5mm 1.5mm 2.0mm

(3) commonly used materials density: material name density g/cm3 (t/m3)

Iron 7.8 Steel 7.85 Aluminum 2.7 Copper 8.9 Lead Brass 8.5 Mast Copper 8.5 Lead brass 8.5

(4) Common material prices:

Material name Price (17%) with tax (yuan/Kg)

Single iron ￥ 6.2 Stainless steel ￥ 18 Aluminum ￥ 20 Copper ￥ 76 Lead brass ￥ 51 Mighty copper ￥ 85

(5) Waste recycling price: Material name Price (yuan/Kg) Scrap iron ￥ 2.2 Stainless steel ￥ 14.6 The price of scrap iron ￥2.2 Stainless steel ￥14.6 Copper ￥ 44.0 lead brass ￥ 33.0

Second, the punch system fee:

A product often consists of multiple processes, each process may use different tonnage of the press, the different tonnage of beer machine punching a time of

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Prices are listed as follows:

Punching tonnage (T) Punching fee (yuan / time) 16T ￥ 0.006 25T ￥ 0.008 35T ￥ 0.010 45T ￥ 0.012 60T ￥ 0.015 80T ￥ 0.020 110T ￥ 0.025 160T ￥ 0.030 200T ￥ 0.050 200T (dual-axis) ￥ 0.060 250T (dual-axis) ￥ 0.090

Continuous mold, above the tonnage of the punching fee to be less, for example, 250T (dual-axis) - ￥ 0,050

Three, machining costs:

Type of processing machine tool Hourly rate (RMB)

Traditional machine tools (turning, milling, surface grinding, internal and external grinding, etc.) ￥ 30 wire cutting ￥ 40 CNC machining ￥ 60 slow-wire wire cutting (Hitachi) ￥100