How not to miss the budget for the mass production of buildings: 20 examples from the practice of the Bureau of Engineering Design
Publication of only two articles on how to independently evaluate the cost of manufacturing the enclosure for the device ( first and second ) raised just a wave of requests from the series “But how much will our case cost with a circulation of 5-100-1000-∞ pieces?”
As it turns out in the course of communication, the majority of requesters make a mistake in estimating production costs by an order of magnitude . I'm not kidding.
However, I could not write a simple instruction (or even simpler to make a calculator) on estimating these costs: for this you will have to take into account too many parameters. Therefore, I will simply show with examples the circulation and price. Yes, you can not accurately assess your project, but it will be clear how much money you need - 100,000 rubles, a million or more.
And if you write in the comments exactly what interests you, I will try to answer with examples: I have a lot of them (from) a great number - from the cases of miniature devices to the cases of machines the size of a house.
Cost of production of small, small and large parts
Detail dimensions 25x20 mm
One fastener made of ABS plastic.
The cost of the prototype is $ 60.
Forms cost $ 1,500 (eight-person form).
Resource forms - 300 thousand cycles.
The cost of one part is $ 0.08 with a circulation of 8,000 pieces.
Detail dimensions 150x100 mm
One ABS plastic body part.
The cost of the prototype is $ 200.
The cost of the mold is $ 4,300.
Resource forms - 200 thousand cycles
The cost of one part is $ 0.5 for a drawing of 1,000 pieces.
Detail with dimensions of 170x170 mm
One ABS plastic body part.
The cost of the prototype is $ 230.
Mold cost - $ 5.000
Mold resource - 200 thousand cycles.
The cost of one part is $ 1.1 for a drawing of 10,000 pieces.
Detail dimensions 530x120 mm
Material - ABS plastic.
The cost of the prototype is $ 350.
The cost of the mold is $ 12,000.
Mold resource - 300 thousand cycles.
The cost of one part is $ 1.4 with a circulation of 10,000 pieces.
Cost of production of small, desktop, wall, high and large buildings
Case dimensions 44x32 mm
Two body parts and one button made of ABS plastic.
The cost of the prototype is $ 150.
The cost of the mold - $ 2,500 (one form for three places).
Mold resource - 50 thousand cycles
The cost of a set of parts - $ 0.5 with a draw of 5,000 pieces.
Case dimensions 60x30 mm
Two body parts made of ABS plastic.
The cost of the prototype is $ 200.
The cost of the mold - $ 5,000 (one form for two places).
Resource molds - 50 thousand cycles
The cost of a set of parts is $ 0.8 for a drawing of 1,000 pieces.
Hermetic (IP-66) case with dimensions of 80x60x30 mm
Two body parts made of ABS plastic and one rubber seal.
The cost of the prototype is $ 280.
The cost of molds - $ 5,500 case (double form) and $ 1,500 - seal.
Resource molds - 50 thousand cycles.
The cost of a set of parts - $ 1.3 when drawing 1,000 pieces.
Housing with dimensions of 230x160x45 mm
Two body parts made of ABS plastic, three fasteners made of ABS plastic.
The cost of the prototype is $ 750.
The cost of molds is $ 12.000 ($ 5.000 back cover, $ 4.000 front cover for two seats, $ 3.000 cover and hinges for three seats).
Resource forms - 300 thousand cycles.
The cost of a set of parts is $ 3 with a circulation of 5,000 pieces.
Case dimensions 300x200x65 mm
Two ABS plastic housing parts, one cover, one frame and one set of ABS plastic buttons.
The cost of the prototype is $ 1.200.
The cost of molds is $ 14.000 ($ 7.000 base, $ 4,500 top cover, $ 2,500 cover and buttons).
Resource forms - 500 cycles.
The cost of a set of parts - $ 6 with a draw of 500 pieces.
Case dimensions 470x190x250 mm
One ABS plastic body part.
The cost of the prototype is $ 2,500.
Mold cost is $ 32,000.
Mold resource - 50 thousand cycles.
The cost of the part is $ 8.2 with a drawing of 1,000 pieces.
Case dimensions 800x800x380 mm
Two body parts made of ABS plastic, a set of blades, frame, clamps
ABS plastic.
The cost of the prototype is $ 5,000.
The cost of molds - $ 150.000.
Resource forms - 300 thousand cycles.
The cost of a set of parts is $ 20 for a drawing of 10,000 pieces.
The cost of production of metal enclosures by cutting and bending methods - from small devices to industrial machines.
Housing with dimensions of 110x70x50 mm
Two metal parts.
The cost of the prototype - 20 000 rubles.
The cost of a set of parts - 500 rubles. with circulation of 1,000 pieces.
Case dimensions 350x350x100 mm
One piece - plastic, three parts - metal.
The cost of the prototype (metal) - 20 000 rubles.
The cost of the case - 2 500 rubles. with the circulation of 1.000 pieces.
The cost of the prototype (plastic) - 3 000 rubles.
The cost of a plastic panel - 900 rubles. with circulation of 1,000 pieces.
Case dimensions 750x450x350 mm
The cost of the prototype (metal) - 200 000 rubles.
Unit cost - 35,000 rubles. with circulation of 1,000 pieces.
The case dimensions are 1300x800x700 mm
The cost of the prototype (metal) - 300 000 rubles.
The cost of the case is 68,000 rubles. with a draw of 50 pieces.
Case dimensions 3500x3000x2200 mm
The cost of the prototype (metal) - 1 300 000 rubles.
The cost of the case is 800,000 rubles. with a draw of 10 pieces.
Cost of production of cases for small devices and devices of medium size
Case dimensions 150x35 mm
Technologies: aluminum casting under pressure, aluminum extrusion + milling + anodizing.
The cost of the prototype (metal) - $ 650.
The cost of the die - $ 7.500.
The cost of the case is $ 1.8 with a circulation of 10,000 pieces.
Housing dimensions 90x80x29 mm
The cost of the prototype (metal - two aluminum body parts) - $ 700.
The cost of the mold (two seats) - $ 9.000.
Resource forms - 30 thousand cycles.
The cost of the case is $ 3.2 with a draw of 10,000 pieces.
Case dimensions 360x200x80 mm
Technologies: aluminum extrusion + milling, bending and cutting of metal + anodizing.
The cost of the prototype (full body) - $ 800.
The cost of the die - $ 3,000.
The cost of the case is $ 110 with a draw of 500 pieces.
Case dimensions 470x135x125 mm
The cost of the prototype (metal - two aluminum body parts) - $ 2,000.
The cost of the mold (two seats) - $ 42.000.
Resource forms - 150 thousand cycles.
The cost of the case is $ 93 for a drawing of 1,000 pieces.
I repeat, because it is important: a simple comparison (“Oh, I have almost the same body, which means it will cost as much!”) Does not work: there are a lot of parameters that can significantly affect the price. This includes the presence of marks in the mold, and inclines, and unclipped welds, etc. But you can roughly estimate. :)
As it turns out in the course of communication, the majority of requesters make a mistake in estimating production costs by an order of magnitude . I'm not kidding.
However, I could not write a simple instruction (or even simpler to make a calculator) on estimating these costs: for this you will have to take into account too many parameters. Therefore, I will simply show with examples the circulation and price. Yes, you can not accurately assess your project, but it will be clear how much money you need - 100,000 rubles, a million or more.
And if you write in the comments exactly what interests you, I will try to answer with examples: I have a lot of them (from) a great number - from the cases of miniature devices to the cases of machines the size of a house.
I. Production of plastic parts
Cost of production of small, small and large parts
Detail dimensions 25x20 mm
One fastener made of ABS plastic.
The cost of the prototype is $ 60.
Forms cost $ 1,500 (eight-person form).
Resource forms - 300 thousand cycles.
The cost of one part is $ 0.08 with a circulation of 8,000 pieces.
Detail dimensions 150x100 mm
One ABS plastic body part.
The cost of the prototype is $ 200.
The cost of the mold is $ 4,300.
Resource forms - 200 thousand cycles
The cost of one part is $ 0.5 for a drawing of 1,000 pieces.
Detail with dimensions of 170x170 mm
One ABS plastic body part.
The cost of the prototype is $ 230.
Mold cost - $ 5.000
Mold resource - 200 thousand cycles.
The cost of one part is $ 1.1 for a drawing of 10,000 pieces.
Detail dimensions 530x120 mm
Material - ABS plastic.
The cost of the prototype is $ 350.
The cost of the mold is $ 12,000.
Mold resource - 300 thousand cycles.
The cost of one part is $ 1.4 with a circulation of 10,000 pieces.
Ii. Production of plastic cases
Cost of production of small, desktop, wall, high and large buildings
Case dimensions 44x32 mm
Two body parts and one button made of ABS plastic.
The cost of the prototype is $ 150.
The cost of the mold - $ 2,500 (one form for three places).
Mold resource - 50 thousand cycles
The cost of a set of parts - $ 0.5 with a draw of 5,000 pieces.
Case dimensions 60x30 mm
Two body parts made of ABS plastic.
The cost of the prototype is $ 200.
The cost of the mold - $ 5,000 (one form for two places).
Resource molds - 50 thousand cycles
The cost of a set of parts is $ 0.8 for a drawing of 1,000 pieces.
Hermetic (IP-66) case with dimensions of 80x60x30 mm
Two body parts made of ABS plastic and one rubber seal.
The cost of the prototype is $ 280.
The cost of molds - $ 5,500 case (double form) and $ 1,500 - seal.
Resource molds - 50 thousand cycles.
The cost of a set of parts - $ 1.3 when drawing 1,000 pieces.
Housing with dimensions of 230x160x45 mm
Two body parts made of ABS plastic, three fasteners made of ABS plastic.
The cost of the prototype is $ 750.
The cost of molds is $ 12.000 ($ 5.000 back cover, $ 4.000 front cover for two seats, $ 3.000 cover and hinges for three seats).
Resource forms - 300 thousand cycles.
The cost of a set of parts is $ 3 with a circulation of 5,000 pieces.
Case dimensions 300x200x65 mm
Two ABS plastic housing parts, one cover, one frame and one set of ABS plastic buttons.
The cost of the prototype is $ 1.200.
The cost of molds is $ 14.000 ($ 7.000 base, $ 4,500 top cover, $ 2,500 cover and buttons).
Resource forms - 500 cycles.
The cost of a set of parts - $ 6 with a draw of 500 pieces.
Case dimensions 470x190x250 mm
One ABS plastic body part.
The cost of the prototype is $ 2,500.
Mold cost is $ 32,000.
Mold resource - 50 thousand cycles.
The cost of the part is $ 8.2 with a drawing of 1,000 pieces.
Case dimensions 800x800x380 mm
Two body parts made of ABS plastic, a set of blades, frame, clamps
ABS plastic.
The cost of the prototype is $ 5,000.
The cost of molds - $ 150.000.
Resource forms - 300 thousand cycles.
The cost of a set of parts is $ 20 for a drawing of 10,000 pieces.
Iii. Sheet Metal Sheet Production
The cost of production of metal enclosures by cutting and bending methods - from small devices to industrial machines.
Housing with dimensions of 110x70x50 mm
Two metal parts.
The cost of the prototype - 20 000 rubles.
The cost of a set of parts - 500 rubles. with circulation of 1,000 pieces.
Case dimensions 350x350x100 mm
One piece - plastic, three parts - metal.
The cost of the prototype (metal) - 20 000 rubles.
The cost of the case - 2 500 rubles. with the circulation of 1.000 pieces.
The cost of the prototype (plastic) - 3 000 rubles.
The cost of a plastic panel - 900 rubles. with circulation of 1,000 pieces.
Case dimensions 750x450x350 mm
The cost of the prototype (metal) - 200 000 rubles.
Unit cost - 35,000 rubles. with circulation of 1,000 pieces.
The case dimensions are 1300x800x700 mm
The cost of the prototype (metal) - 300 000 rubles.
The cost of the case is 68,000 rubles. with a draw of 50 pieces.
Case dimensions 3500x3000x2200 mm
The cost of the prototype (metal) - 1 300 000 rubles.
The cost of the case is 800,000 rubles. with a draw of 10 pieces.
Iv. Production of metal cases for injection molding technology
Cost of production of cases for small devices and devices of medium size
Case dimensions 150x35 mm
Technologies: aluminum casting under pressure, aluminum extrusion + milling + anodizing.
The cost of the prototype (metal) - $ 650.
The cost of the die - $ 7.500.
The cost of the case is $ 1.8 with a circulation of 10,000 pieces.
Housing dimensions 90x80x29 mm
The cost of the prototype (metal - two aluminum body parts) - $ 700.
The cost of the mold (two seats) - $ 9.000.
Resource forms - 30 thousand cycles.
The cost of the case is $ 3.2 with a draw of 10,000 pieces.
Case dimensions 360x200x80 mm
Technologies: aluminum extrusion + milling, bending and cutting of metal + anodizing.
The cost of the prototype (full body) - $ 800.
The cost of the die - $ 3,000.
The cost of the case is $ 110 with a draw of 500 pieces.
Case dimensions 470x135x125 mm
The cost of the prototype (metal - two aluminum body parts) - $ 2,000.
The cost of the mold (two seats) - $ 42.000.
Resource forms - 150 thousand cycles.
The cost of the case is $ 93 for a drawing of 1,000 pieces.
I repeat, because it is important: a simple comparison (“Oh, I have almost the same body, which means it will cost as much!”) Does not work: there are a lot of parameters that can significantly affect the price. This includes the presence of marks in the mold, and inclines, and unclipped welds, etc. But you can roughly estimate. :)
Source: https://habr.com/ru/post/438832/