Calculate manufacturing cost of a plastic chair including:
- Direct Material Costs
- Direct Labor Costs
- Indirect Costs
- Mould cost
- Production Process
- Other Costs
To calculate the manufacturing cost of a plastic chair, you need to determine the direct materials cost (plastic resin, screws, etc.).
Direct labor cost wages of workers involved in the production, and manufacturing overhead (factory rent, utilities, depreciation of machinery, etc.).
Learn about the price of plastic chairs
From home to office, chairs are an important part of everyone’s life.
Without one, we would be unable to complete many daily tasks and activities!
Whether you’re looking for basic plastic chairs or designer models made of industrial-grade materials.
The price of each type can vary greatly depending on the quality and craftsmanship.
The global plastics injection molding market was valued at USD 256.19 billion in 2020.
The market is expected to grow at a CAGR of 5.2% from 2021 to 2026.
Manufacturing cost of a plastic chair——Direct Material Costs
Direct material costs are the most important part of plastic chair manufacturing.
Mainly depending on the kind of plastic materials used and their prices.
For example, the commonly used material is polypropylene (PP) or pvc.
And the unit price is about $1.2~1.8/kg (subject to market fluctuations).
Quantity per piece
Assuming the chair weighs 3kg, the material cost is:3kg ×1.5/kg=1.5/kg=4.5/pc.
If a higher cost material is used, such as ABS, the cost may be higher.
Manufacturing cost of a plastic chair——Direct Labor Costs
Direct labor costs include the labor expenses required in the production process.
For example,the direct labor cost for each set of plastic tables and stools is $5.
If the production scale is large, labor costs may be reduced by automation equipment, but the initial equipment investment is higher.
Manufacturing cost of a plastic chair——Indirect Costs
Indirect costs include injection molding machines,utilities, maintenance, management, etc.
The indirect cost of each set of plastic tables and stools is $3.
Other indirect costs may include equipment depreciation, insurance, and taxes.
Manufacturing cost of a plastic chair——Mould cost
Mold is an indispensable part of plastic chair production, and its cost directly affects the overall manufacturing cost.
For example,the cost of tooling varies depending on the complexity of the design and the type of material.
Typically, the cost of a chair mold varies from $40,000 to $80,000 depending on the size and complexity of the chair
Manufacturing cost of a plastic chair——Production Process
Selection Different production processes have a significant impact on costs.
Injection molding is a common production process that is suitable for high-volume production, but the initial tooling cost is higher.
Although the overmolding technology is more expensive, it is suitable for small quantities of production.
Manufacturing cost of a plastic chair——Other Costs
Other possible costs include shipping, installation, and quality control.
Shipping and installation costs will vary depending on the region and shipping distance.
The cost of quality control includes the use and maintenance of testing equipment.
Reduce the cost of a plastic chair
Adopt modular design
Modular design can quickly respond to market changes, shorten the design cycle, and reduce customization costs.
By standardizing the combination of components, material waste and the number of tryouts can be reduced, resulting in increased production efficiency.
Lightweight design
Through topology optimization and wall thickness optimization technology, unnecessary materials are removed.
The weight and cost of the mold are reduced, and the production efficiency and energy consumption are improved.
Reasonable selection of mold materials
Choose mold materials suitable for environmental conditions.
Such as high-temperature and corrosion-resistant high-quality steel (such as 2738/718/P20) to ensure the durability and accuracy of the mold.
Application of digital tools
The use of digital tools such as CAD/CAM/CAE for mold design and simulation can effectively predict material flow and stress distribution.
Optimize mold design, and reduce the number of mold trials and material waste.
Injection Molding Process
Optimization Determine the optimal parting line
Finite element analysis (FEA) simulates and optimizes the mold structure to ensure strength and durability during the injection molding process.
Cooling system optimization
Design an efficient cooling system to shorten the molding cycle (e.g., 40-60 seconds), reduce the residence time of the material in the mold, and reduce energy consumption.
Injection System Optimization
Selecting the appropriate gate design and injection pressure reduces material waste and molding defects.
Recycling & Remanufacturing
Mold Remanufacturing
Through advanced repair technology and material recovery technology, extend the service life of the mold and reduce the need for new materials.
Recycle waste plastics
For example, using recycled plastics to make chair parts reduces the need for new raw materials and reduces energy consumption in production.
Quality Control & Cost Optimization
Mold tryout and fine-tuning
Fine-tuning is carried out during the mold tryout stage to ensure that the mold performance meets expectations and reduce material waste caused by mold problems.
Cost-benefit analysis
Consider cost-effectiveness in mold design, such as increasing the number of molds in the same strip.
And reducing the top and bottom plate sizes to improve commercial viability.
Haichen’s chair injection molding machine price
There are two models in Hichen’s HCK series that are commonly used to produce chairs, HCK700 and HCK1000.
In addition, if the material and shape of the chair are particularly complex.
There are HCK1500 tons to choose from, so please feel free to contact us if you need it.
