The precision metal castings inside the coffee machine are in direct contact with water, steam and coffee oil. Its durability and ease of cleaning determine the performance and user experience of the coffee machine. QD has more than 20 years of casting experience. We focus on providing high-quality, cost-effective food-grade accessory castings for global coffee machine brands.

QD coffee machine castings
Using mature investment casting and sand casting processes. QD accurately manufactures the following accessories:
Typical components | QD Process | Core role |
Brewing head shell, water distribution net seat | Investment Casting | Precision molding. Ensures uniform water flow. Stable extraction |
Steam nozzles, valve housings | Investment Casting | Resistant to high temperature and pressure. Resistant to corrosion. Extended service life |
Machine internal bracket, shell connector | Sand Casting | Provides stable support and ensures the rigidity of the whole machine structure |
Why choose QD? We not only produce castings, but also understand their role in coffee machines. Whether you need complex small parts with high precision (the advantage of investment casting) or large structural parts (the advantage of sand casting). QD can provide a one-stop solution to reduce your trouble of connecting with multiple suppliers!

QD castings: excellent quality, make your coffee machine stand out
1. Food grade safety, user peace of mind
Strictly select stainless steel (such as 304, 316L) and food grade aluminum alloy.
- Stainless steel 304: Basic material for food-grade applications. Contains 18% chromium and 8% nickel. Can effectively resist long-term corrosion from coffee acid and hot water. Has good processability and economy. An ideal choice for both safety and cost.
- Stainless steel 316: Adds 2-3% molybdenum to 304. Improves corrosion resistance by about 30%. Suitable for high-frequency cleaning or contact with grease such as steam nozzles.
- Aluminum alloy: Adopts T6 heat treatment process. Thermal conductivity is more than 10 times that of stainless steel. Can achieve rapid temperature rise in components such as heating chamber, shortening the preheating time. Lightweight characteristics can also reduce the overall weight of the coffee machine. Improves user convenience in carrying.
These materials have undergone secondary performance testing by QD and have passed international food contact material certifications such as the FDA.
2. Designed for cleaning, reducing after-sales costs
- Core advantages: Through the optimized internal flow channel design (reducing dead corners), it is difficult for oil to adhere. Reduce the problem of coffee oil residue.
- Customer value: Significantly simplify the cleaning process. Extend the maintenance-free cycle of components. Reduce maintenance troubles and after-sales costs.
3. Durable and reliable
- Investment castings are dense, and sand castings are strong. Mature process control ensures that castings are resistant to high temperature, pressure, and corrosion.
- Strict quality inspection procedures ensure batch stability. Reduce the risk of defective products on the production line. Improve the efficiency and reliability of the whole machine assembly.

Cooperating with QD: Trusted by Global Brands
QD’s casting quality and reliable delivery have won the long-term trust of many well-known coffee machine brands. These brands cover multiple scenarios such as home and commercial use. Its products are known for their stability and durability.
During the cooperation process, QD’s engineering team will be deeply involved in the early research and development of accessories. Combined with the usage habits of different markets (such as high-pressure extraction preferred by European users and frequent power on and off common among Asian users), targeted material selection and structural improvement suggestions are provided. For example, in view of the high-frequency use characteristics of commercial models, it is recommended to use stainless steel 316 material with a 0.3mm thick wall thickness. The life of the accessories is extended to 1.5 times that of ordinary products. These cooperation cases have enabled QD to accumulate experience in solutions for various complex usage environments.

Why is QD your cost-effective choice?
QD’s casting solutions provide customers with highly competitive cost advantages:
- Process expertise, cost control: QD process is mature, stable and efficient. High polishing process reduces the cleaning and maintenance frequency of accessories. Reduce the after-sales service cost of the whole machine by more than 25%. Effectively control the cost of each unit.
- Flexible response, fast delivery: Own our own factory and cooperative factory network. With flexible production capacity. Whether it is a small batch of new product trial production or a large batch of stable orders, we can respond quickly.
- Rich experience, qualified guarantee: More than 20 years of experience in serving global customers, accurately understand the needs. Reduce communication and trial mold costs. Full process material traceability system and food grade certification. Avoid rework and delay losses caused by quality problems.
From small household coffee machines to large commercial equipment, QD provides customized casting solutions for coffee machine brands. Choose QD, choose quality products.