Products Description
Are you looking for 64mm 40mm stainless steel coffee flat burr? We are a professional coffee burrs manufacturer, and the coffee burrs we make are the best alternative to SSP burrs. Whether it is small batch or large batch manufacturing, we can process it for you. In addition, we can also process according to your drawings.
manufacturing process
- Blank pretreatment: stainless steel, high-speed steel and other wear-resistant materials are selected as blanks, and the stress is relieved by annealing/tempering first, and then the matrix outline of grinding core (cone/flat knife) is roughed by CNC lathe, and the finishing allowance is reserved.
- Precision machining of tooth pattern: the conical grinding core uses a five-axis CNC machining center to mill spiral tooth pattern, and the flat knife grinding core uses a CNC milling machine to process radial/arc tooth pattern, so as to strictly control the accuracy of tooth pitch and tooth depth.
- Finishing and post-processing: CNC lathes finish the reference structures such as mounting surface and shaft hole, and the hardness of metal grinding core is improved by quenching/nitriding, and then the tooth surface finish is optimized by CNC polishing.
- Precision detection: Check the size, tooth profile and meshing clearance with three-coordinate measuring instrument and tooth profile detector to ensure that it meets the grinding requirements.
about Us
The best coffee burr OEM manufacturer in China
Founded in 2007, Xi'an Hi-Precision Machinery Co., Ltd. has over 15 years of experience in CNC-machined coffee burrs. CNC-cut burrs are sharper and more precise than cast burrs. They tend to produce a more uniform grind and fewer fines, resulting in more consistent extraction.
Advantages of CNC machining flat burrs
Why choose CNC to process coffee machine burrs
High grinding precision ensures more uniform coffee grounds. CNC machining utilizes precise programming to control tool paths, ensuring that key parameters such as the cutting edge angle, tooth pitch, and tooth depth of the flat burrs are controlled to within ±0.01mm. For methods like pour-over and drip coffee brewing that rely on uniform grounds, this precision ensures even extraction as the water flows through the grounds, avoiding over- or under-extraction in certain areas.
Stable edge quality extends tool life. A flat burr's wear resistance is closely related to its edge microstructure. CNC machining can control the surface roughness of the cutting edge to below Ra0.4, reducing stress concentration at the cutting edge. Combined with subsequent heat treatment (such as quenching and nitriding), edge hardness (for example, this 64mm 40mm stainless steel coffee flat burr achieves HRC58-62) and wear resistance can be significantly improved.
CNC machining achieves automated production through standardized procedures. The dimensional tolerance and tooth profile accuracy of flat burrs in the same batch are almost the same, ensuring uniform grinding performance of the assembled coffee machine. This allows users to adjust the grinding degree stably based on experience and reduce flavor fluctuations caused by individual differences in equipment.
Adapt to complex tooth shapes and expand grinding capabilities. CNC machining (such as multi-axis milling) can precisely achieve complex tooth shapes. For example, machining 0.5mm deep spiral grooves on the flat blade surface improves powder discharge efficiency and prevents coffee grounds from clogging.
CNC machining can reduce material waste (e.g., increasing the utilization rate of stainless steel sheets by 15%-20%) by optimizing tool paths (e.g., rapid stock removal during roughing and precise shaping during finishing).
When a new type of flat burr needs to be developed, CNC machining can quickly achieve sample production by modifying the CAD model and CAM program, without having to remake the mold or tooling, and the R&D cycle can be shortened by more than 50%.
Success Case
In addition to this 64mm 40mm stainless steel coffee flat burr, we also manufacture the following coffee machine burrs. We specialize in making custom-sized coffee machine burrs, whether it's a tapered or flat burr, and we're confident we can help you achieve it.
Selection and maintenance of flat burrs
Prefer CNC-machined flat burrs (higher edge precision and more uniform grains);
Recommended materials: 440C stainless steel (wear-resistant and rust-resistant) or titanium alloy (low thermal conductivity, corrosion-resistant, and suitable for high-end models);
For commercial use, choose a burr diameter ≥ 60mm; for home use, 50mm or less is sufficient.
Clean residual powder between the teeth with a brush weekly and remove grease with a dedicated cleaner monthly;
Avoid idling (to prevent edge wear); reduce the speed when grinding hard beans (such as dark roasts);
When not in use for extended periods, clean and store dry to prevent moisture and rust.
How do I get a quote?
Our Service Processes
WhatsApp：+8617316642819
Pre-sales Consultancy
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Confirmation of order
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Production
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Quality Inspection
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Packaging and delivery
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After-sale Services
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