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Xintao Precision Ltd.
Xintao Precision Ltd.

CNC Food Grade Parts

We manufacture precision-engineered, compliance-ready CNC parts for the food, beverage, and packaging industries. Adhering to FDA/Sanitary standards, we ensure burr-free surfaces and pit-free materials to eliminate bacterial growth in demanding processing environments.


Certified Materials: 1.4404 (316L) / 1.4462 (Duplex) Stainless Steel with EN 10204 3.1 certs.

HMLV Flexibility: Custom designs for High-Mix, Low-Volume production in 10-15 days.

Economic Value: 20–25% cost savings via expert DFM + DDP global delivery.

Hygienic Finish: Ra < 0.4 μm mirror-finishing to meet strict CIP/SIP standards.

Micro-Precision: 0.01mm concentricity & roundness for all rotating components.


CNC Food Grade Parts We Manufacture

Food Processing Equipment PartsFood_Processing_Equipment_Parts.jpgPrecision-turned SUS304 stepped drive shafts with integrated splines and sanitary threads, engineered with smooth, fillet transitions for clean-in-place (CIP) food blending and processing equipment.
Commercial Coffee Machine & Beverage Dispenser ComponentsCommercial_Coffee_Machine_&_Beverage_Dispenser_Components.jpgHigh-precision flow-control components,manifold adapters, and heavy-duty portafilter assemblies machined to medical-grade hygiene standards with flawless aesthetic surfaces.
Sanitary Stainless Steel ComponentsSanitary_Stainless_Steel_Components.jpgCNC-turned and bored fluid distribution manifolds with precise tri-clamp or NPT thread interfaces, ensuring zero-leakage, high corrosion resistance, and seamless, non-trapping flow channels.
Filling & Packaging Machine PartsFilling_&_Packaging_Machine_Parts.pngHigh-consistency stainless steel mixing impellers and paddle shafts ready for sanitary packaging machinery, featuring 100% burr-free edge finish and exceptional batch-to-batch repeatability.


Applications of CNC Robotics & AMR Parts

High-Speed_Primary_Food_Sorting_&_Picking.pngAutomated_Beverage_&_Liquid_Filling_Lines.png
High-Speed Primary Food Sorting & PickingAutomated Beverage & Liquid Filling Lines
Lightweight, anodized aluminum or plastic end-effectors integrated into Delta/picker robots for direct food contact (e.g., bakery handling, fruit sorting) ensuring dynamic stiffness and zero food contamination.Multi-axis filling valve blocks, pneumatic drive components, and robotic mechanical arm links engineered precisely for aggressive washdown packaging environments.


Food Grade Materials We Machine

MaterialKey AdvantagesTypical Applications
316L Stainless SteelMaximum corrosion resistance; superior pitting resistance against organic acids and harsh chemical cleaners.CIP pump impellers, filling nozzles,sanitary fluid manifolds.
304 Stainless SteelExcellent weldability and formability;
highly cost-effective for standard structural food-contact parts.
Machine frames, brackets, structural supports, conveyor links.
POM (Delrin / Acetal)Low moisture absorption, high
dimensional stability, and excellent wear resistance. FDA & EU compliant.
Conveyor gears, star wheels, guide rails, scraper blades.
PTFE (Teflon)Exceptional chemical inertness, wide
temperature range resistance, and ultra-low friction coefficient.
Sanitary seals, gaskets, high-
temperature bearings, non-stick liners.
PEEKUltra-high temperature tolerance, high mechanical strength, and excellent
chemical resistance under aggressive sterilization.
Hot-liquid manifolds, sorting claws,scraping blocks for baking.


Surface Finishes for Food Grade CNC Parts

To eliminate any risk of bacterial contamination and ensure strict adherence to FDA guidelines, our surface post-processing meets stringent sanitary

specifications:

• Mechanical Mirror Polishing: Reaching an ultra-smooth surface roughness of Ra < 0.2μm to completely eliminate macro-defects and micro-pits.

• Electropolishing: Removes a microscopic layer of metal from stainless steel, maximizing cleanability and removing surface iron contamination.

• Sanitary Passivation: Enhances the natural chromium oxide passive layer to maximize corrosion resistance against acidic foods and aggressive sanitation.

• Type III Hard Anodizing: Applied to aluminum components to prevent oxidation and provide a wear-resistant surface for high-friction moving parts.

• 100% Burr-Free Finishing: Rigorous microscopic inspection to ensure absolutely zero metal slivers or burrs flake into the food stream.


CNC Machining Capabilities for Food Grade Parts

Capability DimensionTechnical Specifications & Factory Details
CNC Milling3, 4, and 5-axis high-speed milling for complex, organic-shaped monolithic food paddles and manifolds with no welded seams.
CNC TurningMulti-axis live-tool turning for precise stepped shafts, sanitary threads (e.g., Acme, DIN 11851), and smooth radius transitions.
TolerancesStandard machining held to ISO 2768-m/f; critical sealing grooves and bearing seats held within 卤0.01mm.
Surface RoughnessAchievable roughness down to Ra 0.2$\mu$m via precision machining and post-finishing to comply with ASME BPE standards.
Batch Size ScopeFlexible production capacity supporting 1-unit rapid R&D prototyping up to high-volume OEM production runs.


Why Choose Xintao for Robotics & AMR Parts

1. Certified Premium Materials (1.4404 / 1.4462)

We process top-tier food-grade 1.4404 (316L) and 1.4462 (Duplex) stainless steels, always fully backed by EN 10204 3.1 material certifications for strict compliance and traceability.

2. HMLV Flexibility & Fast Turnaround

We specialize in HMLV (High-Mix, Low-Volume) custom designs. Our optimized production scheduling delivers engineered prototypes and custom batches in just 10–15 days.

3. Exceptional Value & DDP Delivery

Our proactive DFM (Design for Manufacturing) feedback helps eliminate material waste on costly alloys, achieving 20–25% cost savings alongside convenient DDP (Delivered Duty Paid) delivery directly to your facility.

4. Hygienic Surface Finish (Ra < 0.4 μm)

We routinely achieve an ultra-smooth roughness of Ra < 0.4 μm for food-related applications upon request, completely removing micro-pits to meet Clean-in-Place (CIP) standards.

5. Micro-Precision Engineering (0.01mm)

We guarantee strict 0.01mm concentricity and roundness for agitator shafts, blending paddles, and rotary components to prevent seal wear and ensure seamless operation under high load.


CNC Food Grade Parts FAQs

Q1: Do you provide material certifications for food-grade plastics and steels?

A: Yes. Every shipment comes with complete raw material traceability reports, including Mill Test Certificates (MTC) for 316L/304/1.4404 and FDA compliance certificates for POM, PEEK, and PTFE.

Q2: How do you guarantee that no machine oils or industrial grease remain on food-grade components?

A: All finished food-grade parts undergo a multi-stage ultrasonic degreasing wash and are packed using oil-free, sealed protective bags ready for cleanroom assembly.

Q3: Can you machine complex internal fluid channels without traps for food product accumulation?

A: Absolutely. Utilizing advanced 5-axis CNC milling, we can program smooth, continuous radii inside internal channels, eliminating sharp corners and dead zones where food could collect and spoil.

Q4: Which material do you recommend for high-temperature, frequent-steam-washdown components?

A: For metal, we recommend 1.4404 (316L) Stainless Steel with electropolishing. For engineering plastics, PEEK is the best choice due to its high thermal stability and resistance to hydrolysis under constant hot steam.


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