Precision plastic part fixed lock seat CNC processing Draft Beer System Parts

Application and Characteristics of Plastic Materials in Beer Machine Accessories

I. Core Applications and Commonly Used Plastics

1. Beer Delivery and Control (Core Flow Components)

• Food-grade Silicone / Thermoplastic Elastomers (TPE/TPR)
   
  • Applications: beer tubing, sealing gaskets, valve cores, O-rings, quick-connect seals
  • Characteristics: high elasticity, alcohol and carbonation resistance, non-toxic and odorless, easy to clean, autoclavable; reliable sealing, compatible with metal connectors, solving corrosion and residue issues of metals.
   
• Polypropylene (PP) / High-Density Polyethylene (HDPE)
   
  • Applications: dispenser housings, valve handles, spear covers, filter support frames
  • Characteristics: acid and alkali resistance, impact resistance, low cost, injection moldable; ideal for structural parts not in direct contact with beer.
   

2. Beer Storage and Containers (Barrels / Tanks / Jugs)

• HDPE (High-Density Polyethylene)
   
  • Applications: disposable/reusable plastic beer barrels, fermenters, storage tanks
  • Characteristics: food-grade, impact-resistant, chemical-resistant, lightweight (≈1/8 the weight of stainless steel), shatterproof, easy to handle; suitable for household and small-scale craft brewing, can be designed for pressure-resistant structures.
   
• PET (Polyethylene Terephthalate)
   
  • Applications: transparent beer pitchers, portable barrels, observation windows
  • Characteristics: high transparency, oxygen barrier, leakproof, lightweight, low cost; convenient for observing beer status, suitable for short-term storage and display.
   
• Polycarbonate (PC)
   
  • Applications: high-transparency beer pitchers, impact-resistant containers
  • Characteristics: glass-like transparency, shatterproof, high temperature resistance; replaces glass for commercial and outdoor use.
   

3. Dispensing and Operating Components

• ABS / Modified PP
   
  • Applications: beer tap housings, handles, buttons, control panels
  • Characteristics: high rigidity, glossy surface, easy coloring, wear-resistant; improves appearance and handfeel with controllable cost.
   
• Nylon (PA) / POM (Polyoxymethylene)
   
  • Applications: gears, sliders, valve seats, quick-connect buckles
  • Characteristics: high strength, wear resistance, self-lubrication, dimensional stability; ensures service life and smooth operation.
   

4. Cooling and Insulation Systems

• Expanded Polypropylene (EPP) / Expanded Polystyrene (EPS)
  • Applications: beer machine insulation layers, cooling module housings, ice buckets
  • Characteristics: lightweight, thermal insulation, cushioning, low temperature resistance; reduces energy consumption and protects internal components.
   

5. Other Auxiliary Accessories

• PVC / TPU: transparent beer tubing, level tubes (transparent, flexible, pressure-resistant)
• Acrylic (PMMA): decorative panels, signs (high transparency, easy processing)

II. Core Characteristics of Plastics in Beer Machines

1. Food Contact Safety (Primary Requirement)

• All use FDA / EU food-grade certified materials, non-toxic, odorless, no harmful substances precipitated, complying with beer hygiene standards.
• Smooth surface resists fouling and is easy to clean and disinfect, reducing microbial growth.

2. Chemical and Environmental Resistance

• Resistant to alcohol, carbon dioxide, weak acids and alkalis, cleaning and disinfecting agents; no corrosion or swelling during long-term use.
• Adaptable to normal working conditions of 0–60°C; some high-temperature resistant materials can be steam-sterilized.

3. Lightweight and Economy

• Density is only 1/6–1/8 of metals, greatly reducing overall weight and transportation costs.
• High efficiency in injection/blow molding with low mold cost, suitable for mass production, lower overall cost than metal parts.

4. Design and Processing Advantages

• Strong plasticity, can integrally form complex structures (sealing grooves, buckles, flow channels), reducing assembly steps.
• Customizable in transparent/translucent/colored forms for observation, identification and appearance needs.

5. Performance Limitations (Notes for Selection)

• Low heat resistance: most plastics <100°C, not suitable for long-term high-temperature sterilization/boiling (except silicone).
• Limited pressure resistance: HDPE/PET barrels withstand approx. 0.5–1MPa, metal reinforcement required for high-pressure applications.
• Weak aging/UV resistance: easy to become brittle after long-term outdoor use.
• Poor thermal conductivity: not suitable for direct contact with core heat exchange surfaces of cooling or heating systems.

III. Plastic vs Metal / Glass (Comparison for Beer Machine Accessories)

IV. Selection and Usage Recommendations

1. Direct beer contact: prioritize food-grade silicone, HDPE, PP, PET for non-toxicity and corrosion resistance.
2. Sealing and elasticity: must use silicone / TPE for long-term sealing and anti-aging performance.
3. Structural and load-bearing parts: choose nylon, POM, modified PP for strength and wear resistance.
4. Transparent observation: select PC, PET, acrylic for transparency and shatterproof performance.
5. Maintenance: avoid high-temperature boiling, strong acids and alkalis, and UV exposure for plastic parts to extend service life.

We have introduced advanced equipment and technology from Japan and Germany (CNC 5-axis and 6-axis machines) to better serve our customers' needs.

Our maximum processing outer diameter is 60, and the minimum control tolerance is 0.001. We have Japanese CNC Tsugami, CNC Citizen, multi-station cold extrusion forming machines, 500T press machines, casting equipment, and various process equipment, which can effectively provide customers with the best technical solutions.

Our company has a total of 300 employees, including 20 technicians, 10 engineers, and 15 quality control personnel. We have over 300 pieces of equipment.

Our company implements 8S management and has passed ISO9001 and TS16949 automotive certifications.

Our customers include Siemens, bo-sch, Foxconn, Panasonic Motors, Husqvarna, Shimano, NVIDIA, DJI Drones, Siegenia, and Cater-pillar.