High-end beer machine precision components, stainless steel pin shaft. CNC processing service.

Stainless Steel Pins Used in Beer Dispenser Components

Types, Features and Functions

1. Common Types and Applications of Stainless Steel Pins

1.1 Cylindrical Pins (GB/T 882 Type B, with split pin hole)

• Application areas:
  • Hinge shaft for tap handles / beer valves
  • Locking shaft for keg couplers / distributors
  • Hinge shaft for machine doors / panels
  • Movable connection for internal connecting rods and levers
   
• Features:
  • Food-grade 304/316 stainless steel, corrosion-resistant, easy to clean
  • With split pin hole to prevent loosening
  • Polished surface (Ra ≤ 0.8 μm), no dead ends, hygienic
  • Standard sizes (Φ3–Φ12), good interchangeability
   
• Functions:
  • Enable rotational / oscillating hinge movement
  • Position and connect components to ensure alignment
  • Reliable under frequent disassembly and cleaning
   

1.2 Flat / Round Head Positioning Pins (Parallel / Taper Pins)

• Application areas:
  • Precision positioning for taps, couplers, flow meters
  • Fixing and positioning for panels, inner tanks, brackets
  • Assembly positioning for valve seats and pump bodies
   
• Features:
  • Parallel pins: accurate positioning, easy assembly
  • Taper pins: self-locking, anti-vibration
  • Non-magnetic, acid and alkali resistant
   
• Functions:
  • Ensure high-precision alignment of components
  • Improve structural rigidity and load capacity
  • Simplify assembly and consistency
   

1.3 Slotted / Drilled Safety Pins (Overload Protection)

• Application areas:
  • Linkage shafts for pressure relief valves
  • Safety pins for pump / motor drives
  • Shear pins in overload protection mechanisms
   
• Features:
  • Designed to break accurately to protect key parts
  • Balanced strength and toughness in 304/316
  • Slotted or drilled for quick replacement
   
• Functions:
  • Prioritize shearing under overload to avoid damage
  • Cut off drive during abnormal pressure for safety
  • Reduce maintenance cost and downtime
   

1.4 Threaded Pins / Stud Pins

• Application areas:
  • High-strength connection for load-bearing brackets
  • Modular components requiring frequent disassembly
  • Fastening and positioning for pressure chambers
   
• Features:
  • Threaded ends for preloading and anti-loosening
  • 316L recommended for CIP cleaning resistance
  • High precision, good concentricity
   
• Functions:
  • Integrate connection and positioning
  • Withstand combined tension and shear loads
  • Allow quick module disassembly and maintenance
   

2. Core General Features (For Beer Equipment)

1. Hygiene & Material:

    

   Food-grade 304/316 austenitic stainless steel, complies with NSF/ANSI 5 standards.

    

   Resistant to beer, hop acids and CIP cleaning agents.
    
2. Surface Finish:

    

   Mechanical / electrolytic polishing (Ra ≤ 0.8 μm),

    

   burr-free, easy to clean, prevents biofilm buildup.
    
3. Structure & Reliability:

    

   With holes for split pins / R-clips to prevent loosening;

    

   standard tolerances for high interchangeability.
    
4. Safety & Maintenance:

    

   Safety pin design protects core components;

    

   non-magnetic, no interference with sensors or flow meters.
    

3. Selection Guidelines

• Material: 304 for general use; 316/316L for harsh cleaning environments.
• Size: Diameter Φ3–Φ12 based on load; tolerance h6/h7 for hinge fits.
• Anti-loosening: Always use split pins for movable hinges.
• Installation: Ensure concentricity to avoid eccentric wear.

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.