Dispensing machine accessories
Custom Dispensing Valve Accessories: Specialized in Plungers & Nozzles, Tai lored byDrawing
As a professional hardware parts manufacturer with over 15 years of precision machining expertise, wespecialize in custom dispens ing valve accessories-with a core focus on dispensing valve plungers(撞针) and dispensing nozzles (喷嘴)
Our strength lies in drawing-based customization (accept ing 2D formats: DWG/DxF/PDF with GD&T; 3Dformats: STEP/IGES/STL), enabling us to tailor these two cr itical components to your specific.
dispensing needs: fluid type (adhesives, silicones, epoxies, U resins, conductive pastes), viscosity(1 -1,000,000 cP), dot accuracy (0.01mm), and industry standards (IS0 9001, FDA 21 CFR 177 formedical, RoHS for electronics). All products are compatible with leading dispensing valve brands(EFD, Nordson, Fisnar, Musashi) and undergo rigorous qual ity control to ensure leak-free per formance,consistent flow, and long service life (1Mt cycles for highwear applications).Core Focus: Gustom Dispens ing Valve Plungers & Nozz les
We excel in manufactur ing plungers and nozz les-two components that direct ly determine dispensing precisionand effioienoy, fAye
Custom Dispensing Valve Plungers (DvP)
Plungers are the "flow control core" of dispensing valves, regulating fluid on/off andflow rate via precise Iinear actuation. Our custom designs ensure tight sealing, smoothmovement, and resistance to fluid corrosion/wear.
Key Customization Capabilities
Design & Geometry
Stroke Length: 5mm - 50mm (matched to your valve's actuation range; e.g., 8mm strokefor 2-way solenoid valves).
Shaft Dimensions: Diameter 3mm -15mm (tolerance IT6), Iength 10mm -100mm (customized to valvebody depth).
Sealing Features: Custom O-ring grooves (width 0. 5mm -2mm, depth 0. 3mm -1m) for U-cup or 0-ringsealsensures zero fluid bypass.
Tip Design: Conical (30 -60 angle for tight valve seat sealing), flat (for large-flowapp lications),or rounded (to avoid seat damage).
Drive Interface:Threaded ends (M3-M10,IS0 metric/UNC),keyways, or splines (for motor-drivenvalves).
Material Selection
Stainless Steel 416:Cost-effective for general fluids (adhesives,silicones)-hardenable(HRC30-40) for wear resistance ;easy to machine for complex grooves.
Stainless Steel 316:For medical/biotech or aggressive fluids (acids,solvents) -biocompatible(IS0 10993) and corrosion-resistant.
Ceramic (Alumina/Zirconia): UItrahigh wear resistance for abrasive fluids (fi lled epoxies withmetal/ceramic particles) - extends plunger Iife by 800% vs. steel; low friction (coefficient≤0.15).
POM(Acetal):For low-speed manual valves or sticky fluids (cyanoacry lates)-self-lubricating, prevenst fluid adhesion.
Precision & Surface Quality
Diameter Tolerance: 0.003mm (IT6) - ensures consistent sealing with valve seat.
Concentricity: 0. 002mm (avoids uneven wear and Ieakage).
Surface Roughness: Ra 0.05 um (shaft surface via grinding/polishing) - reduces
friction with valve bushings.
Surface Treatment
Triding（Case Depth 0.3-0.5mm):Enhances steel surface hardness (HV 800-1000)-ideal for high-cycle valves (≥500k cycles).
PTFE Coating :Reduces fluid adhesion (for sticky resins) and friction -compatible with temperatures up to 260°C
Electropolishing:Improves corrosion resistance for stainless steel -removes micro-burrs to prevent fluid trapping.
Application Case
Custom ceramic (alumina) plungers (diameter 5mm, 45 conical tip) for semiconductor dispensing valves (conductive silver paste, viscosity 50, 000 cP) - achieved flow rate consistency ±2%and no wear after 1.2M cycles, meeting SEMI F47 standards for semiconductor manufacturing.
Key Customization Capabilities
Gauge & Inner Bore Design
Gauge Range: 14G (2. 11mm inner diameter) for high-viscosity fluids (epoxies,silicones) to 36G (0. 10mm inner diameter) for ultra-micro dispensing (UV resins,medical adhesives).
Inner Bore Profile: Straight (for uniform flow) or tapered (1 -5 taper, reduces turbulence forlow-viscosity fluids like solvents).
Length: 5mm-150mm (custom cut to your dispensing head height; e.g., 10mm for tight PCB componentgaps, 100mm for hard-to-reach areas).
Tip Geometry
Tapered Tip: 30 (precision targeting for PCB components), 45 (balanced flow for general use),60 (wide bead dispensing for gaskets).
Flat Tip: Width 0. 5mm-5mm (for uniform beads on flat substrates like displays).
Rounded Tip: Radius 0. 1mm-1mm (avoids scratching delicate substrates: glass, flexible PCBs,medical devices).
Material Selection
Stainless Steel 304: Cost-effective for general fluids - rigid, corrosion-resistant, andcompatible with most adhesives/solvents.
Stainless Steel 316: For medical/food-grade applications (FDA21 CFR177) or aggressive fluids -biocompatible and chemical-resistant.
Tungsten Carbide: UItra-wear-resistant for abrasive fluids (filled epoxies, thermal pastes) -nozzle |ife extended by 500% vs. steel; maintains inner bore accuracy over 1M shots.
PTFE-Lined Steel: For sticky fluids (hot melts, cyanoacrylates) - non-stick inner surface preventsclogging and residue buildup.
Precision & Compatibility
Inner Bore Tolerance: 0. 001mm (critical for consistent dot size; e.g., 30G nozzle inner bore0.15mm 0.001mm).
Concentricity: 0.002mm (avoids fluid deviation from target - ensures dot accuracy 0. 005mm).
Interface: Luer Lock (male/female, standard for most valves), threaded (M4-M8), or press-fit(custom to your valve' s nozzle hub).
Application Case
Custom 30G tungsten carbide nozzles (length 15mm, 30 tapered tip) for automotive electronics disbensino (thermal conductive baste. viscositv 100, 000 cP) - ma intained inner bore accuracy ±0. 001mm after 800k shots, reducing nozzle replacement frequency by 70% and ensur ing consistentheat dissipation in LED modules.
Our "Drawing-Based Customization"' Process for Plungers & Nozzles
We streamline the workf low to turn your plunger/nozzle designs into production-ready components-with a focus on precision and speed:
Step 1: Drawing Submission & Engineering Review
Accept alI industry-standard formats: 2D (DWG/DXF/PDF with dimensional annotations, tolerancespecs, GD&T symbols) |3D (STEP/IGES/STL for complex tip/groove geometries).
Our dispensing component engineers review:Fluid-material compatibility (e. g., ceramic for abrasive pastes, 316 steel for medical adhesives).Dimensional feasibility (e.g., minimum plunger diameter 3mm, minimum nozzle inner bore 0.10mm).
DFM (Design for Manufacturability) optimization:
For plungers: Adjusting 0-ring groove depth to avoid seal extrusion under high pressure (100 psi).
For nozzles: Optimizing tip taper angle to reduce fluid "stringing" (common with low-viscosity resins).Deliver a technical quote + DFM report (material recommendations, surface treatment options, Ieadtime) within 24 hours.
Step 2: Prototype Development
Produce 1 -5 prototypes using precision machining tailored to plungers/nozzles:
Plungers: CNC turning (for shaft/threading) + CNC mill ing (for O-ring grooves)+ grinding (for IT6 diameter tolerance).
Nozzles: CNC drilling (for inner bore) + wire EDM (for ultra-fine bores
0. 15mm) + taper grinding (for tip geometry).
Inspect prototypes with plunger/nozzle-specific tests:
CMM (Accuracy 0. 0005mm): Verifies plunger concentricity, nozzle inner bore diameter, and
tip angle.
Leakage Test (for plungers): Assembles with valve seat, pressurizes to 200 psi - ensures nof luid bypass (leakage 0. 01 mL/min).
Flow Rate & Dot Accuracy Test (for nozzles): Uses your target fluid (or viscositymatchedoi l) to validate flow consistency (2%) and dot accuracy (0.005mm).
Ship prototypes + inspection reports (CMM data, Ieakage/flow test resul ts) for your approval(5-7 days lead time).
Step 3: Mass Production & Quality Control
Scale up with strict process control for plungers/nozzles:
Plungers: Automated grinding Iines (maintain Ra 0. 05 um surface roughness) + batchnitriding (ensures uniform case depth).
Nozzles: Precision honing (for inner bore Ra 0.1 um) + tungsten carbide sintering (for
ultra-wear variants).
SPC Monitoring: Tracks key parameters (plunger diameter, nozzle inner bore size) - batch
tolerance variation 0.002mm.
In-line quality checks (100% for critical features)
Plungers: Visual inspection (20X magnification) for groove burrs; hardness testing (Rockwell
NVickers) for heat-treated variants.
Nozzles: Bore gauge testing (for inner diameter); optical measurement (for tip angle and concentricity).
Chemical Compatibility Test: Exposes samples to your fluid (72-hour immersion) - ensures nomaterial degradation.
Step 4: Delivery & After-Sales Support
Packaging;
Plungers: Anti-rust oiI + vacuum-sealed bags + foam inserts (prevents shaftbending).
Nozzles: Anti-static bags + individual foam slots (avoids tip damage; criticalfor micro-nozzles 30G).
Medical-grade parts: Sterile vacuum packaging (lIS0 11135 ethylene oxidesterilization).
Documentation: CoC (Certificate of Conformance), MTR (Material Test Report),and plunger/nozzle-specific test data.
Warranty: 12-month warranty - free replacement if plungers/nozzles fail due tomanufacturing defects; technical support for valve integration.
Why Choose Our Custom Plungers& Nozzles?
Specialized Expertise: We focus exclusively on plungers and nozzles -understanding their role in dispensing precision (e.g., plunger sealing forzero leakage, nozzle bore accuracy for dot size control) better than generichardware manufacturers.
Micro-Precision Machining: Achieve IT6 tolerances (plungers: 0. 003mm;nozzles: 0.001mm inner bore), Ra 0. 05um surface roughness, and 0.005mmdot accuracy - critical for micro-dispensing (electronics, medical).
Wear & Corrosion Resistance: Offer materials like ceramic (plungers) andtungsten carbide (nozzles) that extend component Iife by 5-8X vs. standardsteel - reducing maintenance costs.
Industry Compliance: Meet FDA (medical), RoHS (electronics), and SEMl(semiconductor) standards - suitable for regulated sectors.
Please contact us
📞Consultation Hotline:86-13713270202
📱 WhatsApp:86 13713270202
💻 Online Consultation: Customer Service Portal on the Right Side of the Website
📧Email Communication:huayuegongye@gmail.com
📍Factory Address:No.15, Tangdu Road, Xiniupo Dalang Town, Dongguan City,Guangdong Province, China(On-site visits by appointment)
