Servo Liquid Filling Machine
Industrial Servo Liquid Filling Machine
Model Series: SVM-Pro | Volumetric Dosing for Viscous, Foaming, and Corrosive Fluids
Engineering Specifications
|
Parameter |
Technical Metric |
Verification Method |
|
Volumetric Accuracy |
Plus/minus 0.2% to plus/minus 0.5% (fluid dependent) |
Gravimetric test scale audit |
|
Viscosity Range |
1 to 100,000 mPa*s (cP) |
Brookfield viscometer profile |
|
Throughput per Nozzle |
15 to 40 cycles/minute |
Factory Acceptance Test (FAT) |
|
Dosing Volume |
10ml to 5,000ml (programmable profile) |
HMI recipe execution |
|
Electrical Architecture |
380V/480V, 3-phase, 50/60Hz |
CE / UL certified panel build |
|
Wetted Materials |
Standard 316L SS; Optional Hastelloy / PTFE |
PMI (Positive Material Identification) report |
Motion Control & Fluid Architecture
Continuous multi-shift packaging requires the complete elimination of mechanical backlash and wear points. The SVM-Pro replaces conventional cam-driven piston blocks and pneumatic cylinders with individual, closed-loop servo motor axes per nozzle.
Independent Axis Control: Each dosing head pairs with an absolute encoder servo motor. This configuration permits multi-stage filling profiles, such as slow approach velocity to eliminate splashing, high transfer speed, and a controlled reverse-torque suck-back at closure to prevent stringing.
Sanitary Fluid Circuit: Tri-clamp connections form the entire fluid path, permitting toolless disassembly. The system supports full Clean-In-Place (CIP) and Sterilize-In-Place (SIP) routines without unsealing individual pistons.
Diving Nozzle Assembly: Anti-foaming diving nozzles track liquid level rise synchronously via a dedicated linear servo axis, keeping the nozzle tip submerged or level-matched to eliminate aeration in surfactant-heavy liquids.
HMI and Diagnostics: A 10-inch industrial touchscreen PLC (Siemens S7-1200 or Allen-Bradley Micro850 options) stores up to 200 operational recipes, monitoring real-time motor torque feedback to halt operations before mechanical binding occurs.
Application Matrix by Industry
Selecting the correct contact material and seal composition prevents chemical degradation and product contamination.
|
Industry Sector |
Representative Products |
Recommended Wetted Material & Seals |
|
Cosmetics & Personal Care |
Lotions, shampoos, heavy conditioners, gels |
316L Stainless Steel, Viton / PTFE seals, sanitary tri-clamps |
|
Household & Industrial Chemical |
Bleach, dish soaps, engine degreasers, acids |
Titanium or Hastelloy wetted components, FFKM seals |
|
Food & Beverage |
Honey, high-fructose syrups, cooking oils |
Food-grade 316L SS, FDA-compliant EPDM/Silicone seals |
|
Pharmaceutical & Biotech |
Liquid soaps, saline, oral suspensions |
Electro-polished interior surfaces (Ra <= 0.4 micrometer), SIP-ready |
Plant Engineering & Selection Criteria
When integrating a servo filler into an existing packaging line, engineering teams must evaluate four operational constraints:
Fluid Rheology: Newtonian fluids (water, light oils) tolerate gravity or basic time-pressure dosing. Non-Newtonian, shear-thinning, or thixotropic fluids (gels, pastes) demand positive displacement servo control to maintain consistent mass flow under changing backpressures.
Container Neck Geometry: Narrow-neck bottles require strict diving nozzle centering tolerances (plus/minus 0.5mm) to avoid fluid contact on exterior threads. Wide-mouth jars require bottom-up profiling to eliminate air pockets.
Changeover Frequency: If your plant runs 10+ SKUs daily, prioritize toolless quick-release fluid manifolds and recipe-driven servo height adjustments over raw peak speed.
Line Integration: Ensure the machine controller supports standard hardware or Ethernet-based handshaking signals (stop/run interlocks) with upstream accumulation tables and downstream rotary cappers.
Supplier Evaluation Checklist
Before issuing a purchase order for capital equipment overseas, audit potential manufacturers against these technical benchmarks:
In-House Machining: Verify CNC milling capabilities for precision manifold blocks rather than outsourced generic castings.
Component Traceability: Insist on globally recognized motion control brands (e.g., Siemens, Schneider, Festo, SMC) to ensure your local maintenance team can source spare parts domestically.
Pre-Shipment Verification: Require a mandatory Factory Acceptance Test (FAT) running your actual fluid samples at line speed, documented via video or on-site engineering witness.
Documentation Package: Ensure the delivery includes complete electrical schematics, PLC source code backup policies, 3D STEP integration files, and material mill test certificates.
Frequently Asked Questions
Q: How does servo filling differ from pneumatic piston filling?
A: Pneumatic fillers rely on air pressure and mechanical end-stops, resulting in volumetric drift as air pressure fluctuates or seals wear. Servo fillers use closed-loop digital feedback to control rotational speed and position precisely throughout the entire stroke, delivering higher repeatability (plus/minus 0.2%) and software-adjustable stroke volumes without wrench adjustments.
Q: What is the average changeover time between container sizes?
A: For the SVM-Pro series, a complete changeover-including guide-rail adjustments, recipe recall via HMI, and fluid line purge via CIP mode-takes between 15 to 25 minutes for a single operator without hand tools.
Q: How does the machine handle stringing liquids like honey or adhesives?
A: The servo motor executes a programmable reverse-torque pulse (suck-back) at the end of the dosing cycle, creating an instant break at the nozzle tip to prevent post-drip stringing on container rims.
Q: What utility connections are required on the plant floor?
A: Electrical: 3-phase power supply configured to regional plant standards (e.g., 480V/60Hz or 380V/50Hz).
Compressed Air: 6 to 8 bar clean, dry, oil-free air (ISO 8573-1 Class 1.4.1) exclusively for pneumatic bottle-indexing gates or container neck-locking cylinders (if configured).
Submit RFQ Data Sheet
To receive an engineering layout drawing and a formal quotation, please send the following operational parameters to our technical sales engineering team:
Product Name & Viscosity: Exact chemical or food profile and dynamic viscosity in mPa*s.
Fill Volume & Tolerance: Target fill amount (ml or grams) and allowable error threshold.
Required Speed: Target throughput in Bottles Per Minute (BPM) and number of filling nozzles.
Container Specifications: Technical drawings or physical sample bottles/caps.
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