Why do high-viscosity oils drip or string?

• Slow flow & high surface tension: The high surface tension prevents a clean cut-off, causing a thin strand to form.
• Non-optimized nozzle/tubing: General-purpose liquid nozzles often leave residual droplets.
• Poor parameter control: Excess end-of-cycle speed, slow valve response, or big temperature swings all increase dripping.

NEOSTARPACK: purpose-built solutions for industrial oil filling

Designed for motor oil, gear oil, and industrial lubricants, our anti-drip fillers combine advanced check-valve/suck-back technology with precise motion control to suppress stringing while maintaining speed and accuracy.

Key features：
 •Anti-drip filling nozzle with suckback (check-valve) cut-off for instant liquid column separation.
 •Matched pump technologies
   o Servo piston filler: Ideal for motor and gear oils where volumetric accuracy is critical.
   o Rotor pump: Stable for sustained handling of high-viscosity oils with gentle shear.
 •Multiple nozzle diameters for narrow necks and large cans, minimizing stringing and wall wetting (bottom-up/lift filling available).
 •Temperature control & heating: Jacketed/constant-temperature tanks and lines to stabilize viscosity and improve clean cut-off.
 •Precision servo control: Programmable fill profiles (segment speeds) and valve timing for consistent fills.
 •Hygienic, durable materials: SUS304/316 stainless-steel product-contact parts suitable for industrial oils.
 •Easy cleaning & maintenance: Quick-release piping shortens changeover and CIP-style cleaning time.
Proven results：
With the correct machine configuration and parameters, drips and stringing are greatly reduced. Typical fill accuracy is ±0.5% to ±1.0% (varies by oil and conditions).
Suitable products：
 • Automotive & motorcycle motor oil, gear oil, transmission oil
 • Industrial lubricants, hydraulic oil, rust preventive oil
 • Chemical and other industrial oils

How to select the right filler for your oil?

 1. Product properties: Viscosity range; whether gentle heating is acceptable.
 2. Container & size: From 100 mL small bottles up to 5 L cans; tinplate or HDPE.
 3. Throughput target: Bottles per minute; single-head/multi-head; semi-automatic or fully automatic line.
 4. Accuracy requirement: Acceptable error band/weight or volume tolerance.
 5. Line integration: Bottle unscrambling → filling → capping → labeling → coding → cartoning.。
Share the above details and the NEOSTARPACK engineering team will propose the optimal high-viscosity oil filling solution and capacity upgrade plan for your plant.

Why choose NEOSTARPACK for industrial oil filling machine?

With 20+ years in liquid filling equipment, NEOSTARPACK tailors machines to your viscosity profile and packaging conditions. Our oil fillers not only solve drip/stringing issues, they can boost overall line efficiency by up to 35% (depending on model and process), reduce raw-material loss, and keep package quality stable.

Searching for: industrial oil filling machines, motor-oil fillers, gear-oil filling systems, servo piston fillers, or complete industrial oil filling lines?

NEOSTARPACK provides end-to-end support—from machine selection and real-oil testing to turnkey line integration—so you can achieve accuracy, speed, and cleanliness in high-viscosity oil filling.

[Contact Neostarpack] info@neostarpack.com

Read More:
1. How to choose an oil filling machine?

2. Can one filler handle multiple oils? A practical guide to oil filler interchangeability