Viscous Liquid Filling Machine

Wanying combines practical engineering experience with customized machine design, allowing customers to select suitable filling methods, nozzle quantities and conveying layouts based on their own production goals. This approach improves packaging consistency while supporting future capacity expansion without unnecessary equipment replacement.

Performance That Matches Different Production Requirements

Instead of focusing only on speed, the equipment balances filling precision, product protection and operational stability, making it suitable for continuous food manufacturing.

Core performance features

· Servo-controlled filling for repeatable dosing

· Anti-drip nozzle design to reduce product waste

· Adjustable filling parameters for multiple bottle sizes

· Stable conveying system for continuous operation

· Tool-free changeover for common package specifications

This flexibility enables manufacturers to package products with different densities while maintaining a consistent filling level and clean bottle appearance.

Piston Filling Principle for High-Viscosity Products

Unlike flow-meter filling for thin liquids, the Viscous Liquid Filling Machine utilizes a servo-driven piston filling system. The piston draws product into the cylinder during the intake stroke and pushes it through the filling nozzle during the discharge stroke. Key advantages for viscous materials include:

Positive displacement dosing – ensures consistent volume regardless of viscosity fluctuations

Anti-drip shut-off valve – spring-loaded mechanism cuts off flow instantly after each fill, preventing trailing and drips

Adjustable filling speed – reduces splashing and air entrapment for thick products

Heated hopper option – maintains flowability for products that thicken at lower temperatures (e.g., honey, syrup)

Viscosity Range & Filling Method Selection:

Thin liquids (water, juice): flow-meter filling

Medium viscosity (soy sauce, vinegar): piston or flow-meter

High viscosity (oyster sauce, peanut butter): piston filling recommended

Very high viscosity (100,000+ cP): piston + heated hopper

Typical Applications Across Food Processing Industries

A single Viscous Liquid Filling Machine can be configured for multiple product categories, reducing the need for separate packaging equipment.

Common filling applications include:

· Soy sauce

· Oyster sauce

· Peanut butter

· Chili sauce

· Salad dressing

· Tomato ketchup

· Honey

· Syrup

· Fermented bean curd seasoning liquid

· Concentrated food ingredients

The modular design also supports integration with capping, induction sealing, labeling, coding and automatic cartoning equipment, creating a complete packaging workflow from filling to finished product.

Manufacturing Capability Supports Long-Term Equipment Reliability

Machine reliability depends on consistent manufacturing standards as much as intelligent design. Wanying operates a 3,000 ㎡ standardized production facility, where precision machining, equipment assembly, commissioning and final inspection are completed under one coordinated manufacturing process.

To improve long-term performance, the company:

· Implements full-process quality inspection from raw materials to finished machines

· Uses carefully selected branded electrical components to reduce operating failures

· Continuously upgrades equipment through multiple independently developed technical patents

· Has successfully delivered customized packaging solutions for more than 1,300 customers

· Provides engineering consultation, installation support, commissioning and responsive after-sales service

This integrated manufacturing capability enables Wanying to deliver equipment that is both dependable in daily production and adaptable to changing packaging requirements.

Premium Components

PLC: Siemens

Servo drives: Yaskawa / Schneider

Sensors: OMRON / SICK

Pneumatic components: SMC / Airtac

Service Commitment

Warranty: 12 months on complete machine (excluding consumables)

Spare parts availability: 1-year guarantee for filling nozzles, piston seals, sensors, and PLC units

Standard consumables kit included: piston seal rings, filling nozzle seals, sensor spare units

Technical support: Remote diagnosis within 2 hours

Frequently Asked Questions

Q1 What products is the Viscous Liquid Filling Machine designed for?

It is suitable for thick liquids and semi-fluid products such as sauces, dressings, syrups, honey, peanut butter and other high-viscosity food materials.

Q2 Can one machine fill products with different viscosities?

Yes. Filling parameters can be adjusted, and suitable dosing systems can be selected according to product characteristics and production requirements.

Q3 Does the equipment help reduce dripping after filling?

Yes. The anti-drip nozzle design minimizes residual product at the filling outlet, helping maintain cleaner containers and reducing material waste.

Q4 Is customization available for production lines?

Yes. Wanying can configure nozzle quantity, conveyor length, filling capacity and auxiliary equipment to match existing or new production lines.

Q5 Why do manufacturers choose Wanying?

Customers value Wanying for its customized engineering capability, standardized manufacturing process, technical innovation, extensive project experience and comprehensive technical support throughout the equipment lifecycle.