Two-component dispensing system

System Overview

Tensan proudly presents its new generation of multi‑purpose, off‑the‑shelf dispensing solutions. Our systems integrate high‑precision 3‑axis robots with advanced digital dispensing controllers, delivering reliable, repeatable, and cost‑effective two‑component (A/B) material dispensing for a wide range of industrial applications – from     electronics encapsulation and automotive gasketing to LED potting and general adhesive bonding.

 Key Features

• Durable metering pumps – Equipped with reciprocating piston pumps or precision gear metering pumps, designed for extended service life and superior abrasion resistance. The metering pumps come with a three‑year warranty – no replacement needed within that period.
• Large XYZ working envelope – Supports a full range of motion trajectories, including point‑to‑point, straight lines, planar paths, semi‑circular arcs, irregular circles, and complex free‑form curves.
• High‑precision dispensing – Delivers consistent glue output with exceptional shot‑to‑shot repeatability.Dual fool‑proof operating software – Prevents operational errors and ensures safe, trouble‑free production.
• Proven reliability – Designed for 12 months of zero‑failure continuous operation under normal working conditions.

2. Functional Description

2.1 Ratio Control & Metering

Dual stepper motors drive the A and B metering pumps independently. The mixing ratio can be adjusted digitally from 100:100 down to 100:10 simply by modifying motor parameters – no need to change or replace the metering pump hardware.

2.2 Dispensing Parameters

Filling speed and shot time are fully programmable via digital settings. The system also accumulates total dispensed volume for production monitoring.

2.3 Material Storage & Conditioning

Separate A and B reservoirs prevent premature cross‑contamination and curing. Each tank is equipped with:

• Top‑mounted stirrers to prevent settling of fillers or pigments.
• Independent heating systems (adjustable up to 120°C).
• Vacuum de‑aeration ports (optional) to remove entrapped air.

2.4 Level Sensing & Alarm

Each storage tank features upper and lower liquid‑level sensors. When material runs low, an automatic alarm is triggered; if the level drops below the minimum safety threshold, the machine locks out automatically and resumes only after refilling.

2.5 Pressure Monitoring

In‑line pressure detection at the metering outlet continuously monitors the dispensing circuit. This effectively prevents ratio drift or blockages caused by material precipitation in the pipelines.

2.6 Mixing Valve Options

Either dynamic or static mixing valves are available. Dynamic mixing (with adjustable speed from 200 to 3000 rpm) ensures thorough, bubble‑free, and streak‑free homogenisation of A and B components, even with high‑viscosity or filled materials.

2.7 Anti‑Curing Protection

Both the A and B valves include an automatic anti‑curing function that periodically moves small amounts of material to prevent the mixed material from solidifying inside the mixing tube during idle periods.

2.8 Automatic Cleaning

A one‑touch cleaning cycle automatically flushes the mixing valve and tube – no manual disassembly is required, saving downtime and reducing solvent exposure.

2.9 User Interface

The system is controlled via a PLC + 7.2‑inch touchscreen with a bilingual (Chinese/English) interface. The intuitive, error‑proof programming allows even unskilled operators to master all functions within 30 minutes of training.

2.10 Integration & Automation

The dispenser can be easily integrated into existing assembly lines and production cells, working seamlessly with conveyor systems and robotic handlers.

2.11 3‑Axis Robot Specifications

• Effective stroke: 600 mm (X) × 600 mm (Y) × 100 mm (Z)
• X‑Y drive: Stepper motors with synchronous belt technology
• Z‑axis drive: Stepper motor with precision ball screw
• Repeatability: ±0.02 mm over all three axes
• Programming: Simple teach‑in via the hand pendant; supports direct import of CAD (DXF/DWG) graphic data
• Motion capability: Continuous interpolation for points, lines, arcs, circles, and irregular curves, enabling adaptable filling of any 3D contour

  Dispensing Performance

• Flow rate range: 0.5 g/s to 50 g/s (A+B mixed output), digitally settable.
• Metering accuracy: ±1%
• Ratio accuracy: ±1%
• Dispensing accuracy: ±1%
• XYZ traverse speed: Up to 600 mm/s

Technical Specifications (Summary Table)

Applications

• This dispensing system is ideal for:
• Potting and encapsulation of electronic modules, sensors, and PCBs
• Form‑in‑place gasketing for automotive and industrial enclosures
• Adhesive bonding of glass, metal, and plastic components
• LED lighting filling and sealing
• Medical device assembly (with appropriate material grades)
• Any application requiring precise, repeatable two‑component resin or silicone dispensing

Additional Advantages

• Low maintenance – robust pump design and self‑cleaning features minimise downtime.
• Scalable – optional configurations (tank sizes, head count, vacuum, etc.) allow customisation to specific production volumes.
• Traceability – all process parameters can be logged for quality assurance and ISO compliance.
• Global support – Tensan provides full technical documentation, onsite training, and after‑sales service.