KRUSS DSA30 B droplet shape analyzer
Multi functional manual instrument for handling various contact angle measurement tasks

KRUSS DSA30B droplet shape analyzer product introduction:
The basic DSA30 droplet shape analyzer is specifically designed for accurate wettability analysis through static contact angle. By quickly and easily replacing solid samples and titration liquids, high-throughput testing can be achieved. This instrument can help you ensure the effectiveness of cleaning procedures or the quality of coating and wetting processes. The optional high-temperature wettability measurement accessories and multiple upgrade options enhance the application range of the instrument.
KRUSS DSA30B droplet shape analyzer product application:
Measure the wettability of plastics, glass, ceramics, wood, paper, or metal
Analyze the effectiveness of hydrophobic coatings and other coatings
Analyze surface cleanliness
Wetting analysis under temperature control
Measurement method of KRUSS DSA30B droplet shape analyzer:
Contact angle of liquid droplets on solid surfaces
Measure the contact angle between the bottom of the solid material immersed in the liquid phase and the bubbles
Calculate surface tension by calculating the curvature of symmetrical droplets formed on a circular sample base
The forward and backward angles of droplets when rolling off a sloping surface
The contact angle immersed in the liquid of a cylindrical sample pool, typically consisting of fibers
Measure the current setback angle to characterize the de wetting behavior
Measurement results of KRUSS DSA30B droplet shape analyzer:
Practical application of KRUSS DSA30B droplet shape analyzer:
Surface treatment of wood
To optimize the measurement of surface tension and contact angle for wood protection and bonding
Wettability of contact lenses
Contact angle measurement for the development and quality assurance of biocompatible materials
Wetting and coating of textiles
To optimize the measurement of contact angle and surface tension of functional textile coatings
Adhesive with glass
Contact angle and surface tension during glass cleaning and coating
Adhesive with polymer
Contact angle and surface tension measurement: for optimizing plastic coatings
Application of surfactants
Application of Interface Chemical Measurement Method in the Development and Technical Application of Surfactants

Manual precise measurement, allowing for quick replacement of liquids
The fine-tuning manual sampling module of DSA30B can accurately adjust the droplet volume to obtain results with good comparability. This ensures high reproducibility of droplet size and allows for good comparison of results. The replaceable syringe can quickly switch between different liquids, enabling high-throughput testing.
High quality optical products, high imaging quality, reliable droplet shape analysis
The DSA30B has a high-resolution camera and high-quality zoom lens, which can accurately display the optimal size of droplets. The high image quality achieved through this can accurately measure the contact angle. The intelligent image evaluation algorithm combined with ADVANCE software can provide accurate results for droplet shape analysis using this instrument.
Multiple accessories and upgrade options
In addition to various accessory options, such as temperature control devices, we offer multiple upgrade options for the DSA30B, which can be upgraded to standard (S) and expert (E) unit configurations. A software controlled titration module that includes up to four types of test solutions, as well as manual or even automatic horizontal and vertical sample positioning modules.
Top automated titration technology
The fully automatic multi titration unit is a component that integrates automatic replacement and positioning functions, and can be equipped with up to three titration units simultaneously. Combined with a software controlled titration scheme, the system can achieve automatic and rapid surface free energy measurement through up to four liquids. In addition, the fully automatic multi titration unit also integrates temperature controlled titration units and other special solutions.
KRUSS DSA30 Comparison Table of Selection for Series Droplet Shape Analyzer (B/S/E)
comparative dimension | DSA30B(Manual Basic Type) | DSA30S(Semi automated type) | DSA30E(Expert automation type) |
product positioning | Manual, economical, upgradable | Semi automated, multifunctional | Expert level, fully automated, adhesion analysis |
Titration system | 1 × Manual injector | 2 × Software controlled injector | 2 × Software controlled injector |
Liquid needle double pressure titration | Optional | Standard configuration (1 x included) | Standard configuration (1 x included) |
Multi titration unit (fully automatic) | Optional (up to 4 liquids) | Optional (up to 4 liquids) | Optional (up to 4 liquids) |
Titration resolution/speed | – | 0.1 μL / 0.02~25 μL/s | Same as DSA30S |
Sample stage control | Zshaft manual X/YAxis none (optional manual/software control) | X/Y/Z Three axis software control Travel distance of 100 × 100 × 38 mm Accuracy of 10 μ m | Same as DSA30S |
Batch preset position measurement | ❌ not supported | ❌ not supported | ✅ Support (in conjunction with automatic sample stage) |
Contact angle measurement type | Static, dynamic, tilted, forward/backward | Static, dynamic, tilted, forward/backward | Static, dynamic, tilting, forward/backward, rolling angle |
Surface Free Energy (SFE) | Optional module | standard configuration(OWRK, Wu, Zisman, etc.) | standard configuration+ Advanced models (acid-base, H-bond, etc.) |
Surface/Interface Tension | Optional (Suspended Drop/Rising Drop) | standard configuration(Suspended Drop/Rising Drop) | standard configuration(Suspended Drop/Rising Drop) |
Adhesive force analysis | Optional | Optional | standard configuration(Adhesion, spreading coefficient, solid/liquid interfacial tension) |
Software module (Advance) | Contact angle (recommended) SFE (optional) Tension (optional) | Contact angle (recommended) SFE (Recommended) Tension (recommended) Adhesive force (optional) | Same as DSA30S, butAdhesive force analysis defaults to including |
Remote Control API | Optional | Optional | Optional |
Tilt table (optional) | 0-90°Software Control | 0-90°Software Control | 0-90°Software Control |
Temperature control options | Liquid/Peltier/electric heating | Same left | Same left |
camera | CF04(2300 fps,1920×1200) | CF04(Same as left) | CF04(Upgradeable CF10) |
lens | 6.5×Zoom, manual | Same left | Same left |
Instrument size | 610×250×610 mm, 10 kg | Same left | Same left |
Typical Applications | • Basic Wettability Test Quick inspection of hydrophobic coatings Reserved upgrade path | • Activation process quality assurance • Multi liquid high-throughput testing Coating development and quality inspection | • Scientific evaluation of adhesion force • Superhydrophobic/self-cleaning surface Batch analysis of coating uniformity Combining research and development with quality control |
Product parameters of KRUSS DSA30B droplet shape analyzer:
project | parameter |
Contact angle range | 0–180° |
resolution | 0.01° |
lighting type | High power monochrome LED |
Syringe/Liquid | Equipped with up to 8 software controlled syringes/liquids |
Please contact customer service for complete parameters |