The digital viscometer adopts a rotary measurement principle. The motor drives the spindle to rotate at a constant speed through a precision transmission mechanism. When the spindle rotates in the liquid sample, the liquid generates a viscosity torque acting on the spindle surface. The viscosity torque is detected by a high-sensitivity sensor and processed by the built-in microcomputer system. The calculated viscosity value is then displayed digitally on the LCD screen together with spindle number, rotational speed and full-scale percentage.

Precision motor drive system High sensitivity viscosity torque sensor

Microcomputer digital processing technology Blue backlight

LCD display interface Multiple spindle and speed combination testing

Stable desktop laboratory structure

HK-5S is equipped with 4 spindles and 4 rotational speeds, providing 16 testing combinations for various liquid viscosity measurements.

HK-8S is equipped with 4 spindles and 8 rotational speeds, providing 32 testing combinations for wider viscosity testing applications and higher testing flexibility.

Application Industries

Paint and coating industry, Petroleum and lubricating oil testing, Chemical and resin manufacturing, Pharmaceutical laboratories, Cosmetics and personal care products

Dongguan Huakai Testing Equipment Technology Co., Ltd. is a professional manufacturer specializing in reliability and environmental testing equipment, with over a decade of industry experience. Unlike trading companies or OEM resellers, we are a vertically integrated manufacturer - owning our R&D, production, and quality control under one roof.
Every Huakai product is designed, engineered, and manufactured entirely in-house, giving us full control over precision, lead times, and customization depth that most suppliers simply cannot match.
Self-Developed, Not Sourced Our in-house engineering team holds multiple patents. We develop our own control systems, thermal management modules, and test software - not dependent on third-party core components that limit flexibility.
Fast Delivery Without Compromising Accuracy Standard models ship in as little as 7--15 business days. Our streamlined manufacturing process - not shortcuts - makes this possible.
Customization That Actually Goes Deep When clients require non-standard chamber sizes, unique temperature profiles, or integration with their existing data acquisition systems, we engineer a real solution - not just a relabeled catalogue product.
Global Compliance Built In All products are CE certified and comply with IEC, ASTM, MIL-STD, and GB standards. Our chambers have helped clients pass certifications across consumer electronics, EV batteries, automotive components, aerospace, and medical devices.
After-Sales You Can Rely On Factory engineers - not third-party agents - handle all technical support. Spare parts are stocked and dispatched within 24 hours. Remote diagnostics available for international clients.

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