KR-1906 High Precision Electronic Density Tester

Additional information

RT-1906 Digital Hydrometer Density Meter

Especially suitable for rubber, plastic, film, wire and cable, PVC pipe, powder metallurgy of powder products, oil content, density materials such as organic solvents tested.

Product Details:

Product Introduction

The KR-1906 series solid density analyzer adopts Archimedes buoyancy principle combined with high-precision microelectronic weighing sensor, designed for rapid density & specific gravity detection of solid, granular, foamed and porous materials. It automatically calculates density values only through two groups of weight measurements in air and liquid, eliminating manual formula calculation and greatly shortening single test cycle.
This equipment complies with global mainstream testing standards including ASTM D792, ASTM D297, GB/T 1033 and ISO 1183. Built-in liquid temperature compensation and solvent correction functions, it adapts to water, alcohol and other testing media. Widely deployed in plastic masterbatch factories, rubber processing plants, metal powder metallurgy workshops, cable manufacturers, jewelry inspection labs and third-party material certification institutions for raw material incoming inspection and finished product physical property verification.

Complete Technical Parameter Table

Parameter Item KR-1906-300 KR-1906-600 KR-1906-900 KR-1906-1200 KR-1906-2000
Max Sample Weighing 300g 600g 900g 1200g 2000g
Minimum Weighing Unit 0.005g 0.005g 0.01g 0.01g 0.01g
Density Resolution 0.001 g/cm³ 0.001 g/cm³ 0.001 g/cm³ 0.001 g/cm³ 0.001 g/cm³
Measuring Range 0.001 ~ 99.999 g/cm³ Same full series Same full series Same full series Same full series
Standard Calibration Weight 100g 200g 300g 500g 1000g
Supported Test Forms Solid block, particle, foam, porous workpiece Full series universal Full series universal Full series universal Full series universal
Correction Functions Liquid temp compensation, solvent density compensation All models equipped All models equipped All models equipped All models equipped
Data Transmission Port RS232 standard interface All models equipped All models equipped All models equipped All models equipped
Test Medium Default Purified water (custom alcohol/oil adaptable) Full series universal Full series universal Full series universal Full series universal

Core Competitive Advantages

  1. Ultra-High Weighing & Density Resolution
    Equipped high-stability precision sensor with 0.005g minimum weighing reading, density resolution reaches 0.001g/cm³. Multiple capacity models from 300g to 2000g are available, covering tiny granular samples and large solid workpieces of different industries, with stable data repeatability for long-time continuous batch testing.

    2.Integrated Automatic Compensation Function

    Dual built-in compensation modules for liquid temperature and special testing solvents. Users input medium density value on the touch keypad, the host automatically calibrates buoyancy error caused by temperature fluctuation or non-water liquid, effectively improving testing accuracy for oily, alcohol-soluble samples.

    3.Transparent Anti-Corrosion Testing Sink & Windproof Bracket

    Whole testing chamber is injection-molded with imported high-hardness PC material, anti-drop, acid and alkali resistant, clear visual observation of sample sinking state. Matching stainless steel suspension wire avoids contact with sink wall during weighing, preventing extra buoyancy interference; detachable full-enclosure windproof cover eliminates airflow weighing drift in open lab environments.

    4.Multi-Material One-Click Intelligent Testing Modes

    Pre-set dedicated test programs for solid blocks, plastic pellets, foamed lightweight materials, metal powder and rubber products. One-key switching between test modes without complicated parameter resetting; directly output core indexes including density, specific gravity, DIN abrasion volume and expansion rate for rubber formulations.

    5.Complete Safety & Data Output Design

    Support automatic zero tracking, overload protection and low-buzz abnormal alarm prompts. Standard reserved RS232 data transmission interface, compatible with external printers and computer terminals to export test records, facilitating laboratory report filing and batch data comparison.

    6.Compact All-In-One Bench Layout

    Integrated weighing mainframe and testing rack structure, small floor footprint suitable for narrow QC countertops. All matching accessories (standard calibration weight, sample hanging basket, liquid measuring tools) are fully equipped in factory delivery, no extra auxiliary equipment required for immediate use after unpacking.

Standard Full Test Operation Steps

  1. Equipment Calibration
    Power on and preheat for 5 minutes, place matched standard calibration weight on the weighing platform to complete one-key automatic calibration, eliminate long-term weighing deviation.
  2. Medium Temperature Recording
    Inject testing liquid into transparent sink, measure liquid real temperature with matched thermometer, input temperature value into the host to activate temperature compensation function.
  3. Air Weight Measurement
    Place clean and dry sample on upper hanging basket, wait for stable weighing value, press storage button to record sample weight in air.
  4. Liquid Buoyancy Measurement
    Move sample into the liquid suspension basket fully immersed without bubble adhesion, wait for data stabilization and store liquid weight reading.
  5. Automatic Density Calculation
    The internal microcomputer instantly computes and displays sample density, specific gravity and related material characteristic values on digital screen, one-click save test data.
  6. Sample Takeout & Daily Maintenance
    Take out sample and wipe hanging basket residual liquid, empty the sink and dry internal parts after daily testing to avoid scale and corrosion affecting subsequent test precision.

Wide Applicable Material & Industrial Fields

Plastic & Masterbatch Industry

PP/PE/PVC pellets, plastic sheets, injection molded parts, foaming materials, color functional masterbatch; judge raw material purity and formula uniformity through density testing.

Rubber & Elastomer Production

Natural rubber, silicone, sealing strips, tire tread materials, foamed shoe soles; test density, volume abrasion loss and expansion rate for vulcanization formulation optimization.

Metal & Powder Metallurgy

Aluminum alloy, copper parts, magnetic powder, stainless steel powder, sintered metal blanks; detect compactness and finished product material consistency.

New Material & Inspection Labs

Ceramic blanks, rock mineral samples, precious metal jewelry, composite insulation materials, wire cable insulation layers; factory QC sampling and third-party certification testing.
Hydrometer Density Meter
All Series of KR-1906:
 

Standard Factory Complete Delivery Kit

  1. KR-1906 series density tester main weighing unit
  2. Full transparent anti-corrosion PC testing sink + windproof dust cover
  3. Stainless steel sample hanging baskets for solid and granular specimens
  4. Matched standard calibration weight corresponding to model capacity
  5. Liquid temperature measuring thermometer and cleaning tools
  6. RS232 data transmission connecting wire
  7. Multilingual operation manual compliant with ASTM & GB standards
  8. Factory inspection qualification certificate

Global Distributor & After-Sales Support

We provide remote operation training and material matching testing guidance, with long-term stable supply of replacement weighing sensors and sink accessories. Custom maximum weighing capacity and special anti-corrosion tank versions are available for bulk order clients. Exclusive regional agent policies include priority production scheduling, OEM private brand customization and complete high-definition English marketing image packages.

English Image Overlay Label Text

Main Banner Title: KR-1906 High Precision Electronic Solid Density Tester

Control Panel Tags: CALIBRATION / DATA SAVE / MODE SWITCH / ZERO RESET

Feature Overlay Tags: 0.001g/cm³ High Precision / Temp & Solvent Compensation / RS232 Data Output / PC Transparent Test Sink / Multi-Sample Mode Support

Safety Operation Tip: Keep Testing Sink Dry After Daily Testing To Extend Service Life

Build Your Market with DGKAREY

KAREY products are trusted by customers across more than 100 countries, supporting long-term business growth in the testing equipment industry.
We are now seeking reliable partners to represent our brand in their local markets.

As an authorized distributor, you will receive dedicated regional support, ensuring a stable and protected business environment.
Your orders will be handled with priority, and our team will assist you with tailored equipment solutions based on your market needs.

From initial cooperation to ongoing development, we work closely with you to strengthen your presence and competitiveness.

DGKAREY – Your Reliable Partner in Global Supply

We go beyond supplying testing equipment. Our team manages the full journey — from export procedures to delivery at your door — ensuring efficiency, transparency, and peace of mind.

KR-1906 High Precision Electronic Density Tester

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Contact Information

+86 769 2288 2009 
sales1@dgkarey.com

Opening Hours

Monday – Friday 9am-5pm 
Weekend – Closed

Address

Wentang, DongCheng District 523000, Dongguan City, Guangdong Province, PR China