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Laboratory Weighing Instruments

High-Precision Weighing & Lab Instruments

Professional manufacturer of electronic balances, moisture analyzers, viscometers, calibration weights, and laboratory instruments since 1998. ISO9001, CE, ROHS certified.

About W&J Instrument

Founded in 1998, W&J Instrument focuses on the manufacturing of high-precision weight measurement instruments and laboratory equipment.

W&J Factory

30+ Years of Excellence

W&J Instrument is a professional manufacturer and supplier of various electronic balances, moisture analyzers, viscometers, and laboratory instruments. After nearly 30 years of development, we have produced high-precision analytical balances with accuracy down to 0.1mg.

We are the first company in China to independently research and develop rapid moisture analyzers. We continue to innovate, launching at least one new product annually.

Our mission: "Good quality for survival, good faith for development, using new technology to improve product quality."

1998+
Company Established
500+
Team Members
3000+
Factory Area (m²)
20+
Years Export Experience

Our Main Products

High-precision instruments for laboratories, industry, and research

Analytical Balance

Analytical Balance

Accuracy: 0.1mg, 0.001g. Five-side full-transparent windbreak, automatic error correction, touch color screen.

  • • 0.0001g precision
  • • Electromagnetic force sensor
  • • Overload protection
Precision Balances

Precision Balances

High stability, ideal for industrial and laboratory use. Multiple capacity options available.

  • • 0.01g to 0.1g accuracy
  • • Backlit LCD display
  • • Linear calibration
Moisture Analyzer

Moisture Analyzer

Rapid moisture determination for food, pharmaceuticals, and chemicals. First in China to develop this technology.

  • • Fast heating system
  • • Digital temperature control
  • • Auto shut-off
Digital Viscometer

Digital Viscometer

Measure viscosity of liquids with high accuracy. Suitable for QC and R&D labs.

  • • Brookfield-compatible
  • • Multiple speed options
  • • Temperature compensation
Calibration Weights

Calibration Weights

Chrome-plated, cast iron, and test weights for balance calibration. High accuracy and durability.

  • • ISO 9001 certified
  • • E1 to M1 class available
  • • OEM/ODM supported
Industrial Bench Scales

Industrial Bench Scales

Robust scales for manufacturing, logistics, and quality control. Waterproof and durable.

  • • Up to 300kg capacity
  • • IP65 protection
  • • Digital indicator
pH Meter & Conductivity Meter

pH & Conductivity Meter

Digital meters for water quality, lab testing, and environmental monitoring.

  • • Auto temperature compensation
  • • Dual display
  • • Data logging
Spectrophotometer

Visible Spectrophotometer

For color measurement and concentration analysis in chemistry and biology labs.

  • • 320–1000nm range
  • • LCD display
  • • Cuvette compatible

Our Services

Custom solutions and OEM/ODM support for global partners

🔧

Custom Instrument Design

We provide customized electronic balances and laboratory scales with special functions based on customer needs.

🏭

OEM & ODM Solutions

Full support for private labeling, packaging, and product development. We are a trusted partner for global brands.

🔬

R&D Innovation

Committed to launching at least one new product annually. First in China to develop rapid moisture analyzer.

20+
Years Production
15+
Years Export
2000+
m² Factory
ISO, CE
Certifications

Frequently Asked Questions

What is the accuracy of your analytical balances?

Our analytical balances offer precision down to 0.1mg (0.0001g), with models available at 0.001g and 0.01g accuracy.

Do you offer OEM services?

Yes, we provide full OEM and ODM services for electronic balances, calibration weights, and other instruments.

Are your products certified?

Yes, we have passed ISO9001:2008, ISO14001:2004, CE, and ROHS certifications.

Can you customize instruments?

Absolutely. We design and manufacture customized electronic balances and lab scales with special functions per client requirements.

Get in Touch

We are committed to producing the best quality products at competitive prices. Contact us for inquiries, pricing, or custom solutions.

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