INDUSTRY COMPONENT

Weighing Pan

A weighing pan is the platform component of a precision balance where samples are placed for mass measurement in laboratory and industrial applications.

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Component Specifications

Definition
The weighing pan is a critical component of precision balances and analytical balances, serving as the sample placement surface for mass determination. It is designed to provide stable, vibration-damped support for materials while maintaining minimal interference with measurement accuracy. Typically constructed from corrosion-resistant materials, it interfaces directly with the balance's load cell or electromagnetic force restoration mechanism through a suspension system that isolates environmental disturbances.
Working Principle
The weighing pan functions as the primary contact point for samples, transferring gravitational force through a mechanical linkage (often a parallelogram suspension system) to the balance's transducer. This force is converted into an electrical signal proportional to mass. Modern designs incorporate static dissipation, magnetic damping, and temperature compensation to maintain measurement integrity.
Materials
Stainless steel (304 or 316 grade), aluminum alloy (anodized), glass, or advanced polymers (PTFE-coated). Anti-static coatings and passivated surfaces are common for corrosion resistance and contamination prevention.
Technical Parameters
  • Capacity 0.1 g to 5000 g
  • Diameter 80-200 mm
  • Accuracy Class I, II, or III per OIML R76
  • Surface Finish Ra ≤ 0.8 μm
  • Temperature Range -10°C to 40°C
  • Static Dissipation < 3 seconds to 5000V
Standards
ISO 9001, ISO/IEC 17025, OIML R76, ASTM E617

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Weighing Pan.

weighing pan precision balance component laboratory balance parts analytical balance pan mass measurement OIML compliance stainless steel weighing surface Weighing Pan in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Precision Balance

A high-accuracy weighing instrument used for precise measurement of mass in industrial applications.

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Engineering Analysis

Risks & Mitigation
  • Contamination from previous samples
  • Electrostatic charge accumulation
  • Mechanical damage from overload
  • Corrosion in aggressive environments
  • Thermal expansion affecting calibration
FMEA Triads
Trigger: Improper cleaning with abrasive materials
Failure: Surface scratches altering mass distribution
Mitigation: Use only recommended cleaning solutions and soft cloths; implement cleaning protocols
Trigger: Exceeding maximum capacity
Failure: Permanent deformation of suspension mechanism
Mitigation: Install overload protection devices; provide clear capacity labeling

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.1% of reading for Class I balances, ±0.3% for Class II
Test Method
Gravimetric method using certified weights traceable to national standards; environmental testing per ISO 16063-21

Buyer Feedback

★★★★☆ 4.6 / 5.0 (32 reviews)

"The technical documentation for this Weighing Pan is very thorough, especially regarding technical reliability."

"Reliable performance in harsh Machinery and Equipment Manufacturing environments. No issues with the Weighing Pan so far."

"Testing the Weighing Pan now; the technical reliability results are within 1% of the laboratory datasheet."

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Frequently Asked Questions

How often should a weighing pan be calibrated?

Weighing pans themselves don't require calibration, but the complete balance system should be verified daily with certified weights and undergo formal calibration annually per ISO/IEC 17025 requirements.

Can different material weighing pans affect measurement accuracy?

Yes, material choice impacts thermal conductivity, magnetic properties, and electrostatic characteristics. Stainless steel provides optimal stability for most applications, while specialized materials address specific needs like chemical resistance or reduced magnetism.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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