500 kg Calibration Weight Stackable, OIML M1, Painted Cast Iron - KERN

Take advantage of precise OIML M1 accuracy, robust painted cast iron construction and a stackable design to streamline calibration workflows. Order the weight directly via Metav Werkzeuge or consult our specialists for guidance.

KERN 346-83 — 500 kg OIML M1 heavy-duty calibration weight, painted cast iron

The KERN 346-83 is a 500 kg calibration weight designed for industrial scales and load cells, offering OIML M1 accuracy for reliable verification and routine testing.

• OIML M1 certified accuracy
• 500 kg nominal mass
• Painted cast iron construction
• Stackable for compact storage

Calibrated accuracy that keeps processes on target

The central benefit of this calibration mass is its OIML M1 classification, which guarantees a defined maximum permissible error and thereby ensures repeatable, traceable verification of measuring equipment. With a nominal mass of 500 kg and a declared tolerance of 25 g, the test mass supports routine checks on industrial scales and platform balances where mid-range class M1 is required. For procurement and quality assurance, the classification and tolerance provide a measurable basis for compliance decisions and reduce uncertainty in measurement processes.

Durable construction for heavy-duty workshop use

Manufactured from painted cast iron, the design prioritises longevity under frequent handling and industrial conditions. The protective coating reduces corrosion risk and simplifies maintenance, while the dense cast-iron body provides dimensional stability that helps preserve the declared mass over time. These attributes translate into fewer replacements and lower lifecycle disruption, supporting uninterrupted production and calibration schedules within workshops and metrology rooms.

Practical handling and storage to save space and time

The stackable design allows multiple masses to be stored safely and compactly, reducing floor-space requirements and enabling efficient organisation of calibration equipment. Each unit’s form factor facilitates safe stacking without additional fixtures, which speeds up changeover during calibration routines. Using a single heavy-duty mass for periodic checks reduces the need to move several smaller weights, cutting handling time and improving on-site ergonomics.

Where this test mass fits into operations

This heavy-duty calibration weight is suited to industrial environments, service technicians and in-house metrology departments that require a robust reference mass for scale verification, load-cell testing and compliance routines. The combination of mid-class accuracy and solid construction makes it appropriate for regular verification tasks on platform scales and industrial weighing equipment where traceable reference masses are part of the quality management system. For organisations consolidating procurement, the mass complements centralised calibration kits and maintenance schedules.

Contact Metav Werkzeuge for supply and technical advice from our Emmerich hub — trusted specialists for precision weights and calibration solutions

Technical Data

• Article number: 346
• SKU: 346-83
• GTIN: 4045761008427
• Manufacturer: KERN
• Origin: DE

Core specifications

• Nominal mass: 500 kg
• OIML class: M1
• Tolerance (OIML): 25 g
• Tariff number: 84239090

Design & features

• Material: painted cast iron
• Stackable
• Heavy-duty calibration/test weight
• Intended for industrial scale verification

FAQ

What level of accuracy does this calibration weight provide?
The KERN 346-83 is OIML M1 classified, with a declared tolerance of 25 g for the 500 kg nominal mass, providing a mid-range precision suitable for many industrial verification tasks.

Is the weight suitable for platform scales and load cells?
Yes, the 500 kg nominal mass and OIML M1 accuracy make the test mass suitable for platform scales and load-cell checks where M1 class references are required.

What material is used and how does it affect durability?
The mass is made from painted cast iron; the coating improves corrosion resistance and the cast-iron core offers dimensional stability, resulting in durable performance under heavy-duty use.

Can multiple units be stored together safely?
Yes, the design is stackable to enable compact and safe storage of multiple masses, reducing workshop footprint and simplifying inventory management.

How does the declared tolerance translate into practical verification limits?
The 25 g tolerance defines the maximum permissible error for the weight; this numeric limit allows technicians to determine whether a scale falls within acceptable calibration margins when tested with the 500 kg reference mass.

KERN — Germany; For ordering and technical assistance contact Metav Werkzeuge: info@metav-werkzeuge.com · +49 2822 7131930