BIS CERTIFICATION FOR CRANKED-LINK MILL CHAINS OR WELDED CONSTRUCTION IS 13927

Published Date: Dec 07, 2025 4 min Read

BIS Certification is mandatory for cranked-link mill chains, welded constructions, attachments, and sprockets as per IS 13927:2005. These chains and sprockets are crucial components in heavy-duty industrial machinery, mills, and material handling systems, where they ensure the reliable transmission of mechanical power under high loads and harsh operating conditions. BIS certification guarantees that these products meet stringent quality, durability, and performance standards, providing manufacturers and end-users with assurance of safety, reliability, and efficiency.This Indian Standard specifies the requirements for cranked-link mill chains or welded constructions, including associated attachments and sprockets. The standard covers design, material quality, dimensions, mechanical properties, and performance requirements to ensure optimal operation in industrial environments.

IS 13927:2005 – Cranked-Link Mill Chains or Welded Construction, Attachments and Sprockets

Cranked-link mill chains and welded constructions are commonly used in mills, conveyors, and heavy machinery where high tensile strength, fatigue resistance, and wear resistance are essential. By standardizing parameters such as chain pitch, link geometry, pin and roller dimensions, and sprocket tooth profiles, IS 13927:2005 ensures uniformity, compatibility, and efficient power transmission across machinery systems. Products certified under IS 13927:2005 undergo rigorous testing to ensure compliance with the standard. Tests include measurements of ultimate tensile strength, elongation, fatigue resistance, hardness of pins and plates, wear resistance, and dimensional accuracy. Sprockets are evaluated for tooth profile accuracy, load-bearing capacity, and resistance to wear under continuous operation. Chains with attachments are also tested for the strength and durability of welded joints. These tests guarantee that the chains, attachments, and sprockets perform reliably under heavy loads, high-speed operation, and demanding environmental conditions, thereby minimizing the risk of operational failures.

Benefits of BIS Certification for Cranked-Link Mill Chains and Sprockets

BIS certification under IS 13927:2005 provides manufacturers with credibility and ensures market acceptance by industrial clients, OEMs, and distributors. Certified products are recognized for meeting high safety and performance standards, which helps strengthen brand reputation and facilitates access to domestic and international markets. For end-users, BIS-certified chains and sprockets offer reliable operation, reduced maintenance costs, longer service life, and enhanced safety in heavy-duty industrial applications.

Key highlights

Product Name	Cranked-link mill chains or welded construction, attachments and sprockets
Applicable Indian Standard	IS 13927:2005
Applicable Certification Scheme	Product Certification Scheme (ISI Mark Scheme) Scheme 1 - Schedule 2
Compliance Requirement	Mandatory
Quality Control Order	-
Scope as per Standard	This International Standard specifies the characteristics of cranked-link mill chains of welded construction suitable for conveying bulk materials, together with associated attachments and chain sprockets.

Note

For Detailed Information about the Procedure for BIS ISI Certification, Visit :

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Procedure for Domestic Manufacturer
Procedure for Foreign Manufacturer

Timeline for BIS Certification

The timeframe for obtaining BIS certification depends on whether the manufacturer is Indian or foreign:

For Indian Manufacturers – The certification process generally takes about 30 days under normal conditions.
For Foreign Manufacturers – The process usually takes around 180 days, due to additional inspections, sample testing, and regulatory compliances.

Conclusion

BIS certification under IS 13927:2005 ensures that cranked-link mill chains, welded constructions, attachments, and sprockets are manufactured and tested to meet the highest standards of quality, strength, and operational efficiency. Manufacturers adhering to this standard demonstrate their ability to deliver precision-engineered industrial components, while end-users benefit from safe, efficient, and long-lasting machinery performance.
Partner with Aleph INDIA for expert guidance and end-to-end support in obtaining BIS certification for cranked-link mill chains, welded constructions, attachments, and sprockets under IS 13927:2005. Our comprehensive compliance services help manufacturers achieve smooth certification, strengthen market presence, and deliver products that meet the most stringent industrial safety and quality benchmarks.