Quality Testing & Inspection

Quality is at the core of everything we manufacture. All our products undergo rigorous testing and inspection at every stage of production, in accordance with relevant industry standards and codes. From raw material testing to final product certification, our quality control processes ensure that every bearing and expansion joint delivered is safe, durable, and fit for purpose.

Raw Material Testing

Elastomer compounds are tested for hardness, tensile strength, elongation at fracture, tear propagation strength, and ageing/ozone resistance, in line with the material properties specified in IRC:SP:69-2011 and IRC:83 (Part II).

Structural steel is verified for grade, yield stress, tensile strength, and elongation against IS 2062 and the equivalent international grades referenced in the applicable IRC code.

In-Process & Dimensional Inspection

Process inspection covers welding quality, corrosion protection application, vulcanizing/bonding, and clamping or presetting of components during manufacture.

Complete dimensional checks are carried out on all components and the fully assembled product against approved drawings and specified tolerances before dispatch.

Type, Routine & Acceptance Testing

Depending on product type, applicable tests include cyclic motion testing, ponding (watertightness) testing, debris-expelling testing, and pull-out testing for expansion joints, and load, rotation, and friction testing for bearings — as prescribed under IRC:SP:69-2011 (Cl. 8) and IRC:83.

Routine quality control documentation, including raw material inspection reports and process inspection records, is maintained and made available to clients as part of the Quality Control Report for each supply lot.

Certification

Kanta Rubber Pvt Ltd is an ISO 9001:2015 certified company, and testing is supported by in-house facilities as well as recognized third-party laboratories where independent certification is required by the project.