ISO 9001:2015 Certified GST: 23ADWPT8984F1ZL
Quality Assurance

Certified to the Highest Standards

Zero-compromise quality inspection — every batch dimensionally verified and load-tested before dispatch.

Quality Management

Precision. Verified.
Every Time.

Our quality management system is built around a zero-compromise inspection philosophy. Every batch undergoes multi-point dimensional checks, material verification and mechanical load validation before dispatch.

ISO 9001:2015 Certification

Full QMS covering design, production, inspection and delivery with regular third-party surveillance audits.

Defence Vendor Qualification

Approved and audited supplier to Ordnance Factory Medak (AVNL), Ministry of Defence, Government of India.

Material & Test Certificates

Full material traceability with mill test certificates and in-house test reports available for every supply batch.

DIN
German Industrial Standard

Applied for compression, torsion and tension spring design parameters and tolerances.

IS:4454
Indian Standard

BIS specification for spring steel wires used in all Indian defence and industrial supply orders.

GOST 9389
Russian Standard

Cold-drawn carbon steel wire standard specified for certain BHEL and ordnance applications.

50CrV4
Primary Alloy Grade

High-tensile chromium vanadium alloy steel — preferred material for defence-grade compression springs.

Inspection Parameters

Every production batch is checked against these parameters before dispatch.

Free Length

Verified against drawing tolerance at 100% of batch

Outer Diameter

Checked with calibrated Vernier calipers to ±0.01 mm

Wire Diameter

Micrometer measurement at 3 points per spring

Squareness

End-face perpendicularity within permissible limits

Load at Test Length

Tested on load testing machines (200 kg / 2T / 10T)

Hardness

Rockwell/Brinell hardness post heat treatment

Surface Finish

Visual + tactile check for oxidation, plating uniformity

Coil Count

Active and total coil count verified per drawing

Material Certificate

Mill test certificate cross-checked for each lot