HELICAL EXTENSION & TENSION SPRINGS

Precision Spring Components — Automotive Industry

🔹 Description / Overview

Helical Extension and Tension Springs are mechanical components designed to store energy and provide controlled force in automotive systems. Engineered for precision, these springs ensure consistent load, smooth operation, and durability in engines, suspensions, brake assemblies, and other automotive applications.

Material / OptionDetails
High Carbon Steel (Music Wire / 60Si7 / 65Mn)Standard automotive springs
Stainless Steel (SS304 / SS316)Corrosion-resistant applications
Alloy SteelHigh-strength, fatigue-resistant springs
Coatings / FinishesZinc plated, black oxide, phosphate, powder coated
ParameterRange / Options
Wire Diameter0.3 mm – 12 mm
Outer Diameter5 mm – 150 mm
Free Length10 mm – 400 mm
TypeHelical Extension / Tension
Load RangeAs per design / OEM requirement
EndsHooks, Loops, Custom Forms
StandardsASTM, EN, ISO, OEM specifications

🔹 Automotive Applications

  • Engine Valve Assemblies
  • Clutch Mechanisms
  • Brake & Pedal Return Springs
  • Suspension Components
  • Door & Hood Latches
  • Seat & Interior Mechanisms
  • Fuel & Throttle Return Mechanisms
Performance FeatureDetails
High Fatigue ResistanceLong operational life under repeated load
Consistent Load & DeflectionPrecise force management
Corrosion & Wear ResistantWith optional surface coatings
Customizable DesignAvailable in various sizes, wire diameters, and hooks
OEM / Custom RequirementsDesigned to meet automotive specifications

🔹 Packing & Supply

  • Individually packaged or bulk in cartons
  • Protective anti-rust coating for steel springs
  • Labels with Material, Dimensions, Load, and QTY
  • Export-ready packing for safe shipment
ParameterDetails
Small Orders50 – 500 pcs
Medium Orders500 – 5,000 pcs
Bulk / Project OrdersAs per client requirement
Minimum Order Quantity (MOQ)50 pcs