Aluminium Knuckle

Alloy Knuckle & Lower Control Arm through Counter Pressure Casting

Overview

Precision Cast Aluminium Knuckles

SSWL has expanded its expertise into Alloy Knuckle & lower control arm through Counter Pressure Casting (CPC) process, with our R&D Team leading the way in this innovative endeavour.

The transition from traditional Iron Knuckles to Aluminium Alloy Knuckles represents a significant advancement in the pursuit of light-weighting, sustainability, and enhanced vehicle performance.

Through the utilization of cutting-edge CAD 3D, FEA, and Mold Flow simulation tools, we prioritize structural integrity and safety by conducting thorough analyses of each design.

Aluminium alloys provide superior resistance to corrosion and wear — making these knuckles well-suited for high-stress chassis environments where reliability is non-negotiable.

These meticulously engineered components are casted and precision-machined to exact specifications with our in-house capability, ensuring optimal performance and durability.

Signature Process

Counter Pressure Casting — superior on every axis.

Counter Pressure Casting (CPC) combines the economy of mass production with the reliability of premium casting. Controlled laminar flow during metal filling, refined microstructure, and a strength-to-stress ratio that outperforms both LPDC and GDC — perfect for chassis components where safety is non-negotiable.

Currently in mass production for front and rear steering knuckles, with upper and lower control arms following the same process. Validated to deliver consistent component quality at automotive-grade volumes.

Under Mass Production

Better

Mechanical Properties vs LPDC / GDC

Higher

Strength-to-Stress Ratio

Compact

Microstructure

Laminar

Controlled Metal Filling Flow

Casting Method Comparison

Why CPC outperforms LPDC and GDC

Criterion

CPC

LPDC

GDC

Mechanical Properties

CPC:

Superior

LPDC:

Good

GDC:

Acceptable

Microstructure

CPC:

Compact, refined

LPDC:

Coarser

GDC:

Coarser

Radiography Defect Level

CPC:

Lowest defects

LPDC:

Moderate

GDC:

Moderate

Strength-to-Stress Ratio

CPC:

Highest — improved ductility

LPDC:

Lower

GDC:

Lower

Casting Soundness

CPC:

Controlled laminar flow

LPDC:

Standard

GDC:

Standard

Process Flow

From raw aluminium to finished knuckle

STEP 01

Raw Material

STEP 02

Melting

STEP 03

Degassing + DI Checking

STEP 04

CPC Casting

STEP 05

Heat Treatment + FDPT

STEP 06

X-Ray Inspection

STEP 07

Trimming & Gate Cutting

STEP 08

Machining + Gauging + Assembly + Final QA

Engineering & CAE

Validated across five CAE domains

Strength, fatigue, NVH, stiffness and casting — every knuckle and lower control arm is engineered with the same multi-domain CAE rigour used on our alloy wheels, plus mould-flow simulation via AnyCasting and external technical-support partners.