Injection Moulding Division · Since 2010

Injection Moulding

Trusted by leading automotive and electronics OEMs, we specialise in the manufacture of precision-engineered plastic components for critical applications. Our product range includes duct assemblies, sun visors, automotive interior parts, refrigerator components and home appliance parts. With advanced injection moulding, welding, leak-testing and quality-control processes, we deliver components that consistently meet OEM expectations for durability, precision and defect-free performance.

Get a Quote Quality & Certifications

2010 Since · Sriperumbudur

31Injection Machines

120T–1300TTonnage Range

IATF 16949Certified

2010Established

What We Make

Inside the Injection Moulding division

Automobile Plastic Parts

Precision components for Korean Tier-1 automobile suppliers — duct assemblies, air filters, sun visors, speaker frames, UREA holders and canister cases.

Electronics Plastic Parts

Plastic components for leading electronics OEMs — refrigerators, washing machines, air conditioners and display units, with robotic part handling.

Specifications

Capabilities at a glance

Machine Range

31 total · 120T–1300T (horizontal & vertical)

Tonnage

120T – 1300T

Materials

PP, ABS, PC/ABS, HIPS

Tolerance

±0.05 mm on critical features

Secondary Ops

Hot plate / vibration welding · leak test

Certification

IATF 16949:2016 · Hyundai SQ Mark

Korean Tier-1

INZI Controls, DAS Auto, KOC, Yong-San, Korea Fuel Tech

Key Features

Built for OEM expectations

31 Injection MachinesHorizontal (25) and vertical (5) machines from 120T to 1300T.

In-House Tool RoomOwn mould fabrication and scheduled periodic maintenance.

Hot Plate Welding3 welding + 2 assembly lines and 6 leak-test lines.

Vibration Welding1 line for UREA holder assembly — air-pressure leak tested.

Parts & Applications

Duct Assembly Extension Air Filter Housing Windshield Washer Reservoir Sun Visor Body Speaker Frame UREA Holder Canister Case Refrigerator & Appliance Parts

Our Divisions

Explore the rest of YJ Polytec

Since 2023

Wire Harness

Reliable, high-performance wiring harness solutions for the automotive industry — complex assemblies for Hyundai, Kia and next-generation EV platforms, IATF 16949 certified and Hyundai SQ Mark approved.

Explore division

Since 2010

Hot Plate Welding

Advanced hot plate welding for robust, leak-proof plastic assemblies — controlled heat and pressure for our duct sub-assemblies, with every batch air-pressure leak-tested.

Explore division

Since 2010

Vibration Welding

Vibration welding for robust, leak-proof plastic assemblies — frictional heat at the joint for superior strength and durability, ideal for inlet and adaptor assemblies.

Explore division

Since 2010

Air Cleaner Assembly

Complete automotive air cleaner units — from precision-moulded housings to fully assembled air-intake systems with filter and seal assembly, ready for vehicle installation.

Explore division

Since 2023

CNC Bending Process

Advanced CNC bending technology producing precision-formed metal components with exceptional accuracy — complex geometries and tight tolerances for automotive applications.

Explore division

Since 2023

Pleating & Paper Cutting

Advanced paper cutting and pleating technology for high-performance filter elements — precise dimensions and uniform pleat geometry that maximise filtration area and airflow.

Explore division

Have a Injection Moulding requirement?

Send us your drawing or specification — we'll come back with a clear, honest plan.

Get a Quote +91 97907 67089