Pentagon Machine

Who We Are

We build the products your customers bet their business on

Pentagon Machines is a precision contract manufacturing company based in Chennai, India. With over 45 years of experience, we support global and Indian OEMs with high-accuracy components and precision-engineered assemblies for demanding applications. As part of the Sellvinds Group, a family-owned organisation with a 65-year legacy, the company brings engineering depth, stability, and long-term thinking to every engagement.

We are a trusted Tier-1 partner for leading multinational organisations in Australia and India. Our strength lies in engineering discipline, manufacturing consistency, and long-term partnerships. Backed by advanced machining, assembly, and testing capabilities, we build components and assemblies that integrate seamlessly into complex supply chains where reliability is essential and precision is non-negotiable.
Operating out of two ISO 9001:2015 certified advanced manufacturing facilities totalling 43,200 square feet, we provide a “one-roof” solution for OEMs. Our core capabilities include CNC horizontal and vertical machining, high-precision gear cutting (hobbing and shaving), and clean-room assembly validated by automated test rigs.
Our workforce of 80 skilled professionals utilises advanced metrology equipment, including CNC CMM and high-resolution surface metrology, to ensure zero-defect quality and full traceability.
  • Faster development, fewer vendors
  • Design- & quality-focused feedback
  • Traceability you can trust
  • Proven reliability

Key Products

Precision Engineering Assemblies

Complex, multi-part assemblies engineered, built, and validated for demanding, business-critical applications.

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Hydraulic Valves & Gear Pumps

High-pressure hydraulic valves and gear pumps designed for reliability, performance, and long service life.

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Gearboxes

Power take-off gearboxes for leading transmission brands like Allison, Eaton, Hino, Isuzu, Mack, Mitsubishi, Volvo, and ZF.

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Engine Balancer Assemblies

Engine balancer assemblies manufactured to tight tolerances for smooth performance and durability.

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Precision Machined Components


High-accuracy machined components in steel, cast iron, ductile iron, and non-ferrous materials.

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Our Services

Gear Cutting

Manufacturing Engineering & Tooling

End-to-End Program Support

Assembly & Testing

Industries Served

Automotive

Precision components and assemblies for engine, transmission, and powertrain applications.
01

Commercial Vehicles

Robust, high-reliability parts and assemblies built for heavy-duty operating conditions.
02

Hydraulics & Fluid Power

High-pressure hydraulic valves, gear pumps, and sub-assemblies for performance-critical systems.
03

Power Transmission

Gears, shafts, and gearboxes engineered for accuracy, durability, and load-bearing applications.

04

Industrial Machinery


Precision-manufactured components and assemblies for complex industrial equipment.

05

Global OEM Programs

Long-running programs supporting international customers with consistent quality and supply.
06
Why Choose Us

Quality Mindset

Quality at Pentagon Machines is embedded into every process, decision and inspection, guided by engineering discipline, attention to detail, and a clear understanding of how each component performs in the real world.

From early manufacturability inputs to validation, testing, and traceability, quality is built into every stage of production. Reinforced through experience, process rigour, and long-term accountability, this mindset ensures consistency, reliability, and confidence across every program we support.

From Design for Manufacturing (DFM) and in-house tooling to PPAP/APQP validation, Pentagon offers single-partner accountability and faster development cycles. Partner with a legacy-driven engineering team that combines technical rigor with a commitment to Environmental, Social, and Governance (ESG) benchmarks.

Our USPs
  • Helical internal broaching capabilities enable specialised gear cutting methods that are complex and not easily replicable.
  • Design and manufacture of precision jigs, fixtures and gauges in-house to maintain strict control over assembly.
  • Strong DFM feedback optimises manufacturability and supports efficient scaling from development to production.
  • Flexible manufacturing suited to a wide variety of precision components in smaller volumes, supporting startups and small companies.
  • A consistent 99.99% on-time delivery record reflects disciplined planning, process control and long-term accountability.
  • Makino-Powered Precision Machining for Global OEMs
Our Expertise

How We Work

At Pentagon Machines, every engagement follows a disciplined, collaborative approach that’s designed to reduce risk, ensure manufacturability, and deliver consistent performance over the life of the program.

Align

Understand application requirements, standards, volumes, and quality expectations.

Engineer

Apply early design-for-manufacturing inputs, tooling development, and process planning.

Validate

Build prototypes and carry out functional, performance, and validation testing.

Deliver

Execute controlled ramp-up and production with defined quality controls.

Sustain

Manage engineering changes, reporting, traceability, and long-term program support.

Under One Roof Capability

DFM → Machining → Validated Testing → Clean Room Assembly
Pentagon Machines is a precision engineering and contract manufacturing company based in Chennai, India.

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