- Windsor Machines is a sixty-year-old Indian builder of the heavy equipment that shapes everyday plastic and metal goods - it makes the machines that make everything from car bumpers to PVC pipes. The company was founded in 1963 on the idea of giving customers the lowest running cost per kilo of material processed, and it has since put more than 35,000 machines into factories across 65 countries. That same approach - build energy-efficient, made-in-India machinery and now bundle it with precision tooling - was reset in 2024 when a new promoter took control, infused fresh capital, and consolidated scattered plants into a single integrated factory in Rajkot.
Business segments
Three manufacturing engines, all now running out of one integrated plant - an injection moulding workhorse protected by import duties, a CNC metal-cutting division built through acquisition, and an extrusion business with a perpetual global technology licence - each serving distinct industrial customers.
1. Injection moulding: the flagship plastic-shaping business
It builds the presses that turn plastic granules into car dashboards, bottle crates and medical parts, and it has just been shielded from Chinese competition by a five-year anti-dumping duty.
- India’s largest homegrown machine - the division launched the KL 3200-ton press in September 2024, the biggest injection moulding machine ever made locally, and is already designing a 4000-ton version to extend the range.
- A tariff wall just went up - in June 2025, the government imposed anti-dumping duties of up to 63% on injection moulding machines imported from China and Taiwan, giving Windsor’s made-in-India portfolio a direct price shield for five years.
- Energy efficiency is the sales pitch - the all-electric Winelec series and a new hydro-motor alternative for the plasticizing screw cut energy consumption by 30% to 50% on that function alone, which matters because electricity is a big part of a moulder’s running cost.
- Smaller footprint, same output - the two-platen KL series machines take up 15-20% less factory floor space for the same mould-opening daylight compared with conventional designs, a selling point when shopfloor real estate is tight.
2. CNC machinery: the metal-cutting engine, bought not built
Windsor entered precision metal-cutting by acquiring a ready-made CNC manufacturer and immediately added a tooling specialist so it can sell a machine and the fixtures to hold the workpiece in a single package.
- Acquired, then absorbed - the division was created in February 2025 when Windsor bought 100% of Global CNC, a Rajkot-based maker of turning centres and machining centres with 320 employees, and amalgamated it into the parent company a year later.
- Tooling bundled in - a second acquisition in February 2026 brought in Unitech Workholding Systems, which has designed over 4,000 fixtures and clamping systems, so Windsor can now offer a complete “machine plus tooling” package rather than just the hardware.
- Serves the precision supply chain - the product range spans turning machines, vertical and horizontal machining centres, and double-column lathes, feeding industries that need tight tolerances: aerospace, defence, oil and gas, medical, and railways.
3. Extrusion: the continuous-plastic line with a German technology licence
It makes the long production lines that churn out plastic pipe and multi-layer packaging film, and it holds a perpetual, royalty-free worldwide licence from a German firm that has agreed to exit the market.
- A global licence with no royalties - in March 2024, Windsor signed a deal with Germany’s Kuhne Anlagenbau for the ‘Smart Bubble’ blown-film technology, giving it a perpetual, royalty-free right to make and sell lines up to 11 layers and 1000 kg per hour anywhere in the world, while Kuhne stops producing them.
- Pushing output higher - the division is developing India’s highest-capacity blown-film line at 1000 kg per hour, roughly 25% more output than anything currently available, which matters because faster lines mean lower conversion cost per kilo of film.
- Two distinct product families - on one side, parallel twin-screw extruders for rigid PVC and CPVC pipes used in construction and agriculture; on the other, multi-layer blown-film lines for flexible packaging, with turnkey project capability for film customers.
- Smaller scale, later move - extrusion manufacturing was the last to shift into the new integrated plant, with shifting substantially completed by March 31, 2026, and the division operates at a capacity of 300 machines a year with an order book of ₹70 crore.
Group structure and partners
A new promoter took control in late 2024, cleaned house by shedding two loss-making foreign and domestic subsidiaries, and recapitalised the business with a large equity raise.
- Plutus Investments and Holding acquired a 53.9% stake from the previous promoter in September 2024 and infused ₹200 crore as part of a total ₹725 crore preferential issue in January 2025.
- The energy-storage subsidiary Rcube was sold for ₹40 lakh in February 2025 after three years of no progress, removing a non-core distraction.
- The two Indian acquisitions that now form the CNC division - Global CNC and Unitech Workholding - were both bought for cash-and-stock consideration and became wholly owned before being amalgamated or consolidated under Windsor.
- The company’s key external technology relationship is the perpetual, royalty-free worldwide licence from Kunhe Anlagenbau GMBH for blown-film extrusion lines, which effectively transfers that product line’s global market to Windsor.