A Mechanical and Electrical engineering Graduate from the Banaras Hindu University, India Mr. S.N. Sinha began his career with Martin and Bern in Calcutta, India followed by Hindustan Motors. He then went to England to work with a design firm that designed tools and fixtures. He was fondly known as “Sam” by his colleagues and was offered a partnership in the design firm. However, due to family reasons he decided to relocate back to India.

While in England itself he was recruited by Tata Engineering & Locomotive Company (TELCO) which is now known as Tata Motors and sent to Germany to work in the tool and fixture design division of Daimler Benz before relocating back to India.

Having spent a year in Daimler Benz he came back and joined the design department of TELCO at Jamshedpur, India. During his time in Jamshedpur he designed special purpose machines, jigs, tools and fixtures especially a scrap bailing press.

In 1960 he moved to Pune to set up an Engineering Division at The Raja Bahadur Mills where he designed and manufactured the famous Pittie Drafting Machines. The engineering division was an innovation led company making jigs and fixtures, special purpose machines like a centreless grinding machine and fixtures like the quick-change chuck for drilling machines.

In 1970 he joined Mather and Platt in Pune to streamline their manufacture of food processing machinery. It was during his tenure at Mather and Platt that TELCO was setting up their manufacturing facility in Pune and he was personally requested by Mr. Sumant Moolgaonkar the CEO of TELCO to re-join TELCO as head of the press tool division. Here, he designed and tooled up for the new semi-forward trucks that TELCO introduced in the market.

In 1974 he decided to become an entrepreneur and went to the USA for patenting his idea of manufacturing press tools. The patent bearing patent no. US3910138A was granted to him and he founded Precision Pressing Manufacturers (PPM) and Pioneer Tool and Die Company (PTD) in the year 1977 in Pune, India.

HISTORICAL TIMELINE

Precision Pressing Manufacturers (PPM) and Pioneer Tool and Die Company (PTD)

1977

Mr. S.N. Sinha decided to start off as an entrepreneur with a new patented idea to make complex sheet metal punching tools without the need for sophisticated tool room machinery. Both firms were founded in same year.

The first tool that was designed and made was for the laminations required in the magneto for the JAWA motorcycle. This was a very complex tool and the only producer for these stampings at that time was Guest Keen Williams (GKW). This great success opened the doors to the world of automotive electrical laminations.

1984

PPM & PTD manufactured their first multi-cavity progressive tool for magneto laminations. We were a single source to Bajaj Auto Ltd. For the magneto laminations for their scooters.

1995

PPM forayed into the 4-wheeler segment and began manufacturing welded stator cores for automotive alternators. This was a revolutionary feat and we began our association with Lucas-TVS Ltd.

2000

PPM & PTD acquired the technology to manufacture auto-stacked lamination packs and started supplying cores for distributor-less ignition coils used in MPFI engines.

2008

We were constantly innovating and a breakthrough happened in 2008 for productionizing stator cores manufactured by the slinky (spiral) method. PPM & PTD also acquired the technology for in-die balancing of rotor cores in the same year.

2010

PPM setup building infrastructure for a state of the art tool room and a dedicated facility for producing slinky stator cores.

2012

PPM got approval for supplies of alternator stator cores to one of the global giants in auto-electricals and alternator manufacturing, Valeo.

2014

PPM developed technology to manufacture spiral stators in low thickness (0.5mm) material. PPM was also awarded an SQ mark certificate from Hyundai-Kia Motors for the exceptional quality level of its products.

PPM also developed very specific laminations for use in aerospace motors using special grade electrical steel having thickess of 0.178mm.

2019

PPM developed prototypes of spiral stators in even thinner lamination thickness. We are now capable of producing cores in 0.35mm thickness using the spiral method.

2020

PPM & PTD have designed a revolutionary concept for manufacturing axial flux motor cores. With axial flux motors, the form size of the motor is typically 1/5th that of conventional radial flux motors and typical efficiencies > 95% are observed.

The single largest challenge in mass manufacturing of axial flux motors is the manufacturing of the stator cores which are quite complex and not easy to get right. We now have a potential solution for this.

Current Leaders

The firm is currently managed by Mr. Subhash Sinha and his son Mr. Shrivatsa Sinha who continue the tradition of innovation and design.

Mr. Subhash Sinha worked alongside his father Late Mr. S.N. Sinha (1928 – 2011) right from day one and he, along with his brother Late Mr. Pravir Sinha (1956 – 2014) established and grew PPM and PTD to the organizations they are today.

Mr. Shrivatsa Sinha joined the family business in the year 2008 after a short stint of being an entrepreneur with a startup known as Iridium Designs which was into web-development and content management systems. He went on to pursuing an Executive Education course in 2015 at the prestigious Indian Institute of Management, Ahmedabad (IIM-A) in “Transforming Small and Medium Enterprises”.