THE STP COMPANY GROUP
The company group has proven its skills as a partner for its customers through the achievement of perfect cost-effectiveness ratios, in particular for the manufacture of high-precision parts and/or components for the areas of gears, engines and transmissions.
KEY FIGURES
| Annual turnover | approx. 134 m EUR |
| Turnover share automotive | 73 % |
| Employees | 350 |
| Production locations | 5 |
FORGING FOR THE FUTURE
STP perfects its components through a systematic interchange of development using the latest data communication systems in the area of engineering and development. The challenge is to present our customers with a perfect component solution at an optimal cost and reduced weight while meeting increasing demands. For this we similarly offer machining using highly modern machinery up to the finished part and/or installation component. We process approx. 31,000 t of steel annually and produce from this more than 10 m forged parts and 3 m machined components.
MACHINERY
We use the latest hammer lines and CNC manufacturing technology in order to ensure extreme precision, the shortest possible manufacturing times and a high level of repeatable accuracy. WTP has a broad range of various machines which meet all our clients’ challenges and wishes.
FORGE TECHNOLOGY
- Semi-automated hammer lines with an output range of 5 mt
- Press lines with an output range of 1,000 to/1,250 to/1,600 to/2,500 to/3,150 to/4,000 to
- Fully automated ring rolling machines (maximum diameter 310 mm/maximum height 90 mm)
- Fully automatic transfer forging line of 2,500 to
- Heat treatment integrated into the forming process
PRECISION MACHINING
- Fully automated CNC turning machines and machining centres
- Spline rolling mills
- Gear shaping machines
- Broaching machines
- Deep-hole drilling units
SCHMIEDETECHNIK PLETTENBERG
PLANT 1
| Location | Plettenberg (NRW) |
| Total area | 33.000 sqm |
| Employees | 150 |
Production of
| approx. 17 m forgings in plants 1 and 3 |
SCHMIEDETECHNIK PLETTENBERG
PLANT 3
| Location | Plettenberg (NRW) |
| Total area | 15.600 sqm |
| Employees | 70 |
Production
| 17 m forgings in plants 1 and 3 |
WERKZEUGTECHNIK PLETTENBERG
SEQUATEC STP PRECISION COMPONENTS
| Location | Bad Emstal (Hessen) |
| Total area | 40.000 sqm |
| Employees | 80 |
| Production | of 6 m machined components |
WÄRMETECHNIK HALVER
| Location | Halver (NRW) |
| Total area | 4.500 sqm |
| Employees | 20 |
MUNJAL STP INDUSTRIES PRIVATE LIMITED
SCHMIEDETECHNIK PLETTENBERG BRIEF FILM
Precision and reliability from the very start – Our customers place demands on our skills on a daily basis. This particularly applies to the constantly new development of highly-stressed components.
Our Mission:
Leading through quality & reliability
Securing the future with robust processes and solutions
Our Approach:
Continuous improvement & sustainable solutions
Competitiveness through ongoing enhancement
Expertise and processes from a single source
Manufacturing expertise, know-how, and modern methods for durable precision parts.
Highest standards for quality and sustainability
Processes and components with maximum quality, safety, and responsibility.
Global solutions for a secure future
International value creation for tailor-made, sustainable precision parts.
STP SALES REPRESENTATIVE
Hj. Edwards & Co AB
Metangatan 1P
SE-431 53 MÖLNDAL
QUALITY + ENVIRONMENT
As a partner to the international automotive industry we are certified to:
- IATF 16949:2016
- DIN EN ISO 9001:2015
- ISO 14001:2015
- ISO 50001:2018
- TISAX
The certificates are available to you below for downloading.
PURCHASING
The high quality of our products is very substantially influenced by the quality of the goods and services that we purchase. As the share of the purchased volume is more than 50 % of our turnover, the purchasing process has a great influence on the achievement of our company goals.
Our customers expect short delivery times, stable prices, a high quality level and consistent product innovations from us.
We fundamentally endeavour to have long-term, trusting business relationships with our suppliers with the aim of continuously improving the services and processes in close collaboration. The task of the Purchasing department is the securing of supplies as and when they are needed for all required goods and services at an optimal price performance ratio in order to guarantee an uninterrupted production flow.
We invite you, as an innovative supplier, to take on this challenge together with us. You can obtain information here on our procurement programme, our requirements and the organisation of the Purchasing department of the STP Group.
Procurement programme
- Raw materials (high-grade steel bars, tool steel, forged parts)
- Technical purchasing (investments, maintenance)
- General purchasing (auxiliary and operating materials, services)
- External machining of forged parts (mechanical processing, heat treatment)
- Trading goods
Purchasing volume
- Total purchase volume > 55 m €
- Investment volume > 3 m €
- Steel purchasing volume approx. 31,000 t
Requirements: You should fulfil the following conditions in order to become an STP supplier:
- Certification to DIN EN ISO 9001/IATF 16949
- Flexibility in your capacities
- Tried and tested quality processes
- A dial-up connection for the exchange of drawing and business data
Purchasing offices
- Central Purchasing Plettenberg
- Purchasing WTP Plettenberg
- Purchasing Bad Emstal
Our History
- 180 Years of Experience

1840
Foundation of
Hammerwerk Schulte

1892
Foundation of
Franz Mayer

1902
Foundation of
Brüninghaus

1923
Foundation of
Albert Biecker
Today:
Werkzeugtechnik Plettenberg

1962
Foundation of plettac-Schmiede

1995
Merger to plettac-Umformtechnik

2003
Takeover of Plettac by Dr. Rohland KG
Today: Schmiedetechnik Plettenberg

2005
Takeover of CNC-Zerspanungstechnik Blug GmbH
Today: STP Precision Components

2014
Sale of plant II and takeover of Sequatec GmbH
Today: Sequatec STP

2016
100% share hold by family Müller/Pratley

2022
Takeover of HK Oberflächentechnik
Today: Wärmetechnik Halver

2025
Joint Venture HERO Motors in India
Cornel Müller sole shareholder
Consolidation of machining