About
DSM AS manufactures high-strength and fatigue-critical components for demanding oil & gas and industrial environments.
Combining extensive machining expertise, controlled processes and a strong network of specialized partners, DSM AS delivers reliable manufacturing solutions from raw material to finished components with controlled traceability and documentation throughout the manufacturing process.
Our focus is on technical understanding, process control and repeatability, supporting both development projects and stable long-term production.
Through close cooperation with customers and suppliers, DSM AS also contributes practical manufacturing, material and surface engineering expertise related to design optimization and process improvements that can add value by improving manufacturability, component performance and long-term reliability.
Typical component sizes range from Ø50–Ø382 mm with lengths up to 2500 mm. Our core capability is machining medium to large components, typically Ø120–Ø340 mm with lengths of 500–2000 mm, enabling stable machining conditions and efficient internal machining operations.
The extended 2500 mm machine configuration provides additional flexibility for long components and improved support conditions during demanding machining operations, including deep internal machining, drilling and boring.
As a manufacturing partner, DSM AS also produces smaller or significantly larger components when required as part of complete assemblies, customer projects or integrated mechanical systems.
Typical applications and components include:
• Load-bearing shafts, mandrels and long cylindrical components
• Pup joints, X-overs, subs, threaded connections and similar tool joint components
• Precision sleeves, housings, sensor bodies and valve components
• J-slot sleeves, bodies and other fatigue-critical mechanical components
• Balls, slips, dogs, drag blocks, bearing components, linkage systems and similar high-integrity mechanical components
Production
DSM AS performs precision CNC machining of high-strength and fatigue-critical components for demanding oil & gas and industrial applications.
Production is based on controlled machining processes, stable machining conditions and practical manufacturing experience developed through demanding machining operations and critical component applications.
Particular focus is placed on process stability, repeatability and dimensional control throughout the manufacturing process, supporting reliable component performance and consistent production quality.
Machines and equipment
DSM AS operates modern multi-function CNC machines capable of machining complex high-strength components up to Ø381 × 2500 mm.
The machines are supported by complementary equipment and tooling that enable flexible setups, prototype work and controlled machining of long and geometrically demanding components.
The machine configuration is designed to support stable machining processes, including long components, deep internal features and high-precision operations.
Integrated probing systems, high-pressure coolant and rigid setups ensure efficient machining and consistent results across a wide range of applications.
CNC Machine 1
Mazak IG 400 x 2500mm
Manufactured: 08-2013
- MAZATROL MATRIX
- Max swing Ø760mm
- Max length 2500mm
- Spindle bore Ø102mm
- Chuck Ø315mm
- Steady rest Ø52-Ø382
- Simultaneous 5 axis
- 80 tool magazine
- Capto C6
- Milling spindle length 500mm
- 70 Bar high pressure coolant
- Renishaw probe
- Tailstock MT 5
- Cromar Series 3 chip conveyor
CNC Machine 2
Mazak IG I450H x 2500mm
Manufactured: 09-2021
- MAZATROL SMOOTH AI
- Max swing Ø810
- Max length 2500mm
- Spindle bore Ø102mm
- Chuck Ø315mm
- Steady rest Ø35-Ø340
- Simultaneous 5 axis
- 112 tool magazine
- Capto C6
- Milling spindle length 430mm
- 70 Bar high pressure coolant
- Renishaw probe
- Tailstock MT 5
- Cromar Series 4 chip conveyor
- Long tool stocker (3 pos, 1m)
Manual Lathe
Weiler DA260 x 1500mm
Manufactured: 06-2015
- HEIDENHAIN ND 7013
- Max swing Ø535
- Max length 1500mm
- Spindle bore Ø71mm
- Chuck Ø250mm
- Steady rest Ø35-Ø250
- Following rest
- 12 tool offset memory
- Multifix tool post, type B
- 4-jaw independent chuck Ø400mm
- Magnetic chuck Ø400
- Tailstock MT 5
SAW
MEBA 560A
- Capacity Ø560mm Round and 560x700 Rectangular
Programming & Process Control
Advanced CAD/CAM systems are used to support efficient programming, simulation and optimization of complex machining operations.
Programming is closely integrated with machining processes, ensuring optimized toolpaths, reduced setup time and predictable results.
Materials
DSM AS sources high-quality materials through a well-established network of trusted suppliers, ensuring compliance with a wide range of international specifications and industry standards.
We have extensive experience working with high-strength alloy steels, tool steels and corrosion-resistant alloys used in demanding oil & gas and industrial environments. Through close collaboration with material suppliers, mills and heat treatment partners, we ensure that materials are delivered with the required properties, documentation and consistency.
To support efficient production, consistent quality and predictable lead times, we maintain a substantial stock of commonly used materials for oil & gas applications, ensuring greater consistency, traceability and control of material quality throughout the manufacturing process.
Our stock typically includes:
• AISI 4140 – 80 ksi, conforming to API 7-1 / API 6A / NACE MR0175 (Ø2"–Ø12.25")
• AISI 4145 – 110 ksi, conforming to API 7-1 / API 6A (Ø2"–Ø12.25")
• AISI 4145 – 125 ksi, conforming to API 7-1 / API 6A (Ø2"–Ø10")
• AISI 4330 – 150 ksi, conforming to API 7-1 / API 6A (Ø2.5"–Ø8.75")
• Tubes and bored bars in various dimensions and grades, conforming to NACE MR0175, API 6A, API 5CT and related specifications
• Alloy 718 (Inconel 718), conforming to API 6A (Ø0.625"–Ø2.5")
• Alloy K-500 (Monel K-500), conforming to API 6A (Ø1.75"–Ø2.5")
• Aluminium 6082-T6 (Ø16–Ø320 mm)
• Tool steels in round bar and block formats, including grades such as Dievar, Unimax, Caldie, Calmax and Idun, as well as selected Toolox grades, available from stock in limited quantities or with short lead times through our supplier network.
Additional materials and specifications can be sourced upon request through our established supplier network.
Threading & Fatigue Enhancement
Threading at DSM AS is performed as an integrated part of the manufacturing process for complete components, where thread geometry and surface condition are critical for load transfer and fatigue performance.
We do not operate as a standalone threading or cold working provider, but as a manufacturing partner delivering fully machined components including threaded connections.
DSM AS has extensive experience machining thread forms used in oilfield and industrial applications. Dedicated software, gauges, tooling and structured internal procedures are used to ensure dimensional accuracy, repeatability and compliance with relevant standards.
Typical thread forms include:
• API NC – according to API Spec 7-2, ISO 10424-2
• API REG – according to API Spec 7-2, ISO 10424-2
• API FH – according to API Spec 7-2, ISO 10424-2
• API Sharp V tubing connections – NUE and EUE according to API Spec 5A / 5B
• PAC connections
• Ratchet and Buttress threads
Cold Root Rolling / Cold Working
DSM AS has dedicated equipment and structured internal procedures for cold root rolling / cold working of critical thread forms.
Cold root rolling is a controlled plastic deformation process applied to thread roots to improve fatigue resistance, surface integrity and repeatable performance in demanding applications.
Cold working is commonly applied in critical service environments where enhanced fatigue performance is required, including components manufactured to customer or industry standards such as API Spec 7-2, ISO 10424-2, NS-1 and DS-1.
Supported cold work profiles include:
• V0.038
• V0.040
• V0.050
• H90
Dedicated equipment and controlled process execution support reliable strengthening of critical thread roots, contributing to improved fatigue resistance and long-term performance.
Shot Peening
DSM AS has experience with shot peening of threads and other geometries where fatigue performance is critical.
Shot peening introduces compressive residual stresses in the material surface, improving fatigue strength and resistance to stress-corrosion cracking.
The process can be applied for selected applications where it forms part of a broader controlled manufacturing scope.
QHSE & Governance
DSM AS is committed to delivering high-quality machined components while maintaining safe working conditions and responsible environmental practices.
Our production philosophy is based on controlled machining processes, reliable material supply and monitoring throughout the manufacturing workflow. This ensures consistent quality, traceability and dependable performance for components used in demanding industrial environments.
Operations are conducted according to structured internal procedures aligned with ISO 9001 methodology, supporting systematic quality management and continuous improvement.
Quality
Precision machining of high-strength materials requires control of the entire manufacturing process, from raw material to finished component.
Quality assurance activities typically include:
• Material certification and traceability from approved suppliers
• Verification of dimensions during and after machining
• Control of machining processes and tooling setups
• Documentation of production steps when required by customer specifications
• Final dimensional inspection prior to delivery
For critical components, additional inspection and documentation can be provided according to customer requirements.
Inspection and NDT
Inspection and verification are integrated into the manufacturing process to ensure dimensional accuracy and compliance with customer specifications.
Inspection capability includes:
• PT – Liquid Penetrant Testing
• MT – Magnetic Particle Testing
• Hardness verification
• Dimensional inspection
DSM AS has in-house ISO 9712 Level 3 competence in PT and MT, enabling qualified evaluation of inspection requirements and procedures.
Dimensional verification is performed using precision measuring equipment and Renishaw probing systems integrated in CNC machines, allowing in-process and post-process verification.
Through close integration between CAD/CAM, machining processes and inspection methods, DSM AS is able to verify complex geometries using both conventional and specialized measurement techniques.
When required, inspection and testing can be coordinated with certified third-party laboratories and testing institutes.
Health and Safety
A safe working environment is essential for reliable production and consistent machining quality.
Key principles include:
• Safe operation of CNC machines and workshop equipment
• Continuous focus on risk awareness and safe working practices
• Reduction of operator exposure to coolant mist, particles and noise through integrated technical solutions
• Ongoing development of competence and technical understanding
Environmental Responsibility
DSM AS works actively to reduce environmental impact through efficient use of materials, energy and consumables.
Environmental practices include:
• Optimized machining processes to reduce tool wear and material waste
• Use of high-quality tooling and equipment to ensure long service life and stable processes
• Coolant and chip handling systems designed to extend fluid life and reduce waste
• Reuse of packaging materials and efficient logistics solutions to reduce transport impact
• Sorting and recycling of metals and materials
• Maintenance practices aimed at preventing leaks and extending equipment lifetime
Environmental improvements are based on practical experience and continuous optimization of daily operations.
Governance
DSM AS is committed to conducting business in a responsible, transparent and professional manner. The company’s governance principles are based on accountability, technical integrity, structured decision-making and long-term customer relationships.
Operations are managed through clearly defined internal responsibilities and practical procedures designed to support reliable execution, consistent quality and controlled project delivery.
Governance principles include:
• Clear communication and documentation throughout projects and manufacturing activities
• Structured evaluation of technical requirements, risks and deviations prior to production start
• Controlled handling of customer specifications, revisions and manufacturing documentation
• Traceability of materials, processes and inspection activities where required by customer or project scope
• Continuous improvement of internal procedures, competence and operational practices
• Responsible supplier and subcontractor selection based on technical capability, reliability and quality performance
• Compliance with applicable contractual, technical and regulatory requirements
• Focus on ethical business conduct, professional integrity and long-term cooperation with customers and partners
DSM AS aims to maintain a practical and efficient management structure where technical understanding, production experience and quality awareness are closely integrated into daily operations and decision-making processes.
Where required, the company cooperates with external specialists, laboratories, certification bodies and qualified subcontractors to ensure compliance with customer-specific technical and quality requirements.
Business Integrity and Responsibility
DSM AS supports responsible business practices and expects professional conduct throughout its operations and supply chain. The company works to maintain:
• Fair and transparent business practices
• Respect for contractual obligations and confidentiality
• Responsible handling of customer information and technical documentation
• Awareness of environmental, health and safety responsibilities
• Continuous evaluation and improvement of operational and organizational practices
The company’s governance philosophy is based on practical control, technical responsibility and long-term operational reliability rather than unnecessary administrative complexity.
