Business Details
39 Years
experience
Trusted Mechanical Engineering Services for Product Development
Since 1987, DJH Engineering Center has been a leader in mechanical engineering and product development for construction, mining, aerospace, and mobile equipment. With over 30 years of experience serving government and industry, we combine analytical expertise with ISO 9001:2015-certified processes to deliver innovative, cost-effective solutions. Our dual offices in Salt Lake City (15+ engineers) and Slovakia (90+ engineers) provide global reach while maintaining localized project leadership. We specialize in full-cycle product development, from concept generation and structural analysis to prototype manufacturing and production implementation. Our commitment to quality is reinforced by bi-annual ISO audits and robust data security protocols, including encrypted file transfers and restricted access controls.With 2500+ successful projects and 27 patents, we prioritize client success through technical excellence and continuous improvement. Our engineers utilize advanced software and high-performance computing to optimize designs for performance and cost efficiency, serving six market sectors including agriculture, automotive, and aerospace. This dedication to precision, innovation, and client partnership has earned us 15+ industry awards and a reputation as a trusted engineering partner.
Services
Product design
Product analysis
Technical consulting
Benchmark studies
Value improvement
Details
- Year established: 1987
Highlights and features
- 30+ years of experience in mechanical engineering and product development
- ISO 9001:2015-certified quality management system
- 100+ engineers across US and EU offices for global support
- Full-cycle engineering services from concept to production
- Advanced FEA and computational analysis capabilities
Associations and certifications
- ISO 9001:2015
Services
Product design
Our analytically-centered design process creates high-quality, cost-effective product solutions using advanced software and 30+ years of industry expertise. We handle full-cycle development from concept generation to production implementation, ensuring optimal performance and manufacturability. Our engineers specialize in structural analysis, 3D modeling, and design validation for complex mechanical systems across multiple industries.
Product analysis
Finite Element Analysis (FEA) expertise reduces development timelines through advanced simulation techniques. We perform static/dynamic analysis, fatigue life calculations, and topology optimization using high-performance computing clusters. Our services eliminate costly physical testing through accurate virtual prototyping while maintaining compliance with industry standards for mechanical systems.
Technical consulting
Comprehensive technical guidance covering design validation, failure analysis, and process optimization. Our consultants provide expert recommendations on material selection, manufacturing processes, and performance improvements while maintaining strict confidentiality protocols. Services include stress testing, load case development, and bolted joint analysis for complex mechanical systems.
Benchmark studies
We conduct ethical benchmarking to identify technical trends and competitive advantages for product development. Our studies compare industry best practices with client requirements to inform design improvements. Services include third-party testing coordination and technical feature analysis to accelerate product innovation cycles.
Value improvement
Specialized cost optimization techniques maintain product performance while improving profitability. We analyze manufacturing processes, material selection, and component design to identify savings opportunities across production lifecycles. Services include casting conversion, part simplification, and high-strength steel implementation for heavy machinery and consumer products.
People
Patrick Hvolka
President
Patrick Hvolka leads DJH Engineering Center's strategic direction with extensive experience in mechanical engineering and product development. He oversees global operations and client relationships while maintaining technical excellence standards across all projects.
Daniel Wilson
Vice President of Operations
Daniel Wilson manages operational efficiency and resource allocation for DJH Engineering Center. With deep expertise in engineering project management, he ensures timely delivery of complex development programs across multiple industry sectors.
David Rix
Vice President of Engineering
David Rix leads technical operations and engineering standards at DJH Engineering Center. He oversees the development of innovative design methodologies and ensures adherence to ISO 9001:2015 quality requirements across all engineering deliverables.
Shane Anderson
Chief Engineer
Shane Anderson directs engineering execution in Salt Lake City, specializing in advanced mechanical systems analysis. He leads technical teams in structural validation, prototype development, and production implementation for complex industrial equipment.
Jn Feja
Director
Jn Feja manages DJH Engineering Center's Slovakia operations, overseeing 90+ engineers delivering European client projects. He focuses on technical excellence and process optimization for product development programs in automotive and industrial sectors.
Questions
What engineering services do you specialize in?
We specialize in product design, finite element analysis, technical consulting, benchmark studies, and value improvement for mechanical systems across multiple industries.
How long have you been in business?
DJH Engineering Center has provided engineering services since 1987, with over 30 years of experience in product development and analysis.
Are you ISO 9001 certified?
Yes, we have maintained ISO 9001:2015 certification since 2015 for design of machines and mechanical engineering services.
How do you protect client data?
We use encrypted file transfers, restricted access controls, daily backups, and secure offsite storage with biometric security systems in our facilities.
What industries do you serve?
We serve construction, mining, aerospace, agriculture, automotive, and oil-gas industries with specialized engineering solutions for mobile equipment.
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