Enteha Group designs and builds custom industrial machines, robots and equipment. At its core are three experienced mechanical engineers, working with a wide network of collaborators — from industrial workshops to specialist engineers in analysis, quality control and consulting. On every project, each part of the work goes to the people best qualified for it, across the whole chain: concept and detailed design, engineering analysis, fabrication and assembly, quality control and commissioning.
Our members' track record includes 80 postal sorting robots built for Iran Post and a third-generation design produced as a 200-unit series, the first knee-prosthesis test rig of its kind in Iran, five industrial 3D printers, and awards including the Alborz Elite Prize and two second places at the Khwarizmi Youth Festival.
Our backgrounds complement each other: machine and robot design, mechatronics and automation; manufacturing, composites and quality control; and mechanism design, control and medical robotics. Between us we hold degrees from four of Iran's leading technical universities.
Our work has been recognised by the Alborz Elite Prize, the Khwarizmi Youth Festival, the Iran Industrial Design Festival and Sharif Science and Technology Park, and published in Scientific Reports and the International Journal of Mechanical Sciences.
The core team
Each project is led by the core member whose field it falls in; partner workshops and specialist engineers join for fabrication, analysis and quality control.
Hassan Nasiri Khonsari
Technical & Design DirectorMSc Applied Design, Sharif University of Technology · BSc Mechanical Engineering, IUST
Mechanical design of industrial machines and robots, carried through fabrication, assembly and commissioning. Laureate of the 64th Alborz Elite Prize and twice second-place winner at the Khwarizmi Youth Festival.
LinkedIn
Alireza Pirhaji
Manufacturing & Quality LeadMSc Manufacturing Engineering, Tarbiat Modares University · BSc Mechanical Engineering, Sharif University of Technology
Fabrication of industrial parts and structures, composites and 3D printing. Led production of the postal sorting robots and now runs contract fabrication, quality control and assembly of industrial part sets.
LinkedIn
Seyed Mostafa Banihashemi
Project & R&D LeadMSc Applied Design (Dynamics, Control & Robotics), Sharif University of Technology · BSc Mechanical Engineering, K. N. Toosi University
Mechanism design, control and medical robotics. Handles estimating, procurement and fabrication follow-up for the group's projects. Named top researcher of Sharif's mechanical engineering faculty in 2025.
LinkedInHonors & awards
National awards for the machines, robots and research of our team.
Laureate, 64th Alborz Elite Prize
One of 12 laureates in the Technologists & Inventors category, for the knee prosthesis constraint and stability test rig; with a commendation from Sharif University of Technology and a silver medal — 2026.
2nd place, 26th Khwarizmi Youth Festival
For the postal sorting robots — 2024.
2nd place, 24th Khwarizmi Youth Festival
For the knee prosthesis test rig, with a UNESCO certificate and a presidential commendation — 2022.
Best design, 4th Iran Industrial Design Festival
For the postal sorting robots — 2024.
Top startup, Sharif Science & Technology Park
For the postal sorting robots team — 2024.
Top researcher & technologist, Sharif
MSc level, Faculty of Mechanical Engineering, Research Week — 2025.
Publications
Journal and conference papers by the team.
A study of friction between bone and titanium (Ti6Al4V) implants made by selective laser melting (SLM). The friction coefficient was measured for different combinations of bone density, implant surface texture and load — results that support the design of custom orthopaedic implants matched to each patient's bone.
- Large deformation of shape-memory polymer-based lattice metamaterialsInternational Journal of Mechanical Sciences (Elsevier) · DOI ↗
- Prediction of Lower Limb Gait Trajectories in Patients with Cerebral Palsy Using Deep Learning ModelsICRoM 2025 — Best Paper
- Application of Deep Learning Models in Classification of Sagittal Gait Patterns Based on Rodda's Classification System in Patients with Cerebral PalsyICBME 2024
- Simulation and Fabrication of Auxetic Polymer Tube and Shape Memory Behavior9th International Conference on Manufacturing Engineering, Tehran · Link ↗
- Design and Control of a Cable-Driven Parallel Robot for Postural Alignment Improvement in Cerebral PalsyManuscript in preparation
Skills & software
Design & analysis
Manufacturing
Automation & control
Electronics & prototyping
Robotics & AI
Professional experience
Design & fabrication contracting — Enteha Group
Industrial parts, assemblies and structures: estimating and pricing, material procurement, managing machining, laser cutting, bending, rolling and welding, quality control and assembly.
Senior Mechanical Engineer
Part and assembly design, dimensional and weld inspection, and management of machining and external fabrication shops; more than 8,000 industrial parts delivered so far.
Production Mechanical Engineer (self-employed)
Contract fabrication, quality control and assembly of industrial part sets; leading an engineering team.
R&D Robotics Engineer
Lower-limb exoskeleton: concept design, actuator selection, structure and mechanism, detailed mechanical design.
Patent Examiner, Mechanical Engineering — Sharif University of Technology
Reviewing and evaluating patent applications in mechanical engineering.
Lecturer — University of Tehran, Kish International Campus
Taught Manufacturing Processes and Physics 2 in the second semester of 2023–24.
Lecturer & Teaching Assistant — Sharif University of Technology
Taught the Dynamics of Machinery and Measurement & Control laboratories; TA for Nonlinear Control, Medical Robotics, Musculoskeletal Biomechanics and Advanced Dynamics.
Research Assistant — Medical Robotics Lab, Sharif University of Technology
Research in medical and rehabilitation robotics, supervised by Dr Farzam Farahmand and Dr Saeed Behzadipour.
Production Supervisor — Postal Sorting Robots
Fabrication and production management of smart parcel-sorting robots for Iran Post; production line design to industrial standards; cost and process optimisation.
Mechanical Engineering Intern — construction 3D printing
Concept design, feasibility study and dynamic analysis of a construction-printing robot in ADAMS.
Product Design Manager (part-time)
Mechanical and electronic design of an omnidirectional mobile robot.
Head of Mechanical Engineering — Industrial Robotics
Mechanical development of industrial robots; managed the build of 50 sorting robots for Iran Post's Tehran distribution centre and 30 for Kermanshah, coordinating workshops and supervising the assembly and integration team.
Project Intern — Tehran City Theatre automation
Automation and stage machinery for the main hall of Tehran City Theatre.
Technical & R&D Specialist — metal forming
Design and assembly of machine parts, thread rolling and cold forging, measurement and quality control, GD&T.
Contact
For design, fabrication or automation projects, use the form below or reach us directly. Quotes are free and usually ready within one to two weeks.
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