Mechanical Design Engineer (SPM & Test Rigs)

Role & responsibilities

Design and engineering

• Study customer specifications, tender documents and enquiries, and prepare concept layouts for SPMs and test rigs.
• Create 3D models and assemblies in SolidWorks base frames, fixtures, mounting brackets, guards, enclosures, couplings and shaft lines.
• Do basic design calculations: shaft and bearing selection, coupling and torque calculations, bolt and weld checks, frame stiffness, cylinder and actuator sizing.
• Select standard bought-out items motors, gearboxes, torque sensors, couplings, bearings, linear guides, ball screws, pneumatic and hydraulic components from vendor catalogues.
• Run simple FEA (SolidWorks Simulation) on critical members where required.

Drawings and documentation

• Prepare GA drawings, part drawings, fabrication and weldment drawings, and assembly drawings with proper GD&T, tolerances, fits and surface finish.
• Prepare and maintain the mechanical BOM with part numbers, material and quantity.
• Maintain revision control of models and drawings.
• Support preparation of design reports, design review presentations, O&M manuals and installation drawings for customers

Manufacturing and site support

• Release drawings to vendors and the shop floor, and clear their queries.
• Visit machining and fabrication vendors for stage inspection when needed.
• Support assembly, alignment and trials at our factory.
• Travel to customer sites for installation and commissioning support (short visits).

Costing and proposals

• Give inputs for mechanical BOM costing during the enquiry stage.
• Prepare concept sketches and layout drawings to go along with techno-commercial offers.

Preferred candidate profile

We are looking for a hands-on design engineer who has actually built machines, not only modelled them.

Qualification

BE / B.Tech Mechanical (or DME with strong SPM experience)

Experience

1 – 5 years in SPM, test rig, fixture or machine building design

Exposure to aerospace, defence or automotive test equipment

CAD software

SolidWorks — part, assembly, weldments, sheet metal, drawings (daily use)

SolidWorks Simulation, PDM, Routing; AutoCAD for 2D layouts

Drawing skills

GD&T, limits and fits, welding symbols, surface finish, standard drawing practice

Knowledge of IS / ISO / DIN drawing standards

Design knowledge

Strength of materials, machine elements, bearing / coupling / gearbox selection, material selection

Rotor dynamics basics, vibration, hydraulic and servo-hydraulic circuits

Manufacturing

Machining, fabrication, welding, heat treatment and surface treatment processes

Experience in vendor inspection and assembly alignment (laser / dial)

Bought-out items

Selection from catalogues — SKF, Rexroth, Parker, Festo, KTR / R+W, Hiwin / THK

Torque sensor, load cell and encoder mounting design

Other tools

MS Excel for calculations and BOM

Basic idea of PLC / electrical panels to coordinate with controls team

Personal attributes

• Practical approach — design that can be made and assembled easily.
• Clear communication in English and Tamil, able to talk to vendors and shop floor.
• Ownership of the job till the machine is handed over.
• Willing to travel for vendor visits and customer sites.
• Organised with files, revisions and documentation.