�� Heavy Machining Job Work Process Overview
Heavy machining refers to the machining of large, heavy, and complex metal components typically weighing from hundreds of kilograms to several tons. This process requires special high-capacity machines and skilled handling.
��️ Step-by-Step Process of Heavy Machining Job Work1. ✅ Job Requirement Drawing Review
Study engineering drawings (CAD/CAM if provided).
Identify key specifications:
Dimensions and tolerances
Surface finish (Ra)
Machining operations (turning, milling, boring, drilling)
Material (MS, EN8, Cast Iron, SS, etc.)
2. �� Material Handling Setup
Load heavy workpieces using EOT cranes, forklifts, or jib cranes.
Secure the job on machine bed using fixtures, clamps, or jigs.
Align and level the part with dial gauges or laser systems.
3. ⚙️ Machining Operations (as per job requirement)
Operation
Machines Used
Application
Turning
Heavy-duty lathe,VTL
Shafts, rollers, flanges
Milling
Conventional miller
Machine bases, dies, large components
Boring
Horizontal boring machine (HBM)
Gearbox housings,hydraulic cylinder base, engine blocks
Drilling/Tapping
Pillar Drilling ,HBM
Bolt holes, threaded holes
Grinding (if required)
OD ,ID grinders
Final surface finishing
4. �� In-Process Inspection
Check critical dimensions during machining using:
Vernier, micrometers, bore gauges
Height gauges, laser alignment tools
CMM (if available for high accuracy jobs)
5. �� Deburring Surface Finishing
Remove burrs using grinders or emery.
Surface finishing by polishing, shot blasting, or painting (if required).
6. ✅ Final Quality Check
Final dimension inspection and visual checks.
Surface finish and runout checks.
Third-party inspection (if specified by customer).
Logistics by trailer or heavy-vehicle transport.
�� Applications of Heavy Machining Services
Wind turbine parts
Steel plant equipment
Power plant components
Cement mining machinery
Rolling mill spares
Earthmoving machine parts
Marine oilfield equipment
✅ Advantages of Heavy Machining Services
Precision machining of oversized components
Handles high-weight materials (up to 50+ tons)
Custom machining as per drawing
Skilled operators and large-capacity machines
