NextGenPrecision CNC Machining, VMC Milling & Die-Sinking
NextGen Engineering Works provides 3-axis CNC milling, high-precision lathe turning, and custom diemaker tooling services from our Mayapuri machine shop. We manufacture tooling inserts, custom shafts, complex flanges, and industrial machine parts to ±0.02 mm dimensional tolerances.
Precision Toolpaths & Rigid Workholding
Reliable machining begins with rigid workholding and precise CAM toolpath programming. Whether milling heat-treated P20 mould blocks or turning heavy mixer driveshafts from EN8 round stock, our machinists prevent tool chatter, deflection, and thermal drift through balanced feeds and speeds.
All critical geometric features—including keyways, O-ring seal grooves, bearing journals, and internal threads—are measured using calibrated instruments against your 2D engineering drawings before dispatch.
Machining Gallery
VMC Milling & Contouring
High-speed CNC spindle profiling complex 3D contours and cavities for industrial dies and mechanical subassemblies.
Precision Turning & Grinding
Heavy-duty shaft turning, threading, and cylindrical grinding ensuring concentricity on mixer drive components.
Quality & Dimensional Check
Comprehensive mechanical inspection bench equipped with digital height gauges, micrometers, and surface tables.
Applications & Components Built
Our machine shop manufactures components across diverse industrial sectors:
- Toolroom Inserts & Core Pins: Replaceable wear inserts and slide cores for concrete paver and industrial moulds.
- Mixer Shafts & Bearing Housings: Heavy keyed shafts engineered for high-torque industrial pan mixers and vibrator tables.
- Hydraulic Flanges & Manifolds: Pressure-rated drilled and tapped manifolds for custom hydraulic press circuits.
- Bespoke Jigs & Fixtures: Precision welding and assembly fixtures for repetitive factory fabrication.
Secondary & Finishing Operations
- Surface Grinding: Flat grinding on core blocks and mounting plates to within ±0.01 mm flatness.
- Heat Treatment & Hardening: Case hardening, induction hardening, and oil quenching through certified heat treatment partners.
- Keyway Broaching: Internal single and double keyways machined to IS/DIN standards.
- Protective Plating: Blackodizing, hard chrome plating, and phosphating for corrosion resistance.
Machining Material Comparison
| Alloy / Steel Grade | Hardness (As-Supplied) | Tensile Strength | Common Component Uses | Machinability Rating |
|---|---|---|---|---|
| Mild Steel (IS 2062) | 120–160 HB | 410 MPa | Base frames, brackets, welded fixtures | Good (High feed rates) |
| EN8 (Carbon Steel) | 180–220 HB | 550–650 MPa | Drive shafts, axles, geared pins, bolts | Very Good (Predictable chip) |
| EN31 (Bearing Steel) | 210 HB (Annealed) | 750 MPa | High-wear bushes, guide pins, rollers | Moderate (Demands rigid tooling) |
| P20 (Tool Steel) | 28–32 HRC (Pre-hard) | 900–1050 MPa | Mould cavities, diestock, compression plates | Specialized carbide tooling |
| Aluminium 6061-T6 | 90–95 HB | 310 MPa | Lightweight fixtures, prototyping housings | Excellent (High surface speed) |
CNC Machining FAQ
We accept 3D solid models in STEP (.step / .stp), IGES (.iges), or Parasolid (.x_t) format, accompanied by a 2D PDF drawing indicating critical dimensional tolerances, tapped hole specs, and surface roughness requirements.
Yes. We frequently machine single custom replacement shafts, bespoke mould core inserts, and prototype diestock blocks. There is no rigid minimum order quantity for custom machined parts.
Yes. Every batch can be accompanied by an inspection checklist documenting actual measured values against your drawing callouts for nominated critical features and bearing journals.
Standard turned or milled parts typically ship within 3 to 7 working days. Jobs requiring external heat treatment, case hardening, or surface grinding take approximately 7 to 12 working days.
Related NextGen Capabilities
Plastic Mould Manufacturing
CNC-machined tooling dies for concrete paver blocks, tiles, and custom plastic parts.
View Plastic Moulds →Concrete Mixer Machines
Industrial mixing machines built with CNC-turned drive shafts and balanced gear reducers.
View Concrete Mixers →Custom Manufacturing
Bespoke mechanical fabrication and tailored factory tooling engineered to customer blueprints.
View Custom Manufacturing →