Heavy CNC Machining

Large-format CNC machining on our SANCO double column machining centre. Ideal for large fabricated components, machine bases and structural parts up to 2200mm.

Service Overview

DHANRAJ Engineering specialises in heavy CNC machining on our advanced SANCO SM-2000s double column machining centre. Our large machining envelope of 2200 × 1200 mm makes us the partner of choice for oversized components that standard machining centres cannot handle.

Our double column architecture provides outstanding rigidity during heavy material removal, ensuring dimensional accuracy even under aggressive cutting conditions. We machine fabricated steel structures, machine bases, castings and complex components across a wide range of heavy industries.

Every component is fixtured, programmed and machined to drawing tolerance — and verified before dispatch.

Key Features

Large Fabrication Machining

Machine bases, structural fabrications and welded assemblies requiring large-envelope CNC operations.

Cast Component Machining

Grey iron, ductile iron and steel castings machined to close tolerances on our heavy column machining centre.

Machine Base Machining

Precision face and pocket machining of machine tool bases and beds requiring flatness and squareness.

Fabricated Structure Machining

Complex fabricated structures requiring multi-face machining with positional accuracy.

Our Process

1

Drawing & Process Study

Review the component drawing and establish the machining sequence.

2

Fixture & Setup Planning

Plan component fixture and setup arrangement on the machine table.

3

CNC Programming

Prepare CNC programs using Fanuc 18i-MB controller for all machining operations.

4

Heavy Machining

Execute all machining operations under our rigorous process discipline.

5

Inspection & Verification

Verify all dimensions against drawing tolerances before dispatch.

6

Dispatch & Documentation

Complete dimensional report and dispatch documentation provided with every order.

Tools & Technologies

SANCO SM-2000sFanuc 18i-MBBT-50 ToolingData Servo Mould Package

Frequently Asked Questions

What is the maximum component size you can machine?
Our SANCO SM-2000s has a table size of 2100 × 1000mm and X-axis travel of 2200mm. We can accommodate components up to 2200 × 1200mm in a single setup.
What materials do you machine?
We machine mild steel, alloy steel, grey iron, ductile iron, and large steel castings and fabrications. Our heavy machine is built for hard materials.
Do you provide dimensional inspection reports?
Yes. Every component is inspected and verified against drawing tolerances before dispatch. Inspection documentation is provided with each delivery.

Precision Surface Milling

High-accuracy face milling and surface milling of large components requiring flatness, parallelism and surface finish specifications.

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Angular Head Machining

Multi-face machining using our manual angular milling head — reducing repositioning setups and setup error for complex components.

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