We are looking for an experienced CNC Turning Programmer Cum Operator capable of independently handling programming, machine setup, tooling, prove-out, machining and inspection of precision and heavy engineering components.

The candidate should have strong hands-on experience in machining large-diameter and long components, including shafts, eccentric shafts, bearing housings, rings, bushes, sleeves and other critical components.

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## Key Responsibilities

### 1. CNC Programming

- Develop CNC turning programs independently using G-code and M-code.
- Prepare programs directly from engineering drawings.
- Modify and optimize existing CNC programs.
- Select appropriate machining sequences and cutting parameters.
- Optimize tool paths to reduce cycle time and tool consumption.
- Use canned cycles for roughing, finishing, threading, drilling, boring, grooving, etc.
- Troubleshoot program-related machining problems.
- Knowledge of Fanuc / Siemens / Mitsubishi controls preferred.

### 2. Machine Setup
- Independently set up CNC turning machines for new jobs.
- Select suitable cutting tools, inserts, holders and boring bars.
- Set tool offsets and work offsets.
- Perform component alignment and centering.
- Set up steady rests, hydraulic/4-jaw chucks and other work-holding arrangements.
- Check component runout before machining.
- Carry out program prove-out and first-piece approval.

### 3. Heavy & Precision Component Machining The candidate should be capable of machining components such as:
- Main shafts
- Eccentric shafts
- Crusher shafts
- Bearing housings
- Sleeves
- Bushes
- Rings
- Spacers
- Bearing components
- Counterweight-related components
- Heavy engineering housings
- Mining and crushing equipment components

Experience with large-diameter and long-length components will be highly preferred.

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## 4. Drawing & Technical Knowledge

Candidate must be able to:

- Read and understand engineering drawings.
- Interpret dimensional tolerances.
- Understand GD&T;.
- Understand surface-finish requirements such as Ra 0.8, 1.6, 3.2, etc.
- Understand fits and tolerances such as H7, h6, g6, etc.




- Identify critical dimensions and machining requirements.
- Calculate machining allowances and appropriate finishing allowances.

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## 5. Tooling & Cutting Parameters

- Select appropriate carbide inserts and tooling.
- Determine cutting speed, feed and depth of cut.
- Optimize roughing and finishing parameters.
- Select tools based on material such as:
- EN8
- EN19
- EN24
- SAE 4140
- C45
- Cast iron
- Stainless steel
- Other engineering materials
- Monitor tool wear and replace tools when required.
- Minimize tool breakage and unnecessary tool consumption.

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## 6. Inspection & Quality The candidate should independently carry out first-off and in-process inspection using:

- Vernier caliper
- Outside micrometer
- Inside micrometer
- Bore gauge
- Height gauge
- Dial indicator
- Thread gauges
- Vernier height gauge
- Other precision measuring instruments

Responsibilities include

- Verify critical dimensions during machining.
- Maintain required dimensional accuracy.
- Ensure required surface finish.
- Identify dimensional deviations.
- Make appropriate tool-offset corrections.
- Prevent rejection and rework.

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## 7. Production Responsibilities

- Achieve daily/monthly production targets.
- Maintain required quality standards.
- Optimize machine utilization.
- Reduce machining cycle time.
- Minimize setup time.
- Monitor tool life.
- Maintain production and inspection records.
- Ensure proper identification and traceability of components.
- Maintain machine cleanliness and basic machine condition.
- Follow 5S, safety and shop-floor procedures.

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# Required Technical Skills

### Essential

- CNC turning programming
- G-code / M-code
- CNC machine setup
- Tool offset setting
- Work offset setting
- Tool selection




- Cutting parameter selection
- Drawing reading
- GD&T;
- Precision measurement
- CNC troubleshooting
- Cycle-time optimization

### Preferred
- Fanuc / Siemens / Mitsubishi controls
- CAM programming experience
- Mastercam / NX / Fusion 360 / SolidCAM
- Experience with CNC heavy-duty turning machines
- Experience with VTL
- Experience with live tooling / C-axis is an advantage

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# Heavy Machining Experience Preferred

Preference will be given to candidates who have worked on machines capable of machining:

Large diameter: approximately •500–•1,500+ mm

Long components: approximately 1,500–3,000+ mm

Experience with heavy-duty chucking, steady-rest support, component balancing and safe handling of heavy components will be an advantage.

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# Experience

5–10 years of relevant experience in CNC turning/programming.

Preferred industries

- Heavy engineering
- Precision machining
- Mining equipment
- Crusher components
- Construction equipment
- Industrial machinery
- Pumps
- Gearboxes
- Power equipment

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# Educational Qualification

ITI / Diploma – Mechanical / Production / Tool & Die / Machining

Candidates with strong practical CNC turning experience may also be considered based on skill level.

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# Ideal Candidate The candidate should be capable of independently managing the complete machining cycle:

Drawing Study

Process Planning

Tool Selection

CNC Programming

Machine Setup

Program Prove-Out

First Piece Inspection

Production Machining

In-Process Inspection

Final Component Inspection

### Key Performance Indicators

- First-time-right production
- Dimensional accuracy
- Machine utilization
- Cycle-time reduction
- Tool-life optimization
- Rejection/rework reduction
- On-time completion
- Setup-time reduction
- Workplace safety and discipline

### Employment Type

Full time | Permanent

### Preferred Experience

5–10 years

### Company

Ascent Precision India Pvt. Ltd.

Precision Machined Components for Mining, Crushing, Screening & Heavy Engineering Applications

Role & responsibilities

📌 CNC Turning Programmer Cum Operator (Chakan)
🏢 Ascent Precision
📍 Chakan