Precision CNC Grinder Operator — Flexible Hours & Growth

Southern Illinois Crankshaft, Inc; Illinois; Hybrid; USD 52,000 - 68,000; Full time

Benefits offered by this job

Medical Insurance

Dental Insurance

Vision Insurance

401(k) match

Paid time off

Paid holidays

Life insurance

Disability insurance

Overtime opportunities

Training and advancement

Job summary

Southern Illinois Crankshaft, Inc. is seeking a skilled CNC Cylindrical Grinder Operator to set up, operate, and monitor CNC grinding equipment.

You will produce precision components that meet print specifications, tight tolerances, and surface finish requirements in a modern manufacturing environment. The role emphasizes attention to detail, safe operations, and continuous improvement as part of a high-performing machining team.

Qualifications

• High school diploma or equivalent; technical machining training is a plus.
• Experience operating CNC grinding equipment, preferably cylindrical grinders.
• Ability to hold close tolerances and verify work with precision tools.
• Strong shop math, blueprint reading, and geometric tolerancing concepts.
• Mechanical aptitude with ability to troubleshoot basic machine or tooling issues.

Responsibilities

• Set up and operate CNC cylindrical grinding machines per work instructions and drawings.
• Read engineering drawings and tolerance requirements accurately.
• Select, mount, dress, and monitor grinding wheels and tooling.
• Perform in-process and final inspections using micrometers, calipers, and gauges.
• Adjust offsets, feeds, speeds, and machine settings to maintain dimensional accuracy.
• Troubleshoot machine or process issues and report to supervision or maintenance.

Skills

CNC grinding

Blueprint reading

Precision measurement

Quality control

Safety awareness

Education

High School Diploma

Tools

Micrometers

Calipers

Bore gauges

Dial indicators

Job description

We are seeking a skilled CNC Cylindrical Grinder Operator to set up, operate, and monitor CNC grinding equipment to produce precision components that meet print specifications, tight tolerances, and surface finish requirements. This role is ideal for a detail-oriented machinist who takes pride in quality workmanship, safe operations, and continuous improvement in a modern manufacturing environment.

Key Responsibilities

• Set up and operate CNC cylindrical grinding machines according to work instructions, blueprints, and part specifications.
• Read and interpret engineering drawings, process sheets, and tolerance requirements.
• Select, mount, dress, and monitor grinding wheels and related tooling.
• Perform in-process and final inspections using micrometers, calipers, bore gauges, indicators, and other precision measuring instruments.
• Adjust offsets, feeds, speeds, and machine settings to maintain dimensional accuracy and surface finish.
• Troubleshoot machine or process issues and communicate concerns to supervision or maintenance as needed.
• Document inspection results, production counts, and quality data accurately.
• Maintain a clean, organized, and safe work area while following all safety and quality procedures.
• Collaborate with team members to improve setup efficiency, reduce scrap, and support on-time delivery.

Qualifications

• High school diploma or equivalent; technical training in machining or manufacturing is a plus.
• Experience operating CNC grinding equipment, preferably cylindrical grinders.
• Ability to hold close tolerances and verify work with precision measuring tools.
• Strong understanding of shop math, blueprint reading, and geometric tolerancing concepts.
• Mechanical aptitude with the ability to identify and resolve basic machine or tooling issues.
• Dependable attendance, strong attention to detail, and a commitment to safety and quality.
• Ability to stand for extended periods and safely handle materials, parts, and tooling in a manufacturing setting.

Schedule

We offer flexible hours to support employee work-life balance while meeting production needs. Schedule options may include first shift, second shift, four 10-hour days, or other adjusted start and end times based on experience, coverage, and business demand.

• Competitive pay
• Medical, dental, and vision insurance
• 401(k) with company match
• Paid time off and paid holidays
• Life and disability insurance
• Overtime opportunities, where available
• Training and advancement opportunities

This position works in a clean, organized, climate-controlled facility with a strong focus on safety, teamwork, and quality. Appropriate personal protective equipment is required, and employees are expected to follow all shop safety procedures.

We welcome applicants who are dependable, quality-focused, and ready to contribute to a high-performing machining team. Equal opportunity employer.

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