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CNC Machinist

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Location: Billings, Montana, United States
Job ID: R0001592
Date Posted: Aug 30, 2022
Segment: Construction Machinery
Business Unit: Hitachi Construction Machinery
Company Name: H-E Parts International Mining Solutions Usa Inc
Profession (Job Category): Production & Skilled Trades
Job Type (Experience Level): Entry Level
Job Schedule: Full time
Remote: No

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CNC Machinists set up and operate a variety of machine tools (Lathes & Mills) to cut or grind metal and similar materials into parts or products with precise dimensions.  Machinists fabricate parts and/or repair parts for mining or heavy construction equipment, applying knowledge of mechanics, shop mathematics, metal properties, layout, and machining procedures.  Machinists study sample parts, blueprints, drawings, and engineering information to determine methods and sequences of operations needed to fabricate parts, and determine part dimensions and tolerances

It is the responsibility of every H-E Parts International, employee to insure a safe work environment.  All H-E Parts International, employees share the responsibility to insure at the end of the day we return home safely to our families.  Our safe work environment value surpasses all other responsibilities.


Safety – conduct all activities in a safe manner, utilizing PPE and adhering to company policy and alerting others regarding potential concerns. Safety is # 1. Read and interpret engineering drawings, blueprints, charts and tables or study sample parts to determine machining operation to be performed, and plan best sequence of operations Compute dimensions and tolerances and measure and lay out work pieces Set up and operate a variety of machine tools including computer numerical controlled (CNC) tools to perform precision, non-repetitive machining operations such as sawing, turning, milling, boring, planning, drilling, precision grinding and other operations Fit and assemble machined metal parts and subassemblies using hand and power tools Verify dimensions of products for accuracy and conformance to specifications using precisions measuring instruments May set up and program machine tools for use by machining tool operators Verify dimensions of machined parts or tooling using micrometers, verniers, callipers, height gauges, optical comparators or other specialized measuring instruments Maintain, repair and calibrate precision measuring instruments such as dial indicators, fixed gauges, height gauges and other measuring devices Calculate dimensions and tolerances using knowledge of mathematics and instruments such as micrometers and vernier calipers. Machine parts to specifications using machine tools such as lathes, milling machines, shapers, or grinders. Measure, examine, and test completed units to detect defects and ensure conformance to specifications, using precision instruments such as micrometers. Set up, adjust, and operate all of the basic machine tools and many specialized or advanced variation tools to perform precision machining operations. Align and secure holding fixtures, cutting tools, attachments, accessories, and materials onto machines. Monitor the feed and speed of machines during the machining process. Study sample parts, blueprints, drawings, and engineering information to determine methods and sequences of operations needed to fabricate products, and determine product dimensions and tolerances. Select the appropriate tools, machines, and materials to be used in preparation of machinery work. Lay out, measure, and mark metal stock to display placement of cuts.

Observe and listen to operating machines or equipment to diagnose machine malfunctions and to determine need for adjustments or repairs.


Position will not be required to make decisions that will directly impact the department.


Position requires collaboration with department managers and current/potential customers.

Employment Requirements:

Completion of High School or GED equivalent required

Minimum Qualifications:

  • Good knowledge of: methods, tooling, and standard practices for precision machining and millwright trades; ferrous and non-ferrous metal alloys, their physical characteristics and applications.

  • Considerable experience: using tools and equipment common in the precision machine industry to turn, shape, cut, and grind, various alloys to tolerances within one ten thousandths of an inch; using all types of precision measuring instruments to make very accurate, repeatable measurements; using heat to treat steels for tools; selecting, grinding, and setup of appropriate cutting tools for various alloys and determining correct feeds and speeds to produce the highest quality finish required for the application; working from mechanical drawings and blueprints to determine dimensions, tolerances, machine sequence, and setup of work.

  • Ability to: perform physical activities associated with fabrication and maintenance duties such as bending, stooping, crawling, working in high or confined spaces, and working in temperature extremes.

  • Physical ability to: perform strenuous work and handle awkward objects weighing up to 50 pounds.


  • Two years professional training in a vocational institution, or equivalent journey level experience.

  • Welding, soldering, and brazing skills.  Rigging loads for overhead crane work and forklift operation.
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