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Centerless Grinder Set Up Operator Trainee

TriMas Corporation
medical insurance, dental insurance, life insurance, vision insurance, paid time off, sick time
United States, California, Commerce
3423 Garfield Avenue (Show on map)
Dec 15, 2025

Centerless Grinder Set Up Operator Trainee

Company: Monogram Aerospace Fasteners

Primary Location: 3423 S Garfield Avenue, Commerce, CA 90040 USA

Workplace Type: On-site

Employment Type: Hourly | Full-Time

Function: Manufacturing Production / Distribution

Equal Opportunity Employer Minorities/Women/Veterans/Disabled

Main Duties & Responsibilities

Summary/Objective

Under supervision, learns to set - up and operate a Centerless grinding machine to grind external or internal cylindrical or tapered surfaces of metal work pieces to specifications and tolerances required.
Essential Functions
Include the following. Other duties may be assigned as necessitated by Company production requirements.
Under the supervision of the Supervisor and direction of Leadperson or Facilitator, learns the following.


1.
Learns to set - up and operate any and all grinders used in the cell. Mounts grinding wheels, regulating wheels, etc. per requirements of task. Dresses wheels to specifications.


2.
Measures, marks and scribes stock for grinding. Verifies dimensions, alignments and clearances to specifications. Visually or with various precision measuring instruments such as calipers, micrometers, gauges, etc. checks product for accuracy. Sets specific grinding speeds, feed rates and spacing per task requirements.


3.
Provides necessary counts, processes documentation correctly, and maintains daily production logs using computer software applications or production worksheets. Keeps interim records for subassemblies, material, tooling, rework, etc. while in the cell.


4.
Uses basic Machine Shop theory to understand specifications such as blueprints, sketches, models or descriptions, or verbal orders, and visualizes product to determine dimensions, tolerances and parts to be ground.

5. Works as an active team member by participating in problem solving, team building, and all other team activities to improve the processes, productivity, quality, etc. of the production operations in a cell. Uses interpersonal skills as well as good written and verbal communications. Assists other cell members as required.

Equipment / Process Responsibilities -

Performs duties where property, tools, equipment or machines may be damaged, or man hours lost through improper daily maintenance or attention to processing. Sets up and calibrates grinding machines for the jobs performed. Learns to maintain and affect minor repairs of machines.

Material or Product Responsibilities -

Performs duties that require close attention to work and supporting documentation specifications and other requirements. Responsibility for accuracy of parts machined. Visually and / or with measuring instruments, checks work performed for proper results. Work is frequently checked by trainer.

Responsibility for Communications -

Accuracy of communication is mandatory to the successful production and, (qualification of work pieces. Must communicate to appropriate personnel any problems or concerns regarding quality of work received or time flow of work in progress as it affects production schedules.

Safety Responsibilities -

Good housekeeping, knowledge of good machining safety is necessary. Adherence to Company safety Rules is mandatory. Protective equipment and clothing appropriate to the task at hand is required.

Initiative and Ingenuity -

Initiative to learn the job is a basic requirement for this entry level position. Minimal initiative or ingenuity toward production processes is required at first due to entry level nature of work. As learning progresses, job will require more initiative in solving problems associated with the set - up and operation of various grinding machines concurrently and use ingenuity in adapting tooling and shop ids to complete machining operations. Makes suggestions for improving the efficiency of work flow or equipment operation. Takes on or reports for additional work as current tasks are completed. Performs other work related tasks as deemed necessary by Company needs.

WORK ENVIRONMENT

Environmental Surroundings - Work is in a machine shop environment where noise, temperature fluctuations, the repetitive nature of job, etc. are less desirable than in a typical office environment.

Unavoidable Hazards - Possible hazards related to cuts, bruises, finger and hand injuries and muscle strains. Exposure to metalworking fluids and airborne particles. Protective safety wear and equipment should be worn as appropriate to the task at hand.


EFFORT

Physical - Able to lift up to 50 pounds. Requires strength to adjust requisite equipment to set - up specifications. Hand and finger manipulation of parts and equipment controls. Must be able to hand feed all the various size parts to be machined into the grinder. Able to reach, bend and stretch. Able to use tools required for machine set - up which may be fatiguing and require extensive physical exertion for extended periods of time. Most job assignments require standing and / or sitting for periods exceeding 15 minutes at a time.

Mental - Work at times is highly repetitive and monotonous. However, set - up and / or machine repair is varied and may require improvisation and ingenuity. Reasoning ability required to interpret basic specifications and documentation of a technical nature. Must be able to draw valid conclusions from a variety of machining technical variables. Required to organize work flow for best efficiency.

Visual - Close attention to detail with moderate eye concentration over long periods of time. Able to read various precision instruments such as micrometers, calipers, gauges, etc. Must be able to visually check work pieces for quality.

Salary: $27.07 to $33.24 LG 8 training will be on 1st or 2nd shift. Perm shift 3rd shift Sunday through Thursday 9:00pm to 5:30am plus shift differential.


Qualifications

EDUCATION / TRAINING

Demonstrated ability to read and write English of a level required in Company shop documents and computer software entry and processing requirements. Must be capable of applying basic mathematical operations including using fractions and decimals, as required by cell machining operations. Generally equivalent to ninth grade level.

EXPERIENCE

Requires 3 to 6 months work experience or equivalent skills and knowledge familiarity in the set - up and / or operation of grinding machines, tools and equipment which are similar or comparable to those used by the Company and which are necessary to fulfill job requirements. Must read precision measuring instruments such as calipers and micrometers and engineering diagrams similar or comparable to those used in grinding operations by the Company.


Benefits

Benefit offerings include Medical Insurance and Prescription Drugs, Dental Insurance, Vision Insurance, Flexible Spending Accounts, Life Insurance, Short-Term Disability, Long-Term Disability Insurance (for eligible employees), Employee Assistance Plan (EAP), Paid Time Off (may include vacation and sick time), Retirement Program, and Other Voluntary Benefits.

Click here for more information: www.trimasbenefits.com

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