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Portable Line Boring Machinist Jobs (NOW HIRING)

Komatsu

Field Service Welder / Machinist

Mesa, AZ · On-site

Operate portable machining equipment, line boring machines, cutting torches, and welding equipment. * Perform metal fabrication, fitting, grinding, and assembly work. * Inspect equipment for cracks ...

Komatsu

Field Service Welder / Machinist

Mesa, AZ

Operate portable machining equipment, line boring machines, cutting torches, and welding equipment. * Perform metal fabrication, fitting, grinding, and assembly work. * Inspect equipment for cracks ...

Company Wrench Ltd

Welder

Carroll, OH · On-site

$18 - $24/hr

Knowledge of portable line boring and basic machining * Mechanical aptitude * Ability to read and understand engineering drawings * High School Diploma Additional Information * Medical, Dental ...

COMPANY WRENCH LTD

Welder

Carroll, OH · On-site

$18 - $24/hr

Knowledge of portable line boring and basic machining * Mechanical aptitude * Ability to read and understand engineering drawings * High School Diploma Additional Information * Medical, Dental ...

Komatsu

Operate portable machining equipment, line boring machines, cutting torches, and welding equipment. * Perform metal fabrication, fitting, grinding, and assembly work. * Inspect equipment for cracks ...

Sargents Equipment

Welder

Pardeeville, WI · On-site

$21.50 - $27.50/hr

Room for growth and opportunity to cross train the right individual in manual machining, portable line boring, and hydraulic cylinder repair. Job/Position Requirements: * This position requires a ...

Sargents Equipment

Welder

Pardeeville, WI · On-site

$21.50 - $27.50/hr

Room for growth and opportunity to cross train the right individual in manual machining, portable line boring, and hydraulic cylinder repair. Job/Position Requirements: * This position requires a ...

Bender CCP

CNC Manual Machinist

Kent, WA · On-site

$25 - $40/hr

Line boring and milling * Pump base manufacturing and split line machining * Facing plates, flange facing, and keyway cutting * Trunnions, wicket gate bores, and valve seat machining * Journals ...

Metso Outotec

Field Machinist

Mesa, AZ · On-site

Set up and operate portable machine tools including mills, lathes, and line boring equipment. * Perform precision alignments and tolerances per job requirements. * Inspect and measure completed work ...

Metso Outotec

Field Machinist

Mesa, AZ · On-site

Set up and operate portable machine tools including mills, lathes, and line boring equipment. * Perform precision alignments and tolerances per job requirements. * Inspect and measure completed work ...

Metso Outotec

Field Machinist

Mesa, AZ · On-site

Set up and operate portable machine tools including mills, lathes, and line boring equipment. * Perform precision alignments and tolerances per job requirements. * Inspect and measure completed work ...

Metso Outotec

Field Machinist

Mesa, AZ · On-site

Set up and operate portable machine tools including mills, lathes, and line boring equipment. * Perform precision alignments and tolerances per job requirements. * Inspect and measure completed work ...

Thompson Tractor Company

Welder - Earthmoving

Thomasville, AL · On-site

$16.50 - $21.75/hr

Basic safe machine operation & inspection * Ability to perform welding operations utilizing Stick, MIG, TIG and portable line boring. * Ability to perform metal cutting utilizing Flame Torch, Plasma ...

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Portable Line Boring Machinist information

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How much do portable line boring machinist jobs pay per hour?

As of Sep 9, 2026, the average hourly pay for portable line boring machinist in the United States is $20.70, according to ZipRecruiter salary data. Most workers in this role earn between $16.83 and $21.63 per hour, depending on experience, location, and employer.

What is a portable line boring machinist?

Portable Line Boring Machinists are skilled technicians who repair and restore the bores of large machinery and equipment, such as excavators, bulldozers, and cranes, often on-site. They use specialized portable line boring machines to accurately bore holes or restore worn or damaged bores to their original specifications. This work is essential for maintaining machinery efficiency and extending equipment lifespan in industries like construction, mining, and agriculture. Portable line boring machinists require mechanical aptitude, precision, and experience with heavy machinery.

What are the key skills and qualifications needed to thrive as a portable line boring machinist?

To thrive as a Portable Line Boring Machinist, you need strong mechanical aptitude, precision machining skills, and experience with welding and metal fabrication, often supported by a technical diploma or apprenticeship. Familiarity with portable line boring machines, measuring instruments like micrometers and calipers, and relevant safety certifications are essential. Attention to detail, problem-solving ability, and effective communication are crucial soft skills for ensuring high-quality repairs and working efficiently on-site. These skills are vital for performing accurate machining, maintaining equipment reliability, and meeting client specifications in diverse industrial environments.

What are some common challenges faced by portable line boring machinists in the field?

Portable Line Boring Machinists often work in challenging environments, including confined spaces, outdoor job sites, or remote locations. One common challenge is ensuring precise alignment and tolerances while operating heavy, portable equipment on uneven or worn surfaces. Additionally, machinists must adapt to varying materials and repair scenarios, requiring strong problem-solving skills and attention to detail. Effective communication with site supervisors and maintenance teams is also crucial to coordinate repairs and minimize equipment downtime.

What are popular job titles related to Portable Line Boring Machinist jobs?

For Portable Line Boring Machinist jobs, the most frequently searched job titles are:

Hydraulics Service Technician - Mobile Line Boring

Bolivar, OH • On-site

Ohio Machinery Company
See more jobs at Ohio Machinery Companyexternal

$14.75 - $17.25/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 22 days ago

Key responsibilities

  • Perform welding, machining, and line-bore work to repair and refurbish equipment components.

  • Use machine shop equipment such as welders, portable line bore mills, lathes, boring mills, saws, and related tools to meet specifications.

  • Read blueprints and use precision measuring instruments to ensure work accuracy and adherence to tight tolerance specifications.

Job description

Description
Find YOUR fit at Complete Hydraulic Component Service (a division of Ohio Machinery Co)! Join a winning culture built on industry experience, teamwork, and integrity. Come grow your career - See what opportunities await today!
JOB SUMMARY:
Shift Hours: Monday - Friday, 6:00 am - 2:30 pm
In our Hydraulics Service Technician - Line Bore role, you will perform welding and line-bore work to repair and refurbish various components for our customers' equipment. The line-bore work will be performed both in the shop and in the field from a company service vehicle. Individual must be capable of welding, machining and line boring ferrous and non-ferrous materials to tight tolerance specifications, per instructions and blueprint, utilizing a variety of machine shop equipment, including welder, portable line bore mill, manual lathe, horizontal boring mill, vertical boring mill, horizontal saw, overhead crane, forklift and other related equipment & tooling. CNC experience is a plus but not required. Be a part of getting our customers back onto the jobsite and building the world around you!
JOB QUALIFICATIONS:
  • High school diploma or equivalent is required.
  • Must have valid commercial driver's license (CDL) and ability to obtain DOT Medical Card if not possessed already.
  • Three - Five years of welding and machine shop experience is desired, including experience performing line-boring process, preferably in a repair or equipment maintenance-related environment.
  • Must possess and provide own hand tools (1" and below)
  • Must be proficient in the use of precision measuring instruments including micrometers, calipers, thread gauges, and indicators, among others.
  • Requires exercising good judgment and utilizing best machining practices.
  • Requires attention to detail and ability to read blueprints.

EMPLOYEE BENEFITS:
  • Employer-sponsored pension plan
  • Competitive pay rate
  • First-year paid time off, which builds based on length of service.
  • Two different Health Insurance options, including an Health Savings Account (HSA) option
  • Flexible Spending Account (FSA)
  • Dental and Vision Insurance
  • Credit Union Access
  • Life Insurance, Short-Term Disability, and Long-Term Disability.
  • Scholarship opportunities for employee's spouses and children, through the Ohio Machinery Education and Opportunity Foundation.
  • Company provided and laundered uniforms
  • Continued technical and professional training

PHYSICAL REQUIREMENTS:
Lifting/Carrying 40 lb. Lift/Carry and 50lb pulling. Standing, sitting, and climbing up and down stairs, as well as standing, sitting, and climbing into machines. Dexterity Normal. Repetitive Motions: Frequent movements requiring the use of hands, wrists, and fingers. The noise level in the work environment is usually quiet in office settings and moderate to loud in other situations, with both constant and sudden loud noises possible.
EEO, Veterans & Disabled Employer, and VEVRAA/503 Federal Contractor.

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