CMS Expander

About Us:

RAE Corporation is a leading provider of innovative HVAC solutions, committed to delivering

exceptional quality and customer satisfaction. We foster a culture of continuous improvement,

collaboration, and employee empowerment, striving to create a positive work environment where every

team member feels valued, heard, and supported.

Role Overview: The CMS Expansion Operator performs machine-driven tube expansion using a

Computerized Mandrel System (CMS). This pull-expansion process utilizes long expansion rods, mandrels,

and pins, combined with precise computer setup, to secure copper tubes into coil assemblies. This role

requires strong technical aptitude, attention to setup accuracy, and the ability to operate and monitor

computerized expansion equipment to meet quality and production standards.

Key Responsibilities:
To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. Reasonable

accommodation may be made to enable qualified individuals with disabilities to perform the essential functions.

1. Safety & Equipment Care

• Maintain a safe, clean, and organized work environment in compliance with all safety

procedures and regulations.

• Safely operate cranes, hoists, and CMS expansion equipment.
• Care for tools and equipment; report maintenance needs or system issues promptly.

2. CMS Expansion Process

• Set up and operate the CMS expansion system, ensuring correct mandrel and pin combinations

are selected per engineering specifications.

• Configure and verify computer-controlled expansion parameters prior to expansion.
• Perform pull-style tube expansion using long expansion rods to expand tubes to specification.
• Load, position, and secure coils accurately on the CMS expansion table.
• Monitor expansion cycles and make adjustments as required to ensure proper tube-to-fin

contact.
3. Quality Assurance

• Read and interpret engineering drawings, instructions, and bills of material.
• Measure and verify components using precision tools. (tape measure, micrometer as required)
• Inspect expanded coils for quality, consistency, and compliance with specifications.
• Follow manufacturing instructions independently and meet production deadlines.

4. Administrative & Compliance

• Accurately record labor time in the time and attendance system.
• Utilize IFS system for daily operations, including logging in, reviewing assigned work, and

maintaining accurate records

• Complete IFS shop orders in a timely and accurate manner to support production tracking and

reporting

• Participate in and complete required IFS training to ensure proper system usage and

compliance

• Comply with company policies, procedures, and applicable regulations.
• Perform overtime as required to meet production demands.
• Complete additional tasks as assigned by supervision.

Desired Qualifications
Education & Experience

• High school diploma or equivalent preferred.
• Ability to follow detailed work instructions.

Skills

• Mechanical aptitude and comfort working with machine-driven processes.
• Ability to work with computerized equipment and expansion control systems.
• Basic computer proficiency, including experience with Microsoft Excel and IFS or similar ERP

systems.

• Strong attention to detail and commitment to quality standards.
• Basic math skills, including the ability to read a tapemeasure to 1/16 of an inch.
• Effective communication and teamwork skills.

Training

• On-site CMS system training provided.

Interaction with Others: Reports to the Coil Shop Supervisor. Works collaboratively with team members

and leads. Must be able to receive instructions clearly and contribute to a cooperative work environment.
Working Environment: Industrial production environment with exposure to moving mechanical parts,

vehicles, noise, and seasonal temperature variations. Production deadlines and quality expectations may

create periods of elevated pace.

Tools & Equipment Used

• CMS Mandrel Expansion System
• Expansion rods, mandrels, and pins
• Computerized expansion controls
• Torque wrench, hand and power tools
• Jib crane, micrometer, tape measure
• PPE: safety glasses, gloves, hearing protection (as required)
• Vice Grips
• Rachet Straps

Why Join Us? At RAE Corporation, CMS Expansion Operators play a critical role in precision

manufacturing. You’ll work with advanced equipment, develop specialized technical skills, and contribute

directly to the quality of industry-leading HVAC products in a supportive, team-oriented environment.

Benefits:

• Health insurance
• Retirement savings plan
• Paid time off
• Professional development opportunities

Physical Demands
Stand F
Walk O
Sit O
Handling / Fingering F
Reach Outward O
Reach Above Shoulder O
Climb O
Crawl O

Squat or Kneel O
Bend O
Twist O

Lift/Carry

10 lbs. or less O
11-20 lbs. O
21-50 lbs. O
51-100 lbs. N
Over 100 lbs. N
Push/Pull
12 lbs. or less O
13-25 lbs. O
26-40 lbs. O
41-100 lbs. O
+100 lbs. N

N (Not Applicable) Activity does not apply to this occupation.

O (Occasionally) Occupation requires this activity up to 33% of the time (0 -
2.5+ hrs./day)

F (Frequently) Occupation requires this activity from 33% - 66% of the time

(2.5 - 5.5+ hrs/day)
C (Constantly) Occupation requires this activity more than 66% of the time

(5.5+ hrs/day)

Other Physical Requirements: Auditory capabilities, visual & speech capabilities

The Company has reviewed this job description to ensure that essential functions and primary duties have been

included. It is intended to provide guidelines for job expectations and the employee's ability to perform the position

described. It is not intended to be construed as an exhaustive list of all functions, responsibilities, skills, and abilities.

Additional procedures and requirements may be assigned by supervisors as deemed appropriate. This document does

not represent a contract of employment. The Company reserves the right to change this job description and/or assign

tasks for the employee to perform, as the Company may deem appropriate.

RAE Corporation is an Equal Opportunity Employer EEO/AA M/F/V/D