ASSEMBLY TECHNICIAN
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Position Summary
The Trailer and Cylinder Assembly Technician integrates finished COPVs into frames and/or stationary storage modules. This role covers mechanical installation of cylinders, fabrication and installation of high-pressure manifolds and tubing, installation of valves and pressure relief devices, and pressure testing of completed systems before shipment. The technician plays a direct role in ensuring that every system leaving the facility is safe for road transport and field operation.
Key Responsibilities
• Rig, lift, and position cylinders into trailer frames, and racks using overhead cranes, gantries, and forklifts following approved lifting plans.
• Install cylinder mounting hardware, neck mounts to specified torque values and alignment tolerances.
• Perform pneumatic and hydrostatic leak and pressure tests on assembled systems, including leak checks with approved methods, and document results.
• Install electrical components such as trailer lighting, grounding, and bonding systems, and coordinate with telemetry technicians on sensor and harness installation.
• Complete final inspection checklists covering DOT/FMCSA trailer requirements, labeling, placarding, and customer specifications.
• Maintain build records, torque logs, and serial number traceability for every cylinder and component installed.
• Support field returns, retrofits, and warranty repairs as needed, which may include occasional travel to customer sites.
Qualifications
• High school diploma or GED required; training in industrial mechanics, diesel/trailer technology, or instrumentation preferred.
• 2–5 years of experience in heavy equipment, trailer, skid, or process assembly.
• Swagelok tube fitting certification or similar is a plus.
• Rigging and overhead crane experience; forklift certification preferred.
• Ability to read mechanical drawings, P&IDs, and assembly schematics.
• Familiarity with CNG, hydrogen, or industrial gas systems is strongly preferred.
• Welding or fabrication skills are a plus but not required.
Physical Requirements
Ability to lift up to 50 lbs, climb ladders and work at heights with fall protection, kneel, crawl, and work in confined spaces around trailer frames. Work may be performed in a shop environment with variable temperatures and occasionally outdoors.
Hydria Gas Technologies is a Houston-based manufacturer specializing in high-pressure compressed gas transportation, storage, and virtual pipeline solutions serving the U.S. energy and industrial gas markets. We are committed to innovation, operational excellence, and developing technology solutions that improve efficiency across our organization.
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