Arm Families & Options

Counterbalanced Inboard

Manual or powered inboard rotation with outboard swivel joints for smooth vessel tracking.

  • Quick-disconnect couplings
  • Hydraulic or pneumatic actuation
  • Vapor return line options

Reach & Envelope

Typical reach 20–65 ft with elevation and slewing to match jetty geometry and tidal range.

Materials

Carbon steel, stainless, or alloy wetted paths with media-compatible seals.

Key Technical Specs

ParameterRange / OptionNotes
Flow Rate100–12,000 GPMDuty & line size dependent
PressureUp to 300 PSIService specific
Temperature−50°F to 400°FCryogenic/high-temp packages
Reach20–65 ft typicalGeometry engineered to site
ActuationManual / Hydraulic / PneumaticHPU with local/remote control
ConnectionsCamlock, TTMA, ANSI, Dry-BreakERS & vapor return options

Scope

Included Services

  • Visual and mechanical inspections
  • Hydraulic system service and repair
  • Swivel and seal replacement
  • ERS testing and certification
  • Control system upgrades
  • Structural repairs and modifications
  • Operator training and documentation
  • 24/7 emergency service

Equipment Types

  • Marine loading arms (all manufacturers)
  • Counterbalanced and hydraulic systems
  • Emergency release couplers (ERC)
  • Quick connect/disconnect systems
  • Vapor recovery arms
  • Cryogenic loading arms
  • Control systems and interlocks
  • Position monitoring systems

What We Service

Annual/Periodic Inspections

Visual/NDT checks, envelope verification, counterbalance checks, leak points, and corrosion mapping.

ERS & Functional Tests

Emergency Release System function tests, load cell checks, permissives, and alarm verification.

Documentation

Condition reports with punch list, risk ranking, and recommended corrective actions.

Swivel/Seal Replacement

OEM seal kits, bearing service, torque checks, and leak remediation.

Hydraulic/HPU Service

Actuator rebuilds, hose/line replacement, filtration, pressure/flow calibration.

Structural & Alignment

Trunnion/bearing alignment, pedestal fasteners, wear pads, and counterweight setting.

Controls & Interlocks

PLC/HMI upgrades, proximity sensors, envelope interlocks, and SCADA tie-ins.

Vapor Return / ERS Retrofits

Design and installation of vapor lines, emergency release systems, and quick-disconnect couplers.

Material Upgrades

Corrosion-resistant materials, low-temp packages, and high-pressure modifications.

Operator Training

Safe operation procedures, emergency protocols, and routine maintenance practices.

Documentation

As-built drawings, O&M manuals, inspection records, and regulatory compliance files.

Maintenance Planning

Preventive maintenance schedules, spare parts inventory, and lifecycle management.

FAQ

How often should loading arms be inspected?

OCIMF and USCG recommend annual inspections at minimum, with more frequent checks for high-use facilities or arms handling hazardous materials. We provide customized inspection schedules based on your specific usage patterns.

Can you service all brands of loading arms?

Yes, our technicians are trained to service all major manufacturers including Emco Wheaton, OPW, Kanon, FMC, and others. We maintain an extensive inventory of OEM and compatible replacement parts.

What's involved in ERS testing?

Emergency Release System testing includes function checks of quick-disconnect couplers, verification of breakaway forces, testing of hydraulic/pneumatic systems, alarm verification, and documentation of test results for compliance purposes.

How long does a typical service visit take?

Routine inspections typically take 1-2 days per loading arm. Repairs and overhauls can range from 2-5 days depending on scope. We work with your operations schedule to minimize downtime and can provide 24/7 service when needed.

Keep Your Loading Arms Safe & Compliant

Our experienced technicians provide comprehensive inspection, maintenance, and repair services for all types of marine loading arms.

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