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Case Study: 4 Hydraulic Modular Trailers for Qatar Oil & Gas
Qatar’s oil and gas sector routinely demands 200+ ton heavy-lift transport capacity for refinery vessels, heat exchangers, and pressure vessels. In 2025, an EPC contractor serving the QatarEnergy North Field expansion needed 4 hydraulic modular trailer (HMT) axle lines to expand heavy-lift capability.
Volume note: Modular HMT orders of 4-8 axle lines are typical for EPC contractor fleet expansion.
1. Buyer Profile
- Region: Ras Laffan and Doha industrial zone
- Operation: heavy-lift vessel transport within refinery and process plant turnaround projects
2. Tender Specification
- Axle lines: 4 × 6-axle-line HMT modules
- Payload per axle line: 60 ton/axle
- Configuration: 2+2 to 4+4 combination (24-axle combinations possible)
- Suspension: full hydraulic, ±300 mm lift/lower stroke
- Steering: 6-way steering per axle (cruise, diagonal, 90°, lateral, self-rotate)
3. Cost (per axle line)
| Line | USD/axle line |
|---|---|
| 6-axle-line HMT module FOB China | ~165,000 |
| Power pack + remote control | ~38,000 |
| Sea freight China → Hamad Port | ~14,000 |
| Commissioning on-site Qatar | ~8,000 |
| Landed cost, per axle line | ~225,000 |
4. After-Sales Performance
- Mean uptime: 95.5%
- Warranty claims: 2 hydraulic suspension cylinder replacements (out of 24 cylinders, expected high-load wear)
- Configuration use: 6+6 most common; 8+8 to 10+10 combinations occasional
5. What Worked
- 6-way steering enabled refinery turnaround vessel moves in tight turning radii
- Power pack included in tender — modular fleets with separate power pack are operationally difficult
- Standard Chinese OEM engineering meets EN 1993 / ASME lifting codes with documentation
6. Lessons
- For Qatar summer operation (40°C+), spec heat-tolerant hydraulic fluid and cool-down interlocks
- Sandstorm events in March-April: pre-spec dust sealing on electronic steering modules
- Plan spare hydraulic cylinder set in the first delivery — long lead times for spares in case of damage
FAQ
What is a hydraulic modular trailer?
An axle-line-based trailer system that can be combined in 4-line, 6-line, 8-line, or higher configurations to transport 200-1,000+ ton payloads. Each axle typically carries 30-60 tons. Used in oil and gas, wind energy, and shipbuilding heavy-lift.
How is steering controlled?
Modern HMT modules offer 6-way steering per axle: forward, crab, diagonal, lateral, pivot, and self-rotation. Radio remote control is standard. Operator skills are similar to SPMT operation.
What is the maximum HMT payload?
Combined HMT configurations can reach over 1,000 tons for refinery vessel and offshore module transport. Top configurations extend to 5,000+ tons with multiple power packs.
For project enquiries, fleet quotes, and tender support, contact sales@fotonintl.com. This case study is published by a manufacturer exporting 30,000+ semi-trailer units annually to 40+ countries.
