Last Updated: October 2026
What is the TERRA TS350-4 14-Ton Lifting Solution?
The TERRA TS350-4 14-ton stiff boom crane—widely recognized as a heavy-capacity telescopic lorry crane in Southeast Asia, a stiff boom cargo crane in the Middle East and Africa, and a 14t KMU manipulator in Central Asia—is a heavy-duty powerhouse engineered for high-intensity lifting operations. Delivering an impressive 350 kN·m rated lifting moment and a maximum lifting height of 17.2 meters, this heavy crane bridges the gap between medium-sized truck cranes and heavy mobile cranes. Designed for seamless integration on heavy commercial truck chassis (including 6×4 and 8×4 configurations from HOWO, SHACMAN, ISUZU, and DONGFENG), the TS350-4 occupies a compact 950 mm installation space. Fabricated with premium high-tensile structural steel, its 4-section octagonal boom configuration ensures superior structural rigidity and millimeter-level control across infrastructure, mining, oil fields, and heavy logistics.
“For heavy industrial lifting, balancing structural leverage with legal vehicle payload is critical,” states Joseph Lin, Senior Engineering Specialist at TERRA CRANE. “By engineering the TS350-4 with premium high-tensile structural steel and an octagonal boom profile, we keep the crane tare weight at 5,700 kg while providing 350 kN·m of lifting torque, giving fleet operators maximum legal freight capacity per transport.”
TERRA TS350-4 Engineered High-Performance Advantages
- High-Torque Dual-Pump Hydraulic System: Features a high-pressure dual-pump hydraulic system ($63\\text{ L/min}$ flow rate at $28\\text{ MPa}$) coupled with proportional control valves, ensuring smooth multi-action synchronization for delicate heavy loads.
- Dual Slewing Reducer System: Engineered with twin heavy-duty slewing reducers to deliver smooth, powerful 360-degree continuous slewing rotation under full 350 kN·m tilting moments.
- Top-Seat Ergonomic Control Station: Equipped with an elevated top-seat control station, offering the operator 360-degree clear visibility over the truck bed and lifting target for maximum jobsite safety.
- High-Strength Wear-Resistant Hydraulic Locks: Cast from high-hardness alloy steel to prevent hydraulic cylinder drift, maintaining unshakeable stability during static suspended lifts.
- Dual-Seal Two-Way Balance Valve: Built with a redundant double-seal internal structure to securely lock the telescoping boom at any working angle, dramatically extending valve service life.
- Bent-Axis Hydraulic Winch System: High-torque bent-axis hydraulic winch delivers fast hoisting speeds and steady cable spooling, complete with an automated over-winding alarm system to prevent wire rope snapping.
- Custom-Built Hydraulic Cylinders: Specifically designed with imported durable oil seals to withstand high friction, ensuring leak-free, powerful boom extension under maximum load.
- Deep-Quenched Slewing Bearing: Deep-hardened raceway design smoothly absorbs severe bending and tilting moments, protecting internal drive gears from wear.
- 4-Layer Steel Wire Reinforced Hoses: Heavy-duty hydraulic lines reinforced with four layers of high-tensile steel wire mesh, resisting temperatures up to 100°C and high working pressures.
- High-Dissipation Thermal Radiator: Large-volume 200L oil reservoir combined with an air-cooled thermal radiator prevents oil thinning in desert climates up to 50°C.
Technical Data & Performance Specifications
| Specification Parameters | Performance Data | B2B Fleet Advantage |
|---|---|---|
| Model | TS350-4 (TS3504) | 14-Ton Class 4-Section Stiff Boom identifier |
| Max Lifting Capacity | 14,000 kg @ 2.5 m (14 Tons) | Heavy capacity powerhouse for oilfields, mining, and heavy machinery |
| Max Lifting Moment | 350 kN·m | Provides massive leverage capacity at extended horizontal outreaches |
| Boom Configuration | 4-Section Octagonal Telescopic Boom | Octagonal geometry provides superior rigidity and anti-deflection strength |
| Max Working Outreach | 15.9 m | Wide working radius reduces the need to re-position heavy trucks |
| Max Lifting Height | 17.2 m | Reaches high elevation targets on multi-story building frames |
| Crane Self-Weight | 5,700 kg (5.7 Tons) | Lightweight high-tensile structure leaves higher legal freight capacity |
| Installation Space Required | 950 mm | Ultra-compact mounting footprint leaves maximum truck bed length |
| Slewing System | 360° Continuous Rotation (Dual Reducers) | Dual slewing drive ensures smooth rotation under heavy side torque |
| Hydraulic System Pressure | 28 MPa | High-pressure operation ensures rapid, responsive cylinder extension |
| Hydraulic Oil Flow | 63 L/min (200 L Tank) | High-flow system powers multi-function synchronized hoisting actions |
Frequently Asked Questions About 14-Ton Stiff Boom Cranes
Q: What commercial truck chassis configuration is recommended for the TS350-4?
A: Due to its 5,700 kg self-weight and 350 kN·m lifting moment, the TS350-4 is ideally mounted on heavy-duty 6×4 or 8×4 commercial chassis from top global brands like HOWO, SHACMAN, ISUZU, and DONGFENG. The installation base requires only 950 mm of mounting space between the cab and cargo bed.
Q: What is the main structural advantage of an octagonal boom profile over a standard boom profile?
A: An octagonal (8-sided) boom geometry distributes structural stress more evenly across multiple weld seams compared to standard shapes. This significantly increases resistance to lateral bending and torsional twisting when lifting maximum 14,000 kg loads at long outreach distances.
Q: How do the TS350-4 hydraulic systems handle harsh mining and tropical environments?
A: Every TS350-4 features a 200L oil reservoir and a high-efficiency hydraulic oil cooler designed to keep fluid temperatures below 60°C in Middle Eastern and African heat up to 50°C. For arctic or sub-zero regions (Central Asia/Russia down to -40°C), specialized low-temperature resistant hydraulic seals are fitted to prevent oil leaks.
