Choose the contractual supply level
The introduction names multifunction dredging equipment and hydraulic systems for cutter-suction, bucket-wheel and trailing-suction dredgers, piling/lifting vessels and other engineering vessels. Its catalogue separately lists motors, stations, winches, valve groups, consoles and transmission devices. [1] [2]
| Supply level | What the proposal must identify | Acceptance boundary |
|---|---|---|
| Motor | Exact code, performance and mounting/shaft/port drawing | Selected component and its defined conditions |
| Winch or transmission assembly | Motor, gearing, mechanical output and included load-control arrangement | Assembled mechanism and controls |
| Hydraulic station/system | Pumps, valves, cooling/filtration, circuits, controls and external connections | Integrated hydraulic duty and machine interfaces |
| Vessel equipment package | Equipment, installation, utilities, controls, commissioning and exclusions | Agreed vessel/project operation and handover |
A component quotation is not a commissioned system. A system claim is not a numerical rating for every catalogue motor.
Explain the mechanism before choosing LHM
Cutter or bucket-wheel drive
Provide mechanical arrangement, required torque/speed, operating cycle and actual load conditions. Ask who resolves drive and structure interfaces.
Winch or positioning mechanism
Supply the required motion/load case and complete assembly/control arrangement. Identify holding/stopping functions and acceptance responsibility.
Another rotary application
Provide the existing identity/drawing, hydraulic source and driven load. Do not infer compatibility because construction machinery is a listed market.
The LHM page supplies a family name, model label and photograph but no established numerical displacement/pressure/torque sheet. [3] Its inclusion in a marine-oriented catalogue does not approve a specific excavator or dredger fit.
Ask which entity supplies the package
The homepage names 宁波海禹重工有限公司 and 宁波灵润液压有限公司 together; the full company introduction names Haiyu. Their legal relationship and allocation of contract/manufacturing responsibilities are not explained in the reviewed pages. [1] [2]
| Displayed certificate subject | Named holder / evidence boundary |
|---|---|
| Transportable lifting platform | Ningbo Lingrun; displayed 2022 utility-model grant image |
| Anti-blockage cleaning pump station | Ningbo Lingrun; displayed 2023 utility-model grant image |
| Trailing-suction dredger hydraulic winch | Ningbo Lingrun; displayed 2022 utility-model grant image |
| Adjustable locating-spud bracket | Ningbo Lingrun; displayed 2022 utility-model grant image |
These four images were read on the current patent page. [4] They are neither LHM conformity certificates nor proof of current patent-register status. Confirm the quoted seller, actual manufacturer, warranty issuer and documents applicable to the proposed equipment; no group relationship or transfer is inferred.
Collect one controlled technical package
- 1
At selection
Full motor/assembly codes, drawings, circuit, operating envelope and included components, with clearly marked mechanical/electrical/hydraulic interfaces.
- 2
Before acceptance
Agreed test method, actual conditions and limits; identify the tested unit and whether the record covers a component or the complete mechanism.
- 3
At handover
Final configuration, installation/maintenance instructions, parts records and project-specific commissioning responsibility.
The visible download index names a 2016 WaterKD dredger item, not a current LHM rating sheet. [5] ISO 4409 addresses steady-state component performance testing; [6] it does not establish this supplier’s results, transient behaviour or complete-vessel approval. CivilEquip has not inspected the premises or witnessed testing.
Describe the duty and the supply boundary
Sources for this company
- Haiyu company introduction
Ningbo Haiyu Heavy Industry, marine/dredging hydraulic development and manufacturing scope; no witnessed facilities or current order performance.
Checked: 2026-10-11 - WaterKD home and catalogue
Names Haiyu and Ningbo Lingrun together, Xiangshan address and separate component/system categories. Legal relationship not explained.
Checked: 2026-10-11 - LHM motor detail
LHM title/model and catalogue photograph. Introduction/specification tabs do not establish readable numerical ratings.
Checked: 2026-10-11 - Four displayed patent certificates
Images actually read: Ningbo Lingrun named holder; lift, cleaning pump station, dredger winch and locating-spud bracket. No current patent-register status or LHM product certification authenticated.
Checked: 2026-10-11 - Download index
Visible 2016 WaterKD multifunction dredger entry; no LHM numerical datasheet established from this index.
Checked: 2026-10-11 - ISO 4409:2019 publisher abstract
Steady-state component performance testing/reporting; not a Haiyu test result or vessel-system approval.
Checked: 2026-10-11