Define the driven mechanism before the package
The introduction identifies 宁波昊瑞液压传动有限公司 and describes motor, brake-motor, steering, winch, valve, block, power-unit and system design/development/production. [1] It does not document a complete-machine manufacturing operation or approve a finished excavator.
Motor only
Send torque/speed duty, starts/stops, load direction and shaft/mounting arrangement. Obtain the exact motor code, drawing and performance curves for the proposed installation.
Motor with control block
Freeze the circuit diagram, valves/settings and external connections. Identify whether braking, load holding or other controls are actually included rather than inferred from a block category.
Complete hydraulic drive
Specify power supply, driven assembly, controls, commissioning and acceptance responsibilities. Quote individual assemblies and integration separately.
The catalogue separates blocks for orbital, radial-piston and other motors. [3] That organisation helps start an enquiry, but an assembled drawing and circuit are required to establish the delivered package.
BM1 / BYM is now a parameter review, not only a family photo
The detailed BM1/BYM page describes shaft distribution and a 6/7-tooth inserted-roller rotor/stator arrangement. It lists nine sizes, 50 through 375, with displacements from 51.3 to 370 cm³/rev and separate rated/maximum values. [2] Those rows are not a single motor’s combined operating envelope.
- Example: size 80
- 80.6 cm³/rev; source-rated speed 650 rpm and torque 160 N·m. Read the matched pressure/flow and limits on the product guide.
- Example: size 315
- 314.5 cm³/rev; source-rated speed 165 rpm and torque 360 N·m. A larger displacement is not a substitute shaft or mounting definition.
The source explicitly disallows simultaneous maximum speed and maximum pressure. Its 375 pressure column also needs correction/clarification. Review an individual size and source labels →
Other headings include Danfoss, Eaton and White family references. [3] These are supplier comparison labels; no authorized relationship, original-brand status or drop-in replacement has been authenticated. Compare full codes and interfaces instead of relying on the familiar name.
Keep steering and winch requirements separate
| Catalogue route | Data needed from the installation | Documents to request |
|---|---|---|
| BZZ1 open-centre, non-reaction steering heading | Actual vehicle steering circuit and complete installed-unit identity. | Proposed unit’s function, displacement, connections and applicable operating limits. |
| BZZ5 load-sensing steering heading | Load-sensing circuit/interface requirements, not only external dimensions. | Complete circuit/connection and unit specification for the proposal. |
| 1000-series hydraulic winch heading | Actual pulling/lifting purpose, drum arrangement, duty and required controls. | Exact winch model, applicable load/layer chart, brake/control and acceptance documents. |
These are separate catalogue entries. [3] A motor rating is not a winch lifting capacity, and a steering-family label cannot validate the installed vehicle circuit. Define the actual offer with the responsible designer.
Ask how the reported performance was measured
Horey’s model page gives rated figures at rated flow/pressure, describes maxima, and reports an 80°C maximum working-oil temperature. [2] It does not provide a retrieved order-lot test report, efficiency map or final installation validation.
- 1
Release the exact variant
Align displacement, shaft/flange/ports, drain arrangement and circuit drawing with the manufacturer’s returned code and limits.
- 2
Agree the acceptance point
State speed/torque, flow/pressure, fluid/temperature and measurement conditions, with agreed sampling and records tied to the delivered identity.
- 3
Validate the assembled drive
Review driven loads, starting/braking, shaft forces, controls and thermal conditions separately from a bench motor test.
ISO 4409’s publisher scope concerns performance/efficiency testing and steady-state result presentation for rotating positive-displacement components. [4] It is useful when agreeing a test basis, not evidence that this supplier has passed it. No verified current certificate, independent factory visit or platform-witnessed endurance test is assigned.
Send the mechanism and circuit together
Sources for this company
- Horey company introduction
Chinese company identity and stated design/development/production range. No independent workshop or certification audit.
Checked: 2026-10-11 - BM1 / BYM shaft-distribution orbital motors
Nine size columns, rated/maximum table, pressure ambiguity for size 375 and source operating limitations.
Checked: 2026-10-11 - Horey product navigation and series headings
Recorded official homepage catalogue, including other-brand comparison labels, steering categories and separate block families. Ordinary HTTP access blocked on 11 October; company/model pages read in browser.
Checked: 2026-10-11 - ISO 4409:2019 publisher abstract
Steady-state performance/efficiency testing and result presentation scope; no Horey motor test or conformity established.
Checked: 2026-10-11