Zhejiang Hongyun Industrial Co., Ltd.
浙江鸿运实业有限公司
Zhejiang Hongyun Industrial in Yongkang runs a farm-equipment components catalogue alongside its automotive and power-component business. The farm range covers copper-tin, copper expansion-tube and aluminium expansion-tube radiators, fan generators and gear covers. Start from your engine installation and what the part must do: the same S195N code appears in all three radiator types, and a radiator, a fan generator and a gear cover each need different checks. Hongyun makes components, not complete tractors.
Three kinds of farm-engine part
Hongyun also makes vehicle half shafts, alternators, starters and thermal parts. For a farm engine, order through the agricultural catalogue and treat each part type as its own enquiry. Component suppliers from other workshops, from chains to hydraulic motors, are gathered in our parts and attachments category.
[1][2][4][6][7][8][11][17]Radiators
Choose the construction first. The farm catalogue lists copper-tin, copper expansion-tube and aluminium expansion-tube radiators separately.
Fan generators
Give the full fan and generator code. Ask for its own specification; the vehicle alternator range is a separate product line.
Gear covers
Give the cover code and the engine it mates with. The RT140 is a cover; gears, bearings and transmissions are separate.
S195N radiators in three constructions
The copper-tin, copper expansion-tube and aluminium expansion-tube lists each carry an S195N. Ask Hongyun to confirm mounting, cooling performance and interchangeability for the version you choose.
[5][6][9][15][19]| Catalogue entry | What to settle before ordering |
|---|---|
| Copper-tin S195N | The photo shows a compact dark radiator with a top cap and side mounting flanges. Ask for dimensions, coolant volume and heat rejection. |
| Copper expansion-tube S195N | A separate construction. Ask for its drawing and current bill of materials, since the copper-tin photo shows a different build. |
| Aluminium expansion-tube S195N | Ask for core and tank construction, mounting and coolant requirements, and whether Hongyun approves it to replace a fitted copper unit. |
| Engine name | Give the engine maker, exact model and revision, and the existing part marking. Ask about any OEM licence or approval in writing. |
Tell Hongyun the cooling duty
Hongyun's radiator pages give no heat-rejection capacity, coolant flow or pressure limits, or air-side curve. A photo helps identify a replacement; a new installation needs sizing.
[4][5][6][9][15]Describe the engine installation
Send the engine configuration, working load and installation drawing, so Hongyun can work from the real heat load.
Describe the air path
Give fan and airflow data, the enclosure and field dirt such as crop debris. Ask for radiator performance and cleaning access in that installation.
Fix fluid and connections
Ask for coolant requirements, connections, cap pressure and mounting details for the exact assembly.
Agree acceptance
Request the drawing, leak and pressure test limits and thermal test data for the part you approve.
Models and specifications
Quote the exact model, configuration and operating conditions together, and ask the factory to confirm current availability.
No reviewed machinery listings are currently published for this manufacturer. Request a current model-specific catalogue before selecting equipment.
Fan generator: mechanical and electrical fit
The photo shows a bladed assembly with a central shaft and nut, a mounting frame and electrical leads. The same category also lists S195N/FF1990 and S195N/FF1890. Ask Hongyun how these three differ.
[7][10][16]| S195N/FF1890A topic | What to ask for |
|---|---|
| Mounting | Mounting pattern, shaft interface, rotation, operating speed, blade clearance and overspeed limit, on a dimensioned drawing. |
| Airflow | Fan performance and the radiator and enclosure layout it was designed for. |
| Electrical output | Voltage, current and output against speed, connector pin-out and whether a regulator or rectifier is included. Confirm whether it charges at 12 V or 24 V. |
| Parts supplied | Mounting hardware, electrical controls and guards included, and whether a full retrofit kit is available. |
Gear covers need the mating drawing
The RT140 photo shows a metal cover with several fixing holes, round openings and a projecting cavity. That is enough to recognise the type, but shaft and bearing fits, sealing faces, material, seals and machining state are not shown. The catalogue also lists KP22, KP36, S195 and S1110 covers.
Send the existing cover marking and the engine drawing it mates with, and say whether you want a casting, a machined cover or a cover with hardware. Agree datums, critical measurements, sealing and cleanliness for that part.
[8][11][17]Is this a fit for your project?
Based on the manufacturer's published range.
A good fit for
- Enquiries for Hongyun's farm radiators, fan generators or gear covers.
- Company name and address matching the registration, with original part photos.
- A dated government notice naming Hongyun as an employer.
Confirm in writing before ordering
- Mounting and interface drawings, and thermal or electrical performance.
- Finish and parts included, test reports for your order, and certificates that cover farm parts.
- Contracting company and division, sample approval, change control, and written commercial and service terms.
Hongyun's test resources and your part
Hongyun's R&D page covers material analysis, process development and testing, with coordinate measurement, spectroscopy, hardness, vibration, salt-spray, dust and environmental tests. It also names alternator and starter durability tests. Ask which tests apply to your farm part.
[2][9][10][11][12]| Hongyun lists | What to request for your order |
|---|---|
| Radiators | Leak, pressure and thermal test results for the approved radiator. |
| Fan generators | Which electrical, mechanical and environmental tests the assembly passes. The starter and alternator programmes belong to the automotive range. |
| Gear covers | A material and dimensional report tied to the drawing revision and lot, with calibrated measurement. |
| Engineering staff | The page gives 33 engineers in one paragraph and 32 in another. Ask who will support your part. |
Certificates and the 2023 notice
Hongyun lists IATF 16949, ISO 9001, ISO 14001 and Zhejiang Made certifications. Its gallery shows an IATF certificate titled 2024–2027 whose scope is axle-shaft manufacturing. Ask Hongyun for certificates that cover radiators, fan generators or gear covers, and check their status with the issuer.
On 13 December 2023 the Jinhua engineering-title committee published a professional-title pre-assessment notice on a Zhejiang government site. Hongyun appears as an employer at entry 109. The notice concerns staff titles at that date and has nothing to do with product approval.
[2][13][14][18]Company, history and brands
Hongyun's Chinese introduction and contact page match 浙江鸿运实业有限公司 and its registered address; the English site uses Zhejiang Hongyun Industrial Co., Ltd. Hongyun dates its business to 1992, while the present company was registered in March 1999.
Hongyun also names the Hongyong, Boyu and Shanma brands and has motor, half-shaft and other divisions. Ask which company signs the contract and which division makes your farm part, and ask in writing about any OEM authorisation or engine-maker approval. Price, MOQ, lead time and warranty come from a quote for the exact part.
[1][2][3][4]Sample, approval and production control
A good quote fills in the interfaces the catalogue leaves out. Radiators and castings both feature in our component-sourcing guide for Chinese factories, along with the first-article checks that release a part.
[3][4][9][10][11][12]Name the part
Radiator construction plus engine code, the full fan-generator code, or the exact cover code, with your engine installation and the original part details.
Approve a sample
Check it against the drawing, supply scope and agreed function tests. For a replacement, record every fitting difference.
Control production
Tie approved samples and inspection records to material, drawing revision and lot marking. Agree how changes to core, blades, connectors or cover machining are approved.
Set delivery and service
Agree packing and rust protection, quantity and date, replacement part marking and written defect and support terms with the contracting company.
Questions buyers should settle
Are all S195N radiators the same replacement?
What voltage is the S195N/FF1890A fan generator?
Is the RT140 gear cover a complete gearbox?
Does the IATF certificate cover the radiators?
What is the December 2023 notice?
A professional-title pre-assessment list that names Hongyun as an employer. It is unrelated to factory or product approval.
[14]Zhejiang Hongyun Industrial Co., Ltd.
A useful inquiry starts with a clear task
Prepare the same requirement for each supplier. Add the exact model, configuration and acceptance conditions before comparing quotations.
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Before comparing the order
0 of 6 essentials checked
Sources
Each source is listed with the date it was checked. Ask the factory to confirm current stock, certificates and approvals for your market.
Official English homepage
manufacturer · Record checked 2026-10-11
English company name and the agricultural product category.
Official Chinese company introduction
manufacturer · Record checked 2026-10-11
Company name, history from 1992, brands, divisions and listed certifications.
Official Chinese contact page
manufacturer · Record checked 2026-10-11
Company name and Yongkang address.
Official agricultural components catalogue
manufacturer · Record checked 2026-10-11
Five farm-part categories: three radiator types, fan generators and gear covers.
Official copper-tin radiator list
manufacturer · Record checked 2026-10-11
Copper-tin radiator model names, including S195N.
Official copper expansion-tube radiator list
manufacturer · Record checked 2026-10-11
Copper expansion-tube radiator models, including S195N.
Official agricultural fan-generator list
manufacturer · Record checked 2026-10-11
Fan-generator codes such as S195N/FF1890A, FF1890 and FF1990.
Official gear-cover list
manufacturer · Record checked 2026-10-11
Gear-cover codes including RT140, KP22, KP36, S195 and S1110.
Official S195N copper-tin radiator detail
manufacturer · Record checked 2026-10-11
S195N copper-tin radiator page with photo.
Official S195N/FF1890A detail
manufacturer · Record checked 2026-10-11
Fan-generator page with photo.
Official RT140 cover detail
manufacturer · Record checked 2026-10-11
RT140 gear-cover page with photo.
Official R&D page
manufacturer · Record checked 2026-10-11
Test equipment and programmes, with engineer numbers.
Official certification gallery
manufacturer · Record checked 2026-10-11
Displayed certificates, including an IATF certificate titled 2024–2027.
Zhejiang professional-title pre-assessment notice, December 2023
government · Record checked 2026-10-11
Jinhua engineering-title list naming Hongyun as an employer at entry 109.
Original S195N radiator photograph
manufacturer · Record checked 2026-10-11
Photo of the S195N copper-tin radiator.
Original S195N/FF1890A photograph
manufacturer · Record checked 2026-10-11
Photo of the fan-generator assembly with leads.
Original RT140 cover photograph
manufacturer · Record checked 2026-10-11
Photo of the RT140 cover.
Original displayed IATF certificate
manufacturer · Record checked 2026-10-11
IATF certificate with an axle-shaft manufacturing scope.
Official aluminium expansion-tube radiator list
manufacturer · Record checked 2026-10-11
Aluminium expansion-tube radiator models, including S195N.
Related buying guides
Sourcing farm machine components to drawing from Chinese factories