An overseas buyer sends a photo of a milking parlor or a stainless-steel processing line and asks for a complete quotation. The picture shows the general type of equipment, but it rarely shows the planned capacity, site dimensions, electrical supply, cleaning arrangement or installation scope. Two suppliers can quote very different prices for what appears to be the same project.
Before ordering dairy equipment from China, confirm five things in writing: what the equipment must do, what is included in the quotation, how it will be inspected, how it will be shipped, and who will prepare the site and commission it. Getting these details agreed early makes later price comparisons far more useful.
This checklist covers individual dairy-farm machines as well as combined milking, cooling, milk-processing and packaging projects.
1. What Information Does a Supplier Need Before Quoting?
A product photograph is useful for identifying a machine category. A workable quotation requires the operating conditions behind it. Start with the type of project: replacing one machine, expanding an existing line or building a new dairy facility.
| Equipment or project | Information that changes the quotation |
|---|---|
| Milking parlor | Cow numbers, cows milked per session, target milking duration, parlor layout, automation level and milk-transfer route |
| Bulk milk cooling tank | Milk volume per milking, incoming milk temperature, cooling requirement, ambient temperature, power supply and cleaning preference |
| Pasteurization or processing line | Product types, daily and hourly output, temperature/process requirements, available utilities and packaging format |
| Filling and packaging machine | Bottle, pouch, cup or carton sample; fill volume; product viscosity; desired packs/hour; closure and cleaning requirements |
| Barn equipment | Herd size, alley or stall dimensions, flooring, existing drawings, site climate and connection points |
For a new installation, send a dimensioned layout or at least marked measurements, photographs and a sketch showing door openings and major utilities. For an existing plant, also identify the equipment that must stay in service.
A preliminary budget can be prepared from partial information, but the formal technical specification should be agreed before production begins. Changes to capacity, voltage, controls, packaging material or dimensions should be recorded in a revised document rather than scattered across email or messaging threads.
2. Calculate Capacity Using the Working Schedule
A machine's rated hourly throughput and the plant's daily production are different measures. Cleaning, changeovers, startup and planned interruptions reduce the time available for production.
Required operating rate = Daily production target / Net production hours.
Suppose a dairy plans to process 20,000 L/day over two eight-hour shifts. If cleaning, startup, changeovers and planned stops leave 12.5 productive hours, the line must average:
20,000 / 12.5 = 1,600 L/h.
The next question is whether the proposed equipment can sustain that rate with the actual product. A line may process plain milk faster than a viscous yogurt recipe, or fill 1 L bottles faster than smaller packages requiring more filling cycles.
Ask the supplier to identify the performance assumptions behind the offered capacity: product, batch or continuous operation, feed temperature, cleaning cycle, discharge method and any downstream bottleneck. For expansion projects, compare the current requirement with the planned future stage; capacity reserves should come from that plan rather than an arbitrary percentage.
3. Confirm the Site Interfaces Before Freezing the Design
The most expensive installation changes often involve equipment that fits the process on paper but not the building. Ask for an interface schedule alongside the equipment specification.
| Interface | Information to confirm |
|---|---|
| Electrical | Voltage, frequency, phases, installed load, starting current, grounding and control-panel connections |
| Water and drainage | Required flow, pressure, water quality, drain locations and wastewater handling |
| Heating and cooling | Steam, hot water, chilled water, glycol, refrigeration or other required services |
| Compressed air | Working pressure, air consumption, quality and connection size where applicable |
| Process connections | Inlet/outlet sizes, elevations, valve locations and connections to existing lines |
| Civil and access | Equipment footprint, loaded weight, foundations, door dimensions, lifting route and maintenance clearances |
| Controls | PLC/interface requirements, sensor signals, language, data exchange and any existing management system |
Check 50 Hz and 60 Hz Motors Before Export
A common electrical configuration in China is 380 V, three-phase, 50 Hz. An overseas site might supply 400–415 V at 50 Hz or 460–480 V at 60 Hz, among other arrangements. The country name is only a starting point; the buyer should confirm the power available at the actual installation site.
Consider a four-pole induction motor connected directly to mains power. Its theoretical synchronous speed is 1,500 rpm at 50 Hz and 1,800 rpm at 60 Hz—a 20% increase. Actual shaft speed is slightly lower because of slip. For a centrifugal pump or barn ventilation fan, higher speed can also increase the load on the motor. A milking vacuum pump, agitator or gearbox-driven scraper may have its own allowable speed and control requirements.
| Item to verify | What to put on the technical sheet |
|---|---|
| Motor and gearbox | Rated voltage/frequency, rated shaft speed and suitability of the driven machine |
| Vacuum, milk or cooling-water pump | Required flow or vacuum at the site frequency and operating point |
| VFD and control cabinet | Input voltage/frequency range, motor parameter settings, protective devices and wiring drawings |
| Refrigeration unit | Compressor and condenser-fan ratings for the local grid and ambient conditions |
A motor with a suitable dual-frequency rating, correctly specified frequency converter or revised motor/gearbox arrangement may solve the mismatch. The practical step is to agree on the entire driven assembly's 50/60 Hz performance, not just change the voltage printed on the quotation. Nidec's motor frequency guidance explains why motor ratings must be evaluated for the actual supply.
A customer buying a pasteurizer should also confirm the water, steam or electrical heating capacity, cooling-water system, holding section, cleaning connections and downstream filling speed. These stages have to work together at the planned output.
For standard equipment, NexAgri can provide specifications, configuration lists, utility requirements and installation/foundation information. Larger layouts and detailed integration documents are developed around the project drawings and agreed scope.
4. Verify the Supplier and Inspect the Equipment
Business registration, a factory address and product photographs are a starting point. For a significant order, the more revealing question is whether the supplier can show how the proposed equipment will be made, inspected and prepared for delivery.
A factory visit, live video review or independent inspection can cover fabrication and assembly areas, material identification, welding and finishing, control-panel assembly, test equipment, spare-parts preparation and export packing. When several manufacturers supply components of one dairy project, ask who coordinates the overall equipment list and interface responsibility.
Check the Actual Stainless Steel, Seals and Compliance File
For a milk-contact tank or processing line, start with the bill of materials (BOM) and identify which parts touch the product. A sales sheet saying "food-grade stainless steel" leaves unanswered questions about the tank shell, product pipes, valves and welded fittings.
| Component or record | What an international buyer can ask for |
|---|---|
| Tank, product pipes and fittings | Specified stainless grade, such as AISI 304 (EN 1.4301) or 316L (EN 1.4404), and the parts where each grade is used |
| Steel material certificate | A traceable Mill Test Certificate (MTC); where agreed, an EN 10204 Type 3.1 inspection certificate with chemical/test results and heat or batch number |
| Food-contact gaskets and seals | Material (EPDM, NBR or silicone), intended food-contact use, temperature range and compatibility with milk, detergents and sanitation chemicals |
| Hygienic fabrication | Product-contact finish, drainability, weld treatment, access for cleaning and agreed inspection or test records |
| Electrical and machinery compliance | Applicable declaration of conformity, safety documentation, wiring diagrams, operating manuals and equipment identification |
| Independent inspection | Named inspector, test scope, date, equipment inspected and nonconformity report where relevant |
An EN 10204 Type 3.1 certificate reports specific material inspection results and is tied to the supplied material lot through its identifying records. Match the heat number and grade to the product-contact material being purchased. The British Stainless Steel Association's certificate guide explains what Type 3.1 records contain. Request the certificate type during technical confirmation, when material traceability can still be planned.
304 and 316L are different specifications, rather than interchangeable labels. Selection depends on the product, chloride exposure, cleaning agents and design. A 316L tank still needs sound welds, correct cleaning and a suitable finish. Likewise, listing EPDM or NBR does not by itself establish food-contact compliance: obtain the relevant material declaration or test documentation for the destination market and service conditions. The European Commission's food-contact material guidance sets out the EU framework.
For equipment destined for the EU, ask for the applicable EU Declaration of Conformity and identification of the relevant product legislation and technical documents. For orders approaching 2027, check the planned placing-on-the-market date against the EU machinery framework and its transition to Regulation (EU) 2023/1230 from January 2027. See the European Commission machinery guidance.
Factory registration, quality-management credentials and test reports can also be reviewed, with each document matched to the supplier and actual equipment being ordered.
5. FAT vs. SAT: What Should Be Tested?
Factory Acceptance Testing (FAT) checks the assembled equipment against an agreed test plan before shipment. Site Acceptance Testing (SAT) checks the installed equipment at the customer's facility after connections, startup and commissioning. The tests should match the equipment and what can realistically be demonstrated at each location.
| Equipment | Useful FAT checks | Additional SAT checks |
|---|---|---|
| Milk cooling tank | Agitator, controls, sensors, electrical protection, leak checks and available refrigeration tests | Cooling performance with the specified load and site conditions; cleaning and utility connections |
| Milking system | Vacuum equipment, pulsation components, assemblies, controls and supplied parts | Installed vacuum/pulsation performance, milk flow, washing circuit and complete parlor operation |
| Pasteurizer | Control sequence, valves, instrumentation, alarms and applicable factory-run checks | Process performance, holding-time/temperature verification, interlocks and CIP at the installed flow |
| Filling machine | Run with the agreed pack sample, fill-weight checks, capping or seal checks and start/stop response | Product trial, upstream/downstream synchronization and site cleaning procedure |
| TMR or barn equipment | Drive operation, controls, safety devices, dimensions and assembled functions | Load handling, movement within the barn and local operator training |
Agree on the test method, product or substitute test medium, sample size, acceptable results, responsible witnesses and how findings will be closed. A video of a running machine is useful evidence, but it does not replace recorded measurements where the specification calls for them.
NexAgri can coordinate live factory inspection, customer visits and third-party pre-shipment inspections. The agreed FAT items should be available for review before the shipping milestone. SAT is scheduled around site readiness, utilities and the buyer's local installation team.
6. Compare Quotations With the Same Scope
An equipment-only price and an installed-line price should never appear in the same comparison column without their exclusions. Ask each bidder to return a scope table, ideally attached to the proforma invoice (PI) or technical agreement.
| Quotation item | Question to settle |
|---|---|
| Main machine | Exact model, capacity, materials and controls? |
| Accessories | Pumps, valves, piping, compressors, platforms or conveyors included? |
| Cleaning equipment | CIP equipment and connections included, or separately quoted? |
| Electrical | Control cabinet, field cables and installation wiring included? |
| Testing | FAT, witness inspection and third-party inspection charges? |
| Export packing | Crating, skids, anticorrosion protection and loading included? |
| Freight and insurance | Which named place or port, and under which Incoterms rule? |
| Installation | Remote guidance, engineer travel, local labor and training covered? |
| Spares and warranty | Which parts, period, shipping costs and response process? |
For most NexAgri equipment orders, the sequence is technical confirmation → formal quotation/PI → contract and T/T deposit → production → agreed inspection → balance payment → shipment. Payment milestones, lead time, warranty, installation support and the required documents are recorded in the contract for the particular order.
If a buyer requests a change after drawings or configurations are approved, the revised specification should also identify any impact on price and delivery date.
7. FCA, FOB and CIF: Know Where Cost and Risk Change
International buyers often ask only for an FOB price. But shipping cost, cargo risk, insurance and destination charges need to be understood separately. The precise named place and Incoterms® 2020 rule should appear on the quotation and contract.
| Term | What the seller arranges | What the buyer should check |
|---|---|---|
| FCA — named place | Delivery to the buyer's carrier at the agreed point, with export clearance as required | Carrier handover point, loading responsibility and onward freight |
| FOB — named loading port | Delivery of goods on board the vessel | Ocean freight, insurance, destination port and inland delivery |
| CIF — named destination port | Main sea freight and the prescribed cargo-insurance cover, in addition to shipment obligations | Insurance level, arrival charges, customs clearance and onward transport |
Under CIF, the seller arranges and pays for carriage and insurance to the named destination port, but the risk of loss or damage normally passes when the goods are loaded on board at the port of shipment. The default CIF insurance is also a minimum-cover arrangement under Incoterms® 2020. The International Chamber of Commerce explains these differences.
For machinery shipped in containers and handed over to a carrier at an inland point or container terminal, FCA is often worth considering rather than using FOB automatically. The final choice depends on the contracted transport arrangement.
Even a CIF quotation does not necessarily cover import duties, destination-terminal charges, customs-broker fees, domestic delivery, unloading at site or installation. Put those items into the buyer's landed-cost sheet before comparing offers.
8. Export Packing Can Change the Freight Plan
A common quotation error is estimating freight from the bare machine dimensions. Export packing adds skids, timber, steel supports, cushioning, moisture protection and room for securing cargo. The result can be larger and heavier than the unpacked equipment.
Worked example: a crate that no longer fits a standard container door
Consider a processing machine with the following planning dimensions:
| Measurement | Unpacked machine | Packed shipping unit |
|---|---|---|
| Length | 2.10 m | 2.50 m |
| Width | 1.80 m | 2.42 m |
| Height | 2.20 m | 2.50 m |
| Calculated rectangular volume | 8.32 m³ | 15.13 m³ |
The shipping-unit volume has increased by approximately 82%. More importantly, its 2.42 m packed width exceeds the typical 2.34 m door opening of a standard 40 ft high-cube (40HQ/40HC) container. Raising the container height does not solve that width problem. The supplier and forwarder would need to consider a redesigned crate or disassembly into modules, or price a suitable special-cargo method. A freight forwarder's container guide shows typical internal and door dimensions; actual equipment and loading clearances must be checked for the booked container.
This is why a container plan should be checked after crate design, not only against the original equipment drawing. Ask for final dimensions, gross and net weights, lifting points and center-of-gravity markings before the freight booking is confirmed.
For a real shipment, useful photo records include the machine before packing, protective treatment, packing/skid assembly, measured finished dimensions, lifting and loading, internal restraints, and the sealed container. Where regulated solid-wood packaging is used, check applicable ISPM 15 treatment and marking requirements for the destination market; the International Plant Protection Convention maintains the relevant international standard.
9. Check Customs Documents and the Receiving Site
At minimum, the shipment record usually needs to reconcile the commercial invoice, packing list and transport document. The model descriptions, quantities, package numbers and shipping weights should agree. Depending on the destination and contract, the buyer may also need a certificate of origin, insurance certificate, conformity documents, manuals and other import approvals.
HS Codes for Common Dairy and Livestock Equipment
International shipments use the Harmonized System (HS) for customs classification. These six-digit entries are useful starting points when a buyer prepares an inquiry or checks a draft invoice:
| HS subheading | General product description | Example to investigate |
|---|---|---|
| 8434.10 | Milking machines | Milking equipment or qualifying milking-machine assemblies |
| 8434.20 | Dairy machinery | Certain machinery used in dairy processing |
| 8419.50 | Heat exchange units | Standalone plate heat exchangers |
| 8436.10 | Machinery for preparing animal feed | Certain feed-preparation or TMR mixing equipment |
| 8436.80 | Other agricultural machinery under heading 8436 | Certain barn or livestock equipment, if its design and function fit the heading |
A pasteurizer, refrigeration unit, bulk milk tank, standalone pump or complete processing line needs closer examination. Depending on its primary function and construction, customs classification may involve 8419.89, 8418.69, 8434.20 or another heading. For example, 8419.50 identifies heat-exchange units; putting every plate cooler under 8419.89 would miss that distinction. The UN Statistics Division HS classification and the destination customs tariff provide a starting reference.
The HS six-digit level is internationally harmonized, but importing countries add further national tariff digits. The customs broker should confirm the final code against the actual machine, its function, whether it is shipped complete or in parts, and the applicable tariff and import controls.
Can a Certificate of Origin Reduce Import Duty?
For qualified China-origin equipment, a preferential certificate or other permitted proof of origin may help the importer claim a lower duty under an applicable trade agreement. Some relevant arrangements include:
- China–ASEAN FTA (ACFTA): Preferential Form E for qualifying trade with ASEAN members.
- China–Australia FTA (ChAFTA): An accepted certificate or declaration of origin for goods meeting ChAFTA rules.
- RCEP: An applicable proof of origin for qualifying trade between participating economies.
Confirm the tariff rate for the particular HS code and importing country, then check product-specific rules of origin and the required proof. A general Certificate of Origin used for commercial documentation and an FTA preferential origin proof do not necessarily serve the same purpose. Machinery shipped from a Chinese port is not automatically Chinese-origin under an FTA.
The ASEAN Tariff Finder's ACFTA page identifies Form E, while the Australian government's ChAFTA origin guide explains its documentation options. NexAgri can coordinate applicable shipping and origin documentation after the final equipment list, destination and eligibility have been checked.
Before the truck arrives at the destination site, the buyer should check:
- Building access, unloading position, door heights and floor load limits.
- Crane or forklift capacity and safe lifting arrangements.
- Foundations, anchors, drains and water connections.
- Electrical supply and local protection devices.
- Compressed air, steam, chilled water or refrigeration services where required.
- Clearances for maintenance and operator access.
- Availability of local civil, electrical and pipe-installation personnel.
A machine that clears customs but cannot pass through the plant doorway is still a delayed project. Confirm the unloading and movement route with the packed and unpacked dimensions, since the machine may have to be uncrated outside before it can enter the building.
10. Installation, Commissioning and Spare Parts
The handover plan should say who performs each task. NexAgri can provide installation drawings, remote guidance, videos, training, spare parts and project-arranged engineer support. For full farm or dairy-processing projects, the buyer normally arranges the local civil works, electricians and piping installers, coordinated with the agreed technical documents and site supervision plan.
A practical responsibility schedule assigns owners to foundation preparation, unloading, mechanical positioning, utility connections, control wiring, commissioning tests, operator training and final acceptance. Engineering travel, visas, accommodation and extra site visits belong in the quotation or contract where applicable.
Before dispatch, agree on recommended spare parts and their part numbers. For cooling and processing systems, this may include specified sensors, seals, valve components or control parts; for milking equipment, wear items such as liners and pulsation components; for barn systems, belts, blades or bearings as appropriate. Choose the spares list for the equipment actually ordered.
Warranty language should identify what is covered, how a claim is reported, whether remote diagnostics come first, who supplies replacement parts and how freight and on-site labor are handled. This avoids turning a minor service problem into a long dispute over responsibility.
11. What a Complete Dairy Equipment Purchase File Should Contain
Before authorizing production, the buyer and supplier should be able to identify one approved version of the technical and commercial package:
- Equipment scope, quantities and approved configuration list.
- Technical specifications, capacity basis and relevant drawings.
- Site utility and installation-interface schedule.
- Performance acceptance criteria and agreed FAT/SAT plan.
- Agreed material grades, seal specifications, traceability and compliance documents.
- Incoterms rule, named place, HS-code review, origin proof and packing responsibilities.
- Payment milestones, production schedule and change-control procedure.
- Spare-parts list, warranty and installation-support terms.
- Final packing list, shipping documents and destination receiving plan.
The file should be usable by the purchasing team, forwarder, local installer and equipment operator without relying on verbal explanations from one person.
How NexAgri Supports International Dairy Equipment Orders
NexAgri Solutions, based in Zhangjiagang, China, supplies equipment for dairy farms and milk-processing projects, including milking systems, milk cooling tanks, barn equipment, manure handling, pasteurization and processing/packaging lines.
For international buyers, the scope can cover equipment selection, standard specifications, configuration and utility lists, layout/interface coordination, factory inspection arrangements, export packing, shipping documents, installation guidance and spare-parts support. Site-specific engineering documentation and third-party inspection are included according to the agreed project requirements.
Explore NexAgri's dairy equipment range and processing and packaging solutions. To request a quotation, contact NexAgri with your intended products, target capacity, destination country, site drawing and preferred delivery terms.
Frequently Asked Questions
Can I get an accurate quotation from a machinery photo?
A photo helps identify the equipment type. Add the required capacity, operating conditions, available utilities, dimensions and intended application to compare actual configurations. For larger projects, a floor plan and process description are essential.
Can an overseas buyer arrange a third-party inspection before shipment?
Yes. NexAgri can coordinate factory visits, live inspections and third-party inspection arrangements. Define the inspection scope, test conditions, access and reporting requirements before the equipment is ready for shipment.
What is the difference between FAT and commissioning at my site?
FAT checks agreed functions and performance that can be demonstrated at the factory. Site commissioning and SAT verify installation, utilities, integrated controls and operating performance under the conditions at the destination facility.
Does a CIF quotation include customs clearance and delivery to my farm?
Normally the quoted CIF destination is a named port, not the farm. Import clearance, port charges where applicable, inland transport, unloading and installation need to be checked as separate cost items.
Who arranges local installation labor?
For NexAgri's larger projects, the buyer generally provides local civil, electrical and piping teams. NexAgri can supply drawings, remote guidance, training and project-arranged on-site engineering assistance as defined in the contract.
Can I request a 304 or 316L material certificate for a milk tank?
Yes, buyers can specify the stainless grade and required material documentation in the technical agreement. For traceable steel lots, request an MTC and, where appropriate, an EN 10204 Type 3.1 certificate showing the heat or batch number. Ask separately for product-contact seal materials and their compliance records.
Can a 380 V/50 Hz milk pump be used on a 460 V/60 Hz site?
The motor and driven equipment must be reviewed together. A direct-on-line induction motor has a higher synchronous speed at 60 Hz, which changes the duty of the pump or gearbox. Specify a confirmed 60 Hz motor and pump combination, a suitable dual-rated arrangement or an engineered VFD solution before shipment.
Does a Chinese Certificate of Origin guarantee lower import duty?
No. The importer must qualify under the selected agreement's origin rules, tariff schedule and documentation requirements. For example, ASEAN trade may use ACFTA Form E, while Australian imports may use ChAFTA or RCEP proof of origin where eligible.
Conclusion
The useful question before ordering dairy machinery is not simply, "What is the machine price?" It is "What exactly will arrive, how will we prove it meets the specification, and what is needed to put it into service?"
Put the capacity basis, equipment configuration, acceptance tests, shipping terms, final packed dimensions and installation responsibilities into one agreed purchase file. That gives both buyer and supplier a clear route from quotation to commissioning.
