| Primary Industry | Oil and gas drilling-fluid processing | Maintains barite and drilled-solids suspension in active mud tanks and reserve pits. | Project specification, drilling-fluid program, and applicable site safety rules. | Application references, process datasheet, tank layout, and duty-point confirmation. | Confirm tank dimensions, operating temperature, local electrical requirements, and installation conditions before quotation. |
| Secondary Industries | Mining, mineral processing, wastewater treatment, and industrial slurry handling | Used for suspension, blending, dilution, and prevention of solids settling in process tanks. | Chemical compatibility and process-equipment requirements applicable to the end use. | Material certificates, corrosion assessment, slurry data, and performance test records. | Check whether the destination country requires additional environmental, electrical, or pressure-equipment documentation. |
| Mixing Duty | Solids suspension and uniform fluid composition | Selection depends on tank volume, fluid density, viscosity, solids concentration, settling velocity, and required turnover time. | Process design calculations and purchaser-approved performance criteria. | Signed calculation sheet showing power, speed, impeller geometry, and expected mixing result. | Provide complete operating data in metric and, where required, imperial units to avoid sizing errors. |
| Drive System | Electric motor with gearbox or direct-drive arrangement | Common selection factors include motor power, output speed, service factor, starting torque, and continuous-duty rating. | IEC 60034 may apply to rotating electrical machines; the exact motor specification is project-dependent. | Motor datasheet, efficiency information, nameplate details, gearbox data, and factory inspection report. | Verify destination voltage, frequency, phase, motor efficiency class, cable entry, and mounting arrangement. |
| Explosion Protection | Use in classified areas where flammable gas, vapor, or dust may be present | Required protection level depends on hazardous-area classification, gas or dust group, temperature class, and equipment category. | IEC 60079 series and ATEX 2014/34/EU may apply when specified by the installation or destination market. | Valid Ex certificate, marking details, conformity documentation, and certified component list. | Do not assume a standard motor is suitable for hazardous areas; confirm certification acceptance with the end user. |
| Wetted Materials | Resistance to abrasive drilling mud, mineral slurry, salts, and treatment chemicals | Material choice may include carbon steel, coated steel, or stainless steel according to abrasion, corrosion, and temperature conditions. | Material grade must follow the approved engineering specification and chemical-compatibility assessment. | Material Test Certificates, coating data sheets, weld records, and corrosion allowance documentation. | Clarify whether documents must comply with EN, ASTM, or other purchaser-designated material systems. |
| Impeller Design | Low-speed axial flow, high-solids suspension, or customized mixing duty | Blade number, diameter, pitch, clearance, rotation direction, and speed affect flow pattern and power consumption. | Engineering calculation and purchaser-approved drawings are the primary control documents. | Dimensional drawing, balance report, rotation-direction marking, and inspection measurements. | Confirm whether the impeller is shipped assembled or separately packed and identify lifting requirements. |
| Shaft and Mechanical Integrity | Continuous operation under torque, bending load, vibration, and abrasive service | Key checks include shaft diameter, critical speed, bearing capacity, coupling alignment, and weld quality. | ISO 1940-1 may be used for rotor balancing requirements when referenced by the project. | Dynamic balancing report, dimensional inspection report, alignment record, and vibration test results. | Request spare-shaft, bearing, seal, and coupling part numbers for future maintenance and customs documentation. |
| Manufacturing Quality System | Consistent control of design, purchasing, fabrication, inspection, and nonconforming products | Traceable production records should connect raw materials, components, inspections, and final equipment. | ISO 9001 certification is commonly requested as evidence of a quality-management system. | Current certificate, organization scope, audit validity, quality plan, and inspection-and-test plan. | Check whether the certificate scope covers design and manufacturing of mixing or solids-control equipment. |
| Factory Acceptance Testing | Confirmation that the completed agitator meets agreed mechanical and electrical requirements | Typical checks include no-load running, rotation direction, vibration, noise, current, insulation, dimensions, and accessories. | The approved inspection-and-test plan defines mandatory tests and acceptance limits. | Signed FAT report, calibration certificates, inspection photographs, and punch-list closure record. | Agree witness points, hold points, remote inspection options, and document language before production begins. |
| Documentation Package | Operation, installation, maintenance, inspection, and regulatory support | Should normally include manuals, general arrangement drawings, wiring diagrams, spare-parts lists, and certificates required by the contract. | Document requirements are determined by the purchase order, end-user specification, and destination regulations. | Document index, revision-controlled drawings, test records, certificates, and final data book. | Confirm language, electronic-file format, legalization, notarization, and document retention requirements. |
| Packaging and Preservation | Protection during inland transport, port handling, ocean freight, and storage | Packaging should control moisture, corrosion, impact, movement, and contamination of machined or electrical parts. | ISPM 15 applies to regulated solid-wood packaging used in international trade. | Packing list, crate photographs, preservation instructions, gross and net weights, and package dimensions. | Confirm fumigation or heat-treatment marks, container loading plan, center of gravity, and lifting points. |
| Commercial and Customs Data | Cross-border purchase, customs clearance, and payment processing | Core documents normally include a commercial invoice, packing list, transport document, and certificate of origin when required. | HS classification and import requirements must be confirmed with the relevant customs authority or licensed broker. | Consistent product description, quantity, value, country of origin, weights, and serial-number records. | Use an agreed Incoterm under Incoterms® 2020 and define responsibility for freight, insurance, duties, and clearance. |
| After-Sales Support | Commissioning, troubleshooting, preventive maintenance, and spare-parts supply | Important factors include response time, remote technical support, service instructions, warranty terms, and parts availability. | Warranty and service obligations should be stated in the purchase contract. | Service network information, recommended-spares list, warranty certificate, and commissioning checklist. | Define local service responsibility, travel costs, response time, replacement-part lead time, and technical communication language. |
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