Views: 276 Author: CORTECH Publish Time: 2026-09-17 Origin: Site
Content Menu
>> What a quality supplier should prove
● Leading Suppliers Serving Vietnam
>> 1. CORTECH Drilling Equipment Co., Ltd.
>> 3. Boart Longyear Systems Through Vietnam-Based Distribution Support
>> 5. Han-Viet Mining Equipment Import-Export JSC (HAVIMEX)
>> 6. Jiangsu Sinocoredrill Exploration Equipment Co., Ltd. Through Vietnam Market Channels
● Technical Requirements Buyers Often Miss
>> Match the rig to the drilling objective
>> Materials and manufacturing quality
● Industry Pain Points and Avoidance Strategy
>> Pitfall 1: Confusing a blast-hole drill with a diamond core drill
>> Pitfall 2: Comparing depth claims without rod-size conditions
>> Pitfall 3: Treating CE as a product-quality certificate
>> Pitfall 4: Underestimating spare-parts lead time
>> Pitfall 5: Buying "OEM" without controlling technical ownership
● The Less-Discussed Insider Check
>> Step 1: Build a complete RFQ
>> Step 2: Verify legal entity and factory capability
>> Step 3: Verify ISO certification status
>> Step 4: Control samples and FAT
>> Step 5: Plan shipping and delivery
● FAQ
>> 1. How can I verify that a supplier's ISO 9001 certificate has not expired?
>> 2. What evidence proves that a rig can truly drill 1,000 m?
>> 3. Is a CE-marked diamond core drilling rig automatically compliant for Europe?
>> 4. What should be included in the first spare-parts order?
>> 5. Can a Vietnam-based fabricator build a complete diamond core rig under our brand?
Vietnam is an increasingly relevant market for mining, geological exploration, infrastructure investigation, and industrial equipment integration—but it is not yet a concentrated manufacturing hub for purpose-built all-hydraulic wireline diamond core drilling rigs. For professional buyers, the most practical Vietnam sourcing strategy is often hybrid: procure the specialized core rig from an experienced dedicated manufacturer, then combine it with Vietnam-based distributors, fabrication partners, service providers, and site-support resources.
This guide reviews companies serving Vietnam's diamond core drilling supply chain, with a focus on long-term procurement factors: engineering depth, quality assurance, OEM flexibility, documentation, local service capability, and lifecycle support. CORTECH Drilling Equipment Co., Ltd. is included first as a dedicated all-hydraulic diamond core rig manufacturer with export experience and an OEM-oriented approach.
Vietnam has an expanding industrial manufacturing base, growing mechanical-fabrication capability, and active demand for mining, quarrying, geological exploration, civil engineering, and infrastructure-related drilling equipment. Vietnam's National Statistics Office reported that manufacturing and processing output rose 11.1% year on year in the first half of 2025, while mining output declined 3.0% during the same period. This distinction matters: Vietnam is becoming stronger in industrial production and fabrication, yet demand for specialized exploration rigs still often relies on imported equipment and global brands.
Vietnam also has a meaningful minerals context. The U.S. Geological Survey identifies Vietnam as the world's second-ranked tungsten producer and notes ongoing mineral projects including the Ta Khoa nickel project in Son La Province. These resource and exploration activities sustain demand for drilling equipment, consumables, wireline systems, and field service support.
However, buyers should avoid assuming that a Vietnam-based company listed under "drilling machinery" is necessarily a true manufacturer of wireline diamond core drilling rigs. The local market contains several different supplier types:
- Dedicated foreign rig manufacturers exporting into Vietnam
- Global mining-equipment brands with Vietnamese offices or local support
- Vietnamese distributors for imported rigs, tools, and consumables
- Vietnam-based heavy-fabrication and contract-manufacturing companies
- Project contractors that supply drilling services but do not manufacture rigs
- General rock-drilling, water-well, pile, or blast-hole equipment suppliers
A hydraulic crawler drill for quarry blasting, for example, is not automatically suitable for NQ, HQ, PQ, or deep-hole wireline diamond coring. That distinction should drive every RFQ.
For this list, "top" does not mean one supplier is automatically right for every project. It refers to organizations with relevant capability, recognized market presence, engineering resources, or strategic value for buyers sourcing diamond core drilling equipment for Vietnam.
The evaluation framework emphasizes the following factors.
| Evaluation dimension | What professional buyers should verify | Why it matters |
|---|---|---|
| Product specialization | Whether the supplier designs and supports diamond core drilling rigs rather than only general drilling equipment | Wireline coring requires different torque, feed, pullback, hoisting, hydraulic, and rod-handling requirements |
| R&D and engineering depth | Hydraulic schematics, drill-head data, control-system design, component lists, technical drawings, field references | Determines whether the supplier can solve complex formation and depth requirements |
| Quality-control process | Incoming inspection, welding records, hydraulic pressure testing, assembly inspection, load testing, FAT protocol | Helps prevent leaks, misalignment, premature wear, and shipment failures |
| Compliance documentation | ISO 9001 certificate, CE Declaration of Conformity where applicable, manuals, risk assessment, electrical documents | Essential for tender qualification, import compliance, and safety management |
| OEM/ODM suitability | Branding, paint scheme, guarding, controls, engine options, drilling depth configuration, private-label documentation | Important for distributors, contractors, and mid-sized equipment brands |
| Delivery stability | Production plan, key-component lead times, export packing method, FAT schedule, spare-parts plan | A rig delayed by one critical hydraulic component can disrupt an exploration program |
| Vietnam service readiness | Local distributor, stocked consumables, remote support, commissioning plan, technician availability | Reduces downtime after arrival |
| Commercial transparency | Written scope, exclusions, Incoterms, warranty boundaries, spare-parts pricing, acceptance criteria | Prevents cost escalation after the PO is signed |
A reliable supplier should not merely send a catalog and a low quotation. It should be able to demonstrate:
- A clear drilling-capacity range, including recommended depth by rod size and geological conditions.
- Hydraulic-system data, including pump type, pressure, flow, filtration, cooling, and major valve brands.
- Drill-head torque, rotation speed range, feed stroke, pullback force, hoist capacity, and mast/boom configuration.
- Compatibility with relevant core sizes, such as BQ, NQ, HQ, and PQ, plus requested wireline tooling.
- Material and welding information for the mast, chassis, structural steel, and high-load connections.
- Factory Acceptance Test records covering rotation, feed, pullback, chuck action, hoist, safety interlocks, and hydraulic leakage.
- A spare-parts recommendation for at least 12–24 months of initial operation.
- A commissioning plan for Vietnam, including remote or on-site support terms.
Best suited for: Buyers seeking a specialized all-hydraulic diamond core drilling rig manufacturer with flexible configuration, direct engineering communication, export experience, and strong OEM/private-label potential.
CORTECH Drilling Equipment Co., Ltd. is a private high-tech enterprise focused on R&D and manufacturing of all-hydraulic diamond drilling rigs. Its product range covers core surface drills, heli-portable core drills, underground core drills, core drilling tools, and rig upgrade packages. The company states it has supplied more than 1,200 diamond core drilling rigs to customers in over 55 countries.
For procurement teams serving Vietnam, CORTECH is particularly relevant when the requirement is not simply "a drilling machine," but a configured exploration platform for wireline coring, remote field conditions, varied rod sizes, or a distributor's own brand strategy.
Core strengths
- Dedicated focus on all-hydraulic diamond core drilling equipment rather than broad general-purpose construction machinery.
- Product coverage across surface, heli-portable, underground, tooling, and upgrade applications.
- International delivery experience across more than 55 countries, according to the company's published profile.
- Second-generation hydraulic rig platform described by the company as improved in system efficiency, reliability, user-oriented design, and maintenance convenience.
- Suitable for buyers that require direct technical discussion around drilling depth, rod size, terrain, power package, transport limits, and safety configuration.
OEM and customization scope
CORTECH is a practical option for small and mid-sized brands, regional distributors, and drilling contractors that need more flexibility than a standardized global-brand procurement process may allow. Potential customization topics should be defined in a written technical annex and may include:
- Surface, skid-mounted, crawler-mounted, heli-portable, or underground format
- Target drilling depth by BQ/NQ/HQ/PQ size
- Engine, electrical, and climate-specific configuration
- Control layout, guarding, color scheme, decals, manuals, and private labeling
- Mud-pump, wireline winch, rod-handling, and tooling package selection
- Remote troubleshooting package and recommended wear-parts kit
- Pre-shipment FAT checklist tailored to the purchaser's specification
What buyers should clarify
Do not request only a "price for NQ drilling rig." A technically usable request should state the intended depth, maximum hole angle, geology, altitude, ambient temperature, transport constraints, target core size, expected shift pattern, and whether a wireline system is included. A 1,000 m NQ claim without conditions is not comparable between suppliers.
Established: The company's provided profile does not state an incorporation year; buyers should request the business-registration document and current factory details during supplier qualification.
Main markets: Global export supply; the company reports deliveries to more than 55 countries.
Best suited for: Mining groups and contractors prioritizing an established branded equipment ecosystem, formal service structures, and access to a global drilling-and-rock-excavation network.
Epiroc Vietnam operates as part of Epiroc's global mining and rock-excavation equipment network. The company states that it supplies mining equipment and services for drilling and rock excavation and serves sectors including mining, construction, demolition, recycling, water, oil, and gas.
For Vietnam projects, Epiroc may be a logical supplier to investigate where the buyer needs brand-level service systems, equipment support, consumables, or broader mine-development equipment. Its market strength is the total drilling and rock-excavation ecosystem rather than flexible private-label OEM production.
Core strengths
- Global brand with broad mining and rock-excavation experience.
- Local Vietnam market presence and support access.
- Integrated equipment, consumables, service, and technical support structure.
- Appropriate for buyers with formal vendor-approval systems and preference for a recognized multinational supplier.
OEM and customization scope
Epiroc should normally be viewed as a branded equipment and service supplier, not as a flexible private-label diamond core rig OEM. Configuration options may be available within its own product range, but buyers seeking white-label rigs, custom visual identity, or small-batch machine redesign should confirm feasibility early.
Buyer caution
Do not assume every Epiroc drilling unit is a wireline diamond core drill. Confirm the exact model, application category, core barrel compatibility, hole-size range, wireline capability, and production specification before including it in a technical comparison.
Established: Epiroc's global corporate history predates its local Vietnam presence; buyers should request the Vietnam entity's current commercial-registration and support coverage details.
Main markets: Mining, construction, demolition, recycling, water, oil, and gas.
Best suited for: Buyers who prioritize established wireline tooling ecosystems, standardized core barrels, drill rods, recovery tools, and mature BQ/NQ/HQ/PQ consumables support.
Boart Longyear equipment and wireline systems have been used in Vietnam for decades, according to Vietnam-based supplier Geotech Vietnam. The local supplier reports inventory support in Hanoi for core-barrel assemblies, parts, and diamond tools covering BQ, NQ, NQTK, HQ, and PQ sizes.
This makes the Boart Longyear ecosystem relevant for drilling contractors that already operate with established wireline practices, standard tooling dimensions, and familiar consumable specifications.
Core strengths
- Long-established global association with wireline core drilling systems.
- Recognized standardization around Q-series dimensions and compatible tooling.
- Vietnam-based stock and support claims for key tool sizes through local distribution channels.
- Suitable for buyers focused heavily on drilling consumables, wireline tools, and field-standard compatibility.
OEM and customization scope
Typically limited. This route is stronger for standardized branded systems, tooling continuity, and local access to consumables than for private-label rig development.
Buyer caution
Confirm whether the local supplier is an authorized distributor for the exact brand and product line quoted. Request a letter of authorization, local spare-parts list, warranty route, and current inventory confirmation—not merely a website statement.
Established: Boart Longyear is a longstanding global drilling-equipment brand; Vietnam distributors should be evaluated separately regarding their local operating history and authorization status.
Main markets: Mineral exploration, geotechnical drilling, resource drilling, and associated field consumables.
Best suited for: Buyers requiring Vietnam-based OEM fabrication, chassis, steel structures, machined components, assemblies, or localized manufacturing support—not necessarily a ready-made wireline diamond core rig.
THACO INDUSTRIES is a Vietnamese industrial and mechanical-engineering group with contract manufacturing, ODM, and EPC manufacturing capabilities. Its published materials describe a specialized equipment plant, robotic and certified manual welding, and compliance claims including ISO 9001, ISO 14001, ISO 45001, IATF 16949, AWS D1.1, and EN ISO 9606-1 for relevant operations.
The company also reports a manufacturing complex with 18 specialized plants and investment exceeding USD 1 billion.
For a diamond core drilling procurement project, THACO should be positioned realistically: it is potentially valuable as a heavy-fabrication and localization partner for structural components, carrier-related fabrication, enclosures, weldments, machinery assemblies, or local manufacturing programs. It should not be assumed to be a specialist designer of all-hydraulic wireline core rigs without direct technical evidence.
Core strengths
- Large-scale Vietnam industrial footprint.
- Potential support for contract manufacturing, welding, machining, structural fabrication, and assembly.
- Published quality and environmental management-system claims.
- Relevant for buyers localizing parts of a rig program or building a Vietnam-based supply chain.
OEM and customization scope
Potentially high for fabricated components, equipment assemblies, structures, and ODM/contract manufacturing programs. Buyers should conduct a detailed engineering review before assigning responsibility for high-risk drilling-system components such as the drill head, hydraulic circuit, wireline winch, and pressure-critical control assemblies.
Buyer caution
A strong fabrication company is not automatically an exploration-drill OEM. For custom projects, separate the responsibility matrix:
- Dedicated rig OEM: drill-head design, hydraulic architecture, drilling performance, FAT.
- Vietnam fabrication partner: weldments, chassis, covers, brackets, structural items, selected assemblies.
- Local service partner: commissioning, preventive maintenance, consumable replenishment.
Established: THACO's materials state it has more than 20 years of mechanical engineering and manufacturing experience.
Main markets: Industrial equipment, mechanical engineering, contract manufacturing, and OEM fabrication.
Best suited for: Vietnam-based buyers requiring local access to mining machinery, hydraulic crawler drills, consumables, components, and project-oriented supply coordination.
Han-Viet Mining Equipment Import-Export JSC, commonly referenced as HAVIMEX, is listed in Vietnam business directories as a Hanoi-based supplier of construction machinery, drilling machines, mining equipment, hydraulic crawler drills, rock drilling tools, and related consumables. The company is described as being formed by engineers experienced in supplying and operating construction machinery in Vietnam.
HAVIMEX is best evaluated as a local equipment supplier and integrator, rather than presumed to be a proprietary manufacturer of all-hydraulic wireline diamond core rigs.
Core strengths
- Local Vietnamese market access.
- Broad exposure to mining, construction, crawler-drill, and related equipment categories.
- Potential usefulness for locally coordinated supply, consumables, service support, and project logistics.
OEM and customization scope
Likely more appropriate for equipment integration, local supply, and project support than private-label diamond core rig engineering. Confirm the actual manufacturer behind every rig quotation.
Buyer caution
Ask four direct questions:
1. Who is the original rig manufacturer?
2. Is the quoted model designed for wireline diamond coring or blast-hole/rock drilling?
3. Which core sizes and drilling depths are validated?
4. Who supplies warranty support and critical spare parts after commissioning?
Established: The accessible directory information does not provide a verified incorporation year; buyers should obtain the Vietnamese enterprise-registration certificate before contract award.
Main markets: Mining, construction, transportation technology, infrastructure, hydraulic crawler drilling, and related spare parts.
Best suited for: Buyers comparing imported Chinese exploration drilling rigs, drill rods, core barrels, bits, and supporting tools for the Vietnam market.
Jiangsu Sinocoredrill Exploration Equipment Co., Ltd. is listed as established in 2006 and is described as producing exploration drilling rigs, HDD machines, water-well rigs, drill rods, core barrels, recovery tools, impregnated diamond bits, reaming shells, PDC bits, and mud pumps. The company is China-based, although it appears in Vietnam-oriented business listings and supply channels.
This supplier is relevant to Vietnam buyers because it illustrates a common regional procurement route: import the rig and tooling from a specialist Chinese manufacturer while coordinating sales, logistics, or support via Vietnam-market intermediaries.
Core strengths
- Broad exploration-drilling tooling range.
- Product portfolio covering rigs, rods, core barrels, recovery tools, diamond bits, and mud pumps.
- Established year stated as 2006 in the directory listing.
OEM and customization scope
Potentially suitable for tooling and product-package customization. Buyers should confirm actual OEM capacity, engineering ownership, testing procedures, export references, and service support before assuming an OEM program is available.
Buyer caution
The listing gives an inconsistent location presentation, referring to a Jiangyin, China address while being positioned within a Vietnam business directory. Treat this as a reminder to verify legal entity, factory location, manufacturer identity, warranty issuer, and export party before payment.
Established: 2006, according to the listed company profile.
Main markets: Mining, HDD, oil and gas, water-well drilling, exploration drilling, drilling tools, and consumables.
The following comparison is designed for preliminary supplier shortlisting. "Quote-based" means capacity and MOQ are not publicly verified and should be confirmed through a written RFQ, manufacturing schedule, and FAT plan.
| Supplier / channel | Primary role | Best-fit procurement need | OEM/ODM suitability | Capacity / MOQ | Certification or compliance evidence |
|---|---|---|---|---|---|
| CORTECH Drilling Equipment Co., Ltd. | Dedicated diamond core rig manufacturer | All-hydraulic surface, heli-portable, underground core rigs and tooling | High for rig configuration, project adaptation, private labeling, documentation support | Quote-based; project- and configuration-dependent | Buyers should request project-specific compliance files, FAT documents, and certificate copies |
| Epiroc Vietnam | Global branded equipment and service supplier | Mining ecosystem, branded support, drilling and rock-excavation equipment | Low to moderate; branded configuration rather than private-label OEM | Quote-based; depends on model and regional supply | Global supplier structure; verify exact local documentation and model compliance |
| Boart Longyear via local distribution | Wireline system and consumables ecosystem | Standardized rods, core barrels, wireline tools, BQ/NQ/HQ/PQ support | Low; primarily branded systems and consumables | Distributor stock and order-based | Verify authorization, product traceability, and local warranty route |
| THACO INDUSTRIES | Vietnamese industrial fabrication and OEM partner | Weldments, frames, machining, assemblies, localized industrial fabrication | High for fabrication, ODM, contract manufacturing, and EPC work | Project-based; requires RFQ and capacity confirmation | ISO 9001, ISO 14001, ISO 45001, IATF 16949 claims; CE-certified steel fabrication references |
| HAVIMEX | Vietnam mining-equipment supplier/integrator | Local sourcing, mining equipment coordination, crawler drill-related supply | Limited for specialized core-rig OEM; confirm case by case | Quote-based | Confirm manufacturer-specific certificates and local authorization |
| Jiangsu Sinocoredrill | Imported exploration rig/tool manufacturer serving Vietnam channels | Exploration rigs, rods, core barrels, bits, and accessories | Moderate; must be verified directly | Quote-based | Request ISO/CE files applicable to the actual exported configuration |
A diamond core drilling rig should be evaluated as a complete drilling system, not simply as a machine with an engine and mast. The most important technical interface is the relationship among rig capability, rod string, core barrel, bit, fluid system, geology, and operating method.
A procurement specification should clearly distinguish among:
- Shallow geotechnical coring
- Medium-depth mineral exploration
- Deep-hole wireline exploration
- Heli-portable mountain drilling
- Underground exploration drilling
- Directional or deviated-hole programs
- Water-rich, fractured, abrasive, clay-rich, or highly competent formations
For example, an HQ program at 600 m in fractured ground may need substantially different pullback margin, mud capacity, rod-handling safety, and tooling selection than a 600 m NQ program in competent rock. The same nominal depth does not equal the same drilling load.
Before comparing quotations, request a single standardized data sheet from every bidder:
| Technical item | Why it must be specified |
|---|---|
| Rated and maximum drilling depth by rod size | Prevents misleading "maximum depth" marketing claims |
| Drill-head torque and speed range | Determines ability to drill through different formations and bit types |
| Feed force and pullback force | Critical for casing advancement, stuck tools, and deep-hole recovery |
| Mast length and rod length | Affects handling efficiency, transport profile, and operator safety |
| Main winch and wireline winch capacity | Determines practical core-retrieval performance |
| Hydraulic pump, motor, hose, valve, and filtration brands | Reveals component quality and maintenance availability |
| Engine brand, emissions tier, and fuel specification | Important for import, site operation, and parts availability |
| Rod-handling method | A major safety and productivity variable |
| Mud-pump flow and pressure | Must match borehole condition, hole size, and flushing requirements |
| Noise, guarding, emergency stops, and electrical documentation | Important for HSE and project compliance |
| Included tools and spares | Avoids a "low price" rig that cannot start drilling on arrival |
Structural components should use appropriate certified steel grades and documented welding procedures. Buyers should request:
- Material certificates for critical structural steel where contractually required.
- Welding Procedure Specifications and welder qualifications for high-load structural work.
- Non-destructive testing records for specified critical welds.
- Hydraulic hose routing, clamp spacing, abrasion protection, and labeling.
- Pressure-test records for hydraulic systems.
- Machining tolerances and coaxiality controls for drill-head components where relevant.
- Paint-system information suitable for humid, tropical, and coastal Vietnam operating environments.
For electrical components, buyers should confirm the enclosure rating, cable protection, emergency-stop architecture, control panel labeling language, and electrical standards required by the destination project.
Many suppliers classify any rock-drilling machine as a "core drill." A crawler drill designed for quarry blasting has fundamentally different performance requirements from a wireline diamond coring system.
How to avoid it: Ask for a completed drilling reference using the same rod size, target depth, and wireline retrieval method you require. Request photos or video showing the actual rig, rod string, core barrel, overshot, and recovered core.
A supplier may state "1,000 m drilling depth" without stating whether that figure applies to BQ, NQ, HQ, or an idealized formation. This makes comparison meaningless.
How to avoid it: Require a depth matrix, such as BQ / NQ / HQ / PQ, with the assumed hole condition, drill angle, and recommended operating configuration.
CE marking is not a universal "quality grade." For relevant equipment entering the European Economic Area, it indicates the manufacturer's declaration that applicable EU requirements have been met. It does not replace a buyer's validation of engineering quality, FAT performance, or spare-parts capability.
How to avoid it: Ask for the Declaration of Conformity, applicable directives/regulations, risk assessment, technical file index, and serial-number connection between the documents and the delivered machine.
The rig might arrive on schedule, but a failed rotary seal, hydraulic pump, sensor, hose, or wireline component can stop the entire drilling program. In remote Vietnamese provinces, replacement lead times can be more costly than the part itself.
How to avoid it: Purchase a site-startup kit plus a 12–24 month critical-spares package. Include part numbers, quantities, unit prices, lead times, and warranty coverage in the contract.
Some sellers use OEM casually, even where they are simply reselling another manufacturer's machine. This can create warranty confusion, undocumented parts substitution, and inconsistent future production.
How to avoid it: Define OEM in the agreement. State who owns the drawings, who approves component substitutions, who controls branding, who maintains revision history, and who is responsible for technical documentation.
The most overlooked issue in diamond core rig sourcing is usually not the engine brand or the mast paint quality. It is the matching of hydraulic heat rejection to real drilling conditions.
A rig can look impressive during a short no-load factory demonstration but become unstable during continuous drilling in tropical heat, particularly when the hydraulic system operates at high pressure for extended periods. In Vietnam and similar humid climates, high ambient temperatures, dusty conditions, long shifts, and difficult access to clean maintenance facilities can expose weak cooling, filtration, hose routing, or tank design.
Before issuing a purchase order, ask for:
- The hydraulic cooling capacity and design assumptions.
- Maximum recommended ambient operating temperature.
- Hydraulic oil tank capacity and filtration micron rating.
- Continuous-load test duration and recorded oil temperatures.
- Hydraulic component brands and local/regional parts availability.
- A pressure and temperature log from the FAT, not only a short video.
This is a practical "inside" check because it tests sustained operating reliability rather than showroom appearance.
A serious diamond core rig RFQ should include:
- Target hole diameter and core size: BQ, NQ, HQ, PQ, or custom.
- Required drilling depth for each rod size.
- Surface, underground, heli-portable, skid-mounted, or crawler-mounted requirement.
- Hole angle and expected directional or deviation-control requirements.
- Geological conditions and anticipated water loss, fractured ground, or abrasive formations.
- Local environmental conditions: altitude, maximum temperature, rainfall, humidity, terrain.
- Preferred engine, hydraulic component, and electrical-component brands where relevant.
- Required safety features and regulatory documentation.
- Requested tooling, mud pump, wireline system, drill rods, core barrels, bits, and initial spares.
- Required commissioning, training, and warranty support.
- Target Incoterm, destination port, timeline, and acceptance process.
Do not rely only on a website, marketplace profile, or email signature. Request:
- Business registration and manufacturer/exporter identity.
- Factory address, workshop photos, and live video audit.
- ISO certificate number, issuing body, scope, valid dates, and certificate-holder name.
- Recent FAT reports for comparable rigs.
- Customer references that are legally shareable.
- Export records or shipping references where appropriate.
- A factory layout showing welding, machining, hydraulic assembly, electrical assembly, testing, and packing areas.
To confirm whether an ISO certificate is current:
1. Obtain the full certificate rather than a cropped image.
2. Check the certificate-holder's exact legal name and factory address.
3. Confirm the standard, such as ISO 9001:2015, and the scope of certification.
4. Review issue date, expiry date, surveillance-cycle information, and accreditation marks.
5. Contact the issuing certification body or use its public certificate directory where available.
6. Confirm that the certified scope actually covers manufacturing, assembly, or relevant services—not only trading or office management.
7. Reconfirm validity immediately before deposit payment if the certificate is near expiry.
An ISO certificate is useful evidence of a documented management system. It is not proof that every delivered rig will meet your specification; FAT, inspection, and contractual acceptance criteria remain necessary.
For a high-value drilling rig, the "sample" is normally a controlled pre-shipment test, not a small physical sample.
The purchase agreement should define:
- Technical specification and approved drawings.
- Approved bill of materials for critical components.
- Core-size and drilling-capability statement.
- FAT test items and pass/fail criteria.
- Video and photo requirements.
- Third-party inspection rights.
- Paint color, labels, manuals, branding, and packaging.
- Nonconformity correction process.
- Warranty terms, response time, and spare-parts obligations.
A robust FAT should test, at minimum:
- Rotation forward and reverse.
- Speed control across the operating range.
- Feed and pullback functions.
- Chuck, foot clamp, and safety interlocks.
- Main winch and wireline winch.
- Hydraulic-pressure stability and leak inspection.
- Emergency stops and safety guards.
- Instrument readings and control-panel operation.
- Engine operation and cooling system.
- Included accessories, tooling, and spare-parts packing list.
For Vietnam imports, align the shipment plan with the actual machine structure and destination conditions.
Important considerations include:
- Select the appropriate Incoterm: EXW, FOB, CFR/CIF, DAP, or DDP only after clarifying responsibilities.
- Confirm whether the rig can be containerized, requires breakbulk shipment, or needs disassembly.
- Request a packing list with gross weight, net weight, dimensions, center of gravity, lifting points, and package count.
- Protect hydraulic ports, electrical connectors, machined surfaces, and wireline equipment against salt air and moisture.
- Confirm customs classification, import licenses if applicable, local tax treatment, and destination documentation with a Vietnamese customs broker.
- Plan inland transport based on road width, bridge limits, mountain access, and offloading equipment at the drill site.
- Separate commissioning tools and critical initial spares so they are immediately accessible after unloading.
Vietnam offers meaningful value for mining-equipment distribution, industrial fabrication, localized service, consumables, and project integration. Yet for buyers sourcing a serious Diamond Core Drilling Rig, the safest decision is to distinguish between a dedicated drilling-rig manufacturer, a global branded equipment supplier, a local distributor, and a fabrication/OEM partner.
CORTECH Drilling Equipment Co., Ltd. is a strong first supplier to evaluate when the project requires all-hydraulic diamond core drilling specialization, direct engineering communication, export-oriented delivery experience, and flexible OEM customization. The company's published profile reports more than 1,200 supplied diamond core rigs in over 55 countries, alongside surface, heli-portable, underground, tooling, and rig-upgrade offerings.
For a Vietnam program, the most resilient procurement model is often:
1. Select a specialized rig manufacturer for core drilling performance and technical accountability.
2. Use Vietnam-based partners for local service, consumables, fabrication, logistics, and project coordination where appropriate.
3. Lock the technical specification, FAT criteria, documentation, spares, and warranty obligations into the purchase contract before releasing the final payment.
CTA: If you are evaluating a diamond core rig for Vietnam, prepare a project brief covering required depth, core size, geology, site conditions, transport limits, and preferred configuration. This will allow CORTECH or any qualified supplier to provide a technically comparable quotation, drilling-capability assessment, and practical spare-parts proposal rather than a generic catalog price.
Request the full certificate, then verify the legal company name, factory address, certification scope, valid-to date, certificate number, and issuing certification body. Contact the issuing body directly or search its certificate directory where available. Also verify that the scope includes manufacturing or assembly relevant to drilling equipment—not merely trading activities or administrative services.
Ask for a depth-capacity matrix by rod size, such as BQ, NQ, HQ, and PQ. Require the supplier to state the assumed formation, drill angle, rod weight, core-barrel type, mud condition, and operating configuration. Also request comparable project references and FAT documentation. "1,000 m" without rod-size and geological conditions is not a technically valid comparison.
Not automatically. CE marking must correspond to the specific machine, applicable directives or regulations, a valid Declaration of Conformity, risk assessment, technical documentation, safety labeling, and instructions. Buyers should verify that the documents identify the delivered model and serial number. CE does not replace an independent FAT or a project-specific safety review.
At minimum, request a critical-spares list covering hydraulic seals, hose assemblies, filters, pressure gauges or sensors, valves, rotary-head wear components, winch consumables, electrical relays, fuse sets, control switches, lubrication items, and frequently replaced wireline-tool components. The final list should be based on the exact model, annual operating hours, remoteness of the site, and local parts availability.
Potentially, but buyers should separate fabrication competence from drilling-system engineering. A strong Vietnam fabricator may be suitable for structures, chassis, weldments, guards, enclosures, and machining. The drill head, hydraulic circuit, wireline system, drilling-performance validation, and technical documentation should remain with a proven core-rig engineering owner unless the fabricator can provide comparable drilling references, design files, FAT data, and lifecycle support.
1. - CORTECH Drilling Equipment Co., Ltd., “[About Us]”—company profile, all-hydraulic core-rig specialization, product range, and published export delivery data. [cortechdrilling]
2. - Vietnam National Statistics Office, “[Industrial Production Index in June 2025]”—official 2025 industrial, manufacturing, and mining output indicators. [cortechdrilling]
3. - U.S. Geological Survey, “[Vietnam: National Minerals Information Center]”—Vietnam mineral-industry context, including tungsten production and nickel-project information. [mordorintelligence]
4. - Epiroc Vietnam, “[Mining and Rock Excavation Equipment]”—Vietnam market presence and sector coverage. [yellowpages.com]
5. - THACO INDUSTRIES, “[Vietnam’s Leading OEM Partner in Oversized Industrial Equipment]”—Vietnam fabrication, OEM, welding, and management-system claims. [cortechdrilling]
6. - Geotech Vietnam, “[Boart Longyear Wireline Core Drilling Systems]”—Vietnam-market availability and support statements for BQ, NQ, NQTK, HQ, and PQ drilling tools. [yellowpages.com]
