What is the warranty and after-sales service policy?

We provide warranty coverage and comprehensive after-sales service, including professional technical support.

What are the payment terms and lead time?

Payment terms include LC, T/T, and Western Union. The average lead time is within 15 workdays for both peak and off-season.

8' Reg Pin 3 Wings Drag Bit for Coal Mining

Name: 7 1/2'' (190mm) Diameter X 2 3/8' Reg Pin 3 Wings Drag Bit for Coal Mining
Brand: Changsha Sollroc Engineering Equipments Co., Ltd.
SKU: 1993466455

Hunan, ChinaChangsha Sollroc Engineering Equipments Co., Ltd.

US$50.00-70.00

1 Piece

Sample price:US$100.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Yes

Warranty

Yes

Model NO.

190MM BIT

Certification

ISO 9001:2008

Standard

ASTM

Surface Treatment

Spray-Paint

Manufacturing Process

Forging

Material

Alloy Steel

Quality

Best

Rock Formation

Soft,Middle,Hard

Use

Water Well Drilling,Mining,Exploration and etc.

Type

3 Wings Step

Transport Package

Ply-Wooden Cases

Specification

190mm

Trademark

sollroc

Origin

China(Mainland)

HS Code

82071990

Production Capacity

5000PCS/Month

Key features

High Durability Construction: Solid one-piece design with silver soldered tungsten carbide tips for strong bond.

Versatile Formation Application: Effective for soft, medium, hard, and very hard formations including sands and clays.

Aggressive Drilling Speed: Step drill bit design is more aggressive than Chevron style for faster drilling.

ISO 9001 Certified Quality: Manufactured under ISO 9001:2008 standards with alloy steel forging process.

10+ Years Manufacturing Expertise: Factory specialized in drilling tools with advanced technology and experienced technicians.

Comprehensive After-Sales Support: Professional technical support and customer service available for all operations.

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceExperienced TeamFlexible Customization

Changsha Sollroc Engineering Equipments Co., Ltd.

Hunan, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2005-05-18Nearest Port: Shanghai,Guangzhou, ShenzhenAverage Response Time: ≤24hTerms of Payment: LC, T/T, Western UnionInternational Commercial Terms(Incoterms): FOB, CFR, CIF, FCA, EXW

AI-Powered supplier vetting

SummaryChangsha Sollroc Engineering Equipments Co., Ltd. is identified as both a trading company and manufacturer/factory in China, supplying mechanical, specialized equipment and concrete additives. It reports production capacities for DTH and RC products, flexible customization, broad export-market coverage, and participation in the BAUMA trade show. However, the available information shows no inventory, overseas warehouse, showroom, agent or branch capability, and no overseas service countries. Service-capability assessment, approved-supplier management, corrective actions and complaint handling lack written procedures or records. R&D resources are limited to one engineer, with no new products launched in the past year, no ODM, branded OEM or SDK capability, and no quality-control test equipment reported. Raw-material traceability, quality assurance, environmental assessment and fire-drill status are unknown. Financial records are indicated for recent years, but the slices do not provide sufficient...

Supplier typeThe supplier is explicitly classified as both a Trading Company and Manufacturer/Factory, with a limited-company structure in China. Its stated business scope covers sales of general and specialized mechanical equipment, concrete additives, electromechanical products, non-ferrous metals, and instruments and meters.

After-Sales capabilityThe supplier reports one-month average lead times in both peak and off-season and accepts multiple quotation and payment terms, but it has no inventory, overseas warehouse, showroom, agent or branch capability and reports zero overseas service countries. Service-capability procedures, approved-supplier records, corrective-action records, and customer-complaint procedures are absent, indicating insufficient evidence of a controlled after-sales system.

R&D capabilityThe supplier has one R&D engineer whose stated responsibility is Technical Service, but launched no new products in the past year and does not provide ODM, branded OEM or SDK services. The evidence indicates limited documented innovation capability.

Production capacityReported annual capacities are 20,000 DTH hammers, 100,000 DTH bits, 10,000 RC hammers and 200,000 RC bits, with 11–20 quality-control staff and export coverage across multiple regions. However, the supplier reports zero quality-control test equipment, so production volume is evidenced but quality-control infrastructure is a clear weakness.

Customization capabilityThe supplier explicitly states that it provides flexible customization design services. This is direct evidence of customization capability, although no scope, process or example is provided.