What are the payment terms?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

What is the lead time for production?

The lead time is 1-3 months, depending on the season (peak or off-peak).

Where is the company located?

Hunan Yier Mining Technology Co., Ltd. is located in Changsha City, Hunan Province, China.

Raise Boring Machine at-4000L with 400m Depth 4m Diameter for Mining Ventilation Shaft

Name: Raise Boring Machine at-4000L with 400m Depth 4m Diameter for Mining Ventilation Shaft
Brand: Hunan Yier Mining Technology Co.,Ltd.
SKU: 2288795685

Hunan, ChinaHunan Yier Mining Technology Co.,Ltd.

US$585,000.00-1,150,000.00

1 Set

Product specifications

Maximum Drill Depth

Norminal Diameter

Product profile

After-sales Service

24 Hours on Line Service

Warranty

12 Months

Certification

CE, RoHS, ISO 9001:2000, ISO 9001:2008

Model NO.

AT-4000L

Condition

New

Motor

AC Motor

Drill Hole Diameter

400meter

Drill Hole Depth

>300m

Bit Type

Cone Bit

Drilling Way

Rotary

Pump Head

Shaft Depth 20-50m

Flow Rate

30-35m³/H

Deviation Rate

0.5%

Pilot Hole

1.5-2m/H

Reaming

1-2m/H(Rock Hardness Coefficient:8-12)

Crew

1 Main + 1 Assistant Per Shift

Drill Rods

φ286× 1200 mm

Transport Package

Nude Packing

Specification

6910(L)*17500(W)*2020(H)mm

Trademark

Yier Technology

Origin

China

HS Code

8430412900

Production Capacity

200 Sets/Year

Key features

4m Diameter Large Hole: Capable of enlarging boreholes to form 4-meter-diameter ventilation shafts for mining.

Wireless Remote Control: Integrated crawler self-propelled with wireless remote control for unmanned operation.

Deep-Well Anti-Deviation: Intelligent anti-jamming and deep-well anti-deviation protection for accurate drilling.

Proven Global Performance: Successfully completed 7 shafts in Guinea project, proving reliability in fractured zones.

Intelligent PLC Control: CANBUS-based PLC system with reserved interface for smart mine integration.

High Power Motor: Equipped with 200kW AC motor and 35MPa rated pressure hydraulic system.

Flexible Operation Modes: Supports multi-speed selection and automatic parameter matching for various rock conditions.

CE and ISO Certified: Meets CE, RoHS, ISO 9001:2000, and ISO 9001:2008 quality standards.

Company profile

Hunan Yier Mining Technology Co.,Ltd.Hunan, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 3 years CertifiedNearest Port: Yantai Port; Shanghai Port; Guangzhou Port; Shenzhen PortAverage Response Time: ≤0.01h

AI-Powered supplier vetting

SummaryThe supplier manufactures raise boring machines and mining down-the-hole drilling machines and reports more than 100 employees, with over half engaged as researchers or after-sales technical engineers. It provides broad customization, 3D design, ODM, OEM, and SDK-related capabilities, and launched new products during the past year. Quality controls include raw-material traceability, 100% finished-product inspection, corrective-action procedures, and complaint-handling procedures, although only two quality inspectors are reported. The supplier has inventory capability but no overseas warehouse, overseas showroom, or valid manufacturing-capacity contract with affiliated subcontractors. Financial figures are not assessed here due to privacy requirements. Evidence of Fortune 500 cooperation supports customer experience, while repeat-buyer preference is reported at 10%–30%. Certification details are insufficient for a specific certification assessment.

Supplier typeThe supplier is a manufacturer and seller focused on mining machinery, specifically raise boring machines and mining down-the-hole drilling machines, while also covering hydraulic, electrical, security, and mechanical-electrical equipment. Its stated scope includes import, export, and agency activities, indicating both manufacturing and trading-related operations.

After-Sales capabilityMore than 50% of the reported workforce consists of scientific researchers and after-sales technical engineers, and the supplier has documented corrective/preventive-action and customer-complaint procedures with records. However, it lacks overseas warehouse and showroom services, so the evidence supports technical and procedural after-sales capability but not comprehensive overseas service coverage.

R&D capabilityThe supplier reports more than 50% of its workforce in scientific research and after-sales technical engineering roles, 15 R&D engineers, new products launched during the past year, 3D software design, ODM services, and SDK availability. These explicit capabilities support an established product-development and innovation function.

Customization capabilityThe supplier explicitly offers customization from samples and designs, full, minor, and flexible customization, along with 3D software design, ODM, and OEM services. The breadth of stated options demonstrates strong customization capability.

Client casesThe supplier reports cooperation with Fortune 500 companies, which is direct evidence of experience serving large recognized customers. Repeat-buyer preference is reported at 10%–30%, but no customer names, project details, or independently verifiable case descriptions are provided.