Galvanized Friction Rock Bolts for Mining, Hollow Grouting, Waterproof, Anti-Corrosion, High Quality and Low Price, Strong and Durable Split Bolts for Mine
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Product Highlights
- Customizable Dimensions: Available in various sizes with custom length options to meet specific mining requirements.
- Galvanized Surface Treatment: Provides superior anti-corrosion protection for long-term durability in harsh mining environments.
- OEM and ODM Services: Full customization available including brand, design, and specifications based on client drawings.
- ISO 9001 Certified Quality: Manufactured under strict quality control with ISO9001, ISO14001, and ISO45001 certifications.
- 1-Year Warranty Coverage: Comprehensive warranty covering mechanical defects and quality issues within the usage period.
- Custom Packaging Solutions: Tailored packaging options including fumigation-free wooden boxes and trademark printing available.
- High Production Capacity: Capable of producing 200,000 rollers annually with 4 dedicated production lines.
- Low Minimum Order Quantity: Accepts orders starting from just 1 piece, allowing for flexible purchasing and sampling.
Product Attributes
- Customization
- Available
- After-sales Service
- 24h
- Warranty
- 1 Year
- Model NO.
- Customized
- Certification
- ISO 9001:2000
- Standard
- AISI, ASME, BS, ANSI, JIS, GB, GOST, ASTM, DIN
- Surface Treatment
- Galvanized
- Manufacturing Process
- Forging
- Material
- Carbon Steel
- Typle
- Galvanized
- Color
- Customized
- Size
- Customized
- Lengh
- Customized
- Metiral
- Steel
- Transport Package
- Customized
- Specification
- Customized
- Trademark
- Xinyongduo
- Origin
- China
- HS Code
- 8431432000
- Production Capacity
- 12000ton/Year
- Package Size
- 10.00cm * 10.00cm * 10.00cm
- Package Gross Weight
- 100.000kg
- Lead Time
-
15 days (1 - 10 Pieces)
To be negotiated ( > 10 Pieces)
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of Galvanized Friction Rock Bolts for Mining, Hollow Grouting, Waterproof, Anti-Corrosion, High Quality and Low Price, Strong and Durable Split Bolts for Mine
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Product Description


D(mm) | L(mm) |
Φ30 | 1000-5000 |
Φ33 | 1000-5000 |
Φ39 | 1000-5000 |
Φ40 | 1000-5000 |
Φ42 | 1000-5000 |
Φ43 | 1000-5000 |
Φ46 | 1000-5000 |
Φ47 | 1000-5000 |
Φ48 | 1000-5000 |







Models of anchor plate:120mm,130mm,150mm,200mm,300mm,etc;
conveyor roller model:φ89,φ108,φ133, φ159,φ195 etc;800#and 1000 #
belt conveyor,intermediate frame,longitudinal beam,etc.
We are a manufacturing factory with export license.
2. What do I need to provide in order to confirm that the product information is accurate?
We handle technical drawings for any non-standard products. If the order is for a standard part, simply provide us with the part number
3. Do you have products in stock?
No. All products are produced according to your order.
4. Can you produce hoses with my own brand?
Yes, we have been providing OEM services to famous manufacturers for several years. Please email to discuss details.
5. Can I order samples?
certainly. We can provide free samples of common models of rollers,
6. What benefits will I get?
Your customers are satisfied with the quality.
Your customers continue to place orders.
You can gain a good reputation from your market and get more orders.
7. What type and brand of bearings do you usually use?
Large clearance C3 ZZ type deep ball bearings, available in LYC, S KF, F AG, NSK, etc. According to customer requirements.
8. What is your payment term? zhong
Wire transfer or letter of credit. Other payment terms we can also discuss.
9. Can it be customized? What is the minimum order quantity?
We support customization according to your requirements. Minimum order quantity is 1 piece.
10. What is your production capacity of rollers and belt conveyors?
200,000 pieces/year of rollers.
11. What is the lifespan of your rollers?
Our rollers have a long service life and good performance, usually guaranteed to perform well under normal site and operating conditions 250,000 hours






Develop partnerships with China Coal Mining Construction, Shandong Energy, Datang Group, Shaanxi Coal Group, Shenhua Group, Yangmei Group, Jining Energy, Longyuan Group, etc.
We go our own way, create new culture, new advantages. Enhance the strength of the enterprise, establish the corporate purpose of doing a good job in the enterprise, benefiting employees, and contributing to society; adhering to the three entrepreneurial spirits of achievement, innovation, and creation, and striving to become a leading enterprise in support and transmission.
United as one, mutual benefit and win-win!
About the Supplier
This supplier has been audited by TÜV Rheinland. Verify the report on the official TÜV Rheinland website with ID "MIC-ASI2551075". Items marked "" are certified.
Company Profile
Taian Yongduo Machinery Manufacturing Co., Ltd.
Located in Feicheng, a major industrial center in Shandong Province, the company enjoys convenient access to major transportation networks, including highways and railways. Since 2015, the company has been a cornerstone of the mining machinery industry. As a full-service enterprise, we seamlessly integrate R&D, manufacturing, sales, and after-sales support, specializing in high-performance mining machinery parts and supporting materials to meet the demanding requirements of the global mining industry.
Our Production Capabilities and Facilities
We have a vast production base, including dedicated workshops spanning over 15, 000 square meters for anchor bolts, conveyor rollers, and belt conveyors. To ensure consistent quality, we implement a rigorous quality control system encompassing material inspection (using ultrasonic flaw detectors and tensile testing machines), in-process monitoring, and post-production verification. This rigorous management approach has earned us numerous certifications, including the "Mining Product Safety Mark Certificate" for rock bolts and conveyor rollers, as well as ISO9001 (quality management) and ISO14001 (environmental management), fully demonstrating our commitment to safety, reliability, and sustainability.
Core Products and Their Benefits
Our product portfolio is designed to meet a variety of mining and infrastructure needs:
Rock Bolts: We offer models such as the MSGLW335-600, MSGLD335-500, HRB400-630, and PSB500-1080, ideal for stabilizing rock formations in coal mines, metal mines, and tunneling projects.
Anchor Plates: Sizes range from 120 mm to 300 mm, with customizable thicknesses (6-12 mm) and adaptable to different bolt types.
Conveyor Rollers, Belt Conveyor Accessories: Our rollers range in diameter from φ 60 to φ 219 and utilize seamless steel tubes and precision bearings, ensuring low friction, high wear resistance, and a service life exceeding 20, 000 hours. They are suitable for heavy-duty belt conveyors in mines, ports, and industrial facilities.
We provide tailor-made conveyor systems, including intermediate frames and longitudinal beams, designed for efficient material handling, with adjustable speeds and load capacities (up to 1, 000 tons/hour).
We also offer custom fabrication services, leveraging our flexible production lines and rapid prototyping capabilities to develop customized solutions based on specific customer drawings or project requirements.
Market Coverage and Corporate Philosophy
Adhering to the principles of "Integrity, Progress, and Innovation, " we are continuously expanding our business both domestically and internationally. In China, our products are trusted by leading mining groups in Shaanxi (Shenmu Coalfield), Inner Mongolia (Ordos Mining Area), Shanxi (Datong Coal Mine), and Guizhou (Liupanshui Mining Area).
Internationally, we have established partnerships with over 30 countries, with key markets including Southeast Asia, Africa, Europe, and South America, where our products support major mining and infrastructure projects.
Our Commitment
We welcome inquiries from customers worldwide and guarantee a 24-hour response.
We provide pre-sales technical consultation, on-site installation guidance, and 24/7 after-sales support to ensure smooth project execution. Adhering to the management philosophy of "Quality First, Service Foremost, Continuous Improvement, and Meeting Customer Needs, " we are committed to achieving the quality goal of "Zero Defects, Zero Complaints. " Whether you are looking for standard products or customized solutions, Yongduo Machinery is your trusted partner to help you create excellent mining machinery products.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- Hutun Town Industrial Park, Feicheng City, Tai'an, Shandong, China
-
Plant Area
- 9821 square meters
-
Number of Employees
- 16
-
Registered Capital
- 12,000,000 RMB
-
Terms of Payment
- T/T, D/P, PayPal, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
- Peak Season Lead Time, within 15 workdays, Off Season Lead Time, within 15 workdays
-
Nearest Port
- Qingdao Port
-
Minimum Order Quantity
- 50 Pcs
-
Supply Chain Partners
- 15
Our Production Capability & Technical Expertise
-
Main Products
- Mine Machinery equipment parts, Mining Support Materials
-
Production Lines
- 4
-
Production Machines
- Anchor Rod Production Line, Pallet Production Line, Sawing Production Line, Automatic Casing Cutter, Hole Drilling Machine, Automatic Welding Machine For Ldler Rollers, Pressing Machine, Carving Machine, Automatic Flattening Milling Machine
-
Inspection Type for Finished Products
- Random inspection Visual inspection Function inspection
-
Inspection Method for Finished Products
- Have instructions and uniformly followed
-
Customization Options
- Customization from Samples,Customization from Designs,Full Customization,Minor Customization,Flexible customization
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 2 people
-
Traceability of Raw Materials
- Yes
-
Own Brand
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2015-03-11
-
Export Year
- 10 Years
-
Main Markets
- Southeast Asia/ Mideast, Domestic
-
Repeat Buyers Choice
- 50%~80%
-
Number of Foreign Trading Staff
- 5
-
Overseas Agent/Branch
- No
Our Certifications, Standards & Industry Recognition
-
Management System Certification
- ISO9001:2015, ISO45001:2018, ISO14001
-
Cooperated with Fortune 500
- No
FAQ
- Are you a factory or trading company?
- We are a manufacturing factory with export license.
- What do I need to provide in order to confirm that the product information is accurate?
- We handle technical drawings for any non-standard products. If the order is for a standard part, simply provide us with the part number.
- Do you have products in stock?
- No. All products are produced according to your order.
- Can you produce hoses with my own brand?
- Yes, we have been providing OEM services to famous manufacturers for several years. Please email to discuss details.
- Can I order samples?
- Certainly. We can provide free samples of common models of rollers.
- What benefits will I get?
- Your customers are satisfied with the quality. Your customers continue to place orders. You can gain a good reputation from your market and get more orders.
- What is your payment term?
- Wire transfer or letter of credit. Other payment terms we can also discuss.
- Can it be customized? What is the minimum order quantity?
- We support customization according to your requirements. Minimum order quantity is 1 piece.
- What is your production capacity of rollers and belt conveyors?
- 200,000 pieces/year of rollers.
- What is the lifespan of your rollers?
- Our rollers have a long service life and good performance, usually guaranteed to perform well under normal site and operating conditions 250,000 hours.
Send your message to this supplier
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