High Strength Transmission Chain Black Painted Welded Steel Chain Mining Chain
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Product Highlights
- High Strength Alloy Steel: Manufactured from high-quality alloy steel, heat treated and proof tested for superior lifting performance.
- Multiple Grade Options: Available in Grade 80 and Grade 100, offering high strength-to-weight ratios for various lifting needs.
- Custom OEM Service: Full customization available including logo printing, specific dimensions, and tailored packaging methods.
- Strict Quality Standards: Compliant with EN818-2, ISO3077, JIS, and ASME B30.9 standards with third-party inspection options.
- Safety Factor 4:1: Designed with a standard 4:1 safety factor for Grade 80 and 100 chains to ensure reliable lifting.
- Diverse Surface Treatment: Options include black tempered, electro galvanized, hot dip galvanized, and painted finishes for corrosion resistance.
- Fast Response Service: Inquiries replied to within 12 hours with professional engineering support for design and optimization.
Product Attributes
- Customization
- Available
- Usage
- Transmission Chain, Drag Chain, Conveyor Chain, Dedicated Special Chain
- Material
- Iron
- Model NO.
- SA-SCG
- Surface Treatment
- Polishing
- Feature
- Fire Resistant
- Chain Size
- 1/2"*3/32"
- Structure
- Welded Chain
- Color
- Solid Color
- Item
- Chain
- Raw Material
- Stainless Steel, Alloy Steel
- Function
- Lifting/Conveyor Chain
- Diameter
- Diameter From 6mm to 42mm
- Brand Name
- Shengao, OEM
- Standard or Nonstandard
- Nonstandard
- Factory
- Over 15 Years Experience in Producing
- OEM
- Available
- Dimension
- 10-100mm
- Certificates
- SGS, ISO9001:2015
- OEM Service
- Yes
- Custom Made
- Yes
- Logo Printing
- Customized
- MOQ
- 1ton
- Free Sample
- Yes
- Transport Package
- Plywood Box
- Specification
- SGS
- Trademark
- Shengao
- Origin
- Weifang City, Shandong Province, China
- HS Code
- 7325109000
- Production Capacity
- 500ton/Month
- Package Size
- 60.00cm * 45.00cm * 40.00cm
- Package Gross Weight
- 100.000kg
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 High Strength Transmission Chain Black Painted Welded Steel Chain Mining Chain
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Product Description
High Strength Welded Alloy Steel G80 Short Link Chain Lifting Chain
| Product name |
Marine Anchor Chains, Link Chain |
| Place of origin | Shandong China |
| Material | Carbon steel, Alloy steel, Steel, Stainless steel |
| Size | 14mm-130mm |
|
Ports |
Port of Qingdao |
| Sample |
The sample is free, the freight should be on your account before your first order. |
| Surface | black tempered, electro galvanized, hot dip galvanized, painted. |
| Payment term | T/T, Western Union, or L/C at sight |
| Delivery time | Usually within 15-30 days according to your required size quantity. |
| Using range |
Marine chain;Fishing&boat;main chain;cement lifting round chain |
| Service |
Your inquiry will be replied to within 12 hours. |

1. Chain is designed and manufactured for superior lifting performance. It can withstand more abuse, abrasion resistance, and greater load lifting per size. It is lighter to handle for application. Produced from high-quality alloy steel, heat treated, and proof tested. Reliable for lifting applications.
2. Safety factor: 4:1
3. Embossed with marking for identification and traceability.
4. Finish: black tempered, electro galvanized, hot dip galvanized, painted.
5. Length and width of the chain link are adjustable.
6. Can be manufactured in accordance with standard: EN818-2, ISO3077, JIS standard, US federal specification, etc.


1. WCB, LCB, stainless steel, low carbon steel, and alloy steel are available.
2. Rich experience in materials ASTM WCB, LCB, low carbon steel, and alloy steel.
3. Professional tooling and process to reduce cost.
4. Excellent surface and inner quality.


More Standard
- Ordinary Mild Steel Link Chain;
- ASTM80 Standard Link Chain;
- NACM90 standard link chain ;
- NACM96 standard link chain ;
- NCM2003 standard link chain ;
- USA Standard Chain with Hooks;
- Australian Standard Link Chain;
- Germany Standard Link Chain;
- Japanese standard link chain ;
- Norwegian Standard Link Chain;
- Korean Standard Link Chain;
- Weldless Chain;
- Stainless Steel Link Chain;
- Chain Accessories;
- Animal Chain.
- Lifting chain ;
- Lashing chain;
- Cain for the ship ;
- Fishing chain ;
- Chain with clevis/eye grab hooks on both ends;
High Tensile Chain
- G100 Lifting Chain
- G80 Lifting Chain;
- Lifting Chain-General;
- Lashing Chain;
- Debarking Chain;
- Mining Chain;
- Three-link chain for Coal Transfer;
- Transport Chain-general;
- Chains for Ash Handler;
- Fishing Chain;
- Tuna Chain;
- Chain for Ship;
- Stud Chains for Ship;
- Studless Chains for Ship.
Notes: Special specifications and marks can be made according to customers' requirements


Our Feature:
1) In-house capability: OEM service as per customers' requests, with in-house tooling
design & fabricating.
2) Professional engineering capability: on product design, optimization and
performance analysis.
3) Manufacturing capability range: DIN 3960 class 8 to 4, ISO 1328 class 8 to 4, AGMA 2000 class
10-15, JIS 1702-1703 class 0 to 2, etc.
4) Packing: Tailor-made packaging method according to customer's requirement.
5) Just-in-time delivery capability.
Our Services
1. Long-standing reputation in this field.
2. Specialization is standard and accurate to meet your requirement.
3. OEM quality standard guaranteed.
4. Product upgrading and expansion of species.
5. Good quality with competitive prices.
6. Flexible and convenient logistic service.
7. Excellent and high-quality control.
8. Long-lasting working lifetime.
9. Sufficient storage.
10. Original truck spare parts and professional manufacture.
11. High technology and stable performance.
12. Various sizes and models are available.
Application: bucket elevator, conveyor, scraper Chains for bucket elevator, conveyor and scraper SCIC produce round steel link chains per DIN 764 (G30 & G50, 2010 version) and DIN 766 (2015 version) standards, for applications in bucket elevator, conveyor, and scraper. Chains specified here shall not be used as lifting accessories, slings or any other overhead hoisting.
1. What types of lifting chains do you manufacture?
We specialize in high-performance alloy steel lifting chains for industrial applications:
Grade 80 & Grade 100 Alloy Lifting Slings: The standard for overhead lifting. Grade 100 offers higher strength-to-weight ratio.
Single, Double, Triple, & Quad Leg Slings: With various master link configurations.
Endless (Grommet) Slings
Custom Assemblies with hooks, shackles, and other fittings.
Welded & Mechanical Assembly Lugs.
2. What is the difference between Grade 80, Grade 100, and Grade 30/43 (Proof Coil)?
This is the most critical distinction for safety and performance:
Grade 30/43 (Proof Coil): General purpose, NOT for overhead lifting. Used for tie-downs, towing, logging.
Grade 80 (Alloy): Standard for overhead lifting. Heat-treated alloy steel. Marked with "80" on each link.
Grade 100 (Alloy): High-performance lifting chain. Stronger than Grade 80, allowing a smaller diameter chain to lift the same load, making it lighter and more flexible. Marked with "100".
We manufacture and recommend Grade 80 and 100 for all overhead lifting applications.
3. How is the Working Load Limit (WLL) determined?
The Working Load Limit (WLL) is the maximum load the chain assembly is certified to lift in a straight, in-line pull. It is calculated as:
WLL = Minimum Breaking Force (MBF) / Safety Factor
For Grade 80, the standard safety factor is 4:1.
For Grade 100, the standard safety factor is 4:1 (or 5:1 depending on regional standards).
The WLL is derated based on the sling angle. We provide comprehensive load charts.
4. How do I select the correct chain size and configuration?
Selection requires knowing:
Weight of the Load: The maximum weight to be lifted.
Lifting Configuration: The angle of the sling legs (e.g., straight pull, 60°, 45°, 30°). As the angle decreases, tension on each leg increases dramatically.
Type of Hitch: (Basket, Choker, Vertical).
Environment: Exposure to heat, chemicals, or abrasion.
We strongly recommend consulting a qualified rigger or using our online WLL calculator. Our technical team can assist.
5. How do I request a quote?
For a precise quote, please provide:
Chain Grade (80 or 100) and Diameter.
Sling Configuration (Single leg, 2-leg, etc.) and Length.
Required WLL or load details.
Type of end fittings (hooks, master links, etc.).
Any required certifications.
Certifications: Our chains are manufactured and tested to ASME B30.9, EN 818-2/5, ISO 7593, and other major regional standards. Third-party inspection and certification (e.g., ABS, DNV) available.
6. Can you supply the complete lifting assembly?
Yes. We are a complete lifting solutions provider. We can supply ready-to-use assemblies including:
Alloy Chain of specified grade, size, and length.
Master Links, Coupling Links, and Intermediate Links.
Hooks (Grab, Clevis, Eye, Sorting) with safety latches.
Shackles (Bow, Dee).
All components are rated and matched to the chain's WLL.
7. How should lifting chains be inspected and maintained?
Daily inspection is mandatory for safety:
Visual Inspection: Look for wear, nicks, gouges, stretch, corrosion, or deformed links.
Gauge Inspection: Use a go/no-go gauge to check for link elongation. If the gauge drops into a stretched link, the chain must be removed from service.
Cleaning & Lubrication: Clean off debris and apply a light coat of oil to prevent corrosion.
Record Keeping: Maintain an inspection log for each sling.
8. Are your chains suitable for high-temperature use?
Alloy chains lose strength at high temperatures. The maximum working temperature for Grade 80/100 is 400°F (204°C). For higher temperatures, special considerations and derating are required. Consult our engineers for high-temp applications.
9. What is your MOQ (Minimum Order Quantity)?
Standard Chain Slings (from catalog): MOQ 50 pieces.
Bulk Chain by the Meter: MOQ 1,000 meters.
Custom OEM Assemblies: MOQ 100 pieces (negotiable).
10. What is the lead time?
Standard Slings: 20-30 working days.
Custom/Certified Orders: 35-45 working days.
Quality First, Price Best, Service Foremost!
We assure you of our best services at all times!
About the Supplier
This supplier has been audited by TÜV Rheinland. Verify the report on the official TÜV Rheinland website with ID "MIC-ASR2551414". Items marked "" are certified.
Company Profile
WeiFang Shengao Machinery Co., Ltd is located in WeiFang the famous city in China and the world center of kites. It is 140 kilometers far away from Qingdao port, the transportation is very convenient. Our company use the location advantages of ShanDong province to integrate resources so that we can processing according to the drawings of customers.
We mainly undertake the forging parts, stamping parts, casting parts, machining parts and other machinery spare parts. The main products we could do are gears and gear boxes, manhole covers, bucket teeth, flywheels, stove fireplace, cookwares, pump and valve spares, engine spares...Our products have been exported to the United States, Denmark, Italy, Russia, Australia etc for more than 15 years.
The material we can adopt is included various kinds of cast steel and cast iron, heat-resistant steel, carbon steel, alloy steel, alloys and other customized materials. We have strong processing capacity, we own MAZAK, HSS, YOUJI and other brands machining centers from the abroad, we also have lathes, NC lathes, NC milling, boring, grinding, drilling, broaching and wire electrode cutting machines, which are used to ensure we can fulfill different machining requirements from our customers.
We can produce according to the drawings of customers. Our Import and Export Department have many years experiences of foreign trading and our products are mainly exported to the United States, Denmark, Italy, Russia, Australia, Iran, Pakistan, South Africa etc.
Over the years, company adhere to the guideline for management of "Quality first, Reputation first, Delivery just-in-time, Price best". We will try our best to improve the technical level and perfect the enterprise management. Our company will depend on superior quality of products and sincere service to cooperate with domestic and overseas, new and old customers and establish eternal friendship to create a bright future. Sincerely welcome your drawings and samples or any other kinds of designs, our team will try the best to serve you and satisfy all the requirements you have.
Why choose us to produce your parts?
1) Experienced staffs will reply you in 24 hours.
2) Welcome OEM, ODM and Smaller quantity.
3) Exclusive and unique solution can be provided to you.
4) Special discount and protection of sales area.
5) Random quality inspection during production.
6) Delivery on time.
7) At a competitive price from our own factory.
About Our Factory & Business Background
- Address
- Room1002-1005, No. 10 Building, Yuhe Road, Shengli Street, Kuiwen District, Weifang, Shandong, China
-
Plant Area
- 41 square meters
-
Registered Capital
- 1,000,000 RMB
-
Terms of Payment
- LC, 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: one month
Off Season Lead Time: within 15 workdays -
Nearest Port
- Qingdao Port
Our Production Capability & Technical Expertise
-
Main Products
- Mechanical Parts
-
Customization Options
- Customization from Samples, Customization from Designs, Full Customization, Minor Customization, Flexible customization
-
R&D Engineers
- 2 people
Our Industry Experience & Global Business Record
- Export Year
- 2010-04-06
-
Main Markets
- North America, Europe, Southeast Asia/ Mideast
-
Number of Foreign Trading Staff
- 5
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- No
FAQ
- What is the difference between Grade 80, Grade 100, and Grade 30/43?
- Grade 30/43 is for general purpose/towing, NOT for overhead lifting. Grade 80 is the standard for overhead lifting (heat-treated alloy). Grade 100 is high-performance, stronger than Grade 80, allowing smaller diameter chains for the same load, making it lighter and more flexible.
- How is the Working Load Limit (WLL) determined?
- WLL = Minimum Breaking Force (MBF) / Safety Factor. For Grade 80/100, the standard safety factor is 4:1 (or 5:1 depending on regional standards). WLL is derated based on sling angle. We provide comprehensive load charts.
- How do I select the correct chain size and configuration?
- Selection requires knowing: Weight of the Load, Lifting Configuration (angle), Type of Hitch (Basket, Choker, Vertical), and Environment. We recommend consulting a qualified rigger or using our online WLL calculator.
- How do I request a quote?
- Please provide: Chain Grade (80 or 100) and Diameter, Sling Configuration and Length, Required WLL or load details, Type of end fittings, and any required certifications.
- How should lifting chains be inspected and maintained?
- Daily visual inspection for wear, nicks, stretch, or corrosion is mandatory. Use a go/no-go gauge for link elongation. Clean debris and apply oil. Maintain an inspection log. Remove from service if stretched.
- What is your MOQ (Minimum Order Quantity)?
- Standard Chain Slings: MOQ 50 pieces. Bulk Chain by the Meter: MOQ 1,000 meters. Custom OEM Assemblies: MOQ 100 pieces (negotiable).
- What is the lead time?
- Standard Slings: 20-30 working days. Custom/Certified Orders: 35-45 working days.
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