| Material | C1022,C1008,C10B21,304,316 |

information to be updated
| Material | C1022,C1008,C10B21,304,316 |

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View MoreZhejiang Donghe Machinery Technology Co., Ltd. is a China-based rigging manufacturer and supplier specializing in custom lifting and tensioning hardware. From our factory in Jiashan County, Zhejiang, we produce a full range of rigging components—including remove buckles, flower basket screws (turnbuckles), eyebolt screws, and ring nuts—designed for demanding industrial, construction, and marine applications. With over 100 sets of machines and an annual capacity of 8,000 tons, we supply both standard and non-standard parts to OEM and ODM customers worldwide.
Our rigging line covers the essential hardware used to connect, tension, and secure loads in lifting systems, structural bracing, and rigging assemblies. Whether you need a standard eyebolt for a lifting point or a custom turnbuckle for a tensioning system, our engineering team works from your drawings or samples to deliver parts that meet your exact specifications.
We manufacture the following rigging components, each designed for specific functions within a rigging system:
Each product is available in a range of sizes, thread types, and materials to suit your application. We also produce non-standard rigging parts per your drawings, ensuring a perfect fit for your specific system.
Rigging components are used across industries where lifting, pulling, or securing loads is critical. Our parts are suitable for:
Material selection is critical for performance and longevity. We commonly work with carbon steels (C1022, C1008, C10B21) for general-purpose rigging, and stainless steel (304, 316) for corrosive or outdoor environments. For specialized needs, we can also produce parts in aluminum, brass, or titanium alloys, depending on your requirements.
Our rigging components are manufactured to international standards, including Chinese GB, German DIN, American ANSI, and British B standards. We maintain strict quality control throughout production, from raw material inspection to final testing. Our in-house laboratory and optical sorting technology ensure that every part meets dimensional and material specifications.
We are ISO9001:2000 certified, and our quality management system covers all aspects of production. For lifting applications, we can provide material certificates and, upon request, conduct load testing to verify performance.
We understand that standard off-the-shelf parts don't always fit your design. That's why we offer extensive customization options:
Our R&D team works from your drawings or samples to develop and produce custom rigging parts. We can also reverse-engineer existing components to match your specifications.
With over 100 sets of machines and a production capacity of 8,000 tons per year, we can handle both small-batch and large-volume orders. Our cold heading workshops and quenching furnaces allow us to produce high-strength components efficiently. We also have intelligent packaging lines to ensure consistent, damage-free delivery.
While rigging components are typically simple to install, proper torque and load ratings are essential. We provide technical documentation, including installation guidelines and recommended torque values, with each order. Our after-sales support team is available to answer questions and provide guidance on maintenance and inspection intervals.
For critical lifting applications, we recommend regular inspection for wear, deformation, or corrosion. We can supply replacement parts quickly, ensuring minimal downtime for your operations.
To prepare an accurate quotation and configuration, please provide the following details:
| Parameter | Required Information |
|---|---|
| Product Type | Remove buckle, turnbuckle, eyebolt, ring nut, or custom part |
| Dimensions | Thread size, length, eye diameter, overall dimensions |
| Material | Carbon steel grade, stainless steel grade, or other alloy |
| Load Rating | Working load limit (WLL) or breaking strength |
| Surface Finish | Zinc, galvanized, powder coat, or other |
| Quantity | Estimated annual or per-order volume |
| Standards | GB, DIN, ANSI, BS, or custom drawing |
With this information, we can provide a detailed proposal, including technical drawings, lead times, and pricing. For non-standard parts, we may request a sample or drawing for engineering review.
Every rigging component we ship is inspected to ensure it meets your specifications. We can provide material test certificates, dimensional inspection reports, and, if required, load test certificates. Our quality team works with you to define acceptance criteria before production, ensuring a smooth approval process.
We package rigging components in sturdy cartons, pallets, or custom crates to prevent damage during transit. Our export experience ensures compliance with international shipping regulations. We work with reliable logistics partners to deliver to ports worldwide, with clear documentation for customs clearance.
Yes. We can engineer parts to meet your required working load limit (WLL) or breaking strength. Provide the target load and safety factor, and we will select the appropriate material and dimensions.
For marine or chemical exposure, we recommend stainless steel grades 304 or 316. We can also apply protective coatings such as hot-dip galvanizing or powder coating to carbon steel parts.
Absolutely. We produce both metric and imperial threads, and can accommodate non-standard pitches or multi-start threads based on your drawings.
Our MOQ depends on the complexity and size of the part. For standard items, we can accommodate small trial orders. For custom parts, we typically require a minimum of 1,000 pieces, but we evaluate each request individually.
Yes. We can supply material certificates, dimensional inspection reports, and load test certificates upon request. These are prepared by our in-house laboratory and quality team.
Our production process includes in-process inspections and final inspection using optical sorting technology. We also maintain strict traceability from raw material to finished part, ensuring consistency and reliability.
Our portfolio also includes Hexagon Nut, Square Nut, Trox Flanged Head Nut for applications with different operating ranges, interfaces or integration requirements.