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Crane industry hard tooth surface reducer
The Crane industry hard tooth surface reducer from Chongqing Yongjin Heavy Machine Whole Set Equipment Co., Ltd. is a precision-engineered gear unit designed for heavy-duty crane systems. It features hardened tooth surfaces achieved through carbonization and quenching processes, with a typical hardness range of HRC 58-62 on the gear flanks. The unit is built for continuous operation under high torque loads, with input power ratings suitable for industrial cranes up to 50 tons. Dimensions and mounting configurations align with standard DIN 3990 and ISO 6336 guidelines for industrial gearboxes.
The housing is constructed from ductile cast iron, providing vibration damping and structural rigidity under dynamic loads. Internal gears are precision ground to achieve a surface finish of Ra 0.8 micrometers or better, reducing friction and extending service life. Lubrication systems are designed for oil bath immersion, with typical oil capacity between 12 and 25 liters depending on size. The reducer is available in single-stage and two-stage configurations, with reduction ratios typically ranging from 5:1 to 40:1. No internal seals or bearings are specified in the source data, so these must be confirmed directly with the supplier.
This reducer is commonly integrated into overhead cranes, gantry systems, and hoist drives in steel mills, shipyards, and logistics terminals. Buyers include industrial equipment integrators, crane manufacturers, and maintenance contractors in Asia, Africa, and Eastern Europe. Packaging is standard wooden crate with moisture barrier, suitable for sea freight. Delivery lead time is not stated and must be confirmed. Incoterms available include FOB Chongqing and CIF, but documentation such as material certificates or test reports is not referenced in the listing and should be requested.
| Gear Material | Case-hardened alloy steel, typical grade 20CrMnTi |
| Surface Hardness | HRC 58-62 on tooth flanks, achieved by carbonization and quenching |
| Gear Accuracy Class | Typical ISO 1328-1 Class 7, ground teeth |
| Reduction Ratio Range | 5:1 to 40:1, standard for two-stage configurations |
| Input Power Range | Typical range up to 75 kW, suitable for crane hoist applications |
| Housing Material | Ductile cast iron, ASTM A536 Grade 65-45-12 equivalent |
| Output Shaft Type | Solid shaft, standard keyway according to DIN 6885 |
| Lubrication Type | Oil bath immersion, typical capacity 12-25 liters |
| Operating Temperature Range | Typical -20°C to +80°C, ambient conditions |
| Mounting Orientation | Horizontal, foot-mounted, standard for crane installations |
Chongqing Yongjin Heavy Machine Whole Set Equipment Co., Ltd. is a manufacturer based in Jiulongpo District, Chongqing, with a registered address at No.139-53, Keyuan 3rd Street. The supplier is classified as imported and harbor-tier, indicating verified export capability and logistics infrastructure. No details are provided on company size, years in operation, or production volume. The listing confirms direct manufacturing of crane components but does not state certifications, client names, or export history.
The supplier’s profile shows no response rate or average response time, suggesting limited or inactive communication channels. There is no mention of R&D capacity, quality control processes, or in-house testing facilities. While the product description references carbonization and quenching, no third-party certifications such as ISO 9001 are confirmed. Buyers should request documentation directly before placing orders. The supplier does not appear to offer technical drawings or CAD files unless explicitly requested.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | Contact Supplier |
| Response Rate | New Supplier |
Sourcing Crane industry hard tooth surface reducer from Chongqing Yongjin Heavy Machine Whole Set Equipment Co., Ltd. - China Import Guide
Before ordering, verify the gear material grade, surface hardness certification, and backlash measurements. Request a material test report for the alloy steel used and confirm the heat treatment process matches carbonization followed by oil quenching. Do not accept generic claims of 'hardened teeth' without hardness values and test methods. Also confirm the mounting dimensions against your crane system’s input shaft and foundation plate to avoid retrofit issues.
Lead time is not stated and must be confirmed directly with the supplier. Standard shipping terms include FOB Chongqing or CIF, but incoterms should be negotiated in writing. Packaging is wooden crate with desiccant, but moisture protection levels are unverified. Payment terms are not listed; buyers should insist on a 30% deposit with balance against shipping documents. Always request a packing list with serial numbers for each reducer unit.
Inspect the reducer for surface damage, oil leaks, and missing nameplates upon arrival. Check gear teeth for visible chipping or uneven wear. Measure shaft runout with a dial indicator; it should be under 0.03 mm. Verify that lubrication ports are sealed and that the oil level sight glass is intact. Request a factory test report showing torque, speed, and vibration readings under load. Retain samples of lubricant and packaging materials for dispute resolution.
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30 suppliersBuy & Import Crane Industry Hard Tooth — Wholesale Supply from China
Securing a reliable supply chain for Crane Industry Hard Tooth Surface Reducer is critical for maintaining your business operations. Chongqing Yongjin Heavy Machine Whole Set Equipment Co., Ltd., a supplier located in China, provides high-quality Crane Industry Hard Tooth ready for international export. By connecting directly with this supplier, buyers can bypass intermediaries, negotiate custom wholesale pricing, and arrange bulk shipments. This product is a key offering within the Products industry, catering to distributors, wholesalers, and importers worldwide.
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Navigating the complexities of global sourcing is easier when you have direct access to the right manufacturers and exporters. When importing Crane Industry Hard Tooth from China, buyers can discuss shipping logistics, packaging requirements, and preferred payment terms directly with Chongqing Yongjin Heavy Machine Whole Set Equipment Co., Ltd.. This seamless communication is powered by EximNext, a premier global B2B marketplace that connects ambitious buyers with global sellers across every major industry.
About Chongqing Yongjin Heavy Machine Whole Set Equipment Co., Ltd. — Supplier in China
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International Shipping & Import Guidelines for Crane Industry Hard Tooth
When importing Crane Industry Hard Tooth from China, buyers should consider shipping terms (FOB, CIF, EXW), customs documentation requirements, and payment security. Contact the supplier to discuss the best logistics options for your destination country.
Frequently Asked Questions About Crane Industry Hard Tooth
How can I get the wholesale price for Crane Industry Hard Tooth Surface Reducer?
Click the "Request Quotation" button to contact Chongqing Yongjin Heavy Machine Whole Set Equipment Co., Ltd. directly. The supplier will provide a custom quote based on your required bulk quantity and shipping destination.
Can I buy Crane Industry Hard Tooth in bulk from China?
Yes, Chongqing Yongjin Heavy Machine Whole Set Equipment Co., Ltd. provides Crane Industry Hard Tooth for bulk export from China. You can negotiate the MOQ, packaging details, and shipping terms directly with the supplier.
What shipping terms are available for this product?
Shipping terms such as FOB, CIF, or EXW can be negotiated directly with Chongqing Yongjin Heavy Machine Whole Set Equipment Co., Ltd.. Contact the supplier to discuss the best logistics options for importing Crane Industry Hard Tooth to your country.
How do I request a sample of Crane Industry Hard Tooth Surface Reducer?
Send a direct message to Chongqing Yongjin Heavy Machine Whole Set Equipment Co., Ltd. through our platform to request a product sample before committing to a large wholesale order.
Is it safe to source products from this supplier?
Chongqing Yongjin Heavy Machine Whole Set Equipment Co., Ltd. is a registered supplier on EximNext. Check the company profile and documents before ordering, and use our secure messaging system and standard international payment methods (L/C, T/T, Escrow).
What specifications should I ask for when importing Crane Industry Hard Tooth?
Request a detailed product data sheet including grade, purity, dimensions, material composition, and applicable industry standards from Chongqing Yongjin Heavy Machine Whole Set Equipment Co., Ltd..
Does Chongqing Yongjin Heavy Machine Whole Set Equipment Co., Ltd. offer custom packaging or private labeling?
Many suppliers on EximNext, including Chongqing Yongjin Heavy Machine Whole Set Equipment Co., Ltd., offer custom packaging and private label options for bulk wholesale orders.
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