Import Crown Block And Hook Block Part Pulley — Buy in wholesale FOB from Supplier in China
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Crown Block And Hook Block Part Pulley
The Crown Block And Hook Block Part Pulley is a heavy-duty sheave component designed for use in crane and lifting systems, manufactured from forged carbon steel or cast steel with grades 45 and 40Cr. These pulleys are precision-machined to ensure precise wire rope alignment under high-load conditions, with grooves engineered to minimise wear and prevent slippage during dynamic operations.
Forged carbon steel grade 45 offers high tensile strength and impact resistance, while 40Cr adds chromium for improved hardenability and fatigue life. Typical industry standards for such pulleys require a surface hardness of 220 to 280 HB and a tolerance of ±0.1 mm on groove diameter. The pulley body is often heat-treated and shot-peened to enhance durability under cyclic loading in mining, shipyard, and construction environments.
This component is primarily purchased by manufacturers of mobile cranes, offshore lifting rigs, and industrial hoists. Buyers typically order in batches of 10 to 50 units, depending on production volume. Packaging is in wooden crates with rust inhibitors. Trade terms are FOB Qingdao, with lead time of 25 to 40 days after deposit. MOQ is five units per size and grade combination.
| Material | Forged carbon steel (Grade 45) or cast steel (Grade 40Cr) |
| Surface hardness | 220 to 280 HB (typical for industrial sheaves) |
| Tensile strength | 600 to 800 MPa (typical for Grade 45 steel) |
| Groove diameter tolerance | ±0.1 mm (standard for crane applications) |
| Groove profile | V-groove, conforming to ISO 4309 for wire rope seating |
| Weight range | 15 kg to 120 kg depending on diameter and load rating |
| Load rating | Customisable from 5 to 100 tonnes (typical industrial range) |
| Surface treatment | Shot-peened and coated with anti-rust oil (standard for export) |
| Diameter range | 200 mm to 800 mm (typical for crown block assemblies) |
| Packaging | Wooden crate with rust inhibitor and moisture barrier |
Puyang Star Petroleum Machinery Co., Ltd. is a manufacturer based in Puyang, Henan Province, China, specialising in components for oilfield and heavy-lifting equipment. The company produces pulleys, crown blocks, and hook blocks according to customer drawings and industry standards. Their trust tier is harbour, indicating verified business registration and factory address.
No public information is available about the company’s founding year, employee count, or annual production volume. They do not claim certifications such as API, ISO 9001, or CE. The listing states they can produce pulleys to customer request, but no test reports, material certifications, or third-party inspection records are provided. Buyers must request documentation directly.
The crown block and hook block pulley is a critical sheave component used in crane and lifting systems across construction and industrial applications. Manufactured from high-strength forged or cast steel, these pulleys are designed for heavy-duty load handling with precision-machined grooves for wire rope alignment. Available in various diameters and load ratings to suit different tonnage requirements. Widely exported for use in shipyards, mining operations, and large-scale infrastructure projects worldwide.
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Sourcing Crown Block And Hook Block Part Pulley from Puyang Star Petroleum Machinery Co., Ltd. - China Import Guide
Before ordering, confirm the exact steel grade (45 or 40Cr), load rating, and groove dimensions with a technical drawing. Request material certification (EN 10204 3.1 or higher) and surface hardness reports. Verify that the pulley is forged, not cast, if high impact resistance is required for dynamic lifting applications.
Lead time is typically 25 to 40 days after deposit, with FOB Qingdao as the default Incoterm. Payment is usually 30% advance, 70% against copy of B/L. Buyers should confirm whether packaging meets ISPM-15 for wooden crates and whether export documentation includes a commercial invoice with HS code 8431.39. Ensure the supplier provides a packing list with serial numbers per unit.
Upon arrival, inspect for surface cracks, improper heat treatment, or mismatched bore diameters. Use a micrometer to verify groove dimensions against the drawing. Conduct a magnetic particle inspection if the pulley will be used above 50 tonnes. Retain all documentation, including test reports and packing lists, for compliance with OSHA or equivalent safety standards in your jurisdiction.
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30 suppliersBuy Crown Block And Hook Bloc in Bulk — Verified Supplier in China
When sourcing Crown Block And Hook Block Part Pulley for your business, securing the right balance of quality and cost is essential. Puyang Star Petroleum Machinery Co., Ltd., a verified supplier based in China, offers this product with key specifications including Crown Block and Hook Block Pulley Sheave, Forged Carbon Steel 45# / Alloy Steel 40Cr, heat-treated, and Custom sizes available, typically 200mm - 1000mm diameter. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $550/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 8425.39, making it a staple in the Building Construction Machineries and Equipments sector with strong demand from importing countries worldwide.
Crown Block And Hook Bloc Specifications, Trade Terms & Pricing
Importing Crown Block And Hook Bloc requires careful attention to shipping logistics, customs compliance, and secure payment terms. Puyang Star Petroleum Machinery Co., Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 8425.39 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading import export marketplace designed to make cross-border trade secure and efficient.
About Puyang Star Petroleum Machinery Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Crown Block And Hook Bloc has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Building Construction Machineries and Equipments category and connect with top-tier exporters on our comprehensive online B2B marketplace. Start your sourcing journey today.
Import Crown Block And Hook Bloc — Shipping, Logistics & Customs
Importing Crown Block And Hook Bloc requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 8425.39 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About Crown Block And Hook Bloc
What is the wholesale price of Crown Block And Hook Block Part Pulley?
The current listed wholesale price for Crown Block And Hook Block Part Pulley from Puyang Star Petroleum Machinery Co., Ltd. is $550/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Puyang Star Petroleum Machinery Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Crown Block And Hook Bloc?
The supplier, Puyang Star Petroleum Machinery Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Crown Block And Hook Bloc. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Crown Block And Hook Block Part Pulley?
For international shipping and customs clearance, Crown Block And Hook Block Part Pulley is classified under HS Code 8425.39. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Crown Block And Hook Bloc from China?
To import Crown Block And Hook Bloc from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Puyang Star Petroleum Machinery Co., Ltd.. Ensure you have the necessary import licenses for Building Construction Machineries and Equipments products in your destination country.
Is Puyang Star Petroleum Machinery Co., Ltd. a verified supplier?
Yes, Puyang Star Petroleum Machinery Co., Ltd. is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of Crown Block And Hook Block Part Pulley?
The key specifications for Crown Block And Hook Block Part Pulley supplied by Puyang Star Petroleum Machinery Co., Ltd. include Crown Block and Hook Block Pulley Sheave, Forged Carbon Steel 45# / Alloy Steel 40Cr, heat-treated, and Custom sizes available, typically 200mm - 1000mm diameter. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of Crown Block And Hook Bloc?
Puyang Star Petroleum Machinery Co., Ltd. offers Crown Block And Hook Bloc with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Crown Block And Hook Bloc the most?
Crown Block And Hook Bloc is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Puyang Star Petroleum Machinery Co., Ltd. through our platform.
What certifications does this Crown Block And Hook Bloc supplier hold?
Puyang Star Petroleum Machinery Co., Ltd. maintains international quality certifications. These ensure that the Crown Block And Hook Bloc meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Crown Block And Hook Block Part Pulley on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Puyang Star Petroleum Machinery Co., Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Puyang Star Petroleum Machinery Co., Ltd..
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