About BF Marine Parts & Machinery Imp. & Exp. Co., Ltd. - Marine Engines Supplier in China

Based in China, BF Marine Parts & Machinery Imp. & Exp. Co., Ltd. lists seven active products across marine engine and automotive spare‑part categories. The catalogue includes marine diesel crankshafts, cylinder heads for four‑stroke engines, main engine components such as SXD, CXZ and STX series parts, a connecting‑rod bearing (HS 8483.30) made of tri‑metal, a forged carbon‑steel crankshaft (HS 8483.10) using 42CrMo alloy, and a high‑grade alloy‑steel plunger (HS 8409.91). Each item is classified under the HS‑code families for engine components and bearings, matching the company’s top categories of Marine Engines, Engine Spare Parts, Bearing, Automobile Gears, Shafts & Clutches, and Automobile Spare Parts & Supplies. The product titles reference MAN engine series (e.g., MAN 32/40, L16/24) which are commonly used in commercial vessels and auxiliary power units.

The marine diesel crankshaft MAN 32/40 L16/24 is listed without an HS code but falls within the 8483 chapter for rotating parts of engines. The cylinder head for a four‑stroke engine and the CXZ MAN 8L16/24,9L16/24 crankshaft are similarly positioned in the same HS chapter. The bearing item specifies a tri‑metal construction with a steel back, white metal and lead‑tin overlay, a typical composition for high‑load marine bearings. The plunger part is described as heat‑treated high‑grade alloy steel, a material choice that meets the strength requirements of MAN marine main engines. Overall the catalogue targets manufacturers and service providers that require OEM‑type components for large marine propulsion systems.

Product Range and Specialties of BF Marine Parts & Machinery Imp. & Exp. Co., Ltd.

The current catalogue covers core marine engine components: crankshafts (for MAN 32/40 and 8L/9L series), cylinder heads, main‑engine spare parts such as plungers, and a connecting‑rod bearing. In the marine engine market, crankshafts are usually forged from alloy steels such as 42CrMo or 35CrMo and are heat‑treated to achieve a hardness of 45‑50 HRC, complying with ISO 9001 quality management and API 610 pressure‑vessel standards. Bearings for marine applications are often tri‑metal, combining a steel backing with white‑metal or lead‑tin overlays to provide load‑carrying capacity and wear resistance, and are tested to ISO 281 bearing‑life ratings.

Automobile‑related items in the list, such as gears, shafts, clutches and general spare parts, typically conform to ISO 14120 (safety guards) and ISO 6336 (gear strength). Standard material grades include carburised steel for gears (e.g., 20CrMnTi) and alloy steels for shafts (e.g., 42CrMo). Buyers in the automotive sector often request material certification, surface‑hardness reports, and dimensional inspection reports (CMM). The product mix therefore serves both ship‑yard engine rebuild projects and automotive aftermarket supply chains.

Trade and Export Information - BF Marine Parts & Machinery Imp. & Exp. Co., Ltd.

China ranks among the top exporters of marine engine components, with the majority of shipments destined for Southeast Asian shipyards, European vessel owners, and Middle‑East offshore platforms. The HS‑code 8483 series (rotating parts of engines) and 8409 series (other engine parts) are the primary tariff classifications for the items listed, and they are subject to standard customs documentation such as a commercial invoice, packing list, and certificate of origin. Typical certifications requested by importers include ISO 9001 quality management, ABS class approval for marine parts, and CE marking where applicable.

Logistically, the seven products are commonly packed in wooden crates or steel containers sized for 20‑ft or 40‑ft containers, with moisture‑resistant dunnage for corrosion protection. Incoterms frequently used by Chinese suppliers are FOB Shanghai or CIF destination ports in the buyer’s region. Export controls in China require compliance with the Ministry of Commerce’s licensing for dual‑use marine equipment, and buyers should verify that the shipment complies with IMO and flag‑state regulations for marine propulsion components.

Sourcing from BF Marine Parts & Machinery Imp. & Exp. Co., Ltd. - Buyer Guidance

Prospective buyers should request a mill test report (MTR) for each steel component, confirming chemical composition (e.g., 0.45 % C, 0.90 % Cr for 42CrMo) and hardness values. For the tri‑metal bearing, a load‑capacity test report and ISO 281 life rating should be obtained. Sample dimensions, surface finish (Ra ≤ 0.8 µm for crankshafts), and heat‑treatment certificates are standard documents that help verify compliance before a full order.

Verification of the HS code on the commercial invoice should match the product description to avoid customs delays. Buyers typically confirm packaging dimensions, weight per unit (e.g., bearing 12 kg, plunger 8 kg), and request anti‑corrosion coating certificates for marine exposure. Lead times for forged steel engine parts from Chinese manufacturers range from 4 to 8 weeks after receipt of a confirmed purchase order and approved technical drawings.

What product categories does BF Marine Parts & Machinery list?

The supplier lists marine engine components such as crankshafts, cylinder heads, main‑engine spare parts and plungers, as well as bearings, and automobile‑related parts including gears, shafts and clutches.

Which HS codes are associated with the listed items?

The catalogue includes HS 8483.30 for a connecting‑rod bearing, HS 8483.10 for a forged carbon‑steel crankshaft, and HS 8409.91 for a high‑grade alloy‑steel plunger; other engine parts fall under the broader 8483 chapter for rotating engine parts.

What material specifications are typical for the crankshafts?

Crankshafts are described as forged carbon steel or 42CrMo alloy steel, commonly heat‑treated to a hardness of 45‑50 HRC and supplied with material certificates that meet API 610 and ISO 9001 standards.

What quality documentation should a buyer request?

Buyers should ask for a mill test report, heat‑treatment certificate, dimensional inspection report, and, for bearings, an ISO 281 load‑capacity test report. ISO 9001 quality‑management certification is also customary.

What are the usual packaging and shipping formats?

Items are typically packed in wooden crates or steel pallets suitable for 20‑ft or 40‑ft containers, with anti‑corrosion dunnage. Common Incoterms are FOB Shanghai or CIF to the buyer’s destination port.

What is the typical minimum order quantity and lead time?

Lead times for forged engine components range from 4 to 8 weeks after order confirmation; minimum order quantities are set per item and depend on the part’s weight, with small bearings often ordered in batches of 10‑20 units.

Which certifications are commonly required for marine engine parts from China?

Importers usually require ISO 9001 quality‑management certification, ABS class approval for marine components, and a certificate of origin; additional certifications such as CE marking may be needed for equipment used in Europe.

How can a buyer verify the correct HS code for a product?

The buyer should compare the product description on the commercial invoice with the HS‑code list in the catalogue (e.g., 8483.30 for the bearing) and request a pre‑shipment HS‑code confirmation from the supplier to ensure customs compliance.