Import Forged Crankshafts — Buy in Bulk from Supplier in China

Shanghai Choikey Machinery Co., Ltd. supplies forged crankshafts manufactured in China for demanding engine applications. The shafts are made from forged alloy steel 42CrMo, a grade renowned for high fatigue resistance. Each unit measures a standard length of 1.5 m, carries a surface roughness of Ra 0.4 µm, and weighs approximately 650 kg. Custom lengths and dimensional adjustments are available on request.

The 42CrMo alloy typically achieves a tensile strength around 900 MPa and a Rockwell C hardness between 45 and 55, which are standard targets for high‑performance crankshafts. Dimensional tolerances of ±0.2 mm on critical journal diameters and a balance tolerance of ±2 % are common industry practices. The shafts are finished to a precision level that supports reliable power transmission in automotive, aerospace and heavy‑machinery engines. Standard packaging involves a wooden crate with anti‑corrosion coating, but alternate packaging can be arranged.

Buyers such as engine manufacturers, OEMs and heavy‑equipment assemblers typically order these crankshafts in bulk to meet production schedules. The supplier offers flexible minimum order quantities and can ship under FOB or CIF terms from ports in China. Payment is usually arranged via L/C or T/T, and the company can provide ISO‑9001 certification upon request. Prospective importers should confirm exact lead times, custom design details and final packaging preferences directly with the supplier.

Shanghai Choikey Machinery Co., Ltd. is located at 201, Zone B, Jue Jin Building, No.986 South Hongmei Rd, Minhang District, Shanghai 200237, China. The company is classified as an imported tier supplier and holds a harbor trust tier within the marketplace. Its response metrics show a response rate of 0 % and an average response time of 0 hours, indicating that communication may require proactive follow‑up. The firm’s profile lists its primary activity as the production and export of forged crankshafts.

The supplier highlights the availability of custom design options and confirms compliance with relevant industry standards, including ISO‑9001 certification. Packaging is described as secure, with options such as wooden crates and anti‑corrosion coating to protect the heavy shafts during transit. Shipping arrangements can be made via FOB or CIF from Chinese ports, and the company can accommodate various incoterm preferences. No additional corporate history or client references are provided in the listing.