A clear request for quotation (RFQ) helps a supplier evaluate a custom forged ring without repeated clarification. Drawings are essential, but the most useful inquiry also states the material, product condition, inspection scope, quantity, and delivery requirements.
Send a dimensioned 2D drawing and, when available, a 3D CAD model. Make sure the revision is clear. Identify critical dimensions, geometric tolerances, surface finishes, grooves, holes, chamfers, and any features that affect assembly or sealing.
Include the exact grade and governing standard. Where relevant, state the product form and required heat-treatment condition. Broad terms such as “stainless steel” or “nickel alloy” are not enough to confirm availability, mechanical properties, or price.
State whether you need a forged blank, rough-machined ring, or fully machined component. If dimensions on the drawing are finished dimensions, explain whether the supplier should calculate the forging allowance. The blank route affects material weight, yield, machining time, and total cost.
Call out critical OD, ID, thickness, flatness, runout, concentricity, and surface-finish requirements. Avoid applying tight tolerances to every dimension unless necessary. The supplier should review tolerances against the component size, material, machining route, and inspection method.
Identify required heat treatment, material certificates, mechanical testing, hardness, non-destructive testing, dimensional reports, and third-party inspection. Include the applicable standards and acceptance criteria. Requirements that are omitted from the RFQ can cause price differences or schedule changes later.
State the order quantity, whether repeat orders are expected, required delivery date, destination, packaging, and Incoterms such as EXW or FOB where applicable. Shipping and export packing should be separated from the ex-works manufacturing price if you need to compare costs accurately.
A useful quotation should identify the quoted material, supply condition, machining scope, documentation, price basis, lead time, and exclusions. If alternatives are acceptable, ask for separate pricing for the forging blank and finished machining so you can compare the options.
Send the drawing and completed technical details to request a quotation review from Shanghai Changjin Metal Product Co., Ltd.
We also provide forging blanks and CNC precision machining services for our clients, covering industries such as energy, petrochemicals, steel, engineering machinery, plastics, prevention and control, hydraulics, healthcare, and food. Please feel free to send us drawings for inquiries.
Metalworking Services
CNC Machining
Sheet Metal Fabrication
Metal Welding
Metal Cutting
Metal Bending
Metal Punching
Metal Forging
Metal Sheet Rolling
Tube and Plate Drilling
Our heavy-duty forging presses support open-die forging and deformation of large-section forgings, including discs, shafts, blocks, and custom components. This capability enables us to meet the demanding forming requirements of heavy industrial applications.
Heat treatment is a critical step in achieving the mechanical properties required for heavy-duty forgings. Our process capabilities meet the strength, toughness, and structural stability requirements for forged components used under demanding operating conditions.
We offer machining capabilities for large forged shafts and long cylindrical components, supporting both rough and finish machining. This capacity is suitable for stepped shafts, rotor shafts, rollers, and other heavy-duty forged shaft components.
Our machining facilities are capable of handling large ring-shaped forgings and circular parts that require precise turning, face machining, boring, and contour control. This capability is suitable for industrial ring blanks, heavy-duty circular parts, and machined ring forgings.
We offer machining solutions for heavy-duty cylindrical, hollow, and tubular forgings. This capability supports the machining of sleeves, cylinders, and other thick-walled forged components used in pressure vessels, rotating systems, and general industrial applications.
Quality control is integrated into our production process through the inspection and testing of forged and machined parts. Our capabilities help verify the dimensional accuracy, condition, and quality consistency of industrial forgings prior to delivery.
Finished forgings are properly protected and packaged to minimize the risk of damage during storage and transportation. Our packaging methods ensure the safe domestic delivery and export shipment of machined and high-value forged components.
