Custom iron and steel castings with CNC finishing. RMC Foundry combines several casting routes with machining and coordinated secondary services, helping buyers source a finished component rather than an unspecified rough casting.
What the published manufacturing scope means for a buyer.
Qingdao Rinborn Machinery Co., Ltd. trades as RMC Foundry and dates its founding team to 1999. Its published scope spans sand, investment, shell-mold, lost-foam and vacuum casting, together with a machining workshop. The company explicitly describes both its own production and an outsourced supply network. Its Qingdao contact address identifies the business; the production site and process allocation for a particular order belong in the supplier qualification record. [1] [2]
RMC presents sand and lost-wax routes alongside shell, foam and vacuum processes. The useful comparison is a proposed route for the same drawing, alloy and quantity: tooling, casting allowance, finishing and inspection should be included before comparing the delivered part price. [3]
The machining workshop lists milling, turning, drilling, honing and four- and five-axis machining centers. This allows an enquiry to distinguish as-cast surfaces from machined datums, bores and interfaces, with one controlled finished-part drawing. [4]
The company profile identifies outsourced heat and surface treatment, while the service page describes internal and external manufacturing. Buyers can ask for a process-responsibility schedule rather than assuming that every listed treatment takes place in the foundry. [7]
CNFX synthesis of the company’s published information.
Drawing-led components, separated from the equipment they fit.
RMC describes green-sand, resin-coated sand and furan-resin molding, with manual and automatic operations. Typical published products include pump bodies, bearing housings, gearbox housings and brackets. Ductile iron is one of the stated materials; grade, section size and mechanical requirements must travel together in the drawing package. [5]
The lost-wax range uses silica-sol, water-glass or combined shell systems. A representative impeller page specifies investment casting followed by CNC machining and solution treatment. It illustrates a casting-to-finished-part route, not the supply of a complete centrifugal pump. [10]
The machining page covers turning, milling, drilling and honing. For finished components, identify which surfaces remain as cast and which require machining, the inspection datums and the required surface finish. Published machine envelopes are planning references, not a simultaneous part-size and accuracy guarantee. [4]
Shell molding, lost-foam and vacuum casting appear in the main capability range. Forging, die casting, heat treatment and surface treatments also appear in the combined internal-and-outsourced service list. Confirm the proposed producing site and route when these services form part of the order. [7]
Published processes, organized by production stage.
Submit the drawing and alloy designation, annual volume, casting and finished dimensions, machining allowances and acceptance requirements. RMC's enquiry page specifically asks for quantity, tolerance, finish, metal and heat treatment. [2]
The published service starts with pattern or tooling design and process planning. Compare the proposed sand or lost-wax route against the component geometry and recurring quantity, not a catalogue-wide maximum weight. [3]
The quality page describes composition checks before and after pouring and heat-number traceability. Specify which material and heat records must accompany the delivered batch. [8]
Machining and the agreed secondary treatments follow casting. Establish which operations are subcontracted, who releases the finished part, and which dimensional, mechanical or NDT reports are required. [7]
A casting inspection plan needs both the test and its acceptance level.
RMC describes spectrometer and carbon-sulfur analysis, retained specimens and heat identification. Its mechanical inspection list includes hardness, tensile, impact and metallographic testing. Specify alloy standard, heat treatment and required records for the actual part. [8]
The dedicated quality page places magnetic-particle and penetrant testing in house and describes third-party X-ray and ultrasonic vendors. Ask the quotation to identify the test provider, coverage, method and acceptance criteria for the proposed order. [8]
CMM, scanning and dimensional checks are described alongside machining-process records. Critical interfaces should be defined on the approved drawing with a first-article report and repeat-production inspection plan, rather than relying on a generic tolerance class. [8]
The quality page states ISO 9001:2015 certification. Request the current certificate and applicable production-site scope during qualification; batch material, dimensional and special-test records should be specified separately in the purchase requirements. [8]
Published examples describe parts for equipment, not an entire-machine product range.
RMC lists bodies, covers, valve discs and open or closed impellers. The representative stainless impeller gives a concrete example of combining a casting process, machining and heat treatment for a flow component. [10]
Its application list includes gear housings, brackets and engine or transmission covers for trucks, agricultural and construction equipment. Buyers should enquire with the component drawing rather than an enquiry for a complete tractor or construction machine. [9]
The company lists draft-gear housings, wedges, cast wheels and forklift-related parts. Application-specific material and inspection requirements determine the approval package; a listed application alone is not a rail or vehicle approval. [9]
CNFX procurement assessment.
RMC is relevant to a buyer who needs a custom cast component delivered with machining and defined inspection records, particularly where the choice between sand and investment casting is still open. Its combination of foundry work, machining and external finishing calls for a clear route sheet: define the responsible producing sites, final drawing, material condition and acceptance evidence in one enquiry. The website's capability tables differ in weight and tolerance ranges, so a drawing-specific technical proposal is more useful than selecting the largest number shown.
No. RMC explicitly describes internal production plus outsourced manufacturing, heat treatment and surface-treatment capabilities. Ask for the site and responsibility assigned to each operation in your proposal.
Use a drawing-specific confirmation. The overview table, process pages and downloadable sheets show different ranges and process subdivisions; their largest values should not be combined into one guaranteed operating envelope.
Website research · 2026-10-01
Prepared from RMC Foundry’s English website. Capability descriptions and application information are company-published; CNFX’s project-fit assessment is editorial analysis. Company claimed indicates profile management, not quality certification. Source methodology.
Ask about capability, specification boundaries, lead time, or what this manufacturer would need from you to quote.
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