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Our current manufacturing scope covers distal support rings, proximal support rings, distal and proximal crimp rings, pusher stop crimp rings, rolling drain cable crimp rings, and lock ring and post assemblies. Huashang manufactures the metal component according to the approved drawing. Final assembly validation and functional performance requirements remain controlled by the medical-device manufacturer. Available services include precision ring manufacturing, post machining, component cleaning, dimensional inspection, controlled assembly, assembly identification, batch-level traceability and final inspection reporting.
Common material options include 316/L stainless steel and 304/L stainless steel, with other materials available when specified by the customer. Raw-material standards are selected according to the material form and approved specification. Typical forms include round bar, seamless and welded tube and pipe, and plate and sheet. Applicable standards include ASTM A276 or ASTM A479 for stainless steel bar and rod, ASTM A269 for general stainless steel tubing, ASTM A270 for sanitary tubing, and ASTM A240 for stainless steel sheet and strip. The customer drawing and purchase order remain the controlling requirements.
Distal Crimp Ring | Lock Ring and Post Assemblies | Proximal Crimp Ring | Pusher Stop Crimp Ring | Rolling Drain Cable Crimp Ring |
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Depending on the component design, our manufacturing services include precision tube cutting, CNC machining, micro-ring production, deburring and edge finishing, surface polishing, cleaning and degreasing, passivation when specified, component assembly, prototype production, and small-batch and repeat production. Machining tolerances down to 0.005 mm may be achievable for selected dimensions, subject to part geometry, material condition and inspection method. Passivation is performed according to ASTM A967/A967M when required by the approved specification or customer order, with solution, concentration, temperature and processing time recorded.
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Before production begins, engineering and quality teams review the part number, approved drawing and revision, material grade, critical dimensions, surface finish, cleaning requirements and inspection documentation. Incoming raw materials undergo material grade review, supplier lot and mill heat-number verification, material certificate review, chemical composition verification, Positive Material Identification (PMI), dimensional inspection and surface-condition inspection. After setup, the first article is inspected to verify the correct drawing revision, CNC program matching, critical dimension conformance, calibrated equipment and acceptable surface condition before batch production begins.
During production, operators record CNC machine identification, tooling checks, in-process measurements, operation quantities, deburring results and cleaning conditions. Available inspection equipment includes digital calipers, outside micrometers, optical comparators, profile projectors, magnification microscopes and surface-roughness testers. Customer-designated critical dimensions can be inspected 100%. Finished components are inspected for burrs, sharp edges, scratches, surface roughness, cracks, residual oil and foreign-material contamination. Before shipment, the quality department reviews complete batch documentation, and the batch is released only after authorized quality personnel accept all applicable requirements.
Each applicable production batch can be traced through the chain:
Customer Purchase Order → Part Number → Approved Drawing Revision → Production Batch Number → Raw-Material Lot Number → Mill Heat Number → Material Test Certificate → Incoming Inspection Record → Production and Inspection Records → Finished-Goods Lot → Certificate of Conformity → Packaging Label and Shipment Record.
Available documentation may include Material Test Certificate (MTC), EN 10204 3.1 material certificate when applicable, Certificate of Conformity (CoC), PMI report, dimensional inspection report and production batch record. Production, inspection and traceability records are retained for a minimum of five years.
We support medical-device development projects requiring prototype components, design-verification quantities, small production batches, multiple drawing revisions, First Article Inspection and controlled repeat production. Customers can request quantity-based quotations for volumes such as 2,000, 5,000, 10,000 or 20,000 pieces. To request a quote, please send the part drawing, drawing revision, required material, order quantity, critical dimensions, surface and cleaning requirements, inspection requirements and required quality documents. Our engineering and quality teams will review the project and prepare a manufacturing and inspection proposal.
Yes. Applicable batches can be linked to the raw-material lot, mill heat number, MTC, incoming inspection record, production batch and finished-goods label.
Machining tolerances down to 0.005 mm may be achievable for selected dimensions, subject to part geometry, material condition and inspection method.
The standard depends on the raw-material form and customer specification. Typical standards include ASTM A276/A479 for bar, ASTM A269/A270 for tubing and ASTM A240 for sheet or strip.
Yes. We support prototypes, small-batch validation orders and repeat production according to customer drawings and inspection requirements.
