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Help CenterPrecision Boring Service With Full Dimensional Report and 18-Month Warranty
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At Henan San Kuang Machinery Technology Co., Ltd., we understand that precision is not just a measurement; it's a commitment to your project's success. Established in 2014 and operating from our expansive 10,000-30,000 square meter facility in Luoyang, we specialize in delivering Precision Boring Services that are backed by uncompromising quality control and an industry-leading 18-month warranty. Our core value lies in providing more than just a machined part; we deliver complete traceability and peace of mind through a detailed Full Dimensional Report for every component we produce. This service is designed for engineers and procurement specialists who cannot afford dimensional variances and need verifiable data to ensure seamless assembly and long-term reliability in their end products.
Our precision boring process is tailored to handle a wide range of materials and complex geometries, ensuring your components meet exact specifications.
Advanced Machining Capabilities: We utilize state-of-the-art CNC boring mills and machining centers equipped with high-precision spindles and rigid tooling systems. This setup allows us to achieve tight tolerances, excellent surface finishes, and true positional accuracy for bores, internal profiles, and facing operations.
Comprehensive Quality Assurance: Every job undergoes a rigorous inspection protocol. The accompanying Full Dimensional Report is a cornerstone of our service, typically including:This document serves as your objective proof of quality, essential for PPAP submissions, internal audits, and supplier validation.
Actual measured dimensions vs. print specifications.
Geometric Dimensioning and Tolerancing (GD&T) validation for true position, concentricity, cylindricity, and perpendicularity.
Surface finish measurements (Ra values).
Material certification traceability (available upon request).
Inspection equipment used (e.g., CMM, bore gauges).
Technical Specifications & Flexibility: Our service is adaptable to your specific needs. Below is an overview of our standard capabilities:
| Capability Parameter | Typical Range / Description |
|---|---|
| Bore Diameter Range | From 5 mm to 500 mm (customizable for larger sizes) |
| Tolerance Capability | Can achieve IT6-IT7 grade tolerances or as per customer drawing |
| Surface Finish (Ra) | 0.4 μm to 3.2 μm, depending on material and process |
| Maximum Part Dimensions | Subject to machine capacity; consult for large components |
| Lead Time | Varies by complexity; prototype and production runs supported |
Benefits for Your Business: Choosing our service translates into tangible advantages for your operations. You gain reduced scrap and rework costs due to first-time-right accuracy. The dimensional report eliminates guesswork and inspection delays at your receiving dock, speeding up production. The extended 18-month warranty on workmanship provides long-term risk mitigation, protecting your investment. Furthermore, our experience serving diverse global markets means we are adept at handling the specific requirements of industries from automotive to industrial machinery.
With an annual export value ranging between US$2.5 Million and US$5 Million, Henan San Kuang has established a robust presence across North America, South America, Eastern Europe, Southeast Asia, and beyond. Our commitment to systematic quality is reflected in our adherence to recognized management standards. We ship reliably through major ports like Shanghai, Qingdao, and Tianjin, ensuring your parts arrive on schedule. When you partner with us, you are not just outsourcing a machining step; you are gaining a reliable technical partner dedicated to precision, documentation, and long-term value. Let us provide the boring accuracy and quality proof your critical components require. Contact us today to discuss your project and receive a detailed quotation.
Frequently Asked Questions (FAQ)
What exactly is included in the "Full Dimensional Report"?
The report is a comprehensive document listing all critical dimensions from your engineering drawing. It shows the nominal (specified) value, the actual measured value, the deviation, and the judgment (pass/fail). It also includes data for geometric tolerances (like true position or cylindricity) and often surface roughness checks, providing a complete quality snapshot of your part.Does the 18-month warranty cover all potential issues?
The warranty specifically covers defects in workmanship related to the boring service we provide. This includes issues like failure to meet the agreed-upon dimensional tolerances, surface finish, or concentricity as verified against the supplied report. It typically does not cover failures due to improper handling after shipment, material defects inherent to the supplied workpiece, or wear under normal operating conditions.What file formats do you need to provide a quote?
We can work from 2D drawings (PDF, DWG, DXF) or 3D models (STEP, IGES, SLDPRT). Providing a detailed drawing with all tolerances, material specifications, and required quantities is the best way to ensure an accurate and prompt quotation.Can you work with customer-supplied material?
Yes, we frequently perform precision boring on customer-supplied blanks or pre-machined parts. In such cases, our dimensional report will focus on the features we machine, providing clear accountability for our work.How do you ensure consistency for large production runs?
We implement statistical process control (SPC) methods for production batches. This involves periodic in-process inspections and first-article inspections to ensure the process remains stable and within tolerance throughout the entire run, guaranteeing part-to-part consistency.What is your typical turnaround time for a sample or prototype?
Turnaround time depends on part complexity and our current schedule. For standard prototype parts, we often aim for a lead time of 1-3 weeks, including inspection and report generation. We provide a firm timeline upon review of your drawings.Do you offer secondary operations besides boring?
While our core service is precision boring, our facility is equipped to handle related operations such as milling, drilling, tapping, and facing to provide a more complete machining solution. Please inquire about your specific needs.How do you handle international shipping and logistics?
We have extensive experience exporting worldwide. We can arrange shipping from major Chinese ports (Shanghai, Qingdao, Tianjin, etc.) and handle all necessary export documentation. Shipping terms (EXW, FOB, CIF, etc.) can be negotiated based on your preference.
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