
Deep Hole Drilling & Large CNC Machining
Custom precision machining for long-hole, heavy-duty, and difficult-alloy components used in nuclear power, petrochemical machinery, aerospace, metallurgy, shipbuilding, and hydropower equipment.

Complex Components. Difficult Materials. Precision Without Compromise.
More About JingzuanJINGZUAN Industrial Machinery is a professional precision machining manufacturer specializing in deep hole drilling, boring, honing, long-shaft turning, and large-scale CNC machining. We provide customized machining solutions for complex components and demanding industrial applications worldwide.
With a 4,000 m² manufacturing facility, machining capabilities of up to 10 meters in length, workpiece handling capacity of up to 25 tons, and precision control down to 0.02-0.04 mm, we are equipped to meet demanding requirements for long, deep-hole, heavy-duty, high-precision, and geometrically complex components.
In addition to conventional metal machining, JINGZUAN has extensive experience in machining difficult-to-machine materials, including nickel alloys, titanium alloys, and high-temperature alloys. These materials often require advanced equipment, specialized tooling, optimized machining processes, and strict dimensional control. Our technical expertise enables us to address challenges related to material machinability, machining efficiency, and precision requirements.
Our machining services support a wide range of industries, including aerospace, energy, nuclear power, petrochemical processing, shipbuilding, metallurgy, hydropower, and heavy machinery. From drawing review and process planning to precision machining, inspection, and documentation, we provide complete customized manufacturing support throughout the entire project.
Whether your project involves complex geometries, deep holes, extra-long components, heavy workpieces, tight tolerances, or difficult-to-machine materials, JINGZUAN is committed to delivering reliable, high-precision machining solutions tailored to your specific requirements.
Machining Services for Critical Components
Featured Parts Built Around Drawings
Jingzuan focuses on custom machining rather than off-the-shelf inventory. Send drawings, material, tolerance, quantity, and inspection requirements for process review.
From Drawings to Inspection Records
A practical process for custom long-hole and heavy machining projects where material, geometry, and inspection requirements need to be confirmed before production.
Drawing Review
Confirm drawings, material, tolerance, bore depth, quantity, and inspection scope.
Process Planning
Select drilling, boring, honing, turning, fixture, and documentation requirements.
Precision Machining
Machine long holes, sleeves, shafts, tube sheets, molds, and custom components.
Inspection & Delivery
Check dimensions and surface requirements, then prepare required inspection records.
4000 sqm Taicang Production Base
The workshop combines CNC deep hole drilling, boring, honing, long turning, and CNC machining equipment for heavy-duty parts, long cylinders, tubes, molds, and critical mechanical components.
Quality & Documentation
ISO 9001:2015 quality management system with dimensional checks, inspection records, and third-party inspection support when confirmed for the project.
Dimensional Inspection
Check key dimensions against confirmed drawings.
Inspection Reports
Prepare records based on agreed inspection scope.
RFQ Support
Send drawings, material, quantity, and target requirements.
Ready to Review a Drawing?
Email dz_2049@126.com or submit the inquiry form with drawings and requirements.







