Oil & Gas Parts Manufacturer & CNC Machining Services
JuPai is a professional CNC machining manufacturer specializing in high-precision metal and plastic parts, with an in-house factory established in 2014. Backed by over 150 advanced machines—including 5-axis machining centers such as DMG, Mazak, and Matsuura—and a strong engineering team, we deliver one-stop solutions from prototyping to mass production across milling, turning, sheet metal fabrication, and 3D printing. Certified to ISO 9001, ISO 13485, IATF 16949, and GJB9001C, JuPai ensures strict quality control, tight tolerances, and reliable performance. Our core capabilities include CNC machining, precision machining, large part machining, heat treatment, surface finishing, and full inspection. Our oil & gas parts are widely used in exploration, offshore platforms, and petrochemical systems. To date, we have produced over 100,000 unique parts, served 300+ companies, and exported to 30+ countries, delivering cost-effective, high-performance machining solutions worldwide.
Our Customers
JuPai Manufacturing has delivered reliable experience to over 300 customers by producing more than 100,000 oil and gas parts.
Our Capabilities and Services
CNC Machining
Our advanced CNC machining systems support multi-axis milling and turning, enabling the production of highly complex oilfield components with repeatable accuracy.
- 3-axis, 4-axis, and 5-axis CNC machining
- CNC turning up to large diameters
- Materials: stainless steel, duplex, inconel, alloy steels, duplex & super duplex stainless steel, hastelloy, titanium, aluminum, carbon steel, brass, copper
Precision Machining
Precision machining is critical for sealing performance, pressure integrity, and operational safety in oil and gas equipment.
- Ultra-tight tolerance control
- High-precision tolerances down to ±0.002 mm
- Surface roughness optimization (Ra ≤ 0.8 μm achievable)
- Dimensional stability under thermal and pressure loads
Large Part Machining
We are equipped to handle large and heavy components machining required in oilfield infrastructure.
- Machining capacity for oversized parts (customizable up to several meters)
- Large part machining up to 3 meters
- Heavy-duty CNC horizontal boring mills
- Stable fixturing for deformation control
- On-site handling and logistics coordination
Surface Finishing
Surface finishing directly impacts corrosion resistance, fatigue life, and sealing reliability.
- Anti-corrosion coatings (e.g., nickel plating, phosphating)
- Shot blasting and passivation
- Precision grinding and polishing
- Surface treatments for harsh environments (H₂S, saltwater exposure)
Quality Assurance & Inspection
Quality is embedded in every stage of production:
- First Article Inspection (FAI)
- In-process inspection and statistical process control (SPC)
- Coordinate Measuring Machine (CMM) verification
- Non-destructive testing (NDT) options available
Rapid Prototyping
We provide fast and flexible rapid prototyping services to accelerate product development and validation.
- CNC prototyping for oil & gas parts and their functional testing
- 3D printing for complex geometries
- Fast turnaround (short lead times)
- Design validation and iteration support
- Material options for real-world performance testing
Our Oil and Gas Parts
Flange Bushing for Oil & Gas
Flange bushings for oil and gas equipment. Custom CNC-machined from API-grade alloys and CRAs, compliant with API Spec 6A, API 16C, and NACE MR0175/ISO 15156
Spherical Bushings
Premium custom spherical bushings and plain bearings for oil & gas equipment. ISO 12240-compliant, maintenance-free options for subsea and corrosive environments.
Drill Guide Bushing
Premium CNC machined drill guide bushing in multiple materials, standard & custom sizes, compliant with ASME DIN standards. High precision, wear-resistant, tight tolerance for oil
Shaft bushing
Shaft bushings engineered for extreme durability, precision, and long service life—your solution for oscillating, high-impact, and harsh environments.
Sleeve Bushings
Premium CNC machined sleeve bushings for oil & gas downhole, wellhead and hydraulic systems. API compliant, sour service alloys, 5-axis precision custom manufacturing, fast prototyping
Tricone Drill Bit
Tricone drill bits with tungsten carbide inserts (TCI), sealed bearings, and CNC precision manufacturing for soft to hard formations in oil & gas drilling.
Tungsten Carbide Drill Bits
Tungsten carbide drill bits engineered for extreme downhole environments. Material architecture, HIP manufacturing, and performance validation for HTHP oil & gas directional drilling.
PDC Drill Bit
Premium PDC drill bits engineered for extreme abrasion resistance and sustained rate of penetration in hard rock formations. Matrix and steel body options with optimized
Articles for Oil & Gas Field
Wellhead Precision Machining
Wellhead precision machining involves advanced CNC manufacturing for oil and gas wellhead assemblies and Christmas tree equipment, complying with API 6A standards, PSL levels, and
Bushing for Oil & Gas
Durable bushings for the oil & gas industry, engineered for precision, corrosion resistance, and high-load performance—reliable solutions to keep your operations running smoothly.
Bronze bushing vs Steel bushing vs Stainless bushing
Complete guide to selecting bushing materials: bronze, hardened steel, and stainless steel. Compare properties, PV limits, corrosion resistance, applications, failure modes and decision framework.
Carbide Drill Bits vs Traditional Drill Bits in Oil & Gas
Carbide Drill Bits vs Traditional Drill Bits in Oil & Gas: Technical comparison, performance analysis, formation-specific applications, and economic evaluation.
Drill Bits in Oil & Gas
Comprehensive analysis of oil & gas drill bits: roller cone (tricone), PDC fixed cutter, diamond bits, materials, engineering specs, applications and economic selection.
Drill Collar Engineering: Bottom-Hole Assembly (BHA) Optimization
Field perspective on drill collar engineering and BHA optimization: physics of compression, common engineering misconceptions, practical specification selection framework for drilling operations.
Why Not All Valve Plugs Are Created Equal in Oil & Gas Infrastructure
Learn the critical differences between rotary plug valves and pipeline isolation plugs in oil and gas infrastructure, including engineering principles, failure modes, and specification best
Carbon Steel vs. Aluminum vs. Stainless Steel in Manifold Blocks
Carbon Steel, Aluminum or Stainless Steel – which material is best for your manifold blocks? Complete comparison of pressure rating, weight, durability & cost to
