CNC Metal Parts For The Petrochemical Industry
The petrochemical industry utilizes a wide variety of CNC (computer numerically controlled) metal parts, requiring them to possess properties such as corrosion resistance, high temperature resistance, and high pressure resistance.
Description
In the petrochemical industry, CNC-machined metal parts are primarily used for the precision manufacturing of key equipment, such as valves, pump bodies, and flanges. Valve components, such as valve cores and valve seats, require high-precision fit to ensure a tight seal for fluid control. Pump impellers and casings are CNC-machined to optimize fluid efficiency and reduce energy consumption. These parts are typically made of corrosion-resistant materials such as stainless steel and alloy steel to withstand high-temperature, high-pressure, and corrosive environments.
Precision CNC machining
CNC manufactured parts
|
DIMENSION |
TOLERANCE |
FLATNESS |
TOLERANCE |
|
0~6 |
±0.05 |
0~30 |
0.05 |
|
>6~30 |
±0.1 |
>30~100 |
0.1 |
|
>30~120 |
±0.15 |
>100~300 |
0.2 |
|
>120~400 |
±0.2 |
>300~1000 |
0.3 |
|
>400~1000 |
±0.3 |
>1000~3000 |
0.4 |
|
>1000~2000 |
±0.5 |
|
|
|
ANGULAR |
|
VERTICALITY |
|
|
(symmetry)0~10 |
±1° |
0~100 |
0.2 |
|
>10~50 |
±30° |
>100~300 |
0.3 |
|
>50~120 |
±20° |
|
SYMMETRY |
|
>120~400 |
±10° |
|
0.5 |
High-speed CNC machining of metal parts
Flanges, connectors, and shaft parts also rely on CNC technology to ensure dimensional accuracy and prevent leakage or mechanical failure. For example, the sealing surfaces of high-pressure flanges must be machined to exacting standards, while moving parts such as compressor crankshafts require both strength and wear resistance. The reliability of these parts directly impacts the safety and efficiency of petrochemical production, placing extremely high demands on machining processes.
Our Services
FAQ
Q1:How to get a quote?
Detailed drawings (PDF/STEP/IGS/DWG...) with material, quantity and surface treatment information.
Q2:Where is your factory?
We are in HeNan, China.
Q3: How soon can I get samples and how much the fee?
Depending on your specific project, it usually takes 10 to 20 days. the fee depends on the product drawing, and the fee will be returned to your bulk order.
Q4:How do you control quality?
(1) Material Inspection - Check material surfaces and approximate dimensions.
(2) First inspection of production - ensure critical dimensions in mass production.
(3) Sampling inspection - check the quality before delivery to the warehouse.
(4) Preshipment inspection - 100% inspection by QC assistant before shipment.
Q5: Will my drawing safe after you get it?
Yes, we can sign the NDA before got your drawing.
Manufacturing Equipmnet
Surface Treatment
Testing equipment
Manufacturing Flow Chart
about Us
From China to the world-we provide comprehensive "CNC machining + foreign trade supply chain" services, specializing in helping overseas buyers establish a stable network of high-quality Chinese suppliers.
Unique Value:
Joint Factory Selection Service: Matching three pre-qualified factories based on customer needs, eliminating price differences caused by middlemen.
Multi-Process Integration: Combining die-casting, stamping, and other processes to reduce overall costs.
On-site QC Team: Foreign quality inspectors are stationed in China to strictly control delivery quality.
We have successfully helped over 200 overseas clients achieve localized procurement, with an annual transaction volume exceeding US$30 million. Your one-stop partner for Chinese manufacturing!
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