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Precision Oil Filter Center Tube - Custom CNC Machined & Zinc Plated

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LabelValue
Materialcustomized
Drawing format2D (PDF/CAD/DWG) and 3D (STEP/IGES/GLB)
Specification
Processing Precision0.01mm
Production Capacity100000/year
Process Usage
Surface FinishCustomized Finishing

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Description
Additional Information

Product Description

thing describe
Design/Size According to customer's drawings or samples
Material

Aluminum: 6061, 6063, 6082, 7075, 5052, A380, etc.

Stainless steel: SS201, SS301, SS303, SS304, (SS304 food grade), SS316, SS316L, SUS430, SS416

Steel: low carbon steel, carbon steel, 4140, 4340, Q235, Q345B, 20#, 45#, etc.

Alloy steel (15Cr, 20Cr, 42CrMo), etc.

Brass: HPb63, HPb62, HPb61, HPb59, H59, H68, H80, H90, etc.

Copper, bronze, copper, etc.

Titanium: TC4 (TiAl6v4, Grade f5)

Plastic: ABS, PC, PE, POM, Delrin, Nylon, Plastic, PP, PEI, Peek, etc.

process CNC machining, turning, milling, stamping, turning, cutting, etc.
Delivery time Samples usually take 3-7 working days, and mass production will be carried out according to the detailed quantity after sample approval.
Surface treatment Transparent anodizing, color anodizing, chemical coating, brushing, passivation, polishing, chrome plating, sandblasting, laser engraving, zinc plating, black oxide, nickel plating, chrome plating, carburizing, heat treatment, painting
Test equipment Coordinate measuring machine (CMM), 2D measuring instrument, projector, altimeter, micrometer, thread gauge, hardness tester, caliper, pin gauge, salt spray tester, concentricity measuring instrument, spectrometer.
Quality Management System

ISO 9001:2015
IATF 16949:2016

ISO 13485:2016

application Auto parts, machinery parts, computer parts, medical parts, home appliance parts, electrical parts, electronic product parts, electronic parts, generator parts, alternator parts, generator parts, stationery, power switches, micro switches, construction, merchandise and A/V equipment.
File Format Solidworks, Pro/Engineer, CAD, PDF, JPG, DXF, IGS
Package Inner plastic bag, outer standard carton, or as per customer's requirements
Shipping Sea freight, air freight, international express (DHL, FedEx, TNT, UPS).
Serve The professional foreign trade team provides enthusiastic and fast response services.
Dimensional inspection report/Raw material certificate/Surface treatment report/Engineering drawing
RoHS report/Salt spray test report/Hardness test report

Engine Oil Filter System Core Precision Component – Professional Machining Analysis

As a precision machining facility specializing in high-end non-standard customization, we understand the critical role every component plays in a complex system. The product showcased here is a core precision component for engine oil filter systems, tasked with guiding oil circulation and supporting the entire filtration structure. Below is a comprehensive, professional analysis of this product from the precision machining perspective, covering its functions, manufacturing processes, technical challenges and targeted solutions.

1. Product Overview & Core Functions

This component is a typical critical part of an engine oil filter, serving as a key element of the engine lubrication system. It must maintain extreme stability and reliability when operating in harsh environments characterized by high temperatures, high pressure and chemically active engine oil, ensuring the normal operation of the lubrication and filtration system.
The product features a refined structural design, mainly consisting of a threaded connection end, a flow rod section with four large openings, and precision sealing grooves. These structural designs work synergistically to control engine oil flow at a rated efficient rate, guarantee stable sealing performance, and maintain the overall structural integrity of the filtration system, laying a solid foundation for the stable operation of the engine.

2. Professional Manufacturing Process

To realize the complex functional structure and high precision requirements of this non-standard component, we adopt a rigorous, layered combination of precision machining processes, ensuring every process meets strict quality standards:

2.1 Precision CNC Turning

We complete the rough and finish machining of the outer diameter, stepped surfaces and sealing grooves in a single clamping setup, with the outer diameter as the benchmark. This one-setup processing mode effectively eliminates cumulative errors caused by repeated clamping, ensuring the overall coaxiality of the component and meeting the high-precision assembly requirements of subsequent procedures.

2.2 Mill-Turn Composite Machining

Leveraging CNC machining equipment equipped with a C-axis function, we precisely mill four longitudinal openings on the cylindrical rod section. This is the core process to ensure the standard oil flow area, controlling the dimensional accuracy and position accuracy of the openings to the micron level, matching the design flow parameters perfectly.

2.3 Internal Bore & Hexagon Shaping

The internal hexagonal drive structure at the top of the component is processed via cold extrusion or slotting technology. This processing method ensures the structural strength and dimensional accuracy of the hexagonal part, enabling high-torque transmission during component installation, avoiding slipping or damage during assembly.

2.4 Surface Zinc Plating Treatment

We apply a high-performance zinc plating process to the component. Beyond presenting a smooth, bright silver appearance, the core purpose of this treatment is to provide excellent corrosion resistance, effectively preventing rust and corrosion during the engine’s full service life, and enhancing the durability and service life of the component.

3. Machining Challenges & Technical Bottlenecks

As a high-precision non-standard engine component, this product faces multiple technical difficulties in the actual production process, requiring professional control and targeted breakthroughs to ensure product qualification rate and performance:

3.1 Deformation Control of Thin-Walled Sections

The rod section is designed with four large openings, which greatly weakens the structural strength of the middle part. During cutting and clamping, the thin-walled area is extremely prone to elastic spring-back or radial deformation, directly affecting the geometric accuracy and assembly fit of the component.

3.2 Burr Removal in Opening Areas

Fine and hard-to-reach internal burrs are easily generated at the intersection of cross-drilled holes and milled openings. If these burrs are not thoroughly removed, they may fall off and enter the engine lubrication circuit during operation, causing serious wear and even catastrophic damage to the engine.

3.3 Geometric Precision of Threads & Sealing Parts

The thickness of the zinc plating layer will directly affect the fitting clearance of threaded parts and sealing grooves. Improper machining allowances will lead to poor assembly, loose sealing or difficult installation, so precise allowance offset control is required in the early machining stage.

4. Targeted Technical Solutions

Aiming at the above technical bottlenecks, we rely on years of precision machining experience and advanced technical reserves, and formulate a full-process optimized control plan to solve the pain points of production and ensure product quality:

4.1 Custom Tooling for Deformation Control

We adopt customized full-length support fixtures or hydraulic expansion mandrels to provide stable internal support for the component when machining the openings. This scheme effectively offsets the cutting force generated during machining, fundamentally suppresses thin-walled deformation, and ensures the dimensional stability and geometric accuracy of the product.

4.2 Automated Multi-Station Deburring

We introduce high-pressure water jet deburring or abrasive flow machining technology, replacing traditional manual deburring with automated equipment. This method can thoroughly remove internal burrs in dead corners, ensuring all opening edges are smooth and clean, and meeting the zero-foreign-matter delivery standard for engine components.

4.3 Closed-Loop Dimensional Precision Control

We establish a strict coating thickness monitoring system, conduct real-time tracking and detection of zinc plating parameters, and accurately correct the machining dimensions of threaded and sealing parts in advance. This closed-loop control ensures that the product can achieve perfect fit and sealing after surface treatment, meeting assembly requirements.

4.4 Strict Cleanliness Management

In strict accordance with the highest cleanliness standards for engine components, we implement multi-stage ultrasonic cleaning and professional impurity removal operations before product packaging. This eliminates dust, oil stains, metal debris and other residues, ensuring the delivered products are clean and pollution-free, avoiding hidden dangers to engine operation.

Conclusion: Through full-process professional management and control – from raw material selection and precision machining to surface treatment and finished product inspection – we ensure that each customized high-precision component can exert optimal performance in the engine system, meeting the high-standard requirements of customers for non-standard precision parts.
Engine Oil Filter System Core Component
Tel: +86 187 5714 8656
Email: zhouli@chinaliqin.com
WhatsApp: +86 187 5714 8656
Website: https://www.cncliq.com/

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longshengmfg-logoNingbo Liqin Industry&Trade Co., Ltd.
  • Rapid engineering feedback within just 2 business days.

  • ISO 9001 and IATF 16949 Certification.

  • Materials including aluminum, stainless steel, steel, and brass available, with surface finish options such as electrophoresis, anodic oxidation, electroplating, and powder coating.

  • Cost-effective mass production with advanced equipment.

  • Custom orders accepted, starting from prototypes.