Custom CNC Machined Aluminum Two-Piece Cavity Plate Assembly
Description
Custom CNC Machined Aluminum Two-Piece Cavity Plate Assembly
Product Overview
The custom CNC machined two-piece cavity plate assembly is a high-precision custom machining component designed for industrial automation pneumatic control and vacuum workholding systems. Distinct from conventional liquid cooling plates with interconnected flow channels, this part adopts a unique symmetric multi-cavity structure with fully isolated, non-interconnected independent chambers. Each sealed cavity operates separately without medium cross-flow or signal interference, delivering stable and reliable independent control performance.
Manufactured from premium 6061-T6 aerospace-grade aluminum alloy and finished with durable black anodization, the two-piece assembly consists of a cavity-milled base plate and a flat sealing cover plate. Strict CNC precision machining and flatness control ensure zero-leak assembly, high structural rigidity, and long-term continuous operation stability, fully meeting the high-standard customization demands of industrial CNC machining services.
CNC Machining Technical Parameters (Standard Specification Table)
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Technical Item
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Standard Specification
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Custom Range
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Base Material
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6061-T6 Aluminum Alloy
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6063, 7075, 5052 Aluminum available
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Machining Process
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3/4/5-Axis Precision CNC Milling
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Precision grinding, drilling, tapping customized
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Dimensional Tolerance
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±0.005mm – ±0.01mm
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Up to ±0.002mm ultra-precision tolerance
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Flatness Tolerance
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≤0.02mm/100mm
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Ultra-flat polishing supportable
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Surface Roughness
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Ra 0.8μm – Ra 1.6μm
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Ra 0.4μm high-precision finish optional
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Surface Treatment
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Black Anodization (10–15μm film thickness)
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Clear anodizing, hard anodizing, sandblasting
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Structural Feature
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Symmetric, fully isolated non-connected cavities
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Custom cavity shape, quantity and layout
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Assembly Performance
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100% Leak-proof sealing after assembly
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Support O-ring groove customization
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Production Scale
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Prototype & Small Batch
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Mass volume production supported
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Material Performance Analysis
We adopt 6061-T6 heat-treated aluminum alloy as the standard material for two-piece cavity plate assemblies, which is the most balanced material for precision CNC cavity machining and industrial sealing scenarios, with comprehensive advantages unmatched by ordinary aluminum:
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High Structural Stability: T6 heat treatment enhances tensile strength and hardness, effectively avoiding cavity deformation and surface warping after high-precision milling and long-term assembly pressure.
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Excellent Machinability: Fine and uniform metal texture ensures smooth cavity inner wall cutting, no burrs or tool marks, perfectly adapting to complex symmetric cavity precision forming.
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Superior Sealing Adaptability: Stable material shrinkage rate and ultra-flat processing performance ensure tight fitting between two plates, supporting long-term zero-leak operation.
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Corrosion & Wear Resistance: Cooperated with black anodized surface treatment, it resists oxidation, oil pollution and industrial environmental erosion, extending service life of pneumatic and vacuum equipment.
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Lightweight Advantage: Low density reduces overall equipment load, suitable for automated mobile and precision operating equipment.
Precision Tolerance Capability
As a professional CNC machining service provider, we support ultra-precision customized tolerance control for cavity plates, focusing on core indicators that determine sealing and operating stability:
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Dimensional Tolerance: Stable control within ±0.005mm for core cavity and hole positions, ensuring consistent assembly accuracy of each batch of products.
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Flatness Control: Adopt finish milling and stress relief process to control flatness within 0.02mm per 100mm, eliminating assembly gaps and air leakage risks.
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Positioning Tolerance: Mounting hole position tolerance ±0.01mm, ensuring uniform compression of the two-piece assembly and balanced sealing pressure of each independent cavity.
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Surface Tolerance: High-precision surface finishing ensures smooth cavity walls and fitting surfaces, reducing medium resistance and improving sealing reliability.
Key Manufacturing Difficulties & Solutions
The two-piece isolated symmetric cavity plate belongs to high-difficulty custom CNC machining parts. The core manufacturing challenges and our professional solutions are as follows:
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Challenge 1: Cavity Symmetry & Consistency Error Complex symmetric multi-cavity structure is prone to dimensional deviation and asymmetric cutting. Solution: Adopt 5-axis linkage synchronous machining + unified coordinate positioning to ensure 100% symmetric cavity size and consistent depth.
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Challenge 2: Structural Deformation After Cavity Milling Large-area hollow milling leads to uneven material stress and easy warping deformation. Solution: Secondary stress relief treatment + layered cutting process to eliminate internal stress and ensure flatness stability.
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Challenge 3: Zero-Leak Sealing Accuracy Micro gaps between upper and lower plates cause air/vacuum leakage.Solution: Precision finish milling for fitting surface, strict flatness inspection, and matched assembly tolerance calibration.
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Challenge 4: Burr & Residue in Isolated Cavities Independent closed cavities are difficult to deburr manually. Solution: Intelligent CNC precision deburring + ultrasonic cleaning to ensure clean and smooth inner cavity without residue.
Industry Application Scenarios
Benefiting from independent isolated cavity design and high-precision sealed assembly performance, this custom CNC cavity plate is widely used in industrial scenarios requiring multi-channel independent control, no cross-interference and high sealing stability:
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Industrial Automation Pneumatic Systems: Used as pneumatic manifold plates for automated production lines, robots and sorting equipment, realizing multi-group independent air circuit distribution and separate control.
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CNC Vacuum Workholding Fixtures: Served as partitioned vacuum adsorption plates for workpiece positioning and fixing, supporting independent vacuum control of different areas to improve processing flexibility.
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Precision Testing Equipment: Custom sealed cavity components for electronic testing and industrial detection equipment, providing stable independent air pressure/vacuum environment.
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Low-Pressure Fluid Independent Control Equipment: Suitable for industrial control systems requiring multi-channel independent fluid transmission, avoiding cross-contamination and signal interference.
FAQ
Q1: Is this cavity plate a liquid cooling cold plate? A1: No. Different from liquid cold plates with interconnected circulating flow channels, this product adopts fully isolated non-connected cavities. Each chamber works independently without circulating flow, so it is not used for liquid heat dissipation and is mainly applied for pneumatic distribution and vacuum adsorption.
Q2: What is the advantage of two-piece assembly structure? A2: The split structure of cavity base plate + flat cover plate realizes full sealing of each independent cavity. It features higher sealing accuracy, easier processing and cleaning, and better pressure resistance compared with integral grooved plates, effectively avoiding medium leakage.
Q3: Can you customize cavity quantity, shape and size? A3: Yes. We provide full-custom CNC machining services. According to your drawings, 3D files or technical requirements, we can customize any cavity layout, depth, size, hole position distribution and overall dimensions to match your equipment parameters.
Q4: What tolerance level can you guarantee for mass production? A4: Our stable standard tolerance is ±0.005mm~±0.01mm, and ultra-precision tolerance up to ±0.002mm is available for customized orders. All products are inspected by professional testing equipment to ensure batch consistency.
Q5: What surface treatment options are available? A5: Standard finish is black anodization. We also support clear anodization, hard anodization, sandblasting anodization and other treatments to improve corrosion resistance, wear resistance and appearance quality.
Q6: What is your production capacity and delivery cycle? A6: We support prototype trial production, small-batch customization and large-scale mass production. The delivery cycle is determined by product complexity and order quantity, with fast turnaround for urgent orders.
Q7: Why choose 6061-T6 aluminum for cavity plate? A7: 6061-T6 aluminum balances machinability, structural strength and stability perfectly. It avoids deformation during precision cavity milling, ensures flatness and sealing performance, and is the most cost-effective and reliable material for industrial pneumatic and vacuum cavity components.
Additional information
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