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stainless steel flange base

Stainless Steel Precision Flange Cavity Base

This precision circular flange cavity base is specially designed for servo motors and rotary modules. Integrally CNC precision milled from solid stainless steel, with integrated processing of internal special-shaped cavities, positioning stops and mounting holes. It realizes high-precision coaxial positioning and rigid fixing of motors, rotary shafts and transmission components, serving as a core non-standard precision structural part for rotary motion systems.

Quick Info:
  • Processing Equipment: 4-axis / 5-axis CNC Machining Center, CNC Lathe + Machining Center Composite Processing
  • Coaxiality Accuracy: ≤0.005mm
  • Dimensional Tolerance: ±0.01mm
  • Cavity Profile Accuracy: ±0.008mm
  • Surface Roughness: Ra 0.4 ~ Ra 1.6
  • Material: 304/316 Stainless Steel (7075 Aviation Aluminum / 45# Steel optional)
  • Production Capabilities: Prototyping, Low-volume Customization, Mass-volume Production
  • Structure Form: Circular flange, central integrated special-shaped cavity, evenly distributed mounting holes, precision locating stops
  • Mounting Form: Countersunk fixing holes, central positioning steps, shaft system coaxial locating stops
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Low-volume production places higher demands on consistency and delivery efficiency. Backed by high-precision equipment and a stable production system, KT maintains reliable output even in small batches—ensuring each part meets consistent dimensional accuracy and quality standards. By minimizing batch variation and uncertainty, we help reduce trial risks and keep projects moving forward efficiently.

When handling high-mix, low-volume demands, KT remains responsive while maintaining delivery pace, without compromising quality or lead time.

Detailed Description

This precision circular flange cavity base is a core mounting and fixing part for servo motors, rotary modules, reduction mechanisms and precision rotary platforms. Integrally turn-mill formed from solid bar stock, with flat end face, integrally milled special-shaped cavities, positioning steps and precision locating stops. The evenly distributed countersunk mounting holes on the outer circle perfectly match the shapes of motor output shafts, rotary spindles and reduction mechanisms, enabling high-precision coaxial centering installation, greatly reducing vibration and runout during rotation, and ensuring smooth operation and transmission accuracy under high-speed conditions. High rigidity and fatigue resistance, with high-precision end face flatness and perpendicularity, it can be directly mounted on equipment frames, slides and module bases.

Manufacturing Process

  1. CNC lathe turning for outer diameter and end face forming, ensuring coaxiality and flatness
  2. 5-axis linkage CNC precision milling for integrated forming of central special-shaped cavities and positioning steps
  3. CNC precision drilling & milling for evenly distributed countersunk mounting holes and central locating pin holes
  4. Full-range precision chamfering, deburring and mirror polishing of inner cavity walls, burr-free and tool mark-free
  5. Optional natural passivation, electropolishing and blackening anti-corrosion wear-resistant surface treatment

Overall process: Turn-Mill Composite + 5-axis CNC Precision Milling Machining, precision rotary flange structural part processing, focusing on high-coaxiality and high-precision integrated forming of special-shaped inner cavities.

Product Advantages

  1. Stainless steel material, corrosion-resistant, wear-resistant and high-strength, suitable for humid, acidic and high-pressure industrial environments
  2. Integrated flange + cavity structure, no splicing or loosening, high overall rigidity and strong installation stability
  3. High-coaxiality locating stops and cavities, high centering accuracy, greatly reducing vibration and noise of rotating equipment
  4. Stable dimensional tolerance control, excellent batch consistency, suitable for long-term high-frequency continuous operation
  5. Optional mirror polishing/electropolishing treatment, high surface finish and low friction resistance
  6. Full non-standard customization supported, cavity shape, flange size and hole layout can be modified on demand

Detailed Parameter Table

Parameter ItemTechnical Specification
Product NamePrecision Circular Flange Cavity Base / Transmission Positioning Structural Parts
Main Material304/316 Stainless Steel (7075 Aviation Aluminum / 45# Carbon Steel optional)
Manufacturing ProcessTurn-Mill Composite + 5-axis CNC Precision Milling Machining
Coaxiality Accuracy≤0.005mm
Dimensional Tolerance±0.01mm
Cavity Profile Accuracy±0.008mm
Surface RoughnessRa 1.6 (As-machined) / Ra 0.8 (After polishing) / Ra 0.4 (Mirror polished)
Structure FormCircular flange + central integrated special-shaped cavity + evenly distributed mounting holes
Surface TreatmentStainless steel natural passivation, electropolishing; Carbon steel blackening / galvanizing
Production CapabilitiesPrototyping, Low-volume Customization, Mass-volume Production
Working ConditionsPrecision transmission positioning, high-speed rotating equipment installation, high-pressure industrial environment

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