1. Core Product Overview & Application

These components are critical structural chassis parts designed for high-precision mobile medical equipment, such as surgical robot bases, mobile C-Arms, and heavy-duty medical workstations.

• Premium Material: Utilizing AISI 1045 Cast Steel, which offers exceptional mechanical strength and fatigue resistance, ensuring the structural integrity of heavy medical devices under both dynamic movement and long-term static loads.

• Functional Design: Serving as the structural hub between the device chassis and the casters, the design features complex geometry, including a critical 30° spatial angle and multiple integrated precision holes for positioning and locking.

• Paired Delivery: We manufacture these parts in strict accordance with the LH (Left Hand) and RH (Right Hand) symmetry requirements to ensure a perfect "drop-in" fit for the equipment chassis.

2. Production & Machining Process

We employ a closed-loop process of "Controlled Casting + 5-Axis Precision Milling":

1. Blank Quality Control: 100% ultrasonic or X-ray inspection of the raw steel castings to ensure they are free of internal porosity or shrinkage, meeting medical-grade structural safety standards.

2. Datum Establishment: Initial precision milling of the two bottom mounting surfaces to establish the primary technological datum for all subsequent spatial angle machining.

3. Multi-Axis Machining: Utilizing high-precision CNC centers to complete the core $\phi 1.020$ positioning holes, square holes, and critical spatial beveled surfaces in a single setup.

4. Threading & Detailing: Precise tapping of 1/4-20 UNC holes followed by meticulous deburring of all edges.

5. Pre-coating Treatment: Post-machining shot blasting and chemical cleaning to ensure the surface roughness meets the 125 RMS MAX requirement, providing an ideal substrate for powder coating adhesion.

3. Technical Challenges & Solutions

Challenge A: Spatial Geometry and Symmetrical Consistency

• The Challenge: The 30° tilt and complex rib structures require perfect mirroring between LH and RH parts, with extremely tight tolerances for spatial positioning.

• The Solution: We utilize customized modular fixtures to process both LH and RH parts in a standardized environment. Real-time tool compensation via laser probes eliminates assembly errors between the paired components.

Challenge B: Management of Material Breakthroughs

• The Challenge: Engineering notes allow for "Material Breakthroughs" in specific areas where machining meets the casting wall.

• The Solution: Our process engineers perform 3D model simulations before programming to balance material removal with structural rigidity, ensuring the aesthetic integrity and safety of the final part.

4. Medical-Grade Surface Treatment: Precision Powder Coating

To meet the stringent hygiene and infection control requirements of hospital environments, the parts are finished with a Grey Powder Coating (per QP2874).

• Durability & Protection: The powder coating layer is thicker and more resilient than traditional paint, offering superior resistance to chemical corrosion from hospital-grade disinfectants and preventing chipping during mobile collisions.

• Precision Masking: For all threaded holes and precision mating surfaces (such as the $\phi 1.020$ bore), we utilize custom high-temperature silicone plugs for 100% masking. This ensures no powder enters critical interfaces, maintaining assembly precision.

• Thickness Management: We strictly monitor the coating thickness to ensure full coverage and color consistency while preventing "over-build" on mounting planes that could compromise mechanical alignment.

5. Quality Assurance Commitment

As your manufacturing partner, we deliver more than just parts; we provide full quality validation:

• Full Traceability: Every batch is delivered with AISI 1045 Material Certification and a comprehensive Dimensional Inspection Report.

• Zero-Defect Delivery: Post-coating 100% thread inspection using Go/No-Go gauges ensures that products are ready for immediate assembly upon arrival.