Product & Service Overview
 

We manufacture high-tolerance mechanical brackets and modular structural assemblies designed for industrial robot arms and advanced multi-fingered dexterous hands. Built for systems integrators and automation OEMs, our components provide rigid, lightweight physical interfaces between robotic wrists, end-effectors, and payload tools. We bridge the gap between initial CAD prototypes and scalable industrial production, ensuring strict dimensional compliance and mechanical reliability under high-acceleration dynamic loads.

 

 
  • Robot Arm Plastic Cover
    We specialize in high-precision custom plastic structural parts for robot arms, joints, and automation equipment. Whether you need industrial robot joint covers, collaborative robot housings, or
  • Robot Joint Flange Output Plate
    Robot Joint Output Flange is a precision CNC machined component designed for harmonic reducer assemblies in humanoid and robotic joint systems. The flange connects the reducer output to the joint
  • ABS Robot Head Housing
    ABS Robot Head Housing is a custom CNC machined plastic enclosure designed for robotic head assemblies and outer-shell applications. Made from high-quality ABS material, this housing combines
  • Actuator Housing
    This Actuator Housing is a precision-machined enclosure developed for humanoid robot rotary joint modules. It integrates the mechanical structure required to house a motor, bearings, harmonic
  • Robot Arm Bracket
    This Robot Arm Bracket is a precision CNC machined structural component designed for robotic arms, actuator assemblies, and industrial automation systems. The bracket features machined mounting
  • Humanoid Robot Joint Shell
    A Robot Actuator Joint Housing is a critical structural component used to protect and support the actuator, motor, gearbox, bearings, and other internal mechanisms of a robotic joint. It provides
  • Robot Drive Motors
    Our CNC Machined Aluminum Motor Housing is designed for high-performance motors, robotic actuators, servo systems, and precision electromechanical equipment. Manufactured from high-quality aluminum
  • Robot Leg Joint Motor
    Robot Leg Joint Motor Components | Custom CNC Machined Aluminum Parts for Humanoid and Legged RobotsAs humanoid robots, bipedal robots, and quadruped robots move from research labs toward real-world
  • Robot Dexterous Hand
    With the rapid development of humanoid robots and intelligent automation, dexterous robotic hands require highly precise, lightweight, and durable mechanical components to achieve flexible movement
  • Robot Hip Joint
    Precision CNC Machined Hip Joint Components for Humanoid RobotsThe hip joint is one of the most critical load-bearing components in humanoid robots, connecting the torso and lower limbs to achieve
  • Humanoid Robot Structural Parts
    Developing humanoid robots requires more than just machining a metal part. The structural components must be lightweight enough for efficient movement, strong enough to handle repeated motion, and
  • Robot Arm Link
    Jingcheng provides custom CNC machined Robot Arm Links for industrial robots, collaborative robots, and humanoid robotic systems. With high precision CNC machining capabilities, advanced surface
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Materials & Technical Specifications

 

Material selection directly dictates payload efficiency and vibration dampening in robotic applications. We machine and finish components using certified engineering metals and high-performance polymers:

Aluminum Alloys

AL 6061-T6 (general structural balance), AL 7075-T6 (high strength-to-weight ratio for high-speed robot arms).

Stainless Steel

304 / 316L (corrosion-resistant interfaces for food-grade and cleanroom automation).

Titanium

Grade 5 / Ti-6Al-4V (extreme strength requirements with minimal mass for dexterous hand chassis).

Engineering Plastics

Carbon-Fiber-Reinforced PEEK and Delrin (POM-C) for electrical insulation and reduced end-of-arm tooling (EOAT) weight.

Machining Tolerances

+/-0.01 mm standard; +/-0.005 mm precision tolerance on critical bearing and mating surfaces.

Interface Standards

ISO 9409-1 robot flange compliance, custom bolt circles, and integrated pneumatic/electrical feed-through channels.

 

Advanced Manufacturing Process

Our production workflow is optimized for complex geometries, tight positional tolerances, and thin-walled structural components common in robotics:

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Simultaneous 5-Axis CNC Milling

Produces complex bracket contours, pocketing, and internal cable routing channels in a single setup to eliminate re-fixturing errors.

 
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Wire EDM

Precision cutting for internal splines, gear segments, and mating slots on dexterous hand fingers where conventional milling cannot achieve sharp internal radii.

 
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Controlled Surface Treatments

Type III Hardcoat Anodizing (Mil-A-8625) for extreme wear resistance, electroless nickel plating, and chemical passivation to prevent galling on mating joints.

 
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Stress Relief & Finishing

Thermal stress relief cycles and vibratory finishing applied prior to final coating to eliminate residual machining stresses and prevent post-machining warpage.

 

 

Key Performance Capabilities
 
 
 

Optimized Payload-to-Weight Ratio

Topological optimization and pocketing reduce mass at the robot wrist, minimizing joint torque overload and servo motor wear.

 
 

Vibration Dampening & Rigidity

Structural stiffness design maintains position repeatability under rapid stop-and-start cycles (>= 5G acceleration profiles).

 
 

Integrated Routing Channels

Internal bores and milled channels accommodate sensor wiring, pneumatic tubing, and data cables directly through the bracket interior, preventing snagging during multi-axis articulation.

 
 

Modular Dexterous Interfaces

Precision pin-alignment holes and dowel pin provisions ensure repeatable positioning of multi-finger subassemblies during maintenance or replacement.

 

 

 
 
Typical Applications
01.

Collaborative & Industrial Robot End-Effectors

Custom flange adapters and mounting brackets for multi-axis arms paired with vacuum grippers or electric parallel jaws.

02.

Multi-Fingered Robotic Hands

Structural palm chassis, phalanges, and knuckle brackets for research and industrial dexterous manipulation platforms.

03.

Automated Assembly Cells

High-speed pick-and-place tooling fixtures requiring strict perpendicularity and zero angular deflection.

04.

Cleanroom & Laboratory Automation

Chemically resistant stainless steel brackets for pharmaceutical sorting and sample handling robotics.

 

Agile Prototyping & Custom Production

 

We operate an agile manufacturing cell dedicated to low-volume custom iterations and rapid scaling:

 

24-Hour DFM Engineering Review: Comprehensive evaluation of customer STEP/IGES files focusing on manufacturability, wall thicknesses, and potential stress concentration points.

 

Rapid Turnaround: 5 to 10 business days for standard aluminum and plastic CNC prototypes.

 

Low-to-Medium Volume Scaling: Seamless transition from single-unit prototype testing to batch production runs of 50 to 5,000 units without tooling modifications.

 

Custom Modification: Tailored bolt patterns, lightening pockets, and sensor mounting provisions adapted to specific mechanical integration needs.

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Manufacturing & Quality Control

Dimensional integrity and material traceability are verified prior to shipment through documented inspection protocols:

Metrology Equipment

CMM (Coordinate Measuring Machine) and Keyence optical image dimension measurement systems.

Verification Scope

100% critical dimension checks on first-article inspection (FAI) reports; CMM batch sampling reports included with shipments.

Material Traceability

Mill Test Certificates (MTC) supplied for raw metals confirming chemical composition and mechanical properties per international standards.

Coating Verification

Eddy current testing for anodizing thickness verification (>= 50 micrometers for hardcoat).

 

Production Support & Logistics

 

 

Engineering Collaboration

Direct communication channels with our manufacturing engineers to optimize wall thicknesses, radii, and fastener selections before cutting metal.

 

Protective Logistics

Anti-static, custom-molded foam packaging protecting precision-machined mating faces and threaded inserts during international freight.

 

Documentation Package

Comprehensive export documentation, Material Safety Data Sheets, Certificate of Conformance (CoC), and dimensional inspection sheets provided with every order.

 

 

 

Frequently Asked Questions

 

Q: What file formats do you accept for custom robot bracket machining, and do you perform DFM reviews?

A: We accept STEP, IGES, SolidWorks (.sldprt), and Parasolid formats alongside 2D PDF drawings for tolerance callouts and thread specifications. Every submitted file undergoes a complimentary Design for Manufacturability (DFM) review by our mechanical engineering team to identify thin walls, unreachable tool paths, or tolerance stacks before production begins.

Q: How do you ensure the interface compliance of robot arm brackets with standard industrial robot flanges?

A: We machine mounting bolt circles, pilot diameters, and tool center point (TCP) alignment pins strictly to ISO 9409-1 standards for industrial robots, as well as proprietary interface patterns for specific collaborative robot models. CMM verification reports are generated to confirm bolt-pattern pitch circle diameter (PCD) accuracy within +/-0.005 mm.

Q: What materials are recommended for reducing end-of-arm tooling (EOAT) weight on high-speed robot wrists?

A: For maximum payload capacity, we recommend aircraft-grade Aluminum 7075-T6 combined with selective pocketing to remove non-load-bearing mass. For applications requiring chemical resistance or electrical insulation, Carbon-Fiber-Reinforced PEEK or anodized AL 6061-T6 are utilized to maintain structural rigidity without adding excessive inertia to the robot wrist.

Q: Can you manufacture complex structural components and internal channels for multi-fingered dexterous hands?

A: Yes. Dexterous hands require miniature tolerances, thin-walled phalanges, and intricate internal routing channels for actuator cables. We utilize simultaneous 5-axis CNC milling and Wire EDM to machine complex internal cavities, tight hinge bores, and alignment pin slots without inducing warping or residual stress in delicate components.

Q: What standard surface treatments do you offer to prevent wear and galling on mating mechanical joints?

A: For aluminum components, we provide Type III Hardcoat Anodizing (Mil-A-8625) to achieve high surface hardness, resisting wear at fastening interfaces. For stainless steel, we apply chemical passivation to remove free iron and enhance corrosion resistance. Electroless nickel plating is also available for uniform thickness on complex internal geometries.

Q: What is your typical lead time for prototype production versus volume manufacturing batches?

A: Standard CNC machined prototypes are typically completed and shipped within 5 to 10 business days depending on geometric complexity and surface finishing requirements. For volume production batches (ranging from 50 to 2,000 units), standard lead times run between 3 to 4 weeks, with scheduled blanket-order deliveries supported upon agreement.

Shenzhen Jingcheng Dingyi Forming Technology Co., Ltd. is one of the most professional robot parts manufacturers and suppliers in China, also supports customized service with low price. Please feel free to buy bulk cheap robot parts from our factory. For quotation, contact us now.

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