INDUSTRIAL CABLE MANUFACTURING

Core Cable Manufacturing Technologies

From precision conductor stranding and insulation extrusion to cabling, shielding, jacketing and in-process inspection, Hulk combines engineering expertise with disciplined manufacturing control to produce reliable industrial cables at scale.

Discuss Your Cable Requirements Explore Our Manufacturing Process

15,000㎡ Manufacturing Facility
300,000+ Meters Daily Production Capacity
150+ Skilled Professionals
35+ International Certifications

A high-performance industrial cable depends on more than the materials listed in its specification. Conductor construction, stranding pitch, insulation uniformity, core arrangement, shielding coverage and jacket consistency all influence how the cable performs after thousands or millions of motion cycles.

At Hulk Cable, manufacturing technology is treated as an extension of cable engineering. Every production process is planned around the electrical, mechanical, environmental and compliance requirements of the finished cable.

Our manufacturing capabilities support a broad range of industrial cable products, including:

High-flex cables for continuous linear motion
Servo power and feedback cables
Robot and torsion cables
Sensor and actuator cables
Industrial Ethernet cables
Fieldbus and industrial communication cables
High-temperature silicone cables
Halogen-free and flame-retardant cables
UL-recognized wires
Custom-engineered industrial cables

By combining application review, controlled production processes and systematic inspection, we help customers move from initial specification to stable mass production with fewer technical risks.

15,000㎡ Facility

300,000+ m Daily Capacity

150+ Professionals

35+ Certifications

Every custom cable project begins with a technical review. Our engineers evaluate the cable structure, application conditions, electrical requirements, motion profile, installation environment and required certifications before production begins.

A typical cable manufacturing process may include the following stages:

Technical Specification Review

We review conductor size, core count, voltage rating, shielding requirements, jacket material, bend radius, operating temperature and applicable standards.
Material Preparation

Conductors, insulation compounds, shielding materials, fillers, tapes and jacket compounds are selected and prepared according to the approved cable design.
Conductor Stranding

Fine conductor wires are stranded into flexible conductor bundles with controlled construction and lay length.
Core Insulation

Each conductor is insulated using a material and wall thickness selected for the required electrical, mechanical and thermal performance.
Core Identification

Insulated cores are identified using colors, numbers or customer-specified marking systems to support installation and maintenance.
Core Cabling

Individual cores are assembled into a stable cable core with controlled pitch, sequence, fillers and structural support.
Shielding

Foil shielding, copper braid shielding or combined shielding structures are applied according to the cable’s electromagnetic compatibility requirements.
Outer Jacket Extrusion

The outer jacket is extruded using the specified compound, color, thickness and surface finish.
Online and In-Process Inspection

Key dimensions, electrical properties, surface condition and structural parameters are checked throughout production.
Final Testing and Packaging

Finished cables are tested, marked, packaged and recorded according to order and traceability requirements.

This structured production workflow helps maintain consistency between prototypes, initial production runs and recurring batch orders.

The conductor is the foundation of a flexible cable. Its wire diameter, strand count, strand geometry and lay length directly affect flexibility, conductor stability and resistance to repeated bending.

For high-flex and robotic applications, Hulk uses fine-stranded conductor constructions designed to distribute mechanical stress more evenly during motion. The conductor structure is selected according to the required current capacity, cable diameter, bend radius and flex-life target.

Our conductor manufacturing controls focus on:

Conductor cross-sectional area
Fine-wire strand consistency
Stranding pitch and direction
Conductor roundness
Electrical resistance
Surface condition
Flexibility and structural stability

For applications involving continuous movement, the conductor design must balance electrical performance with mechanical endurance. A conductor that is suitable for stationary installation may not provide sufficient reliability inside a drag chain, robotic arm or automated handling system.

Hulk engineers review the complete motion environment before defining the conductor construction for a custom cable.

01 Wall Thickness Control

02 Concentricity Control

03 Online Diameter Monitoring

Insulation protects each conductor electrically while also contributing to the cable’s flexibility, temperature resistance and mechanical behavior.

During insulation extrusion, process stability is essential. Uneven wall thickness, excessive eccentricity or unsuitable material processing can affect voltage performance, core diameter and the long-term durability of the finished cable.

Our insulation extrusion process is managed around key control points such as:

Material compatibility
Insulation wall thickness
Conductor concentricity
Finished core diameter
Surface uniformity
Color consistency
Electrical integrity
Temperature and process stability

Depending on the application, insulation materials may be selected for flexibility, heat resistance, flame performance, reduced capacitance, chemical resistance or compatibility with specific industry standards.

For industrial Ethernet, fieldbus and feedback cables, stable core geometry is especially important because variations in insulation and conductor positioning can influence impedance, capacitance and signal transmission.

Structural balance, controlled pitch and stable core positioning

After insulation, individual cores are assembled into the internal cable structure. This stage affects cable roundness, flexibility, torsional behavior, electrical balance and resistance to internal mechanical stress.

Core cabling must be adapted to the intended motion. A cable designed for linear drag-chain movement requires a different internal structure from a cable used in a multi-axis robot.

Our core cabling controls may include:

Core sequence and positioning
Cabling pitch
Lay direction
Filler selection
Central support elements
Taping and wrapping
Cable roundness
Diameter stability
Internal stress balance

For high-flex cables, the internal structure is designed to allow the cores to move in a controlled manner during repeated bending.

For robot and torsion cables, the structure must accommodate rotational movement while reducing local stress concentration and core migration.

The goal is not simply to assemble the cores, but to create a balanced cable structure that remains stable throughout its intended service life.

EMC AND SIGNAL INTEGRITY

Protecting Industrial Signals from Electromagnetic Interference

Industrial automation environments often contain servo drives, frequency inverters, motors, switching power supplies and other sources of electromagnetic interference.

The shielding structure must therefore be selected according to the cable’s electrical function, frequency range, installation method and EMC requirements.

Hulk supports multiple shielding configurations, including:

Foil Shielding

Foil shielding provides broad surface coverage and is commonly used for signal, data and communication cables.

Copper Braid Shielding

Braided copper shielding provides mechanical flexibility, current-carrying capability and effective protection in industrial motion applications.

Foil and Braid Combination Shielding

Combined shielding structures are used when applications require both high coverage and improved mechanical durability.

Individual and Overall Shielding

Individual pairs or cores may be shielded separately, while an overall shield protects the complete cable assembly.

Key shielding considerations include:

Shield material
Braid angle
Shield coverage
Drain wire configuration
Pair shielding
Overall shielding
Flexibility under motion
Jacket compatibility
Grounding requirements

The shielding design is coordinated with the conductor layout, insulation system and jacket construction to support reliable signal integrity and EMC performance.

PVC TPU/PUR TPE Silicone Halogen-Free

The outer jacket is the cable’s first line of defense against abrasion, oil, chemicals, heat, moisture, flame exposure and mechanical damage.

Hulk processes multiple jacket material systems for different industrial applications, including:

PVC
TPU and PUR-type materials
TPE
High-temperature silicone
Halogen-free compounds
Flame-retardant materials
Oil-resistant jacket compounds
Application-specific custom materials

Key Jacket Performance Requirements

The jacket material is selected according to the actual operating environment rather than appearance alone.

01 Abrasion resistance
02 Oil and coolant resistance
03 Chemical resistance
04 Flame-retardant performance
05 Low-smoke halogen-free performance
06 High- and low-temperature flexibility
07 UV resistance
08 Washdown resistance
09 Weld-spatter resistance
10 Smooth or low-friction surface properties

PROCESS CONTROL

During jacket extrusion, we control the external diameter, wall thickness, surface condition, color and print quality according to the approved specification.

For more information about processing silicone and specialty compounds, visit our Silicone and Special Material Extrusion capability page.

Explore Extrusion Technology

HIGH-FLEX CABLE TECHNOLOGY

Production Control for Continuous Bending Applications

High-flex cables are designed for repeated movement inside drag chains, linear handling systems, machine tools and automated production equipment.

Manufacturing these cables requires control over the complete structure, not only the conductor.

Important manufacturing considerations include:

Fine-stranded conductor construction
Short and controlled lay lengths
Balanced core arrangement
Low-friction internal materials
Stable insulation diameter
Flexible shielding construction
Abrasion-resistant outer jackets
Controlled cable roundness
Consistent finished outer diameter

Small variations in manufacturing can affect how stress is distributed during movement. For this reason, high-flex cable production must remain consistent from one batch to the next.

Hulk combines production control with motion testing to verify whether a cable construction is suitable for the intended bend radius, travel distance, speed, acceleration and cycle requirement.

ROBOT AND TORSION TECHNOLOGY

Cable Structures Designed for Multi-Axis Movement

Robot cables experience complex motion that may combine bending, twisting, acceleration and repeated directional changes.

Unlike conventional flexible cables, torsion cables must allow the internal cores, shielding and jacket to move without creating excessive localized stress.

Our robot cable manufacturing approach focuses on:

Balanced conductor and core construction
Controlled torsion-friendly cabling
Symmetrical internal structures
Flexible shielding systems
Materials with suitable elastic recovery
Stable core positioning
Resistance to core migration
Jacket durability under repeated twisting

The required cable structure depends on the robot type, axis of installation, torsion angle, torsion length, operating speed and surrounding environment.

Hulk works with customers to define the cable construction around the actual movement pattern rather than applying a standard design to every robotic application.

DATA AND COMMUNICATION CABLES

Precision Construction for Reliable Industrial Communication

Industrial Ethernet and fieldbus cables require both mechanical durability and stable electrical transmission.

The manufacturing process must control conductor geometry, pair arrangement, insulation diameter, twist rate, shielding and overall cable dimensions.

Hulk manufactures industrial communication cables for protocols and systems such as:

PROFINET
Industrial Ethernet
EtherCAT
CANopen
DeviceNet
Profibus
CC-LINK
AS-Interface
Sensor and actuator networks
IO-Link applications

Critical manufacturing controls may include:

Pair twist consistency
Pair-to-pair separation
Insulation concentricity
Capacitance balance
Characteristic impedance
Shielding continuity
Attenuation performance
Crosstalk control
Finished cable diameter

For moving data cables, the electrical design must remain stable while the cable is repeatedly bent or twisted. This requires close coordination between the electrical structure and mechanical cable construction.

Final inspection alone cannot guarantee a reliable industrial cable. Quality must be controlled throughout the manufacturing process.

At Hulk, production and quality teams monitor critical characteristics from material preparation through final packaging.

Manufacturing inspection and laboratory validation

02 Diameter and Concentricity Inspection

Typical In-Process Control Points

01 Conductor dimensions and resistance
02 Stranding consistency
03 Insulation diameter
04 Insulation wall thickness
05 Concentricity
06 Core identification
07 Cabling pitch
08 Shield coverage
09 Finished outer diameter
10 Jacket surface condition
11 Printing accuracy
12 Electrical continuity
13 Spark testing where applicable
14 Visual inspection
15 Length verification

PROCESS INTERVENTION

Nonconforming materials or process deviations are identified before they move into later production stages.

TEST CENTER CAPABILITY

Our test center is equipped with more than 30 advanced testing instruments and supports over 150 types of electrical, mechanical, environmental and application-specific tests.

CONSISTENT PRODUCTION

This combination of manufacturing control and laboratory validation helps us reduce variation and maintain stable cable performance across production batches.

Production documentation and batch-level manufacturing records

Hulk applies principles from the Toyota Production System to improve production consistency, reduce waste and support reliable delivery.

Our lean manufacturing approach focuses on:

Standardized production procedures
Clear process responsibilities
In-process quality checks
Material control
Production scheduling
Continuous improvement
Waste reduction
Delivery performance

ERP integration supports traceability across material preparation, production scheduling, inspection records, finished goods and order fulfillment.

Manufacturing Traceability Flow

Each stage connects production activity with the corresponding material, inspection and order records.

01 Raw Material
02 Work Order
03 Production
04 Inspection
05 Finished Goods
06 Shipment

Production Records Supporting Long-Term Supply

Depending on the project and documentation requirements, production records may include:

01 Raw material information
02 Work order details
03 Production batch numbers
04 Process inspection records
05 Final test results
06 Product marking information
07 Packaging and shipment records

Traceability is especially important for OEMs, machine builders and automation integrators that require long-term supply continuity and consistent product specifications.

Conductor, insulation, shielding, fillers, jacket and marking can be configured around the approved cable design.

Many industrial applications cannot be served by a standard off-the-shelf cable.

Hulk provides custom cable manufacturing support based on customer drawings, existing samples, technical specifications or application conditions.

Customizable elements include:

01 Conductor cross-sectional area
02 Fine-wire conductor construction
03 Number of cores
04 Pair and triad configuration
05 Core colors and numbering
06 Insulation material
07 Insulation wall thickness
08 Shielding configuration
09 Drain wire design
10 Fillers and internal support
11 Outer jacket material
12 Jacket color
13 Cable diameter
14 Surface printing
15 Voltage rating
16 Temperature range
17 Flame-retardant requirements
18 Oil and chemical resistance
19 Certification requirements
20 Packaging and reel configuration

Engineering Review Before Sampling

Our engineering and manufacturing teams review the complete cable structure before sampling to identify potential conflicts between electrical performance, mechanical flexibility, diameter, certification and cost.

CUSTOM SAMPLE OPTIONS Different cable diameters, jacket colors, cross-sections, markings and reel configurations can be developed around the approved specification.

RAPID SAMPLING

For new specifications, rapid sampling may be completed in approximately seven days, depending on material availability, tooling requirements and technical complexity.

Hulk operates a 15,000-square-meter manufacturing facility supported by more than 150 skilled professionals.

Our daily cable production capacity exceeds 300,000 meters, allowing us to support:

Engineering samples
Prototype batches
Low-volume custom production
Recurring OEM orders
Multi-specification cable programs
High-volume production
Export packaging
Long-term supply agreements

We serve customers across more than 30 countries and regions, including machine builders, automation companies, equipment manufacturers, contractors, distributors and system integrators.

Whether the requirement is a single custom cable specification or a multi-product sourcing program, our production planning is structured to support consistent quality and dependable delivery.

15,000㎡ Manufacturing Facility

300,000+ Meters per Day

150+ Skilled Professionals

30+ Countries and Regions

Our manufacturing technology supports cable solutions for demanding applications across industrial automation and equipment manufacturing.

Industrial cable manufacturing platform supporting power, motion, control, communication and high-temperature applications

High-Flex Cables

For drag chains, linear motion systems, automated equipment and machine tools.

Servo and Motor Cables

For servo drives, spindle motors, encoders, brakes and feedback systems.

Robot and Torsion Cables

For six-axis robots, SCARA robots, collaborative robots and rotating equipment.

Sensor and Actuator Cables

For proximity sensors, actuators, control devices and IO-Link systems.

Industrial Ethernet Cables

For real-time industrial data transmission and motion-network applications.

Fieldbus Cables

For EtherCAT, CANopen, DeviceNet, Profibus, CC-LINK and AS-Interface systems.

High-Temperature Silicone Cables

For applications operating from approximately -60°C to +200°C, depending on the cable design and specification.

Halogen-Free Cables

For applications requiring flame-retardant, low-smoke and reduced-halogen material systems.

Custom-Engineered Cables

For equipment manufacturers requiring application-specific conductor, shielding, jacket, marking or certification configurations.

Direct Factory Support

Your project is reviewed and produced by an experienced cable manufacturer, without unnecessary intermediaries between engineering and production.

Engineering-Led Manufacturing

Cable structures are developed around actual electrical, mechanical and environmental requirements.

Deep Customization Capability

We support customization of conductors, insulation, shielding, jackets, colors, markings, certifications and packaging.

Controlled Production Processes

Critical manufacturing parameters are monitored from conductor preparation through final cable inspection.

Testing and Validation

Our laboratory supports electrical, mechanical, environmental and motion endurance testing.

International Compliance Support

Hulk holds more than 35 product and system certifications covering markets in North America, Europe and Asia-Pacific.

Scalable Production Capacity

We support projects ranging from rapid samples to stable high-volume production.

Global Customer Support

Our team provides technical communication, order follow-up and after-sales support for international customers.

What are the main steps in industrial cable manufacturing?

The main steps typically include technical review, material preparation, conductor stranding, insulation extrusion, core identification, cabling, shielding, outer jacket extrusion, in-process inspection, final testing and packaging. The exact process depends on the cable structure and application.

How does conductor stranding affect cable flexibility?

Fine-stranded conductors generally provide better flexibility than conductors made with fewer, larger wires. Strand diameter, strand count, lay length and conductor geometry all influence how mechanical stress is distributed during repeated bending.

How do you control cable insulation thickness?

Insulation thickness is controlled through extrusion process settings, tooling, material preparation and dimensional inspection. Concentricity, finished core diameter and surface consistency are also monitored according to the approved specification.

What shielding options are available for industrial cables?

Available shielding structures may include aluminum foil, copper braid, tinned copper braid, individual pair shielding, overall shielding or combined foil-and-braid designs. The correct structure depends on the cable function and EMC environment.

Can Hulk manufacture cables for continuous movement?

Yes. Hulk manufactures high-flex, drag-chain, robot and torsion cables for continuous motion applications. The design must be matched to the bend radius, travel distance, speed, acceleration, torsion angle and required cycle life.

Can you manufacture custom industrial Ethernet cables?

Yes. We support custom industrial Ethernet and fieldbus cables with application-specific conductor sizes, pair configurations, shielding structures, jacket materials and motion requirements.

Which cable jacket materials can Hulk process?

Depending on the project, available materials may include PVC, TPU, PUR-type compounds, TPE, silicone, halogen-free compounds and other application-specific materials.

How do you maintain consistency between production batches?

Consistency is supported through approved specifications, standardized production procedures, in-process inspections, batch records, ERP traceability and final product testing.

Can you manufacture UL-recognized custom cables?

Hulk holds UL-related product certifications and can evaluate custom cable projects requiring North American market compliance. Certification feasibility depends on the cable construction, materials, intended use and required standard.

What information is required to start a custom cable project?

You can provide a cable drawing, datasheet, existing sample or application description. Helpful information includes voltage, current, core count, conductor size, movement type, bend radius, operating temperature, shielding, jacket material, environmental exposure and certification requirements.

How long does custom cable sampling take?

A new cable sample may be completed in approximately seven days for suitable projects. The final sampling time depends on material availability, tooling, certification requirements and design complexity.

Does Hulk provide mass-production support after sampling?

Yes. After the sample and specification are approved, the project can move into pilot production and then scheduled mass production with defined inspection and traceability requirements.

CUSTOM CABLE MANUFACTURING

Turn Your Cable Specification into a Production-Ready Solution

Send us your cable drawing, technical specification, existing sample or application requirements. Our engineering team will review the conductor construction, insulation, shielding, jacket, movement conditions and compliance requirements before recommending a manufacturing solution.

Request a Cable Manufacturing Review Send Your Cable Specification

Rapid sampling, custom engineering and scalable production for industrial automation, robotics, machine tools and demanding electrical applications.