This multi-hole robot rubber wire bushing is made from high-performance EPDM (ethylene propylene diene rubber) and features mixed multi-diameter holes. It neatly separates and secures robot cables while providing weather resistance, ozone resistance, waterproof and dustproof performance, with shock absorption. OEM size customization is available for industrial robot arm wiring harness pipeline packages as an effective sealing solution.

Mixed Multi-Hole Separated Wiring Design Featuring through-holes of varying diameters to segregate power cables, signal wires, and pneumatic tubes independently. Helps prevent wire tangling, friction, and abrasion during frequent robotic arm rotation, keeping internal wiring for robot pipeline packages clean and well organized.

Premium EPDM Raw Material, Excellent Weather & Ozone Resistance Made from industrial-grade EPDM rubber, it delivers outstanding resistance to ozone, UV radiation, aging, and water ingress. Maintains stable elasticity in the range of -40℃ to 120℃, with no hardening, cracking, or deformation under long-term workshop and outdoor working conditions. Offers significantly higher durability than typical NBR rubber for outdoor robot equipment.

One-Piece Integrated Molding, High Tear & Compression Resistance Seamless, one-time injection molding structure with strong tensile and tear strength. Designed to withstand repeated bending and twisting of robot pipelines for millions of cycles without cracking, making it suitable for 24-hour continuous automated production lines.

Double Outer Annular Grooves, Anti-Slip Locking Installation Two circular positioning grooves on the outer cylinder ensure a secure fit with robot pipeline plastic/metal housings. Remains firmly fixed without sliding or detaching during high-frequency reciprocating robot movements, helping reduce equipment maintenance costs.

Full OEM Customization & Broad Industrial Compatibility Customizable hole quantity, aperture sizes, overall dimensions, rubber hardness, and logo printing. Compatible with six-axis industrial robots and collaborative robots, for sealing robot pipeline wiring in welding and palletizing applications. Supports both small trial orders and large-volume wholesale.

Our multi-hole EPDM robot cable rubber gland is a purpose-designed sealing grommet for industrial robot arm pipeline packages. The top flat surface features multiple circular holes of different calibers, enabling simultaneous routing of multiple power lines, sensor signal wires, and pneumatic hoses for a classified wiring arrangement.

Once installed, the high-elastic EPDM rubber fits tightly around each cable, forming individual sealed barriers for all wires. It effectively blocks workshop metal filings, coolant, dust, moisture, and ozone—helping prevent wiring harness abrasion, corrosion, and short-circuit faults caused by long-term robotic movement.

High-Performance EPDM (Ethylene Propylene Diene Monomer Rubber) EPDM rubber provides superior ozone resistance, UV resistance, water resistance, and heat resistance compared with nitrile rubber. It maintains stable soft elasticity from -40℃ to 120℃ and resists aging even under strong light, high temperatures, and humid factory conditions, delivering a longer service life for automation equipment operating in harsh environments.

Mixed Large- and Small-Aperture Layout Combining larger and smaller hole sizes allows one bushing to accommodate standard robot power cables, thin sensor signal lines, and pneumatic tubes. This reduces cable entanglement and mutual friction during multi-angle robot rotation, significantly extending wiring harness service life.

Double Locking Groove Outer Cylinder Two circular positioning grooves on the outer wall enable secure clamping by robot pipeline metal/plastic shells. Prevents displacement or detachment during high-speed robotic arm swings, ensuring consistent long-term sealing performance.

Integrated Injection Molding Process Single-piece molding without splicing gaps, offering excellent compression and tear resistance. The gland can repeatedly bend and twist with pipeline movement without cracking, making it suitable for high-frequency dynamic working conditions in automated workshops.

Application Scenarios

Specially designed for wiring sealing of industrial robot pipeline packages, widely used in:

6-axis handling robots, welding robots, palletizing robots

Collaborative robots, manipulators, automated assembly production equipment

CNC machine tools, stamping & spraying production lines (wire sealing glands)

Robot integrators, automation equipment manufacturers, industrial aftermarket spare parts distributors

Full Custom Support

Hole layout customization: adjust hole quantity and diameters according to customer cable/tube specifications

Overall dimension customization: modify outer diameter, height, and wall thickness to match different pipeline housings

Hardness customization: adjust EPDM rubber hardness to suit high- or low-frequency swing working conditions

Brand printing service: silk-screen customer brand logos on the flat top surface

Flexible order policy: accept small sample trial orders and large-volume wholesale