Robot Connectors from China

The current selection covers Jonhon circular electrical and optical/hybrid connector families. Specify shell size, contact arrangement, mating part and cable assembly for the connection you need.

As of July 2026, this catalog lists 2 models from 1 manufacturer. Filter by the requirements below, then request a quotation for the exact configuration.

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Choose a manufacturer or product type, then narrow the specifications.

Showing 2 of 2 models

Jonhon GJB599 III

Material: Aluminum alloy shell with electroless nickel or cadmium plating; copper alloy contacts
Process: Precision machining, plating, thermoset insert moulding, contact assembly
Key Dimension: Shell sizes 9 to 25 with multiple insert arrangements

Price on request

Details Request a quote

Jonhon J599

Material: Aluminum alloy shell with protective plating; ceramic ferrule optical termini
Process: Precision machining, plating, optical termini assembly and polishing
Key Dimension: J599 standard shell sizes

Price on request

Details Request a quote

Compare 2 matching models

Model	Material	Dimensions / configuration	Contact / circuit configuration	Quote
Jonhon GJB599 III	Aluminum alloy shell with electroless nickel or cadmium plating; copper alloy contacts	Shell sizes 9 to 25 with multiple insert arrangements	Contact sizes 22D to 8 covering signal to power current levels	Quote
Jonhon J599	Aluminum alloy shell with protective plating; ceramic ferrule optical termini	J599 standard shell sizes	Optical channels plus electrical contacts in hybrid layouts	Quote

Compare the listed configurations. Confirm required options, operating conditions and current pricing with your quotation.

Compare the same configuration and operating conditions. Reference prices exclude the final accessory and delivery package.

TECH EXPLAINER · 7 MIN

EtherCAT vs CAN FD in Robot Components: What Integrators Should Specify

Choosing CAN FD or EtherCAT for a robot control system.

Read the guide

Connectors FAQ

Why are hybrid power-and-signal circular connectors used in robot joints?

Hybrid connectors combine high-current phase or DC bus pins with shielded CAN FD, EtherCAT, or encoder signal pins in a single compact housing, simplifying daisy-chained harness routing through hollow shafts.

What specifications are required to select or cross-reference a robot connector?

Provide the shell size, pin count and wire gauge per contact, continuous current and voltage rating, locking mechanism (push-pull, bayonet, or threaded M8/M12), IP rating when mated, and panel vs inline mounting.

Can connectors be supplied as overmolded cable harnesses?

Request the required connector and cable assembly as a defined scope, including pinout, length, shielding, bend and torsion requirements, overmolding and test reports. Confirm availability and tooling charges with the selected supplier.