Robot arms and motion control
XY1 and XY2 micro circular connectors serve robots. J30J carries dense signals, and mixed-power J30J combines power and signal for servo interfaces.

Robot arms, drives and machine tools need connectors that are small and light, survive constant motion and vibration, and carry both power and signal.
XY2 and XY1 micro circular connectors cut weight by 30–50 % compared with Series III; Micro-D connectors save board space; HMS31 carries up to 150 A; CZ4 and DMK serve interfaces that are mated thousands of times.
CZ4 mating cycles with the 180° quick-lock; 5,000 threaded
HMS31 power contacts; the family covers 13–150 A
J30J Micro-D pitch, 5 to 144 contacts
XY1 push-in miniature circular connectors
XY1 and XY2 micro circular connectors serve robots. J30J carries dense signals, and mixed-power J30J combines power and signal for servo interfaces.
HMS31 and HMS31-K serve machine tools and CNC systems; mixed-power J30J serves motor drives and servo controllers.
CZ4, DMK and POGO serve industrial electronics and test interfaces that are mated thousands of times.
Compared with GJB 599 Series III of the same layout, XY2 is about 30 % lighter and 50 % smaller, and XY1 about 50 % lighter and 60 % smaller.
CZ4 reaches 15,000 cycles with its quick-lock and 5,000 threaded; DMK and POGO reach 10,000.
HMS31 contacts carry 13–150 A. Mixed-power J30J places 20 A power contacts beside 3 A signal contacts in a Micro-D shell.
XY1 is sealed to IP67 from −40 to +120 °C. XY2 has an integrated banding platform for the cable shield and ≥ 55 dB EMI/RFI shielding at 10 GHz.
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| Series | Coupling | Layouts or shell sizes | Current or contact sizes | Temperature | Datasheet |
|---|---|---|---|---|---|
| XY1 | Push-in | 8 insert arrangements | 23 to 12 (5–23 A) | −40 to +120 °C (IP67) | PDF, 225 KB |
| XY2 | Triple-start thread | 29 insert arrangements | 23, 20HD, 16, 12 (5–23 A) | −65 to +200 °C (+175 °C T and W finishes) | PDF, 268 KB |
| HMS31 | Threaded | Shell sizes 8S to 40 | 13–150 A | −55 to +125 °C | PDF, 225 KB |
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| Series | Contacts | Current | Temperature | Mating cycles | Datasheet |
|---|---|---|---|---|---|
| J30J | 5 to 144 | 3 A | −55 to +125 °C | 500 | PDF, 224 KB |
| CZ4 | Modules of 2, 4, 5, 10, 45 | 1–50 A | −55 to +125 °C | 15,000 (quick-lock) / 5,000 (threaded) | PDF, 145 KB |
| DMK | 60, 96, 156, 260 | 5 A | −55 to +105 °C | 10,000 | PDF, 142 KB |
| POGO | 1–20 (single row), 1–10 per row (double) | 1 A | −55 to +125 °C | 10,000 | PDF, 140 KB |
Separate power, signal and differential data, with the current and wire size for each. Mixed-power layouts put different contact sizes in one shell.
Give the expected mating cycles and how the connector is handled: XY1 pushes in, XY2 threads, CZ4 locks with a 180° turn, DMK closes with a cam and POGO pins press on flat pads.
Give the panel cut-out, board space and cable exit. Micro circular connectors save weight; Micro-D saves board space.
Give water exposure, temperature, vibration and shielding needs, with cable type and pin-out, and we will review your project.

≈ 30 % lighter, 50 % smaller than Series III · threaded · 9 shell sizes

IP67 · push-in quick connect · ≈ 50 % lighter than Series III

1.27 mm pitch · 5 to 144 contacts · twist-pin contacts

MIL-DTL-5015 type · threaded · contacts up to 150 A
Modular · 1–50 A contacts · 15,000 cycles quick-lock

Zero insertion force · 60–260 contacts · 10,000 cycles

Spring pins · 10,000 cycles · surface mount

20 A power + 3 A signal · Micro-D size · twist-pin signal contacts
All series can be customized — contact counts, cable lengths, materials and finishes.
Micro-D (1.27 mm pitch) vs Nano-D (0.635 mm pitch) connectors: differences in current, contact count, mating cycles and variants, and how to choose.
How twist-pin contacts work, why Micro-D and Nano-D connectors use them, and what they mean for contact resistance, vibration resistance and mating life.
What IP67 and IP68 mean for connectors, how they differ from hermetic sealing and underwater depth ratings, and what to put in your specification.
How to pick 38999-type contact sizes 22D, 20, 16, 12 and 10 by current and wire gauge, with a reference table and notes on derating and mixed layouts.
Compared with a GJB 599 Series III connector with the same layout, XY1 is about 50 % lighter and 60 % smaller, and XY2 about 30 % lighter and 50 % smaller.
CZ4 reaches 15,000 cycles with its 180° quick-lock and 5,000 with the threaded lock. DMK and POGO reach 10,000.
Yes. Mixed-power J30J combines 20 A power contacts and 3 A signal contacts in a Micro-D shell; power-only layouts are also available.
XY1, a push-in miniature connector with removable crimp or solder contacts, rated from −40 to +120 °C.
HMS31 5015-type connectors, with contacts from 13 A to 150 A, for machine tools, automation and power distribution.
Part number, drawing, pin-out or a short description of your application.
Our engineers match the configuration and reply with a drawing and quotation.
Samples are built to order. The minimum order quantity is 10 pieces, and samples and production orders each take 4–8 weeks. Third-party testing to your specification is available on request.
You test the samples in your own equipment and approve them.
Production follows the approved sample configuration, with machining, molding, plating and assembly in our own Shenyang factory.
Send your part number, pin-out or drawing. Every inquiry is acknowledged by email within 1 business day, and an engineer follows up with a matched configuration, drawing or quotation.