A4 series

A4 Series Twist-Lock Handpiece-End Connector

The A4 Series Twist-Lock connector — the handpiece-side half of the A4 interface — is supplied in black / white. The A4 takes the twist-lock concept and scales the housing up for larger handpieces. A wider body gives more room for the signal block and keeps the power contacts further apart.

  • Matched handpiece-end connector for larger handpieces and higher-power platforms that still use a twist-lock interface
  • Keyed shell — mates one way only, no reversed insertion
  • 2 power + 8 signal carried in a single mated pair
  • Black / White housing; flexible or rigid hose
  • OEM colour, logo and pin-out options on request

Request quotation for KMD-A4-BJ-28-H

Or send the mating-socket photo to info@kmdconnector.com — we confirm the variant before you order.

Overview

The A4 Series Twist-Lock connector — the handpiece-side half of the A4 interface — is supplied in black / white. The A4 takes the twist-lock concept and scales the housing up for larger handpieces. A wider body gives more room for the signal block and keeps the power contacts further apart.

It is used on larger handpieces and higher-power platforms that still use a twist-lock interface. Power and signal are separated inside the housing, and the keyed shell prevents the two halves from being forced together in the wrong orientation. It suits OEMs building a family of devices: the A1, A3 and A4 share the same locking gesture, so training and field support stay simple.

Specify the pair by series, not by part: A4 plugs and handpiece-end connectors are checked as a set before packing.

Specifications

ModelKMD-A4-BJ-28-H
SeriesA4
TypeHandpiece-end connector
Pin configuration2 power + 8 signal (standard)
Housing colourBlack / White
Tail / hoseflexible or rigid hose
Mating halfA4 plug-in connector
CertificationCE / RoHS / UL
MOQ200 pcs (OEM) · 50 pcs (distributor) · 5 pcs (repair)
Lead time15 working days after deposit

Frequently asked questions

Which machines does this connector fit?

It is designed for larger handpieces and higher-power platforms that still use a twist-lock interface. Interface compatibility depends on the pin-out and keying of your handpiece, so send us a photo of the mating socket or the machine model before ordering; we will confirm the match in writing.

Is this a complete connector or half of a pair?

This listing is the handpiece-end half. The mating plug half is a separate part number; order both for a guaranteed keyed pair.

Can you supply samples before a bulk order?

Yes. Samples are available for evaluation, and the sample cost is normally credited against the first production order.

Can the colour, logo or pin-out be customised?

Housing colour and laser marking are tooling-dependent and can be quoted; pin-out changes require a minimum quantity because they change the contact block.

What is the MOQ and lead time?

Both depend on the series and configuration. Send your annual volume and target date and we will return a firm quotation with a production schedule.

Other A4 parts