Products

14″ Colour CRT Monitor for CNC – HEIDENHAIN BC 110B

The BC 110B is a 14-inch colour CRT monitor (“14-inch Colour CRT Monitor”) manufactured by HEIDENHAIN, designed as the dedicated operator display unit for CNC controls of the TNC series (specifically TNC 426 and TNC 430). The monitor is integrated into the machine tool control cabinet and provides the operator with all machining data, programming graphics and CNC diagnostic screens in real time. It employs CRT (colour cathode ray tube) technology with a resolution typical for this era of 640×480 pixels; it is AC-powered and fitted with proprietary HEIDENHAIN connectors for connection to the control unit.

The monitor is the primary interface between the operator and the CNC: it displays axis coordinates, NC programs, cycle screens and diagnostic pages in real time. A monitor failure renders the machine completely inoperable, since the operator cannot read axis positions, enter tool offset values or interpret active alarms; replacement with an identical or compatible unit is the only fast way to restore production.

HEIDENHAIN is a German company founded in 1889 in Traunreut (Bavaria), world leader in the manufacture of rotary and linear encoders, precision measurement systems and CNC controls for machine tools. The TNC controls are widely used on high-end milling centres, grinding machines and 5-axis machines. The BC 110B belongs to a generation of products now legacy / discontinued: CRT technology has been progressively replaced by flat LCD panels, and working units are available exclusively as used or through specialist repair services.

Main Technical Specifications

Servo Drive Module – HEIDENHAIN UM 114D

The UM 114D is an electronic servo drive module (“Servo Drive Module”) manufactured by HEIDENHAIN, designed to regulate axes or spindle within HEIDENHAIN CNC systems. It belongs to the family of power electronics modules used to drive and regulate servo motors (brushless and DC) within the CNC automation chain, interfacing with the main control unit via the proprietary HEIDENHAIN bus. The suffix D identifies a specific variant (e.g. rated voltage configuration or connector layout); the component may be present in different hardware revisions.

The drive module is the core of the axis regulation loop: it receives the position or speed reference from the numerical control and generates the drive current for the servo motor, ensuring positioning accuracy and stable dynamic response during machining. Without it the controlled axis is completely inert and the machine cannot execute any cycle; a fault typically manifests as position alarms, axis drifting, or immediate CNC program halt.

HEIDENHAIN (Dr. Johannes Heidenhain GmbH) is a German company founded in 1948 in Traunreut (Bavaria), a world leader in the production of high-precision linear and rotary measurement systems, TNC numerical controls, and drive modules for precision machine tools. The company remains privately and family-owned. Products in the UM series are legacy / discontinued: available exclusively as used, NOS (new old stock) or through specialist repair.

Main Technical Specifications

Axis Drive Module – HEIDENHAIN UM 114

The UM 114 is an axis servo drive module (“Axis Drive Module”) manufactured by HEIDENHAIN, belonging to the modular drive family integrated into TNC-series CNC systems. The module manages the current and velocity regulation loops for brushless or DC servo motors connected to machine axes, interfacing with the control unit via the proprietary HEIDENHAIN bus. It is compatible with HEIDENHAIN encoders (resolver or incremental/absolute encoder). The commercial part number is UM 114.

The axis drive module is the electronic controller that closes the velocity and current loop on the axis servo motor: it receives the position/speed reference from the CNC unit and generates the current required to move the axis with precision and repeatability. Without it the axis cannot be controlled; any failure immediately halts the machine and makes machining impossible.

HEIDENHAIN is a German company founded in 1889, a world leader in the manufacture of linear and rotary encoders, CNC control systems (TNC series) and drives for high-precision machine tools. Products in the UM family belong to a historical generation of drives: legacy / discontinued, available exclusively as used, surplus or through specialist repair.

Main Technical Specifications

Servo Axis Drive Module – HEIDENHAIN UE 211B

The UE 211B is a servo axis drive module (“Servo Axis Drive Module”) manufactured by HEIDENHAIN, belonging to the family of compact drive units designed for use with HEIDENHAIN TNC CNC controls (documented on TNC 155, TNC 355 systems and compatible variants). The module manages the current and speed regulation of a machine axis servo motor, interfacing with the CNC unit via HEIDENHAIN’s proprietary bus. The designation UE 211B identifies revision B of the 211 series; the unit is typically mounted inside the control cabinet or the machine’s drive assembly.

The servo axis drive module is the component that converts position and speed references from the CNC into drive current for the servo motor: it closes the current loop and contributes to the speed loop, ensuring the dynamic response required for precision machining. If it fails, the controlled axis becomes inoperative and the machine cannot perform any operations; replacement with an identical unit is often the only rapid solution, as these modules are not interchangeable with units of different series.

HEIDENHAIN is a German family-owned company founded in 1889, headquartered in Traunreut (Bavaria), and a world leader in the manufacture of linear and angular measurement systems, rotary encoders, and high-precision CNC controls for machine tools. The UE series modules belong to a legacy generation of drives: legacy / discontinued, available exclusively through the used market, industrial surplus, or specialist repair services.

Main Technical Specifications

CNC Switching Power Supply Unit – HEIDENHAIN 289 133-13

The 289 133-13 is a switching power supply unit for CNC systems (“Power Supply Unit”) manufactured by HEIDENHAIN, designed to power the logic boards, interface modules, and internal peripherals of TNC-series numeric controls (documented on systems such as TNC 155, TNC 360, and related models). The unit generates the regulated DC voltages required for the control electronics: typically +5 V, ±12 V, and +24 V DC. The alternative part number is listed exclusively in the technical specifications table.

The power supply unit is the energy core of the numeric control: it converts mains voltage into stabilised and filtered voltages indispensable for the CPU, axis boards, I/O modules, and encoders. A power supply failure causes an immediate and total machine shutdown — the CNC will not start, communication with the drives ceases, and any active machining operation is abruptly interrupted, risking part rejection and, in some cases, damage to tooling or the worktable.

HEIDENHAIN is a German manufacturer founded in 1948, a world leader in the production of linear and rotary encoders, scale-based measurement systems, and high-precision numeric controls for machine tools. TNC-series controls are widely deployed on milling machines, machining centres, and precision grinding machines. Internal components for older TNC series are legacy / discontinued: available only as used spares, NOS surplus, or through specialist repair services.

Main Technical Specifications

14” Colour Industrial CNC Monitor – Hitachi CD1472D1M

The CD1472D1M is a 14” industrial colour CRT monitor (“14-inch Colour CRT Monitor”) manufactured by Hitachi, used as the operator display unit in CNC machine tools from the 1980s through to the early 2000s. It employs colour CRT (cathode ray tube) technology with analogue RGB or TTL RGB video input depending on the variant. The suffix “D1M” identifies the variant with connector type and sync parameters optimised for integration with the numerical control systems of the period. It was adopted as a qualified standard by numerous CNC machine tool OEMs — including machining centres and CNC lathes equipped with Fanuc, Mitsubishi and Mazak controls — that sourced Hitachi monitors as a preferred supplier.

The monitor is the primary visual interface between the operator and the numerical control unit: it displays NC programs, axis positions, alarm messages and configuration menus in real time. A monitor failure — blank screen, distorted geometry, colour loss, horizontal lines or an unstable image — makes it impossible to read any machine parameter and effectively halts production: without visibility of the CNC panel the operator cannot start machining cycles, apply tool offsets or acknowledge alarms.

Hitachi is a Japanese industrial conglomerate founded in 1910, historically active in industrial electronics, professional displays and factory automation. Hitachi CRT monitors for CNC were widely adopted by Japanese and European OEMs throughout the 1980s and 1990s, valued for their proven reliability and long service life. All CRT products in this family are legacy / discontinued: no longer available new and obtainable only as used, surplus or through specialist repair services.

Main Technical Specifications

AC Servo Inverter – LENZE EVS9324-ESV004

The EVS9324-ESV004 is an AC servo inverter (“AC Servo Drive”) from the 9300 series by LENZE, designed for field-oriented vector control of AC synchronous/brushless servo motors in CNC and industrial automation applications. The part number identifies a unit from the EVS9300 family with integrated EMC filter (suffix E), in hardware/software variant SV004. The series is documented on CNC machining centres, CNC lathes, packaging machinery and multi-axis motion control systems. The drive provides precise speed and torque control of the servo motor via incremental encoder or resolver feedback. Multiple variants exist within the EVS9300 series, differentiated by power rating and fieldbus communication options.

The servo inverter is the core of the drive chain on a CNC axis: it converts mains voltage into variable voltage and current for the motor, executing real-time field-oriented control (FOC – Field Oriented Control) based on the CNC command and the encoder feedback signal. A servo inverter failure completely disables the controlled axis — the machine can neither position nor interpolate that axis, making any machining operation impossible until the unit is replaced or repaired.

LENZE is a German manufacturer founded in 1947, specialising in electric drives, inverters, gear motors, and automation systems for industrial machinery; the group has remained independent and is still active, headquartered in Aerzen, Germany. The EVS9300 series, introduced in the 1990s, was one of the most widely deployed servo drive families in European CNC and packaging applications; the entire product line is now legacy / discontinued, having been replaced by the i550 and i650 platforms.

Main Technical Specifications

AC Servo Inverter – LENZE EVS9323-ES

The EVS9323-ES is an AC servo inverter (“AC Servo Inverter”) from the 9300 series manufactured by Lenze, designed for field-oriented vector control of synchronous and asynchronous AC servo motors in industrial automation and CNC machine tool applications. The unit implements PWM modulation with high-dynamic speed and torque regulation; the ES variant identifies a specific functional and communication configuration within the EVS9300 family. The device supports feedback via incremental encoder or resolver and fieldbus protocols for seamless integration into the machine control system.

The EVS9323-ES is the axis controller that receives the position or speed reference from the CNC and generates the output voltage and frequency required to drive the motor with micrometric precision in both speed and torque. A failure of this component renders the controlled axis completely inoperative: the machine stops on alarm, the current machining operation must be aborted with the consequent risk of scrapping the workpiece in progress, and recovery requires replacement or repair of the module before the production cycle can be restarted.

Lenze SE is a German company headquartered in Aerzen (Lower Saxony), founded in 1947 and specialised in drive and industrial automation technology: frequency inverters, servo drives, gearboxes and control systems for the manufacturing industry. The EVS9300 series has been progressively superseded by next-generation platforms (including the i700 series); products in the EVS9300 family are now considered legacy / discontinued and available exclusively as used spare parts, NOS surplus or through specialist repair services.

Main Technical Specifications

Industrial CNC Floppy Disk Drive – LAND LDS-3WAS

The LDS-3WAS is an industrial 3.5” floppy disk drive (“Industrial Floppy Disk Drive”) manufactured by LAND, designed specifically for use on computer numerical control machines. The unit supports standard DD (720 KB) and HD (1.44 MB) formats and is equipped with a 34-pin interface compatible with the conventional floppy bus adopted by major CNC manufacturers. The device is conceived as a direct drop-in replacement for the original floppy units installed in CNC control panels of the 1980s–1990s–2000s generations.

The floppy disk drive is the mass storage device that enables part program transfer (ISO/DIN files) to and from the numerical controller, as well as the saving and restoration of machine parameters, tool offsets, and configuration data. A drive failure prevents loading new programs and backing up critical data, halting production or exposing the machine to the risk of irreversible configuration loss in the event of work on the controller.

LAND is a manufacturer specialising in floppy disk units and storage peripherals for industrial applications, with a catalogue focused on the CNC, metrology and factory automation sectors. The LDS product range is designed as direct drop-in replacements for original units fitted by manufacturers such as Fanuc, Siemens, Mitsubishi and Yasnac. This product type is legacy / discontinued in its original magnetic floppy versions; units are now found mainly as used/surplus stock or replaced by drop-in USB emulators.

Main Technical Specifications

Servo Axis Drive Module – MAZAK D72JV007910

The D72JV007910 is an electronic servo axis drive module (“Servo Axis Drive Unit”) manufactured by MAZAK (Yamazaki Mazak Corporation), used in CNC machining centres and lathes equipped with the proprietary MAZATROL control system. The module manages the position, speed and current regulation loops of the servo axis motor, interfacing with the machine’s CN board and with the motor via encoder or resolver. The factory part number D72JV007910 uniquely identifies this unit within the MAZAK spare-parts architecture; no distinct alternative part number is documented.

The servo axis drive module is the electronic core that converts position commands issued by the CNC into precise phase currents for the servo motor: it manages the current loop, speed loop and position loop in real time, ensuring dimensional accuracy and repeatability of axis movements. A failure in this component completely locks the controlled axis, making the machine inoperable; partial degradation causes oscillations, dimensional errors and drive alarms on the MAZATROL panel.

Yamazaki Mazak Corporation, founded in Japan in 1919 and headquartered in Oguchi (Aichi Prefecture), is one of the world’s largest manufacturers of CNC machine tools: vertical and horizontal machining centres, multitasking turning centres and FMS systems. The MAZATROL control system is developed in-house and defines the entire product range. Electronic components of the D72JV series belong to control generations no longer in production: legacy / discontinued, available exclusively as used, surplus or through specialist repair centres.

Main Technical Specifications

CNC Servo Drive – MAZAK MV4-200 W

The MV4-200 W is an electronic servo drive module for CNC control (“Servo Drive / Servo Amplifier”) manufactured by Mazak (Yamazaki Mazak Co., Ltd.), documented as the axis motion power amplifier in CNC vertical machining centres of the MV series (specifically the MV-4) equipped with the Mazatrol CNC control. The module integrates power amplification and speed/current regulation functions for the axis servo motor, interfacing with the Mazatrol CNC unit via a dedicated bus. The designation “200 W” denotes the nominal output power rating to the servo motor.

The servo drive is the electronic component that receives position and speed commands from the Mazatrol CNC unit and converts them into power current for the axis servo motor: it closes the position, speed, and current control loops, ensuring precision and repeatability in the machine’s movements. A drive failure causes immediate axis lock, a CNC alarm, and prevents any machining operation until the module is replaced or repaired.

Yamazaki Mazak Co., Ltd. is one of the world’s leading CNC machine tool manufacturers, founded in 1919 in Oguchi, Japan; it produces machining centres, CNC lathes, laser systems, and the proprietary Mazatrol numerical control. Components from the MV series of the 1980s–1990s are legacy / discontinued: availability is limited to the used market, NOS surplus stock, or through specialist repair services.

Main Technical Specifications

Switching Power Supply 25 W 12 V DC – MEAN WELL S-25-12

The S-25-12 is a single output switching power supply 25 W / 12 V DC (“Single Output Switching Power Supply”) manufactured by MEAN WELL. It belongs to the S-25 series, featuring a universal AC input of 85–264 V AC (or 120–370 V DC) and a regulated output of 12 V DC / 2.1 A. It is documented as a component in CNC control cabinets, industrial automation systems, and electronic equipment in general. The unit is fanless (natural convection cooling) and compliant with CE/UL standards. The output voltage is adjustable via an onboard trimmer in the 10–13 V range; no significant revision variants exist in the standard version.

The S-25-12 provides the regulated 12 V DC auxiliary supply required to power logic boards, relays, transducers, displays, and other subsystems inside the CNC control cabinet. A failure results in loss of voltage across all 12 V circuits: the machine stops, drives lose their auxiliary supply, and the CNC cannot complete the enable sequence. In many control cabinets it is a critical, non-redundant component.

MEAN WELL is a Taiwanese switching power supply manufacturer founded in 1982, now one of the world’s leading suppliers with over 10,000 catalog models and worldwide distribution. The S-25 series is actively produced and widely available from major global electronics distributors.

Main Technical Specifications