Mitsubishi MELSERVO MR-J4 and MR-J5 servo drives are mid-to-premium tier Japanese-OEM servo amplifiers stocked by Flextech Industrial Supplies for Malaysian machine builders, system integrators, and CNC equipment builders requiring precision closed-loop motion control on production machines.
Mitsubishi Electric MELSERVO series represents one of the two strongest servo drive brands in the Malaysian industrial automation market – alongside Panasonic MINAS – with established integrator training, local technical support through Mitsubishi Electric Malaysia (Shah Alam), and the widest Malaysian machine builder familiarity with SSCNET III/H and CC-Link IE motion networks. Flextech provides MR-J4 and MR-J5 quotations within 24-48 hours from Puchong, Selangor with genuine OEM authentication on every unit.
Mitsubishi MR-J2S Servo Drive — Legacy AC Servo
About Mitsubishi MELSERVO: Japanese Servo Drive Standard
Mitsubishi Electric MELSERVO series (MR-J prefix, launched in 1987 with continuous evolution through MR-H, MR-J2S, MR-J3, MR-J4, and current MR-J5 generation) is a Japanese-OEM servo amplifier platform integrated with Mitsubishi MELSEC PLC and CNC systems via SSCNET III/H fibre optic motion network and CC-Link IE TSN Ethernet - the most mature servo-PLC integration architecture in the Malaysian automotive and electronics automation market.
Mitsubishi Electric Malaysia operates an authorised technical support and repair centre in Shah Alam, Selangor - providing Malaysian buyers with direct OEM-level support, genuine spare parts, and warranty service. This local OEM presence distinguishes Mitsubishi servo drives from brands without Malaysian OEM direct support, and is a material factor in total cost of ownership calculations for high-uptime Malaysian production lines.
Mitsubishi MELSERVO Product Lines
| Series | Power Range | Encoder | Communication | Generation |
| MR-J4 | 0.05-55 kW | 22-bit absolute | SSCNET III/H, CC-Link IE Field | Current (mature) |
| MR-J5 | 0.05-55 kW | 26-bit absolute | CC-Link IE TSN, EtherCAT | Current (latest) |
Mitsubishi MR-J4 servo drives are the established workhorse of Malaysian machine builders - proven in automotive, electronics, semiconductor, and packaging applications across Peninsular Malaysia's industrial corridors. MR-J4 connects to Mitsubishi MELSEC iQ-R and iQ-F motion CPUs via SSCNET III/H fibre optic bus: a dedicated fibre optic ring topology that eliminates Ethernet collision and provides deterministic sub-millisecond motion update rates across up to 96 servo axes per motion CPU. For Malaysian machine builders with existing SSCNET III/H infrastructure, MR-J4 is the correct specification - compatible with existing iQ-R and iQ-F motion CPUs, existing servo motor inventory, and existing MELSOFT engineering tools.
Mitsubishi MR-J5 servo drives are the current-generation upgrade - adding 26-bit absolute encoder resolution (16× improvement over MR-J4's 22-bit), CC-Link IE TSN (Time-Sensitive Networking) for sub-millisecond synchronised Ethernet motion across all connected devices, and EtherCAT slave capability for machines requiring EtherCAT master motion controllers. MR-J5 pairs with Mitsubishi HG-series motors (existing inventory) and the new HK-series motors optimised for MR-J5 performance parameters. Malaysian machine builders transitioning to MR-J5 gain improved cycle time performance on high-speed semiconductor and electronics assembly applications.
Technical Specifications
Power range: 0.05 kW (50W) to 55 kW across both MR-J4 and MR-J5 series. Low-power range (0.05-0.75 kW) covers compact servo axes on labelling, small packaging, and test equipment. Mid-range (1-7.5 kW) covers the majority of Malaysian machine builder applications. High-power (11-55 kW) addresses large CNC axes, robot joints, and heavy-duty transfer press feeders.
Encoder resolution: MR-J4: 22-bit absolute (4,194,304 counts/rev). MR-J5: 26-bit absolute (67,108,864 counts/rev). At 3,000 rpm maximum speed, MR-J5 provides position update resolution of 67 million count positions per revolution - enabling 0.000005° theoretical resolution per encoder count, meaningful for Malaysian semiconductor die bonding and precision assembly applications.
Peak torque: Both MR-J4 and MR-J5 deliver 300% peak torque for 3 seconds - standard servo system specification for acceleration from standstill on Malaysian machine cycle applications.
Communication: MR-J4 supports SSCNET III/H fibre optic (262 Mbps, dedicated motion network) and CC-Link IE Field (1 Gbps Ethernet, shared network). MR-J5 supports CC-Link IE TSN (1 Gbps Ethernet with hardware timestamp synchronisation, IEEE 802.1AS time synchronisation) and EtherCAT slave. CC-Link IE TSN enables mixed network traffic - motion control and I/O data on the same Ethernet network, simplifying Malaysian panel wiring for large multi-axis machines.
Ambient operating temperature: 0-55°C ambient. At Malaysian factory ambient temperatures of 28-35°C, servo drives at continuous rated current generate internal heat requiring enclosure ventilation calculation. Derating applies above 40°C ambient - verify enclosure ventilation airflow against the MR-J4/J5 derating curve at maximum ambient temperature.
MR-J4 vs MR-J5: Selection Guide for Malaysian Buyers
Specify MR-J4 when: (1) Existing Malaysian machine uses SSCNET III/H motion network and MR-J4 compatibility with current iQ-R/iQ-F motion CPU is required. (2) The application does not require 26-bit encoder resolution - 22-bit MR-J4 suffices for repeatability above 0.001°. (3) Budget sensitivity favours the established MR-J4 platform where MR-J5 performance improvements are not application-critical.
Specify MR-J5 when: (1) New machine build where CC-Link IE TSN network architecture is adopted - MR-J5 provides the latest Mitsubishi motion network capability. (2) High-speed precision applications (semiconductor die bonding, high-speed labelling, electronics insertion) where 26-bit encoder resolution reduces settling time and improves positional accuracy. (3) Machines requiring EtherCAT compatibility alongside Mitsubishi PLC - MR-J5 EtherCAT slave mode enables integration with non-Mitsubishi EtherCAT master motion controllers.
Applications in Malaysian Manufacturing
CNC machining - Mitsubishi CNC platforms (M800S, M80V series) in Malaysian job shops and component manufacturers use MR-J4/J5 servo drives as native axis drives on X/Y/Z and rotary axes, connected via SSCNET III/H. Flextech stocks MR-J4 models matched to Mitsubishi CNC standard axis drive specifications.
Automotive Tier 1 assembly (Shah Alam, Rawang, Johor) - robotic welding positioners, transfer press feeders, and screwing station index tables in Malaysian automotive plants use MR-J4 via SSCNET III/H connected to iQ-R Motion CPUs. Multi-axis synchronised motion on 8-32 axis machines is standard in Malaysian automotive assembly cell installations.
Semiconductor and electronics (Penang, Kulim) - pick-and-place delta robot drives, die bonding axes, and flip-chip placement systems use MR-J5 with 26-bit encoder for sub-micron position accuracy in Malaysian OSAT facilities and electronics ODM plants.
Packaging machinery - Malaysian packaging OEM machine builders specify MR-J4 servo systems on form-fill-seal registration drives, labelling servo axes, and cartoning index drives where established SSCNET III/H infrastructure reduces commissioning risk on new machine builds.
Genuine OEM vs Grey-Market Mitsubishi Servo Drives
Grey-market Mitsubishi servo drives - including MR-J4 and MR-J5 parallel imports - are documented in the Malaysian market. Grey-market units may appear identical to genuine OEM but lack valid serial number registration for Mitsubishi Electric Malaysia warranty service and technical support. Genuine Mitsubishi servo drives purchased through Flextech carry Mitsubishi Electric hologram authentication, valid serial number registration, CE marking, and Mitsubishi Electric Malaysia direct service eligibility.
Indicative Pricing
| Power Range | Price Range (MYR) - MR-J4/J5 |
| 0.05-0.75 kW | RM 3,500-6,500 |
| 1-3.5 kW | RM 5,500-12,000 |
| 5-11 kW | RM 12,000-28,000 |
Prices are order-of-magnitude estimates. Motor pairing affects total system pricing. Contact Flextech for current quote on specific drive and motor combination.
How to Order
Flextech provides Mitsubishi servo drive quotations within 24-48 hours. Provide the MR-J4 or MR-J5 model number or application parameters: power rating, servo motor series, communication interface (SSCNET III/H or CC-Link IE TSN), and brake/holding requirement. Flextech confirms drive-motor compatibility, current pricing, and delivery schedule.
For the parent servo drive category, see [servo drives Malaysia](/product-category/servo-drive/). For Panasonic servo drive alternative, see [Panasonic servo drive](/product-category/servo-drive-panasonic/). For servo motor pairing, see [servo motors](/product-category/servo-motors/).
Mitsubishi Servo Drive FAQ
What Mitsubishi servo drive series does Flextech stock?
Flextech stocks Mitsubishi MELSERVO MR-J4 and MR-J5 series, 0.05-55 kW. MR-J4 uses SSCNET III/H and CC-Link IE Field. MR-J5 uses CC-Link IE TSN and features 26-bit encoder resolution.
What servo motors are compatible with Mitsubishi MR-J4 and MR-J5?
MR-J4 pairs with Mitsubishi HG-KR, HG-SR, HG-RR, HG-JR motors. MR-J5 pairs with HG-series and HK-series motors. Mitsubishi drives are not compatible with other OEM servo motors.
What is the encoder resolution difference between MR-J4 and MR-J5?
MR-J4: 22-bit absolute (4.2M counts/rev). MR-J5: 26-bit absolute (67M counts/rev) - 16× higher position resolution than MR-J4.
Can MR-J5 connect to Mitsubishi iQ-F PLCs?
Yes. MR-J5 connects to iQ-F CPUs via CC-Link IE TSN with LD77MS simple motion modules for position, velocity, and torque control from the PLC.
What is the price range for Mitsubishi servo drives in Malaysia?
MR-J4/J5 at 1 kW reference: approximately RM 5,500-9,500 for standard networked models. Contact Flextech for current quote on specific power ratings.