Mitsubishi Electric
Mitsubishi MR-J4 Servo Amplifier
Model: MR-J4-70A
4-hour response · Pricing in SAR · Delivery across all KSA regions
Mitsubishi MR-J4 Servo Amplifier
The Mitsubishi MR-J4 Servo Amplifier is the fourth generation of Mitsubishi Electric's industry-standard MELSERVO platform, providing precision servo drive capability from 0.05 kW to 55 kW with a response frequency bandwidth of 2.5 kHz — sufficient for the most demanding Saudi manufacturing applications involving high-speed positioning, high-dynamic torque control, and electronic synchronisation. The MR-J4 supports three control modes — position, speed, and torque — switchable on-the-fly during operation, and interfaces with SSCNET III/H (high-speed fibre optic serial communication) for direct connection to MELSEC iQ-R and MELSEC Q motion CPUs at 0.444 ms to 3.5 ms communication cycle times. The built-in STO (Safe Torque Off) function is certified to SIL 2 / PLd and eliminates external safety relay hardware in most machine guarding circuit designs.
The MR-J4's one-parameter tuning function uses an adaptive algorithm that automatically measures the machine's moment of inertia and mechanical resonances during commissioning and continuously adjusts control gains in real time — enabling high-bandwidth servo response on machines with flexible coupling, long ball-screw mechanisms, or variable load inertia without specialist servo commissioning knowledge. Mitsubishi's advanced vibration suppression technology (up to 4 resonance frequency filters) extends the effective servo bandwidth on real machines beyond what the basic response speed specification suggests. The MR-J4 also incorporates a position deviation monitor and an electronic gear function that supports gear ratios from 1/1000 to 1000 — enabling direct drive of load devices without physical gearboxes in applications where reflected inertia permits.
In Saudi Arabia, the MR-J4 is the predominant servo amplifier in machine tool, packaging automation, and industrial robot system integrations. Saudi machine builders developing local CNC machine tools under the Vision 2030 industrial localisation programme specify MR-J4 servo drives for axis control, where the SSCNET III/H network achieves multi-axis position synchronisation error of less than 1 μm on a 3-axis system. SABIC and Aramco equipment departments specify MR-J4 for precision chemical dosing pump servo drives, bottle filling machines, and labelling and inspection stations on process lines. The availability of Saudi Aramco approved vendor documentation for MR-J4 simplifies procurement for Aramco project contractors.
Razz Middle East maintains full MR-J4 stock across the 100W to 5kW range, together with matching HG-KR, HG-SR, and HG-RR servo motors, at our Riyadh warehouse. Our servo engineers provide axis commissioning and one-parameter tuning services on Saudi customer sites, supported by MR Configurator2 software and oscilloscope diagnostics. SAR project pricing for complete servo axis packages (amplifier + motor + cable) is available within 4 hours.
Technical Specifications
Full specifications for the MR-J4-70A
- Power Range
- 0.05–55 kW
- Response Frequency
- 2.5 kHz bandwidth
- Control Modes
- Position / Speed / Torque (switchable)
- Network
- SSCNET III/H (0.444 ms–3.5 ms cycle)
- Safety
- STO SIL 2 / PLd
- Electronic Gear
- 1/1000 to 1000 ratio
- Tuning
- One-parameter adaptive auto-tuning
- Vibration Suppression
- Up to 4 resonance frequency filters
Key Features & Benefits
- 2.5 kHz response bandwidth with SSCNET III/H network at 0.444 ms cycle achieves multi-axis synchronisation error below 1 μm, meeting Saudi CNC machine tool and electronic gearing requirements.
- One-parameter adaptive auto-tuning automatically measures machine inertia and resonances, enabling high-bandwidth servo commissioning without specialist servo engineer knowledge.
- Built-in STO SIL 2 / PLd eliminates external safety relay hardware in machine guarding circuits, meeting CE Machinery Directive and Saudi industrial safety requirements.
- 4 resonance frequency filters suppress mechanical vibrations on flexible coupling and long ball-screw mechanisms, extending effective servo bandwidth on real Saudi machine installations.
- Electronic gear function (1/1000 to 1000 ratio) enables direct drive of load devices without physical gearboxes on suitable applications, reducing mechanical complexity and maintenance.
- Position deviation monitor detects mechanical faults (e.g., coupling failure, overload) in real time, triggering protective shutdown before mechanical damage occurs.
Industrial Applications in Saudi Arabia
- Saudi Vision 2030 CNC machine tool axis drives, where SSCNET III/H multi-axis synchronisation at 0.444 ms achieves sub-micron position accuracy on X/Y/Z axes.
- Packaging machine servo axes in Saudi MODON food and consumer goods factories, where one-parameter tuning enables rapid commissioning without specialist servo engineering expertise.
- SABIC and Aramco precision chemical dosing pump servo drives, where torque control mode provides constant flow rate independent of system pressure variations.
- Bottle filling and capping machine servo axes in Saudi pharmaceutical and beverage plants regulated by SFDA, where position accuracy ensures consistent fill volumes.
- Automotive component manufacturing robot and fixture servo axes in Saudi industrial parks, where high dynamic response and SSCNET III/H synchronisation deliver production cycle time targets.
Industrial Supplier in Saudi Arabia
Get a Quote for the Mitsubishi MR-J4 Servo Amplifier
We respond within 4 business hours. Send model MR-J4-70A for competitive pricing in SAR with delivery across Saudi Arabia and the GCC.
Frequently Asked Questions — MR-J4-70A
Common questions from buyers in Saudi Arabia and the GCC
What is the Mitsubishi MR-J4 Servo Amplifier (MR-J4-70A) and what is it used for?
The Mitsubishi MR-J4 Servo Amplifier is the fourth generation of Mitsubishi Electric's industry-standard MELSERVO platform, providing precision servo drive capability from 0.05 kW to 55 kW with a response frequency bandwidth of 2.5 kHz — sufficient for the most demanding Saudi manufacturing applications involving high-speed positioning, high-dynamic torque control, and electronic synchronisation. The MR-J4 supports three control modes — position, speed, and torque — switchable on-the-fly during operation, and interfaces with SSCNET III/H (high-speed fibre optic serial communication) for direct connection to MELSEC iQ-R and MELSEC Q motion CPUs at 0.444 ms to 3.5 ms communication cycle times. The built-in STO (Safe Torque Off) function is certified to SIL 2 / PLd and eliminates external safety relay hardware in most machine guarding circuit designs.
Where can I buy the Mitsubishi Electric MR-J4-70A in Saudi Arabia?
Razz Middle East supplies genuine Mitsubishi Electric products including the Mitsubishi MR-J4 Servo Amplifier (MR-J4-70A) across all regions of Saudi Arabia — Riyadh, Jeddah, Dammam, Al Khobar, Jubail, Yanbu, Mecca, and Medina. We maintain local stock on fast-moving items and can source specialist configurations. Request a quote on this page for same-day pricing.
How do I get the best price for the MR-J4-70A in KSA?
Click "Request Free Quote" on this page or message us the model number MR-J4-70A on WhatsApp. Our technical sales team responds within 4 business hours with a competitive price in SAR, confirmed stock availability, and delivery lead time — with no hidden charges or handling fees.
Is Razz Middle East an authorized Mitsubishi Electric supplier in Saudi Arabia?
Razz Middle East is a specialist industrial equipment supplier in Saudi Arabia focused on Mitsubishi Electric and other leading global brands. We supply 100% genuine OEM products backed by full manufacturer warranty, serving the oil & gas, petrochemical, power generation, water, construction, and manufacturing sectors across the Kingdom.
What is the delivery lead time for the Mitsubishi MR-J4 Servo Amplifier in Saudi Arabia?
In-stock items typically ship within 24-48 hours to Riyadh, Dammam, Jeddah, and the Eastern Province. Project orders and non-standard configurations generally take 2-6 weeks. Contact us with the exact model number MR-J4-70A for a precise availability confirmation and delivery date.
Can the MR-J4-70A be supplied for ARAMCO, SABIC, or NEOM projects in KSA?
Yes. Razz Middle East has experience supplying Mitsubishi Electric equipment to major industrial projects and EPC contractors across Saudi Arabia. We can provide full technical documentation, Material Inspection Reports (MIR), and certificates of conformity to meet vendor approval requirements. Contact our project team to discuss your specific project requirements.