NACHI Robot Full Series

NACHI Industrial Robot Full Series Technical Analysis: High Speed, High Precision, and Diversified Automation Solutions

Introduction: The Path of Robot Innovation for Half a Century

Since becoming Japan's first industrial robot manufacturer in 1968, NACHI-FUJIKOSHI has continuously launched robot products that integrate excellent technology and innovative capabilities, relying on its profound technical expertise in the fields of hydraulics and machine tools. After more than half a century of development, NACHI has established deep cooperative relationships with numerous automotive and general industrial enterprises around the world. Its robot products cover almost all industrial automation fields, from high-speed and high-precision small-scale operations to heavy material handling, from arc welding and spot welding to clean room handling, from palletizing to assembly and polishing.

This article is based on NACHI's latest product catalog, providing a comprehensive and systematic technical analysis of its robot series, controller technology, software ecosystem, and global service system. The aim is to provide a professional and detailed reference guide for automation system integrators, manufacturing enterprises, and engineering technicians.

Overview of Product Series and Application Fields

The NACHI robot product line is divided into multiple series based on functionality and application scenarios, covering four core areas: handling, palletizing, clean room, and welding. It also provides a wide range of option controllers and supporting software.

According to the application matrix table, the applicable processes for each series of robots include:

Machine tool loading and unloading, picking and placing, loading and assembly

Deburring/polishing, gluing and sealing

Bolt tightening, picking and palletizing, measuring and testing

Glass substrate handling (electronics industry)

Spot welding and seam welding (automotive and parts, metal processing, agricultural machinery, engineering machinery)

Die casting, resin molding, stamping operations, etc

The following will be unfolded one by one according to the series.

MZ series: High speed, high-precision, compact robots

The MZ series is NACHI's most representative small high-speed robot, known for its compact structure, high speed, high precision, and multiple installation methods. This series has a load capacity ranging from 1kg to 25kg, with a maximum working radius ranging from 350mm to 1882mm, and is available in 5-axis or 6-axis configurations.

2.1 Main Models and Performance Highlights

MZ07/MZ07P: Load 7kg, radius 723mm, repeat positioning accuracy ± 0.02mm. Body weight is only 36kg, power consumption 0.4kVA. Supports floor, wall mounted, inverted, and tilted installation. IP67 protection level (dustproof and waterproof), with rust proof/coolant resistant coating, suitable for harsh environments such as machine tool loading and unloading, deburring, etc.

MZ07L/MZ07LP: Long arm version, radius 912mm, load 7kg, also maintaining ± 0.02mm accuracy.

MZ10: Load 10kg, radius 723mm, same external dimensions and workspace as MZ07, but load increased to 10kg. IP67 equivalent.

MZ12: Load 12kg, radius 1454mm, accuracy ± 0.03mm.

MZ25: Load 25kg, radius 1882mm, accuracy ± 0.05mm, suitable for handling heavier workpieces.

CZ10: Load 10kg, radius 1300mm, accuracy ± 0.1mm, IP54 protection.

2.2 Technical Features

Internal wiring: The tool cable is completely embedded in the robot arm, greatly improving cable reliability and allowing for operation in narrow spaces.

Wide homework range: Improve productivity and can be paired with visual sensors to achieve high specification applications.

Dustproof and anti drip design: Models such as MZ07/10 achieve IP67 equivalent and provide rust proof and coolant resistant paint surfaces, suitable for cutting fluid splash environments.

Multiple installation directions: In addition to standard ground installation, it supports inverted, wall mounted, and inclined installation, making it easy to integrate into specialized equipment.

2.3 Safety Design

Some models of the MZ series (such as MZ07P) integrate dual security mechanisms:

Functional safety: Stop immediately upon detection of human contact.

Inherent safety: rounded arm design, optimized joint clearance to avoid injury to the human body. This design has been certified by ISO 10218-1 and TS 15066, and has received awards from certification bodies.

In addition, this series supports intuitive hand pulled teaching function, and operators can directly drag and drop the robot arm for programming, greatly reducing the difficulty of teaching.

EC Series: New SCARA Robot

The EC06 series is a horizontal multi joint (SCARA) robot launched by NACHI, with a simple structure, high speed, and high precision, designed specifically for applications such as assembly and handling.

3.1 Specification Parameters

Provide three maximum working radius options: 500mm, 600mm, and 700mm, with models EC06-5020, EC06-6020, and EC06-7020, respectively.

Number of axes: 4 axes (J1 rotation, J2 rotation, J3 vertical, J4 rotation)

Maximum load: 6kg (rated 3kg)

Allowable wrist moment of inertia: 0.05kg · m ² (rated 0.01kg · m ²)

J1/J2 maximum speed: 420 °/s/720 °/s; J3 vertical speed: 1100mm/s; J4 rotation speed 2660 °/s

Repetitive positioning accuracy: ± 0.02mm

Body weight: 17kg, power consumption 0.5kVA

Protection level: IP20 (for indoor use)

3.2 Structural advantages

The end shaft of the EC series adopts a hollow structure, and the trachea and cables can be directly connected from the inside of the robot to the tool without external wiring, significantly simplifying the design of complex fixtures and improving reliability and aesthetics.

EZ series: SCARA robot with vertical first axis

The EZ series is known as the "Wing Slicer Type" robot, and its most prominent feature is the vertically arranged first axis (J1 axis for vertical lifting), which saves installation space. At the same time, it retains the high-speed and high-precision characteristics of SCARA.

4.1 Main models

EZ02V6-02:6 axis, load 2kg (rated 1kg), radius 450mm, vertical travel 250mm or 150mm optional, IP20 protection, inverted installation.

EZ02F6-02: 6-axis, load 2kg, radius 550mm, ground mounted.

EZ03V4-02:4 axis, load 3kg (rated 2kg), radius 450mm, IP20, inverted.

EZ03F4-02:4 axis, load 3kg, radius 550mm, ground installation, IP20。

EZ03D: 4-axis, load 3kg, radius 450mm, IP65 equivalent (dustproof and waterproof), suitable for harsh environments.

4.2 Performance Parameters

J1 vertical speed: maximum 1400mm/s (250mm stroke)

J2/J3 rotation speed: 450 °/s/720 °/s

J4 rotation speed: 1200 °/s (4-axis) or 2400 °/s (specific model)

Repetitive positioning accuracy: ± 0.02mm (6-axis) or ± 0.014mm (4-axis)

Power consumption: 0.4kVA~0.6kVA

The internal wiring design of the EZ series also adopts a hollow structure to the end of the wrist, significantly improving the cable life. The compact vertical first axis allows it to be installed in narrow spaces, such as inside equipment or next to conveyor belts.

MC Series and MR Series: Multi purpose and 7-axis Flexible Robots

5.1 MC Series: Powerful and Compact Multipurpose Robots

The MC series is known for its high dust and water resistance, excellent performance, and full functional range, making it suitable for various production environments.

Main models:

MC10S/MC10L: Load 35kg, radius 2050mm/1260mm, accuracy ± 0.07mm, IP67 (wrist)/IP54 (body), power consumption 5.0kVA.

MC12S: Load 50kg, radius 1398mm, accuracy ± 0.06mm, power consumption 1.0kVA.

MC20: Load 70kg, radius 2050mm, accuracy ± 0.07mm.

MC280L/MC350: Heavy duty, load 280kg/350kg, radius 2771mm/3101mm, IP65 equivalent.

MC400L/MC600/MC700/MC1000DL: Super heavy, with a load of 400kg to 1000kg, a maximum radius of 3972mm, and a repeatability accuracy of ± 0.03 to 0.05mm.

The large models in the MC series adopt a simple structure without counterweights or parallel connecting rods (such as MC350), with compact arms and minimal installation space. Welding cables and hoses can be built into hollow arms to extend their service life.

5.2 MR series: 7-axis flexible robot

The MR series (MR35, MR50) has 7 degrees of freedom and can achieve complex movements through programmable postures, enabling flexible operations in narrow spaces that other robots cannot enter.

MR35: Load 35kg, radius 2050mm, J1-J6 speed 180-420 °/s, wrist allowable torque 160N · m, moment of inertia 16kg · m ², weight 745kg.

MR50: Load 50kg, radius 3106mm, wrist torque 210N · m, moment of inertia 30kg · m ², weight 1650kg.

The specially developed dedicated stamping arm accessory enables the MR series to achieve an 8-meter stamping cycle and high-speed horizontal movement of workpieces. High rigidity design and vibration suppression technology bring excellent speed performance.

Heavy duty handling and palletizing robot

6.1 MC Heavy duty Handling Series

The heavy-duty models in the MC series (MC280L, MC350, MC400L, MC600, MC700, MC1000DL) are designed specifically for tasks such as automotive body handling and heavy-duty casting. Its large wrist torque and wide operating range have opened up a new era of heavy lifting.

MC1000DL: Load 1000kg, radius 3756mm, accuracy ± 0.05mm, power consumption 19.3kVA, weight 9000kg.

SC700: Heavy duty handling, load 700kg, radius 3972mm, wrist torque 13800N · m, power consumption 7.0kVA.

6.2 High speed palletizing series (LP series)

The LP series is a specialized palletizing robot that excels at quickly completing large-scale movements. It can quickly stack cardboard boxes and bagged products (food, chemicals) onto pallets, with built-in rich stacking functions and support for multiple stacking modes.

Main models:

LP130-01/LP130F: Load 130kg, radius 3210mm, accuracy ± 0.03mm, power consumption 6.2kVA, weight 1150kg.

LP180-01: Load 180kg, radius 2771mm, accuracy ± 0.04mm.

LP210: Load 210kg, radius 3756mm, accuracy ± 0.2mm.

6.3 MC Series Stacking Heavy Edition

MC470P and MC500P are designed for 5-axis or 6-axis palletizing, with a load of 470kg/500kg, a radius of 2771mm/3756mm, and an accuracy of ± 0.2-0.3mm.

Cleanroom robot

NACHI provides ST-C series and SC400LC cleanroom handling robots for clean environments such as semiconductors and flat panel displays.

ST210TP-01:6 axis, load 80kg, radius 3101mm, repeatability ± 0.03mm, IP67 equivalent (wrist), power consumption 9.0kVA, weight 1660kg.

SC400LC: 6-axis, load 400kg, radius 3756mm, used for handling large glass substrates, cleanliness level meets ISO 14644-1.

Welding robot: SRA series

The SRA series is NACHI's advanced spot welding and arc welding robot, which significantly reduces cycle time with hollow arm structure, ultra-high speed, and vibration suppression technology.

8.1 SRA-H series (built-in cable spot welding)

SRA100HS/SRA100HB/SRA100H: Load 100kg, radius 1634-2044mm.

SRA133H/SRA133HL: Load 133kg, radius 2654-2951mm.

The welding gun cable is completely embedded in the hollow arm, improving cable reliability and increasing operation rate; A simpler appearance facilitates direct installation on assembly lines, improving the accuracy of offline programming.

8.2 SRA series (ultra high speed spot welding)

SRA100/SRA133/SRA166/SRA210/SRA240/SRA250: Load 100-250kg, radius 1634-2951mm.

Compared to existing models, the beat time has been reduced by 30%. Achieved through three major improvements: lightweighting, high rigidity, and high-speed control.

Compact design allows for high-density installation layout and easy maintenance (regular inspections and parts replacement are easier).

Reduce power consumption by 15% and minimize environmental impact.

Provide hollow arm version and bracket installation version (166kg/210kg).

8.3 Seam welding function

NACHI is the only company in the world that has successfully installed seam welding machines on robots. Seam welding is used for components that require airtight joints (such as car fuel tanks), where two roller electrodes rotate and are energized on the surface of the material to form a continuous weld seam. The robot seam welding kit can achieve high-speed and consistent seam welding on three-dimensional surfaces, and is equipped with various application functions such as electrode grinding and electrode wear compensation.

8.4 Other welding models

SRA166HT/SRA210HT/SRA210V, etc. are available in extended arm and high torque versions, with a load of 166-210kg and a radius of up to 3087mm, meeting special requirements such as welding inside the vehicle body.

Controller technology

NACHI offers multiple Windows based intelligent robot controllers for unified management of robots, additional axes, vision sensors, force sensors, and networks.

9.1 FD Controller (FD18)

Standard controller, suitable for most robots.

Controllable axis count: up to 6 axes (standard), extended to 8 axes.

Dimensions: 300 × 600 × 530 mm (with casters), can be installed side by side to save space.

Protection level: IP54 equivalent.

Power supply: 3-phase 200-220VAC, circuit breaker 40A, leakage current ≤ 100mA.

Environmental temperature: 0-45 ℃.

User interface: Teach Pendant with 5.7-inch VGA color touch screen, IP65 protection, weight 0.9kg, supports Japanese, English, Chinese, and Korean.

Additional axis: supports welding gun, slider, fixture, and turntable.

Fieldbus: DeviceNet, PROFIBUS, FL net, CC Link, etc., up to 4 channels.

Security monitoring function: PL d (Cat. 3) standard, optional PL e (Cat. 4).

Software PLC: Complies with IEC 1131-3 standard.

External storage: USB port (supports 1GB USB flash drive).

Optional: North American UL/CSA certification, European CE certification, voltage conversion transformer (380-480V).

9.2 CFD controller (MZ series only)

Compact controller, only 369mm wide, can be installed inside the robot base.

Controllable axis count: 6 axes, up to a maximum of 7 axes.

Appearance: 369 × 490 × 186 mm, IP20 protection.

Power supply: single-phase or 3-phase 200-230VAC.

Fieldbus: DeviceNet, PROFIBUS, EtherCAT, CC Link (EtherCAT/CC Link only serves as a slave).

Digital I/O: Maximum 64/64 points.

Security level: SIL3, PL e.

Supporting functions: visual sensor, force sensor, software PLC.

9.3 CFDL Controller (EZ Series Only)

Multi in one controller, one can control up to 4 EZ series robot units. Each unit has independent emergency stop and operation switches, and can also work synchronously.

Model: CFDL1-0000 (1 unit), CFDL2-0000 (2 units), CFDL4-0000 (4 units).

Appearance: Unit 1 version 369 × 490 × 186 mm; Unit 4 version 369 × 560 × 263 mm.

Power supply: single-phase or 3-phase 200-230VAC.

PCI slots: 2.

Fieldbus: Supports DeviceNet, PROFIBUS, EtherCAT, CC Link (slave).

Digital I/O: Maximum 64/64 points, relay unit 8 points.

Safety certifications: UL, CE, KCs.

Software and Support Tools

10.1 FD on Desk II (Offline Programming Simulation Software)

PC simulation and offline programming software, supporting NACHI's full range of robots.

Version: Pro version (requires authorized files or USB dongle), Regular version, Light version, Trial version.

Functions: Offline mode, monitoring mode, view mode, CAD program generation, multi controller application, saving shape files, etc.

It is possible to simulate robot operations before installation, create programs in advance, and achieve direct online operation.

10.2 User Task Function (Standard)

Allow parallel processing of computing tasks while the robot is operating, reducing cycle time. The teaching box screen can display various statuses.

10.3 Robot Monitoring Unit (RMU, optional)

The safety control unit monitors the position and speed of the robot. It can limit the working range of robots, reduce the size of safety fences, and lower costs and space requirements.

10.4 GUI Flex Gui (optional)

Customizable teaching box screen menu can be used as a system operation console to control peripheral devices.

10.5 Fieldbus support

DeviceNet (master/slave)

EtherNet/IP (master/slave)

EtherCAT (from)

CC Link (master/slave)

PROFIBUS (master/slave)

PROFINET (from)

10.6 Open NR-IF Development Environment

Provide C language and LabVIEW interface for system design and integration. Can be achieved:

Robot movement command indication

Obtain robot status (I/O signals, variables, offset values)

Real time observation, preventive maintenance, centralized monitoring software, etc.

Engineering Services and Global Support Network

NACHI provides full lifecycle services from installation and debugging to long-term maintenance:

Installation support: Skilled technicians assist in setting up, connecting, teaching, moving, and fully operating the production line.

Emergency response: Dedicated technical personnel quickly respond to urgent customer needs.

Remote support: Remote operation is achieved through online connection, and global experts provide precise support.

Spare parts supply: Each service center has key maintenance components on standby for quick delivery.

Regular inspection: Extend the lifespan of robots.

Overhaul service: Selective overhaul is provided based on the condition of the robots, and temporary replacement robots can be provided to maintain the operation of the production line.

Training courses: Provide robot operation, daily inspection, basic maintenance, and safety regulations training for operators.

The global subsidiaries cover the Americas (the United States, Canada, Mexico, Brazil), Asia (China, Thailand, Singapore, Vietnam, Malaysia, Indonesia, India, Taiwan, South Korea) and Europe (Germany, the United Kingdom, the Czech Republic, Türkiye), forming a perfect local service network.

Safety precautions

NACHI emphasizes that all documents (including operating instructions) must be read before using the robot. If the robot is used in situations that may endanger life or cause personal injury, it needs to be carefully evaluated and communicated with the sales representative. Operators should receive appropriate training. The robot images displayed in the catalog are for illustrative purposes, and safety fences and equipment must be installed in accordance with local laws and regulations during actual use.