Electric nutrunner E8MCB3C-480

straightwith torque controlwith brushless DC motor

Overview
Brushless electric nutrunner designed and built entirely by Fiam in Italy for automatic machine use and Industry 4.0 applications. Modular construction for safe maintenance management. Integrated electronics and compact form factor.

Main benefits (when combined with E-TCS control unit)

• High flexibility in managing assembly processes
• Full traceability of assemblies (Industry 4.0)
• High tightening accuracy
• Multiple control/monitoring modes for torque, angle and time tightening
• Cost reduction through lower scrap rates
• Easy integration into production lines
• Each tool and control unit can be programmed for different assemblies with specific torque, speed and process parameters

Designed for industrial automation

• Thrust bearings sized to withstand slide forces in automated cycles
• External geometries suitable for machine mounting along the aluminium body
• Centering system for reliable performance in vertical and horizontal axes
• Long-term gear efficiency certified by laboratory testing

Features

• Tightening torque detected from motor current measurement; angle measured by integrated encoder
• Status LED to check tightening cycle result directly on the tool
• Compact design for installation on single/multiple units and robots
• ESD certified
• This model supplied without axial compensator
• Mounting flange included
• Connection cable ordered separately; various lengths available, including 90° connector
• Optional versions: offset device, axial compensator, modified flange or custom body, angled head

Features of E-TCS control unit
Controls all functions of the connected E MCB electric tightening tool, enabling advanced programming and precise control of each phase with real-time visualization on the color touch screen.

Visualizations

• Complete visualization of the tightening process
• Instant display of torque, angle and time
• Graphical visualization of tightening data
• Tightening result indication via display color change and tool-mounted light signals
• Last 200 tightening log records
• Last 200 tightening diagrams

Programming

• Poka-yoke programming directly on the color touch screen
• 100 configurable Jobs recallable by operator
• 100 configurable Tasks per Job
• 12 configurable Steps per Task
• WIZARD programming of tightening strategies guided from Job to Step
• Programming screens available in English and Italian
• I/O test screens to force inputs/outputs for diagnostics and commissioning

3 Tightening Strategies (settable within Steps)

• Torque Control – Angle Monitoring (TC‑AM)
• Angle Control – Torque Monitoring (AC‑TM)
• Torque and Angle Control (AC and TC)

Other tightening cycle controls

• Tightening with clockwise or counterclockwise rotation
• Minimum/maximum torque control
• Minimum/maximum angle control
• Minimum/maximum time control
• Threshold torque for angle reading and monitoring
• Real-time calculation of Cm and CmK
• Screw counting and programmable max re-tighten attempts for NOK screws
• Configurable loosening speed and direction
• Speed reduction during tightening with configurable final torque/speed (downshift)
• Dwell time to maintain torque for adjustable duration
• Adjustable acceleration ramp duration

Data storage and export

• Tightening logs exportable via Fieldbus (PROFINET, MODBUS TCP, ETHERNET/IP)
• Import/export of tightening programs
• Data storable on SD card; system can handle over 1 million tightenings

Other features

• Automatic recognition of connected tool and parameters
• I/O connector: 8 inputs / 8 outputs, freely programmable
• Fieldbus port for common fieldbus systems
• USB port for firmware updates and import/export of parameters and logs
• SD port for programs and logs; removable for backup
• Multiple authorization levels protected by password (up to 4 users)
• Power cable; integrated date and time clock; 120V~230 Vac ±10% 50‑60 Hz

Dimensions (mm)
Key dimensions: A = 214.5; B = 18.5; C = 194; D = 98.5; Ø = 32

Applications

• For tightening threaded elements in single or multi-spindle units, automated assembly lines, rotary table machines, fastening slides, electronic axes or anthropomorphic robots
• Industrial production environments requiring high flexibility and traceability; adaptable to variable batch sizes and screw types

Technical specifications

• Model: E8MCB3C-480
• Code: 111619021
• Tightening torque (Nm): 0.35 ÷ 3.5
• Free speed (rpm): 480
• Accessory drive: 1/4 in square drive
• Axial compensator: Without
• Control unit to use: E-TCS
• Dimensions (mm): L 214.5 x Ø 32
• Nutrunner motor type: Electric brushless
• Reversibility: Reversible
• Starting system: Programmable
• Tightening technologies: Torque/angle by current detection
• Power supply type: Electric
• Weight (Kg): 0.52