ESTIC Servo Nut Runner


    • Compact unit design based on the idea of space-saving installation enables downsizing of fastening machine
    • Combining high speed high response servo motor and state-of-the-art control technology realize the most suitable balance of fastening accuracy and fastening speed
    • Adopting newly designed gear sustains high durability
    • Complied with EC Directive
    • Manufacturing in accordance of ISO9001
    • Fastening accuracy 3σ/x̄  ≤ 2% F.S.
    • Self diagnosis functions built in to prevent fastening failures
    • Various Fieldbus options (DeviceNet, Profibus-DP, Profinet, CC-Link, EtherNet/IP)


Servo Nutrunner: Z50SERVO NUTRUNNER

Tool Unit

  • Wide coverage of tool types enable wide variety of fastening
  • Tool units has covered 0.5 to 1500 N m torque range
  • Improvement of durability by adopting resolver for angle encoder
  • Available on Bent type, Angle head, single cable as options
Straight type


Control Unit

AXIS Control Unit / ENRZ-AU50R

AXIS Control Unit is designed to run and control single spindle, and it enables to structure a simple system configuration.
Master link connection enables max. of 31 spindles system.

  • 7 types of fastening strategies such as Torque control, Angle control are equipped as standard functions to make fastening flexible for various kinds of joints.
  • Various monitoring functions such as Torque rate judgment, Zone judgement detect abnormal fastening and improve productivity.
  • Fastening history (Max. of 5115 records), System error history (50 records) help to analyze the causes of fastening troubles



Control Power Supply    Single Phase AC200-230V ±10% 50/60 Hz
Main Power Supply    Single Phase AC200V-230V±10% 50/60 Hz    Three Phases AC200-230V ±10% 50/60Hz
Display and Operation Panel    5 Characters x 1 line 7 segments LED Display, Function Button (5)Display Lamp (OK/ALM/NG)
Number of Programs    99 programs
NET Port    RS485 x 2 ports (Max. Spindles 31)
External Communication Port    RS-232C x 1 port (9600bps-115.2Kbps selectable)
Data Memory    System parameters, Fastening parameters, Fastening history data, System error history, Torque curve   data
Self Diagnosis Function    45 items: Zero point, CAL, Parameter, Sensors, Overload, Overheat, etc
Outer Dimensions (mm)    W74xH255xD205    W87 x H255 x D205 W116.2xH274.5xD205
Weight (kg)    2.5 3.2 3.4 3.5
Master Control Unit / ENRZ-MU50
High speed and high expandability unit

Multi-spindle is easily structured with simple sequence program and without complicated PLC logics and various functions equipped on the unit which helps high grade fastening

  • Sequenced program is adopted (99 programs x 20 steps)
  • Work Group (Max. of 4 groups) enables simultaneous controls for each group on one machine
  • Various Fieldbus options are available (DeviceNet, Profibus-DP, CC-Link, EtherNet/IP, Profinet)



Power Supply Specifications    AC100V-230V ±10% 50/60Hz 80W
Display and Operation Panel    6 Characters x 2 lines, 7 segments LED Display, Staus Lamp (ST1, ST2, ST3, ST4),
   Function Button (6)
Max. Spindles    31 Spindles (AU50: 30 units, SPU50: 10 units, total max. of 31)
Max. Programs    99 programs
External Communication Port    RS-232C (PC Data output, Serial Printer)
   PANEL Connector (Touch Screen connection RS-422 port)
   PLC (PLC connection RS-232C/RS-422 port)
   NET1 connector (Local Axis connection RS-485 port)
   COM connector (RS-422:available in the future)
   ETHERNET (Ethernet connection port 10/100BASE-T)
   PC-USB (Management Software connection USB port)
   FIELDBUS(DeviceNet, Profibus, Profinet, CC-Link,Ethernet/IP connection port: option)
Memory Functions    Fastening program, Pressing parameter, System parameter, I/O allocation
   Fatstening Result Item allocation, Fastening Result History,
   System Error History (CF Card backup)
Data Memory    Fastening Result History, Pressing Result History
   (Max. of 20,000 records: differs depending on result item selected)
   Torque curve history, Press curve history
   (Max. of 50 records: differs depending on the settings)
   System error history (Max. of 200 records)
External Memory    Fastening history, Pressing history, other parameters uploading to USB flash drive
Outer Dimensions (mm)    W83 x H225 x D206
Weight (kg)    2.7