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Robot hand

3-jaw parallel gripper NTB series

New 3-jaw parallel gripper with through-hole

NTB seriesズーム

NTB series

  • Swarf protection and maintenance improved
  • High gripping force for stable gripping of heavy work piece
  • Lightweight and compact body not limiting load capacity of robot
  • New mounting style for smaller protrusion compared with conventional models
  • Improved gripping accuracy due to highly rigid body

How to order

NTB series
  • Please install a check valve in the air-pressure circuit so that the gripper will not release a workpiece even if the air pressure drops down.

  • When the jaw stroke is detected by the reed switches, mount reed switched on the grooves on the outer periphery of the product. Up to 4 reed switches can be mounted.

  • In case proximity switches are used for direct detection of jaw stroke, please purchase proximity switch brackets additionally.

Specifications

Model Jaw Stroke
Diameter
(mm)
Through-hole
Diameter
(mm)
Gripping Force (Note 2) Repeatability
(mm)
Mass
(kg)
Air
Consumption
per
reciprocating
(cm3)
Air pressure
(MPa)
Operating
Temperature
(℃)
Measurement
Distance (Note 1)
L(mm)
OD Gripping
(N)
ID Gripping
(N)
NTB309 12 14.3 10 1110 1270 ±0.015 0.70 38.0 0.2~0.8 5~60
NTB311 16 25 20 1510 1750 ±0.015 1.20 80.4 0.2~0.8 5~60
NTB313 20 29.9 20 3580 3750 ±0.015 2.10 190.1 0.2~0.8 5~60
NTB317 25 50 20 7440 9000 ±0.02 7.50 465.1 0.2~0.8 5~60
  • The measurement distance is the distance from the top surface of the master jaw to the gripping centre.
  • Value at supply air pressure 0.6 MPa.

    Option

    Gripping force

    Click the model number and the gripping force diagram will be displayed. The gripping force, F is a product of the actual gripping force per jaw, F1 and the number of jaws

    NTB309
    NTB311
    NTB313
    NTB317
    • NTB309
    • NTB311
    • NTB313
    • NTB317

    Drawing download

    Model Drawing download
    NTB309 PDF DXF 3D
    NTB311 PDF DXF 3D
    NTB313 PDF DXF 3D
    NTB317 PDF DXF 3D
    NTB309-B (Proximity Switch Bracket) - - 3D
    NTB311-B (Proximity Switch Bracket) - - 3D
    NTB313-B (Proximity Switch Bracket) - - 3D

    *Proximity switch cannot be used for NTB317.

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