• Head20-16 Higashi-kojiya 1-chome, Ota City, Tokyo 144-0033 Japan
  • Branch5-24 Tawaradai 9-chome, Shijounawate, Osaka 575-0013 Japan


LR-Series

LR-SeriesLR-Series

LR-Series

The nut tapping machine specialized for fabrication of long works such as high nuts, color nuts, etc., that cannot be fabricated with a bent shank nut tap, as well as large diameter / thin type hexagon nuts.
The designated straight tap is used. By adding the process to take out the completed nut from the tap for each screw cutting, the continuous automatic fabrication process became possible without switching normal / reverse operation.
Because an independent motor is mounted on each shaft, independent operation on the respective shafts is possible.
The screw cutting failure detection mechanism using sequencer control is mounted as the standard. The operation similar to that of the NA series is possible on the touch panel.

Select by shape of nut

LR nut
LRナット
LR-Series
Range of screw processing
LR-120 (150) M8~M20
LR-120CB M12~M45
LR-30 M4~M8

LR-Series

LR-Series
Model LR-120 (150) LR-120CB LR-30
Range of screw processing M8 ~ M20
Nut L size 105mm (125mm)
M12 ~ M45
But, thick diameter screws:P0.5 to 1.0
M4 ~ M8
Nut L size 30mm
Nut tapping style Biaxial slide air system
Spring pushing type
Work fixing method Lever type hydraulic chuck guide CB type clamp guide Hydraulic chuck guide or CB type clamp guide
Shape of tap used
(Straight tap)
L450mm (L580mm) L350mm L210mm
Tap replacement style Lift-up type
(Mouthpiece weight open / close)
Lift-up type
(Mouthpiece weight open / close)
Work feeding style Parts feeder or dedicated conveyer Parts feeder
Stroke setting for main shaft rotation & screw thread cutting Preset type (the number of threads setting)
Digital panel meter or touch panel
Main shaft motor spec. Induction motor x2
2.2 or 3.7kW (3 phase / 4P)
Induction motor or Gear motor x2
3.7 or 5.5kW (3 phase / 4P)
Induction motor x2
0.75 or 1.5kW (3 phase / 4P)
Main shaft rotation range 500~1500rpm
(2.2kW motor)
300~1000rpm
(3.7kW motor)
500~1500rpm
(Induction motor)150~600rpm
(Gear motor)
950~2500rpm
Main shaft control method Inverter
Coolant pump
(Dip type coolant pump)
400W (3 phase/2P) 250W (3 phase/2P)
Hopper driving motor *
Chip separator Induction motor 25W
(3 phase/4P)
Hydraulic unit 1.5 KW (3 phase/4P)
Max. using pressure 3.5 Mpa 3.5MPa
0.75 KW (3 phase/4P)
Max. using pressure 3.5 Mpa 3.5MPa
Control device Sequencer / Touch panel
Production counter Touch panel
(Tap lifetime / total count)
Failure detection items Chamfer failure / clogging / empty / doubling / reamer torque
Other remarks Max. shaft diameter: 30 mm
Max. flange diameter: 50 mm
Max. shaft diameter: 30 mm
Max. flange diameter: 50 mm
Max. flange diameter: 30 mm
Max. shaft diameter: 20 mm
Main replacing parts Hydraulic chuck / mouthpiece / weight contact board / tap holder / chip guard Chute / chuck fixing board / nut fastening clamp / mouthpiece / weight contact board / tap holder / chip guard Chute / hydraulic chuck / mouthpiece / nut sending pin / tap holder / chip guard
Cutting lubricant tank capacity 160L (180L) 160L 110L
Machine size 1230mm×1600mm
×H1900mm
(1230mm×1860mm
×H1900mm)
1230mm×1600mm
×H1900mm
920mm×1520mm
×H1700mm
Machine weight 1650kgs (1750kgs) 1650kgs 1000kgs
Other standard functions *
Options / others *
Production volume per minute (for reference) 4 to 12 piece / One axis 2 to 6 piece / One axis 4 to 10 piece / One axis

Please do not hesitate to contact us
if you have any questions about products.

  • HeadTel.03-3743-5321 / Fax.03-3744-5253

    20-16 Higashi-kojiya 1-chome,
    Ota City, Tokyo 144-0033 Japan

  • BranchTel.0743-70-1301 / Fax.0743-78-1505

    5-24 Tawaradai 9-chome,
    Shijounawate, Osaka 575-0013 Japan