Project Description

TDG90 Line Boring

Modular design, most compact,portable line boring machine, used for repair holes in cranes, excavators,bulldozers, tractors, backhoes etc.

Boring Dia: 95 – 700mm,Boring Stroke: 900mm


  • Quick set adjustable clamping jaws
  • Swivel toolpost for grooves and bevels
  • Continuous groove geared facing and boring feeds

TDG90 line boring has strong working capacity from Ø95mm to 700mm , bar length can be reach to 8000mm, now, it is adopted by many mining machinery manufacturers for the workshop production of large steel structure…

Compact and modular design

Rotational drive unit and feed unit can be mounted anywhere of the boring bar , more portable, step less speed regulation range 0 to 0.5mm, easily achieve the forward and reverse exchange.

Boring bar

High-quality alloy structural steel, high strength, boring bar’s length can be up to 8 meters.

Mounting kit

Four type mounting kit can be selected: double arms, three arms, ID mounting , adjustable ID mounting .

Drive Power Unit

Two kinds of power unit: servo and hydraulic, torque of hydraulic power unit can reach to 1420N.M.

Superior scalability

  • Optional attachment of taper boring, to achieve processing of different taper holes 1:12 and 1:20.
  • Two sizes of facing head to achieve facing machining.

All parts have their own unique advantage and provides guarantee for steady and accurate operation for the whole system.

Boring Diameter 95 – 700mm
Boring Stroke 600mm、900mm
Feed Rate 0-0.5mm/rev
Bar R.P.M 0-45(standard)
Bar Dia 90mm
Bar Length 2000/2500/3000/3500/4000/5000/6000mm(standard)
Drive Power Unit
           Hydraulic 25HP(standard)
           Servo 5HP(optional)
Facing Head (1) 120-450mm
Facing Head (2) 250-850mm
Mounting Kit Double arm、Three arm、ID mounting