PB250 Line Boring Machine

Item número.: PB250
Line Boring Machine PB250

Boring Range: Boring Range:  Ø300mm- Ø 2300mm

Boring Bar: Ø22x2000/3000/4000/5000mm/6000/7000/8000mm
Product Name: Line Boring Machine PB250
  • The PB Series line boring machine consists of boring rod, main axis box, feeding box
power unit, support, end surface machining parts, milling parts, etc. consists of boring rod, axial rotational drive unit, servo motor, feeding box power unit, supports, facing head assembly machining parts, boring tools, etc. Impact structure, easy  to  operate,  install  and dismantle.
  • Processing and repairing of pipe inner hole, engineering machine, small scaled ship fixed hole, ship axis hole, etc. Processing and repairing of pump body, valve , turbine holes, etc. providing services for many fields, such as mining, marine engineering, shipping, petrol, electric power, etc.
  • Impact structure, easy to operate, install and dismantle.
  • High-strength alloy steel boring rod and accurate transmission structure can guarantee the accusation and efficiency of processing.
  • High-accurate spherical roller bearing is used in supporting seat, enabling quick installation
and adjustment of machine before machining.
  • Vertical, horizontal or tilt installation can be chosen.
  • Power unit includes electrical and hydraulic power, equipped with remote control box, which make much more convenience.
  • Many kinds of machining can be achieved with appropriate parts, such as boring, end surface machining, drilling, expanding hole, blind hole boring, etc.
Standard Accessories:
  • Rotational drive unit
  • Feeding unit
  • Boring bar
  • Screw lead
  • Mountings (single arm or double arms mountings or others )
  • Japan NSK Self-aligning bearing installing supports
  • Center support
  • Tool heads for holes from 180mm-1200mm
  • Cutter tools
  • Japan servo motor and high precision speed reducer (electric power)
  • Hydraulic power and all its system (hydraulic power)
  • Electric cabinet
  • Remote controller
Technical data:
Model PB250
Boring bar Φ250mm
Length of boring bar 2000/3000/4000/5000/6000/7000/8000/9000mm
Boring diameter range Φ300mm-Φ2300mm (recommend) 
End face range: Φ360mm-Φ2500mm
Boring   bar    speed 0~54rpm or 1-162 rpm (stepless)
Feeding 0.180.26mm/r two steps
Max.cutting depth 3mm
0.03mm ( when the hole diameter 300mm)
0.04mm ( when the hole diameter 500mm)
  0.1mm ( when the hole diameter 1200mm)
Hole taper
0.03mm/ ( when the hole diameter 500mm)
0.04mm/ ( when the hole diameter 500mm)
  0.1mm ( when the hole diameter 1200mm)
Surface roughness Ra3.2