BTA Deep Hole Trepanning Machine

BTA Deep Hole Trepanning Machine

This machine is used for cylinder workpiece center hole drilling and boring process. It is stable and with good processing accuracy....

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BTA Deep hole trepanning machine

Machine brief

Machine processing capability

Boring diameter range

50-500mm

Drilling diameter range

50mm-120mm

Trepanning diameter range

 Φ100~Φ250mm

Max. Hole Boring depth

4000mm

Max. Workpiece length

4000mm

Controller

Delta PLC

Machine brief:

  • Machine application :The machine tool is specialized in processing cylindrical deep-hole workpiece equipment, machine bed is with good rigidity and accuracy. Equipped with 2 sets of adjustable roller center frame, it can also adapt to the machining of large workpiece's inner hole.The spindle speed range is wide, and the feed system is driven by AC servo motor, which can meet the needs of various deep hole processing technology.The tightening of oil pressure head and workpiec adopts servo tightening method.
  • Machine bed:The guide rail adopts double flat guide rail design, and the machine bed guide rail width is 800mm. The material adopts high quality cast iron HT300. Artificial aging treatment, medium frequency quenching treatment on the surface of guide rail, quenching depth 2-3 mm, quenching hardness HRC45-50. High precision and good abrasion resistance. Precision rack drive bracket is installed in the middle of the guide rail ,It is used for infeeding and rapid movement of the bracket.
  • Headstock and chuck : Headstock 21grade speed regulation, speed range 3.15-315 r/min. The box body is made of high quality cast iron with artificial aging. All gears are made of high quality medium carbon steel or low carbon alloy steel with quenching hardness of about HRC48.Grinding process to improve working accuracy and wear resistance.A button station on the front side of the headstock can control the forward movement and stop of the spindle.The headstock is fixed structure, the main motor is fixed on the bed body, the transmission rigidity is good, and the aseismic property is good.
  • The cage type chuck body is mainly fixed on the front end of the spindle, and a 630mm three jaw chuck is mounted on the chuck body.

Machine main tech parameters

 

Items

Parameters

Remark

Working capacity

Drilling diameter range

Φ50~Φ120mm

 

Boring diameter range

Φ50~Φ500mm

 

Trepanning diameter range

Φ100~Φ250mm

 

Max. Boring depth

 4m

 

Roller center frame clamping diameter range

Φ100~Φ500mm

 

Main spindle

Center height

(spindle center to machine flat guide rail)

625mm

 

Spindle rotary speed range

 3.15~315r/min  

21grades

Machine capability

Drill box

Rotary speed range

60~1000r/min

12 grades

Drill box motor

30KW

 

Spindle front end taper

140#

 

Carriage infeed speed range

5-1000mm/min

Stepless

Carriage rapid traverse rate

1m/min

 

Cutter tool infeed servo motor power

7.5kW

 

Oil pressure head servo motor power

7.5kW

 

Coolant system

Cooling pump motor power

7.5kw*3

 

Rated Pressure

2.5MPa

 

Flow

200/500/800L/min

 

Others

Machine totally weight

Roughly 33 T

 

Machine Max.Loading weight

 10T

 

Machining accuracy of machine tools:

Drilling: surface roughness: Ra6.3~ Ra 12.5 m.

Boring: surface roughness: Ra3.2 m.

Rolling: surface roughness: Ra0.2--0.4 M

Straightness of machining holes: less than 0.24/4000mm.

5.Machine configuration

Machine standard configuration

Machine optional configuration

Cutting tool oil supply constant rate pump group

Automatic paper filter

PLC system

Chip conveyor

Slide guide rail

Auxiliaries

Hydraulic station

Cutting tool

1 group drill bar support

Cutting oil

Machine operating instruction *1copy

Automatic oil

Machine bed

Machine safety guard

Coolant system

Oil chiller

 

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