TLK2220X6 CNC deep hole pull boring machine for high alloy reformer tube spindle servo motor rack and pinion drive

 TLK2220 deep hole pull boring machine, spindle servo motor rack and pinion drive or ball screw drive  

Range  of  boring hole Dia         Φ40-Φ200mm

Range  of  job OD                 Φ60-Φ350mm

Max  boring depth                  2000-6000mm 

Center height   from horizental rail to  spindle center     450mm

Spindle rotation speed ,steps       40-1000r/min  2 shift, infinite in each shift

Feeding speed (AC servo motor )   5-500mm/min  infinite

Carriage  rapid  moving speed     3.5m/min

Main motor                           N=50kw,  Spindle servo motor

Feeding motor                        N= 5kW AC servo

Rated pressure of  cooling system    0.32MPa

Cooling motor            5.5kw x3 ,  two gear pumps, one diving pump

Volume of  cooling system            200-600l/min

Guide way width:                      600mm

III  Function of machine:

1) Deep hole boring Machine accuracy

Pull  boring , precision of hole diameter IT8-10.Surface roughness:Ra3.2

2) Machining efficiency of the machine

Feeding speed:depending on  processing  situation, usually  between 40-200mm/min.

Max stock removal  allowed when  boring :depending on tool structure, material and workpiece , usually not more than 14 mm in diameter.

Composition of machine

1)Bed body :Featuring twin square guide ways, The width  of guide way is 600mm.  hardness  HRC 48-52.

2)The boring box is fitted with a  50Kw spindle motor. There are 2 shifts with speed of 40-1000RPM. Speed is infinite in each shift.  One shift 40-500RPM, another shift 500-1000RPM.

The boring box is made by HT300 iron.

3)Pressure  head

Pressure head is fixed on machine bed by bolt.

There is boring tube sealing bush inside pressure head .

Workpiece sealed with pressure head by sealings.

4) Cooling  system:

Cooling system include coolant supply device and coolant collecting device.

 coolant supply device include  cooling pump, oil tank and cleaning device.

Use  three sets of 200l/min  pump,  with chip conveyor .

  There is oil chiller .

5)Boring bar supporter:3 pieces, open type , this will be easier to change the  Boring bar . lunette supports boring bar and control its  moving direction  and absorb its  vibration.

6) Workpiece fixture

  Has 4 workpiece fixture, diameter Φ 60-350mm, hydarulic clamp workpiece.  As for the 4 workpiece fixture, 3 of them are controlled as a whole and 1 of them is controlled independently.  workpiece fixture is manual moved by hand wheel.  Carraige has locking device.

 Workpiece fixture is made by casting iron(HT200).

7) Lubrication: workpiece fixture and Boring bar supporter are manual lubrication, boring box carriage is  auto-lubrication.

8)Chip discharge pipe:  There is a hollow hole on headframe, chips will be discharged through this hollow hole to chip conveyor.  cooling oil through a filter settling back into the main tank, recycle.  

9) Electrical control system,  

1, Siemens CNC 808D control, consist of electrical cabinet, AC servo drive device,etc. There is digital display to show spindle speed ,feed speed and coolant volume and pressure.

2 Schneider or Siemens brand electrical parts.

3 Voltage : 380V 50Hz

Sub contractor

Our company have more than 15 years experience in  design, manufacturing and sales of deep hole drilling machine,   have more than 4 million USD  in fixed assets. The company occupies an area of  60 acres with two plants and employs more than 200 people.

Our advantage:

1 Has two manufacture plants, covered area more than 20,000m2, each year produce more than 200 sets of machine.

2 Big quantity machine parts(beds, headstock, drill box) in stock, 2 months delivery is available, The bed will be kept for 3-6 months before machining for natural aging.

3  Big quantity standard parts such as gear, hardware parts in warehouse for fast delivery.

4 Strong parts machining capacity to keep machine accuracy. Such as : bed milling, bed grinding, headstock boring ,turning.