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Nagel BW50-1 CNC Gundrill Deep Hole Drilling Machine Stock# 220482

Nagel BW50-1 CNC Gundrill Deep Hole Drilling Machine

Nagel TBT Tiefbohrtechnik BW50-1 CNC Deep Hole Gun Drilling Machine


Year of Mfg: 2004


CNC Control: Fanuc 18i-M

Workpiece: Die Plates


Technical Data of the Machine:


X Axis: 30"

Y Axis: 30" 

Z Axis: 12"

Table: 24" x 24"


Application Method:    Gundrilling

Method: Rotating tool standing workpiece on special fixture


Drilling Unit:

Drill unit type: BW50-1

Spindle type: Frequency controlled motor spindle

No. of spindle: 1

Kind of spindle drive: Inf. Variable

Spindle speed: 1,000 - 25,000 rpm

Spindle lubrication: Oil mist


Coolant Equipment:

Type DF15: free standing

High Pressure pump: Single

Pressure monitoring: Yes

Chip handling: Chip pan

Filtering: Double cartridge filters


Machine Description:


01      Deephole drilling machine


01.01   (1) Machine Base BW50 SO

In welded fabrication. Bottom side with leveling elements for machine



01.02   (1) Vertical column

For mounting of the drill unit.  Designed with precision linear roller

guideways. Axis is executed with a high-resolution glass scale.

Vertical movement 20"


01.03   (1) Deep Hole Drilling Unit ML50


Drilling Slide:


In rigid design, for reception of spindle unit.

Slide guiding with precision linear roller guides. Slide drive for

axis by servomotor and precision heavy-duty re-circulating ball screw.


Spindle Unit:


with variable speed regulation. Spindle bearing with high-precision,

pre-loaded angular bearings. Spindle nose with connection for tool



Drill Bushing Carrier:


Fixed assembled onto the drilling slide. Removable Plexi-glass covers

for observation of chip discharge.   Drill bushings are movable for

providing full contact against the workpiece during the drill



01.04   (1) Tool Reception for Drill Spindle 

Fixed integrated in the spindle nose of the spindle.

Designed for the reception of standard gundrills.


01.05   (1) Oil Supply

for coolant supply through the spindle.  Designed for handling coolant

pressures of up to 2,300 PSI.


01.06   (1) Workpiece slide

NC Controlled cross slide unit.  With mounting area for workpiece

fixturing. Cross slide axis with high-resolution glass scale. 

Sideward movement 20"


01.07   (1) Workpiece fixture plate

Rigid designed workpiece angle plate for clamping workpieces of

various thicknesses.


Deep hole drilling specific program sequence for

" automatic operation,

" manual operation

" tool changing position


Process monitoring systems include:

" Cycle counter for tool change intervals

" Spindle power monitoring for tool wear and tool breakage monitoring

" Coolant pressure monitoring


03      (1) Coolant Equipment

High pressure and filtering system. Type DF15 SO.  Designed as a

stand-alone system.


03.01   (1) Coolant tank      

single-wall sheet steel tank for coolant oil.  Chamber with separation

walls, equipped with level indication


03.02   (1) Pre-filtering and chip removal.

        Pre filtering and chip removal by means of a chip pan


03.03   (1) Fine filtering.

        Fine filtering of the re-filtered coolant by means of a cartridge



03.04   (1) High pressure pump

complete with drive and pump carrier.


03.05   (1) Coolant pressure regulation


03.06   (1) Coolant pressure monitoring


03.07   (1) Remote chiller for temperature control of the coolant

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