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Horizontal Dual-spindle CNC Deep Hole Drilling Machine

Product Application Introduction

The machine is mainly used for petroleum, chemical, pharmaceutical, thermal power station, nuclear power station and other industries.

The main function is drilling holes on the tube plate of the shell and tube sheet of heat exchanger.

The maximum diameter of the tube sheet material is 2500(4000)mm and the maximum drilling depth is up to 750(800)mm.

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by SGS Group
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Product Parameters

Item Name Parameter value
DD25N-2 DD40E-2 DD40N-2 DD50N-2
Tube plate Dimension Maximum drilling diameter φ2500mm Φ4000mm φ5000mm
Borehole diameter BTA drill φ16φ32mm φ16φ40mm
Maximum drilling depth 750mm 800mm 750mm
Drilling Spindle Quantity 2
Spindle center distance (adjustable) 170-220mm
Spindle front bearing diameter φ65mm
Spindle speed 2002500r/min
Spindle variable frequency motor power 2×15kW 2×15Kw/20.5KW 2×15kW
Longitudinal slide movement
Stroke 3000mm 4000mm 5000mm
Maximum movement speed 4m/min
Servo motor power 4.5kW 4.4KW 4.5kW
Vertical slide movement of column
Stroke 2500mm 2000mm 2500mm
Maximum movement speed 4m/min
Servo motor power 4.5KW 7.7KW 4.5KW
Movement of double spindle feed slide
(Z axis)
Stroke 2500mm 2000mm 900mm
Feed rate 04m/min
Servo motor power 2KW 2.6KW 2.0KW
Hydraulic system Hydraulic pump pressure / flow 2.55MPa25L/min
Motor power of hydraulic pump 3kW
Cooling system Cooling tank capacity 3000L
Industrial refrigerator power 28.7kW 2*22KW 2*22KW 2*14KW
Electrical system CNC system FAGOR8055 Siemens828D FAGOR8055 FAGOR8055
Number of CNC axes 5 3 5
Total power of motor About 112KW About 125KW About 112KW
Machine dimensions Length × width × height About 13×8.2×6.2m 13*8.2*6.2 14*7*6m 15*8.2*6.2m
Machine weight   About 75tons About 70tons About 75tons About 75tons
Accuracy X-axis positioning accuracy 0.04mm/ overall length 0.06mm/ overall length 0.10mm/ overall length
X-axis repeat positioning accuracy 0.02mm 0.03mm 0.05mm
Positioning accuracy of Y-axis 0.03mm/ overall length 0.06mm/overall length 0.08mm/ overall length
Y-axis repeat positioning accuracy 0.02mm 0.03mm 0.04mm
Tolerance of holes spacing At Drilling tool Entrance Face ±0.06mm ±0.10mm ±0.10mm
At Drilling tool Export Face ±0.5mm/750mm ±0.3-0.8mm/800mm ±0.3-0.8mm/800mm ±0.4nn750mm
Hole roundness 0.02mm
Hole dimension accuracy IT9~IT10

Details and advantages

1. This machine belongs to horizontal deep hole drilling machine. The precision of the casting bed is stable, on which there is a longitudinal sliding table, which works to carry the column for longitudinal (X-direction) movement; the column is equipped with a vertical sliding table, which carries the spindle feed sliding table for vertical (Y-direction) movement; the spindle feed sliding table drives the spindle for feed (Z-direction) movement. 

Horizontal Dual-spindle CNC Deep Hole Drilling Machine5

2. The X, Y and Z axis of the machine are all guided by linear roller guide pairs, which has extremely high bearing capacity and superior dynamic response performance, no gap and high motion accuracy.
3. The worktable of the machine is separated from the bed, so that the clamped material will not be affected by the vibration of the bed. The worktable is made from cast iron with stable precision.
4. The machine has two spindles, which can work at the same time. The efficiency of the machine is nearly double that of the single spindle machine.
5. The machine is equipped with a flat chain type automatic chip remover. The iron chips generated by the drilling tool are sent to the chain type chip remover through the chip removal conveyor, and the chip removal works automatically.

Horizontal Dual-spindle CNC Deep Hole Drilling Machine6

6. The machine is equipped with automatic lubrication system, which can regularly lubricate the parts to be lubricated such as guide rail and screw, effectively ensuring the stable operation of the machine and improving the service life of each part.
7. Simens828D/ FAGOR8055 numerical control system is adopted in the machine numerical control system, which is equipped with electronic hand wheel, so it is convenient for operation and maintenance.

Horizontal Dual-spindle CNC Deep Hole Drilling Machine8
Horizontal Dual-spindle CNC Deep Hole Drilling Machine7

Key outsourced components list






Linear guide rail




CNC system




Planetary gear reducer




Internal cooling joint




Oil pump




Hydraulic valve




Feed servo motor




Switch, button, indicator light


France / Germany


Automatic lubrication system


USA / Japan

Note: The above is our standard supplier. It's subject to be replaced by same quality components of other brand if the above supplier can't supply the components in case of any special matter.

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