Home > Products > BTA Deep Hole Drilling Machines

Products

Deep Hole Drilling Machine For Hole 20mm To 100mm

1. Machine Brief: 1.1 Machine processing range: Solid drilling diameter range ：Φ20-Φ120mm Outer diameter range ：Φ100-Φ400mm Weight of workpiece: 700KGS-10000KGS Length of workpiece: 2000mm-6500mm Drilling depth:2500mm 1.2 Machine functions: Drilling (BTA Drilling Method): Cutting...

Send Inquiry Chat Now

Description

1. Machine Brief:

1.1 Machine processing range:

Solid drilling diameter range ：Φ20-Φ120mm

Outer diameter range ：Φ100-Φ400mm

Weight of workpiece: 700KGS-10000KGS

Length of workpiece: 2000mm-6500mm

Drilling depth:2500mm

1.2 Machine functions:

Drilling (BTA Drilling Method):

Cutting oil is supplied through the gap between the oil pressure head, tool holder, and hole

wall, entering the tool and carrying chips out through the internal hole of the tool holder.

1.2.1 Main Components of the Machine Tool:

Machine bed,Headstock,oil pressure head,boring bar support, drill box,Sliding guide rail,Gear

rack,Cooling system,control system,Electrical cabinet,Steady rest.

1.2.2 Workpiece clamping method:

The manual three-jaw chuck on the headstock clamps one end of the workpiece, while the

tapered disk on the oil pressure head presses against the other end

mahine tool processing methods: workpiece rotation, tool rotation, tool feed.

1.2.3 Machine system: PLC control system

Z-axis: Longitudinal feed movement of the drill box. A servo motor drives the rack and pinion

mechanism via a reduction gearbox.

X-axis: The oil pressure head servo unit clamps the workpiece. A servo motor drives the rack

and pinion mechanism via a reduction gearbox.

The machine is equipped with an industrial touchscreen panel. Operators perform real-time

machine operation and monitoring via this panel.

Operators can set spindle speed, feed rate, and machining depth. These parameters can be

adjusted steplessly during the machining process, making the machine particularly suitable for

hard-to-machine materials such as titanium alloys, stainless steel, and high-temperature alloys.

The system also features multiple monitoring and alarm displays. It provides digital displays

for coolant system parameters including flow rate, pressure, liquid level, and oil temperature.

The operator interface is concise, easy to understand, simple to master, and convenient to operate.

1.2.4 The machine bed, box body, pallet and other basic parts are made of high-quality cast iron

precision casting. After the casting is completed, they undergo two aging treatments to eliminate

internal stress, stabilize structure and size, and improve mechanical properties.

1.2.5 Machine bed:

Casting & Heat Treatment: The bed is cast using resin sand molding and undergoes

normalizing treatment after casting.

Modular Construction: It features a split design assembled using high-strength bolts and

precisely aligned with taper pins.

Guideways: Equipped with dual precision-ground rectangular slide guideways. The guide

surfaces are hardened to achieve high hardness.

Internal Drive: A hardened and precision-machined helical rack is assembled inside the bed

for tool feed transmission.

Strength & Rigidity: This design ensures high load capacity, exceptional rigidity, and stable

transmission characteristics.

Internal Reinforcement: V-shaped diagonal ribs are arranged internally, providing substantial

support strength and minimizing deformation.

Direct Support & Stability: The bed's outer walls directly support the guideways, enabling

them to withstand significant cutting forces. The guideways exhibit excellent rigidity, resulting in

minimal deformation or vibration during machining. This enhances both machining quality and

efficiency.

Coolant Management: A perimeter-cast coolant return trough surrounds the bed. Equipped

with splash guards, it efficiently channels cutting fluid/coolant to automatically drain back to the

coolant recovery tank

1.2.6 Headstock:

Location & Function: Mounted on the left end of the machine bed, the headstock drives the

workpiece rotation.

Speed Control & Drive: Features manual 3-speed ranges with stepless speed regulation within

each range. A servo spindle motor drives the main spindle rotation via belts and a gearbox.

Workholding: A manual 3-jaw chuck is mounted on the headstock front for workpiece

clamping.

Gear Manufacturing: Gears are precision ground.

Gear Treatment & Performance: Gear tooth surfaces undergo high-frequency quenching. This

process imparts high strength, hardness, wear resistance, and fatigue limit, enabling the gears to

withstand significant alternating loads and impact loads.

Lubrication: An external oil tank provides circulating lubrication for gears and bearings. The

tank incorporates a low oil level alarm.

Operator Controls: A button panel mounted on the headstock housing provides functions for:

spindle jog, feed forward, feed reverse, and emergency stop.

1.2.7 Closed type center rest:

The steady rest provides workpiece support. It features a closed-center, three-point

design with two rollers at the bottom and one roller at the top. The position of the two lower

rollers is adjusted horizontally via a leadscrew mechanism.

1.2.8 Oil pressure head:

Provides tool guidance, cutting oil supply, and tool holder support.

Drive System: Servo-driven axial movement adapts to workpieces of varying lengths while

enabling workpiece clamping/unclamping. The servo motor operates in either torque

mode or position mode.

Structural Integrity: A rotary bearing installed internally within the feeder body ensures high

rigidity and rotational accuracy.

Sealing & Maintenance: The rotary seal is mounted externally at the right end of the unit for

easy maintenance access.

Tool Support: A tool holder support sleeve is installed at the right end to stabilize the tool

holder.

Workpiece Interface (Left End):

Guide bushing: Directs tool alignment

Positioning cone: Locates and centers the workpiece

Oil containment system: Prevents coolant leakage

Coolant Management: Features a push-pull oil containment device with an integrated drain

pan beneath. This channels cutting oil back to the reservoir via gravity drainage.

1.2.9 Drill box

Mounted on the feed carriage, it drives tool rotation.

Speed Control & Drive: Features manual 3-speed ranges with stepless regulation within each

range. A servo spindle motor drives the spindle rotation via belts, pulleys, and a gear train.

Tool Interface (Left End): A tool holder adapter is fitted to the spindle for mounting cutting tools.

Chip Management (Right End): A chip chute is installed to evacuate machining chips.

Gear Manufacturing & Performance:

Gears are precision ground

Gear teeth undergo high-frequency quenching

Delivers high strength, hardness, wear resistance, and fatigue limit

Withstands significant alternating loads and impact loads

Lubrication: An external oil tank provides circulating lubrication for gears and bearings, with

built-in low oil level alarm.

1.2.10 Drill bar support rest:

Provides tool holder stabilization.

Structural Design: Features a high-rigidity monolithic construction with an integrated support

sleeve that effectively dampens machining-induced shocks and vibrations.

Automated Operation: Equipped with an auto-return mechanism. During tool withdrawal, the feed

carriage automatically retracts the support stand to its initial position

1.2.11 Coolant system:

Provides sufficient cutting fluid for deep-hole machining, comprising a coolant pump, chip baskets, oil

tank, and related components.

Tank Construction: Features a floor-mounted tank fabricated from high-quality steel plates with

fully welded seams.

Contamination Protection: Telescopic protective covers installed between the chip baskets on the

tank fully enclose the reservoir, preventing debris ingress.

Parameter Monitoring: Cutting fluid pressure, level, temperature, and flow rate are displayed

via digital readouts on the operator station.

1.2.12 Lubrication system:

Feed Carriage Guideways:

The sliding guideway surfaces are lubricated by an automatic lubrication station providing timed,

metered lubrication. Equipped with low oil level alarm.

Headstock Components:

Bearings and gears are lubricated via a dedicated external oil tank with circulating lubrication.

Features low oil level alarm.

Drill Rod Box Components:

Bearings and gears are lubricated via a dedicated external oil tank with circulating lubrication.

Features low oil level alarm.

Oil Feeder & Tool Support Carriages:

Lubricated using a manual lubrication pump operated by personnel.

1.2.13 Workpiece support rest:

Used for workpiece pre-positioning.

Operation Sequence:

The operator places the workpiece onto the rest.

After workpiece clamping and final positioning is completed,

The workpiece disengages from the rest.

Adjustment Mechanism: The V-block on the workpiece rest is manually raised and lowered via

a T-handle leadscrew

1.2.14 Electric box:

2. Machine main parameters:

Specification			Parameters	Note
Working capacity	Drilling diameter range		Φ20~Φ120mm
	Outer diameter range		Φ 100~Φ400mm
	Length of workpiece		2000-6500mm
	Max. machining depth		2500mm
Machine performance	Z1 axis(drill box feeding)	Infeed speed range	5～1000mm/min
		Rapid traverse rate	2000mm/min
		Max. Feeding force	60KN
		Servo motor/torque	19Nm/3KW
	X axis(Oil feeder movement)	Rapid traverse rate	2000mm/min	Stepless
		Max. Feeding force	60KN
		Servo motor/torque	19Nm/3KW
	Drill box	Rotary speed range	30-1000r/min
		Gear	Manual 3-speed ranges with stepless regulation within each range
		Motor	37KW	Servo spindle motor

	Headstock	Rotary speed range	30-500r/min
		Motor power	37KW	Servo spindle motor
		Gear	Manual 3-speed ranges with stepless regulation within each range
		Chuck	Φ400mm	Manual 3- jaw chuck
		Spindle Taper Hole	Metric 140
	Machine total power		120kw
	Machine load bearing		10T
	Machine footprint		16mx3.3m
	Total machine weight		20T
	Center rest clamping range		Φ100~Φ400mm
	Width of machine bed		600mm
	Center height(from flat guideway to spindle center)		400mm
Cooling system	Max.pressure		2.5MPa
	Max. flow		400L/min
	Oil tank capacity		5300L

3. Machine Main Components Manufacturer List:

Name	Manufacturer
PLC control system	DELTA
Servo motor for X-axis	Chinese
Servo motor for Z-axis	Chinese
Main motor for headstock	MK
Main motor for drill box	MK
Coolant pump motor	Chinese
Main electric components	Siemens or Schneider
Spindle bearing for drill box	Haval Bearing
Spindle bearing for headstock	Haval Bearing

Coolant pump	Chinese
Rack	YYC Taiwan
Chuck for headstock	Chinese

4. Machine accuracy:

Skewness:0.4mm/1000mm

Drilling: Hole accuracy: IT9-11

Surface roughness: Ra6.3-12.5um

5. Machine tool protection measures:

l Machine tool lubrication oil shortage protection

l Liquid level and pressure protection for the cooling system

l Overload protection for the spindle box motor

l Feed motor load protection

l Cooling pump motor fault alarm

l Alarm for lubrication motor failure of headstock box or drill pipe box

l Limit protection

6. Machine standard parts:

NO	ITEM	QTY
1	PLC control system	1set
2	Machine bed	1set
3	Drill box	1set
4	Headstock	1set
5	3-jaw chuck for headstoxk	1set
6	Workpiece support rest	2sets
7	Oil pressure head	1set

8	Coolant system	1set
9	Feeding carriage	1set
10	Lubrication system	1set
11	Electric box (with air conditioning)	1set
12	Manual	1set
13	Boring bar support rest	2sets
14	Closed type center rest	2sets

7. Random information:

Foundation and installation plan, general drawing of machine, operation manual, Control and program manual, electrical description.

8. Working conditions of machine tools:

8.1 Power Supply: Three-phase five-wire power supply, 380V± 5%, 50Hz±1 Hz.

8.2 Working environment temperature: 0℃ to 40℃. (Does not freeze

8.3 Ambient humidity below 80% (no condensation)

8.4 Altitude: 0-2000 meters

9. Machine tool installation and commissioning conditions (prepared by the user)

9.1 Foundation Requirements: The user shall prepare the foundation according to the foundation drawing

9.2 Secondary Irrigation: The user prepares the secondary irrigation grouting material and tools

9.3 Incoming power supply: Three-phase five-wire power supply, 380V± 5%, 50Hz±1 Hz. The user provides the cable from the workshop power supply to the electrical cabinet

9.4 Cleaning oil and utensils: Provide 20 liters of gasoline or kerosene and several cotton cloths

9.5 Cutting Oil: Deep hole extreme pressure cutting oil, kinematic viscosity at 40℃ : 20-25mm2/s, extreme pressure agent content ≥15%, flash point at ℃≥160, usage approximately 5300 liters.

9.6 The user prepares the lifting gear and tools for hoisting

9.7 Cutting tools, accessories and fixtures for machine tool test runs (if the user has not placed an order).

9.8 Lubrication Station: ISO-L-HM32, 100 liters

Hot Tags: deep hole drilling machine for hole 20mm to 100mm, China, suppliers, manufacturers, factory, customized, price, cheap, company, cost, for sale

Deep Hole Drilling And Boring Machine For Twin Barrels

CNC Deep Hole Drilling And Boring Machine For Military Industry