DRILLSTAR CARBIDE TOOLS ARE WORKING IN MANY PLACES AROUND THE WORLD
BTA Deep Hole Drilling And Boring Machines are specialized industrial tools designed to precision machine deep cylindrical holes—ranging from 3mm to 300mm in diameter and up to 12 meters in depth—with unmatched accuracy and efficiency. Based on the BTA (Boring and Trepanning Association) drilling system, these machines utilize a single-tube tooling system where coolant and chips are evacuated through the annular space between the drill tube and the workpiece, enabling stable operation in deep-hole applications that traditional drilling methods cannot handle.
Engineered for heavy-duty machining of ferrous and non-ferrous materials, including stainless steel, titanium, and aluminum alloys, these machines feature rigid constructions, high-precision spindle systems, and advanced CNC controls. They are the go-to solution for industries requiring deep holes with tight tolerances (e.g., roundness ≤0.02mm/m, surface roughness Ra ≤1.6μm), such as oil and gas, aerospace, and automotive sectors. By combining robust mechanical design with intelligent process control, BTA machines deliver consistent results even in the most challenging deep-hole drilling scenarios.
1. High-Pressure Coolant System: Integrates a 50–200 bar coolant pump to flush chips efficiently and maintain optimal tool temperature, reducing tool wear and improving hole straightness.
2. Precision Guidance Systems: Mechanical or electronic guiding bushes ensure accurate hole alignment, minimizing deflection during deep penetration. Laser alignment tools are available for ultra-deep applications (>5 meters).
3. Modular Tooling Compatibility: Supports a wide range of BTA drill heads, reamers, and boring bars, allowing quick adaptation to different hole diameters and depths without major machine reconfiguration.
4. CNC Multi-Axis Control: Advanced numerical control enables programmable feed rates, spindle speeds, and peck drilling cycles, optimizing chip evacuation and preventing tool breakage in interrupted cutting conditions.
5. Heavy-Duty Construction: Cast iron or welded steel frames with vibration-damping properties, capable of withstanding high axial forces (up to 50,000N) and maintaining positional accuracy over extended operations.
Oil & Gas Industry: Drilling deep holes in hydraulic fracturing equipment (valve bodies, pump cylinders) and subsea components, where hole straightness and surface finish are critical for sealing integrity.
Aerospace Manufacturing: Machining landing gear components, aircraft structural tubes, and engine parts with deep hollow sections, ensuring weight reduction without compromising strength.
Automotive Sector: Production of diesel engine cylinder liners, steering knuckles, and transmission shafts, enabling efficient mass production of deep-bored components.
Energy Equipment: Fabrication of heat exchanger tubes, nuclear reactor coolant channels, and wind turbine axle shafts, requiring precision in both diameter and depth.
Q: What is the minimum hole diameter these machines can handle?
A: Standard models start at 12mm diameter, while specialized micro-BTA systems can machine holes as small as 3mm with appropriate tooling.
Q: How do you ensure hole straightness in ultra-deep drilling (e.g., 10 meters)?
A: A combination of pre-machined guide holes, high-stiffness boring bars, and real-time depth sensors with automatic feed adjustment maintains straightness within 0.1% of hole depth.
Q: Can these machines be used for non-circular deep holes?
A: No, BTA systems are optimized for cylindrical holes. For non-circular profiles, alternative methods like trepanning or electrochemical machining may be recommended.
Q: What maintenance is required for the coolant system?
A: Regular filter changes (every 200 hours) and coolant purity checks (conductivity <50μS/cm) are essential. Antimicrobial additives can extend coolant life in high-temperature environments.
Project name | T2120G T2120G/1 |
Drilling diameter range | Φ40mm ～ Φ80mm |
Boring diameter range | Φ40mm ～ Φ200mm |
Center high | 400mm |
Boring depth range | 1000 ～ 10000mm |
Chuck diameter | Φ400mm |
Center frame clamping diameter range | Φ50mm ～ Φ400mm |
Spindle speed range, series | 50 ～ 800r / Min third gear 12 levels |
Main motor | N = 30kW |
Feed speed range | 5 ～ 2000mm / Min (stepless) |
Feed motor | N = 4.5kW servo motor |
Granter motor | N = 4.5kW servo motor |
Cooling pump motor | N = 5.5kW N = 1440r / Min (four groups) |
Cooling system rated pressure | 2.5MPa |
Cooling system flow | 100 200 300 400L / Min |
If equipped with frequency conversion motor | Spindle rotation range, series | 60 ～ 1200r / Min third gear stepless |
Main motor | N = 37Kw frequency conversion motor | |
T2120G / 1 is equipped with 15Kw, speed 40-500r / Min boring bar box | ||
Add the function of drilling small holes to process 20-40mm diameter holes | ||
Project name | Parameters | Project name | Parameters |
* Bore diameter range | Φ100～Φ550mm | Motor power of boring bar box | 22kW |
Boring depth | 1000～12000mm | Feed motor power | 7.75kW Siemens |
Spindle center height | 625mm | Cooling motor power | 5.5kWthreegroups |
Spindle four-jaw chuck clamping diameter range | Φ110 ～ Φ750mm | Hydraulic pump motor power | 1.5kW |
Center frame clamping diameter range | Φ110 ～ Φ750mm | Coolant rated working pressure | 0.36MPa |
Spindle through hole diameter | Φ130mm | Cooling system flow | 300 600 900L/Min |
Taper hole at the front end of the spindle | Metric 140 # | CNC system | SIMENS 802D |
Spindle speed range | 3.15 ～ 315r / Min level 21 | Quick moving speed of carriage | 2000mm/Min |
Speed range of boring bar box | 60 ～ 300r / Min | Precision | IT7～IT8 |
Through hole diameter of spindle of boring bar box | Φ75mm | Machining surface roughness (fine boring) | Ra1.6～3.2µm |
Taper hole at the front end of the spindle of the boring bar box | Φ85mm 1:20 | Roundness (measured on 300mm) | 0.03mm |
Feed speed range | 3 ～ 2000mm / Min stepless | Cylindricity (measured on 300mm) | 0.04mm |
main motor power | 30kW |
Note: With * function, it is exclusive for TK2150 CNC deep hole drilling and boring machine.
TK2250 is a double rack transmission structure, which is different from the ordinary structure screw.
BTA Deep Hole Drilling And Boring Machines are specialized industrial tools designed to precision machine deep cylindrical holes—ranging from 3mm to 300mm in diameter and up to 12 meters in depth—with unmatched accuracy and efficiency. Based on the BTA (Boring and Trepanning Association) drilling system, these machines utilize a single-tube tooling system where coolant and chips are evacuated through the annular space between the drill tube and the workpiece, enabling stable operation in deep-hole applications that traditional drilling methods cannot handle.
Engineered for heavy-duty machining of ferrous and non-ferrous materials, including stainless steel, titanium, and aluminum alloys, these machines feature rigid constructions, high-precision spindle systems, and advanced CNC controls. They are the go-to solution for industries requiring deep holes with tight tolerances (e.g., roundness ≤0.02mm/m, surface roughness Ra ≤1.6μm), such as oil and gas, aerospace, and automotive sectors. By combining robust mechanical design with intelligent process control, BTA machines deliver consistent results even in the most challenging deep-hole drilling scenarios.
1. High-Pressure Coolant System: Integrates a 50–200 bar coolant pump to flush chips efficiently and maintain optimal tool temperature, reducing tool wear and improving hole straightness.
2. Precision Guidance Systems: Mechanical or electronic guiding bushes ensure accurate hole alignment, minimizing deflection during deep penetration. Laser alignment tools are available for ultra-deep applications (>5 meters).
3. Modular Tooling Compatibility: Supports a wide range of BTA drill heads, reamers, and boring bars, allowing quick adaptation to different hole diameters and depths without major machine reconfiguration.
4. CNC Multi-Axis Control: Advanced numerical control enables programmable feed rates, spindle speeds, and peck drilling cycles, optimizing chip evacuation and preventing tool breakage in interrupted cutting conditions.
5. Heavy-Duty Construction: Cast iron or welded steel frames with vibration-damping properties, capable of withstanding high axial forces (up to 50,000N) and maintaining positional accuracy over extended operations.
Oil & Gas Industry: Drilling deep holes in hydraulic fracturing equipment (valve bodies, pump cylinders) and subsea components, where hole straightness and surface finish are critical for sealing integrity.
Aerospace Manufacturing: Machining landing gear components, aircraft structural tubes, and engine parts with deep hollow sections, ensuring weight reduction without compromising strength.
Automotive Sector: Production of diesel engine cylinder liners, steering knuckles, and transmission shafts, enabling efficient mass production of deep-bored components.
Energy Equipment: Fabrication of heat exchanger tubes, nuclear reactor coolant channels, and wind turbine axle shafts, requiring precision in both diameter and depth.
Q: What is the minimum hole diameter these machines can handle?
A: Standard models start at 12mm diameter, while specialized micro-BTA systems can machine holes as small as 3mm with appropriate tooling.
Q: How do you ensure hole straightness in ultra-deep drilling (e.g., 10 meters)?
A: A combination of pre-machined guide holes, high-stiffness boring bars, and real-time depth sensors with automatic feed adjustment maintains straightness within 0.1% of hole depth.
Q: Can these machines be used for non-circular deep holes?
A: No, BTA systems are optimized for cylindrical holes. For non-circular profiles, alternative methods like trepanning or electrochemical machining may be recommended.
Q: What maintenance is required for the coolant system?
A: Regular filter changes (every 200 hours) and coolant purity checks (conductivity <50μS/cm) are essential. Antimicrobial additives can extend coolant life in high-temperature environments.
Project name | T2120G T2120G/1 |
Drilling diameter range | Φ40mm ～ Φ80mm |
Boring diameter range | Φ40mm ～ Φ200mm |
Center high | 400mm |
Boring depth range | 1000 ～ 10000mm |
Chuck diameter | Φ400mm |
Center frame clamping diameter range | Φ50mm ～ Φ400mm |
Spindle speed range, series | 50 ～ 800r / Min third gear 12 levels |
Main motor | N = 30kW |
Feed speed range | 5 ～ 2000mm / Min (stepless) |
Feed motor | N = 4.5kW servo motor |
Granter motor | N = 4.5kW servo motor |
Cooling pump motor | N = 5.5kW N = 1440r / Min (four groups) |
Cooling system rated pressure | 2.5MPa |
Cooling system flow | 100 200 300 400L / Min |
If equipped with frequency conversion motor | Spindle rotation range, series | 60 ～ 1200r / Min third gear stepless |
Main motor | N = 37Kw frequency conversion motor | |
T2120G / 1 is equipped with 15Kw, speed 40-500r / Min boring bar box | ||
Add the function of drilling small holes to process 20-40mm diameter holes | ||
Project name | Parameters | Project name | Parameters |
* Bore diameter range | Φ100～Φ550mm | Motor power of boring bar box | 22kW |
Boring depth | 1000～12000mm | Feed motor power | 7.75kW Siemens |
Spindle center height | 625mm | Cooling motor power | 5.5kWthreegroups |
Spindle four-jaw chuck clamping diameter range | Φ110 ～ Φ750mm | Hydraulic pump motor power | 1.5kW |
Center frame clamping diameter range | Φ110 ～ Φ750mm | Coolant rated working pressure | 0.36MPa |
Spindle through hole diameter | Φ130mm | Cooling system flow | 300 600 900L/Min |
Taper hole at the front end of the spindle | Metric 140 # | CNC system | SIMENS 802D |
Spindle speed range | 3.15 ～ 315r / Min level 21 | Quick moving speed of carriage | 2000mm/Min |
Speed range of boring bar box | 60 ～ 300r / Min | Precision | IT7～IT8 |
Through hole diameter of spindle of boring bar box | Φ75mm | Machining surface roughness (fine boring) | Ra1.6～3.2µm |
Taper hole at the front end of the spindle of the boring bar box | Φ85mm 1:20 | Roundness (measured on 300mm) | 0.03mm |
Feed speed range | 3 ～ 2000mm / Min stepless | Cylindricity (measured on 300mm) | 0.04mm |
main motor power | 30kW |
Note: With * function, it is exclusive for TK2150 CNC deep hole drilling and boring machine.
TK2250 is a double rack transmission structure, which is different from the ordinary structure screw.
