Product Description:
BTA Deep Hole Drilling:
BTA Deep Hole Drilling is a technique employed for drilling extremely deep and precise holes in metal components. This method is typically utilized when the depth of the hole exceeds its diameter. The process derives its name from the Boring and Trepanning Association.
During BTA drilling, a special drill tube is surrounded by high-pressure coolant that traverses to the cutting area, facilitating the removal of metal chips through the center of the drill. This approach ensures clean, speedy, and accurate drilling outcomes.
Industries such as oil & gas, aerospace, and hydraulic systems frequently employ BTA drilling to create deep cavities in items like gun barrels, hydraulic cylinders, and machine parts. Especially effective for hole diameters over 20 mm, this method is renowned for its rapid speed and the production of smooth, linear boreholes.
Features:
Advantages of BTA Deep Hole Drilling
✅ High Efficiency: BTA deep hole drilling boasts fast drilling speed, especially for large-diameter deep holes.
✅ Excellent Hole Quality: This method produces straight, round holes with a smooth surface finish.
✅ Good Chip Removal: Chips are efficiently flushed out through the inside, reducing blockages that may hinder the drilling process.
✅ High Precision: BTA deep hole drilling allows for better control of hole diameter and alignment, ensuring accurate and precise results.
✅ Suitable for Long Holes: This technique can drill very deep holes, with depths exceeding 100 times the diameter of the hole.
✅ Works on Tough Materials: BTA deep hole drilling is effective for tough materials such as steel, stainless steel, and alloys.
✅ Stable Process: The rigid tool setup in BTA deep hole drilling ensures a stable process, leading to consistent and reliable results.
Technical Parameters:
| Drill Diameter (mm) | Peripheral Insert | Intermediate Insert | Central Insert | | 25.00-28.00 | NPHT 060308R-G-P | NPMT 050304R-G-I | NPMT 050308L-G-C | | 28.01-29.99 | NPHT 060308R-G-P | NPMT 050304R-G-I | NPMT 060408L-G-C | | 30.00-35.00 | NPHT 070408R-G-P | NPMT 060404R-G-I | NPMT 060408L-G-C | | 35.01-38.00 | NPHT 070408R-G-P | NPMT 060404R-G-I | NPMT 080408L-G-C | | 38.01-39.00 | NPHT 090408R-G-P | NPMT 060404R-G-I | NPMT 080408L-G-C | | 39.01-41.00 | NPHT 090408R-G-P | NPMT 060404R-G-I | NPMT 080408L-G-C | | 41.01-44.00 | NPHT 090408R-G-P | NPMT 080404R-G-I | NPMT 080408L-G-C | | 44.01-45.00 | NPHT 090408R-G-P | NPMT 080404R-G-I | NPMT 090408L-G-C | | 45.01-47.00 | NPHT 090408R-G-P | NPMT 080404R-G-I | NPMT 090408L-G-C | | 47.01-51.00 | NPHT 110408R-G-P | NPMT 080404R-G-I | NPMT 090408L-G-C | | 51.01-54.00 | NPHT 110408R-G-P | NPMT 090404R-G-I | NPMT 090408L-G-C | | 54.01-57.00 | NPHT 110408R-G-P | NPMT 090404R-G-I | NPMT 120408L-G-C | | 57.01-60.00 | NPHT 110408R-G-P | NPMT 090404R-G-I | NPMT 120408L-G-C | | 60.01-64.00 | NPHT 130408R-G-P | NPMT 090404R-G-I | NPMT 120408L-G-C | | 64.01-65.00 | NPHT 130408R-G-P | NPMT 120404R-G-I | NPMT 120408L-G-C | |
Applications:
Applications of BTA Deep Hole Drilling
Oil & Gas Industry
Drill collars, casing, tubing, and oil tool components.
Defense & Firearms
Gun barrels, cannon barrels, and military-grade tubes.
Mold & Die Making
Deep guide holes for mold bases and die components.
Hydraulic Systems
Hydraulic cylinder bores and piston rods.
Aerospace & Aviation
Long, precise holes in structural and engine parts.
Heavy Machinery
Machine spindles, rollers, and heat exchanger tube sheets.
Refrigeration & Heat Transfer Equipment
Tube plates and components with many deep holes.
