Gundrill and BTA tool parts

vastuna gundrilling machine

system

Gundrill tools parts

Guide bush
Front rubber bush
Steady rest bush

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system

bta drilling system

BTA tools parts

Guide bush
Pressure head sealed bush
Damper bush
Power lock

gundrill guide bush

Gundrill Tool parts

Gundrill tool parts Gundrill system needs a chip box and some steady rests for supporting gundrills.  We need some parts to  link the machine with

Read More »
vastuna gundrilling machine

Gundrill and BTA tool parts

system Gundrill tools parts Guide bushFront rubber bushSteady rest bush Read more… system BTA tools parts Guide bushPressure head sealed bushDamper bushPower lock Call us

Read More »

Vastun

  • Address: No.16, Aly. 26, Ln. 667, Zhongshan Rd., Shengang Dist., Taichung City 42950, Taiwan
  • Tel: +886-4-25615595
  • Fax: +886-4-25615695

Vastun

  • Address: No.2, Ln. 262, Shenzhou Rd., Shengang Dist., Taichung City 429, Taiwan
  • Tel: +886-4-25157737
  • Fax: +886-4-25157739

What is “Deep Hole Drilling”?

vastuna

What is

Gundrilling system machines, Deep hole drilling machines

Made in

High material removal rate with high accuracy

Deep Hole Drilling

A deep hole is defined as one that is a minimum of 10 times its diameter in depth. On the maximum side, a deep hole drilling is generally capable of drilling to a depth of 100 to 150 times its diameter. And hole deeper than 10 times the diameter should certainly be considered a deep hole, requiring a specialised drilling technique.

Deep hole drilling are characterized by high material removal rate plus high accuracy with regard to the straightness of the hole, surface finish and dimensional tolerances. The extreme conditions which apply when drilling deep holes place high demands on the tool, machine and associated equipment.

 

deep hole drilling machine
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Methods

Deep hole drilling is the machining of holes with a relatively large depth to diameter ratio.  Whereas normal drilling techniques produce holes where the depth is rarely more than five times the diameter.  In deep hole drilling the ratio may reach 150 times (depthe/diameter), and any hole deeper than ten times the diameter should certainly be considered a deep hole, requiring a specialised drilling technique.

Deep hole drilling can employ various machine set-ups: rotating workpiece, rotating tool, or both tool and workpiece rotating.

Counter-Rotating Tool and Workpiece

The best straightness is obtained with counter rotation. Cutting speed is composed by tool and workpiece rotation speed.

Rotating Workpiece

The next best straightness is obtained with a rotating workpiece. Cutting speed is depending on workpiece rotation speed.

Rotating Tool

The least straightness is obtained with a rotating tool. Cutting speed is depending on tool spindle speed.

deep hole drilling method

Systems

Gundrilling system

The characteristic of the single flute gundrilling process is that coolant is fed through the coolant hole in the tool and exits along with the chips in the v-shaped groove (flute) on the drill tube from the drilled hole. the coolant also provides lubrication to the drill periphery.

gundrilling system

BTA single tube system

BTA system is totally different with Gundrilling system. The chips come out from drill tube through tool spindle to conveyor. The BTA system is suitable for drilling larger holes with quicker feeding rate. *BTA has Ejector system and Single tube system. All BTA machines will be used Single tube system in Vastuna.

bta drilling system

gundrill guide bush

Gundrill Tool parts

Gundrill tool parts Gundrill system needs a chip box and some steady rests for supporting gundrills.  We need some parts to  link the machine with

Read More »
vastuna gundrilling machine

Gundrill and BTA tool parts

system Gundrill tools parts Guide bushFront rubber bushSteady rest bush Read more… system BTA tools parts Guide bushPressure head sealed bushDamper bushPower lock Call us

Read More »

Information

Vastuna

  • Address: No.16, Aly. 26, Ln. 667, Zhongshan Rd., Shengang Dist., Taichung City 42950, Taiwan
  • Tel: +886-4-25615595
  • Fax: +886-4-25615695

Vastuna

  • Address: No.2, Ln. 262, Shenzhou Rd., Shengang Dist., Taichung City 429, Taiwan
  • Tel: +886-4-25157737
  • Fax: +886-4-25157739