Deep hole drilling machines of GSM conatin gun drill machines and BTA deep hole drilling machines.

What is gun drilling? Because deep hole drilling machine is widely used in drilling gun barrel, as time goes by, the name “gun drilling”  is fixed. Typically,  gun drilling standas for drilling technology of internal cooling and external chip removing. Because of the unique structure of gutting tool. Normally, gun drilling fits for drilling 10:1 of length-to-diameter ratio.

Then, what BTA stands for?  The full name of BTA is Boring and Trepanning Association. Thus, we know BTA fits for drilling big diameter (≥16mm). Because the drilling head is connected by a single tube, it is also call STS (single tube system). BTA drilling can meet extreme length-to-diameter requirement such as 400:1.

Here we introduce main parts of our machines. Besides, you can also have a general idea about ordering code of GSM. Which may help you for quick order.

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Parts of Deep Hole Drilling Machines

deep hole drilling machinesStability & Color

HT300 one-piece casted machine bed, spindle box and boxes, etc.

High rigidity by 3D dissecting of structure and artificial aging. Thus, reduces vibration and deformation during processing.

Introduced full closed protection and partial protection.

White (RAL9003) for upper part and gray (RAL7046) for machine bed as GSM color code.

deep hole drilling machinesCNC System

FANUC, SYNTEC and GSK for your option.

Drilling parameter can be programmed.

Therefore, convenient for operation.

deep hole drilling machinesSpindle System

Step-less rotating and feeding.

High speed precise mechanical spindle, spindle motor, frequency motor and motorized spindle driving for option.

High pressure rotary joint inserts cutting fluid into drilling tool from back of spindle.

Introduced DEBULIN from USA and ROTOFLUX from Italy for option.

deep hole drilling machinesTransmission System

Introduced linear guide and ball screw of high rigidity and precision.

Becasue of precise and smoot sliding, efficient, precise and stable drilling is sevured.

Lubricated by automatic batch lubrication pump.

deep hole drilling machinesAuxiliary Chip Flushing Device

On side of chip box.

Manual and automatic control.

Efficiently help to remove chips.

deep hole drilling machinesDrilling Tube Support

Driven by chains.

When tool returns keeping the structure on average position.

Help to conveniently replace tools.

deep hole drilling machinesAdjustable Drill Driver Structure

Gun drilling tool’s length changed after grinding.

But can keep uniformity of tool’s length by setting gauge and adjustable shank.

Thus, ensures uniformity of drilling depth of multiple spindle machines.

safetyOverview of Safety Function

The whole machine is equipped with multiple monitoring, alarming and inter-locking functions.

Equipped with cutting fluid pressure adjusting, monitoring and displaying device.

Automatic tool wearing and breaking inspection.

Automatic alarm and stop when currency beyond rated value.

coolant pumpHigh Pressure Coolant Pump

Optional plunger pump, gear pump, vane pump, etc in term of different drilling demands.

Ensures better lubrication, coolant and chip removing.

coolant machine learning overviewCutting Fluid Coolant Machine

High power and digital control.

coolant machine learning overviewFluid Tank

Unfiltered area introduced special designed fluid return path to prolong the circulation.

Better sediment of chip and coolant of oil.

Equipped with fluid level switch. Automatic alarm and stop when lack of fluid.

paper filter machine learning overviewDrum Paper Tape Filter

Final filter device of the system.

Full closed filtering.

Automatic paper feeding.

Filtering accuracy can be 20um.

Deep Hole Drillling Machines Order Code

Please refer to bellowing picture to learn GSM machine code. This code is for ordering if clearly knowing specific model you need. And helps you to have ageneral idea about model’s menaing. Thus, you may write a model for your own and let us to confirm.

e.g.: ZK2108×4B/1500

ZK21: cnc deep hole drilling machine

08: drilling diameter 8mm

4: 4 spindles

B: counter-rotary of workpiece and drilling spindle

1500: Max.drilling depth is 1500mm

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