🔩 1. Machine Tool Overview – Eccentric hole Gun drilling machine

When you run an Eccentric hole Gun drilling machine, you expect straight holes in tricky starts. This one delivers.

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1.1 What This Eccentric hole Gun drilling machine Can Handle

Drilling diameter	Φ 6 ~ Φ 40 mm
Max depth	6000 mm

That's a deep, narrow hole. Exactly what a real Eccentric hole Gun drilling machine was built for.

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1.2 How This Eccentric hole Gun drilling machine Cuts

Gun drill method – cutting oil goes through the drill bit's inner hole, then carries chips out through the V-groove. Simple. Effective.

Stepped drilling – start with a short cutter, swap to a long one. Each cutter goes to a set depth until you hit target.

Through holes – drill half depth, flip the workpiece around, drill the other half. Any Eccentric hole Gun drilling machine operator knows this trick.

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1.3 Workpiece Clamping – Keeps Everything Still

Indexing holes – here's where the Eccentric hole Gun drilling machine shows its brains.

Left end of workpiece → manual three-jaw self-centering chuck on headstock

Right end → hydraulic self-centering center frame

Headstock can index the workpiece freely. Also moves by hand on the T-slot table's linear guide. Lock it with a manual block when in position.

Hydraulic center frame? Same deal. Move it by hand on the same guide, lock it down.

T-slot table moves in X direction under CNC control.

PLC control for headstock – separate system. Adjust lift and lateral movement. Correct workpiece deviation. During drilling, a wall thickness meter tells you which way the hole is drifting. Then you adjust the headstock vertically or horizontally. That's the Eccentric hole Gun drilling machine difference.

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1.5 Control System – SIEMENS-828D

Axis	What It Does	How
X-axis	Table moves sideways	Roller linear guide → servo motor drives ball screw through reducer
Z-axis	Tool feeds	Roller linear guide → servo motor drives ball screw through reducer
C-axis	Headstock indexing	Servo motor drives spindle, encoder gives closed-loop feedback

A proper Eccentric hole Gun drilling machine doesn't guess. It measures and corrects.

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1.6 Bed – No Floppy Castings Here

Resin sand cast body

Normalized after casting – stress relieved

Ball screw + roller linear guides on tool bed for feed transmission

T-slot workbench on workpiece bed with linear guides for fixtures

T-slot table moves in X direction under CNC

Inside the bed – V-shaped inclined bars. High support strength. Doesn't bend.

Outside – bed wall directly supports the guide rail. The rail takes heavy cutting forces without deforming or shaking. That means better accuracy and faster cutting.

Oil return groove cast around the bed. Cutting oil flows right back to the tank. No puddles on your floor.

A smart Eccentric hole Gun drilling machine thinks about oil management. This one does.

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1.7 Drill Box – Spins the Tool

Job: drive tool rotation.

Servo spindle motor → synchronous belt + pulley → spindle spins up to 3000 r/min. Stepless speed control.

Gun drilling setup – rotary joint at the rear end of the spindle. Takes high-pressure cutting oil from the tubing, sends it through the high-speed spindle, then to the tool.

Front drive – motor drives the front of the spindle. Why? Easier to load and unload cutters. And cutting oil stays away from the motor. That means the motor lasts longer.

Little details. Big difference in an Eccentric hole Gun drilling machine.

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1.8 Tool Feed System – Z-Axis

Servo motor turns the ball screw. That moves the Z axis. Tool feed is stepless – you pick the speed.

Ball screw means:

Low friction loss

High efficiency

High precision

Fast feed or micro feed – both possible

High axial stiffness

No slop. No lag. Just a clean-moving Eccentric hole Gun drilling machine.

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1.9 Drill Bar Support – 5 Sets

Five drill bar brackets. They link with the drill box – spacing adjusts automatically as the drill box moves. That keeps the tool rigid.

A floppy drill bar ruins holes. This Eccentric hole Gun drilling machine won't let that happen.

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1.10 Cooling System – Keeps Heat Out

Main parts:

Component	Job
Dirty oil tank	Collects used oil
Net oil tank	Holds clean oil
Chain plate chip conveyor	Moves chips out
Drum filter	Catches fine impurities
Oil cooler	Cools the cutting oil
Pump set (variable frequency pumps)	Moves oil at the right pressure

Above-ground oil tank – welded from quality steel plate.

On the control station, you get digital readouts for:

Pressure

Oil level

Temperature

Flow rate

Chip discharger – separates chips from oil. Chips go out. Oil leaks back to dirty tank.

Oil cooler – stops your oil from cooking.

Drum filter – keeps cutting oil clean.

Pump set – variable frequency. Adjusts flow as needed.

A hot Eccentric hole Gun drilling machine makes bad holes. This one stays cool.

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Why This Eccentric hole Gun drilling machine Stands Out

Feature	What You Get
True gun drilling	Oil through the bit, chips out the V-groove
Stepped drilling	Short cutter → long cutter → full depth
Through holes	Drill half, flip, drill half
Headstock PLC control	Adjust on the fly while drilling
Wall thickness meter feedback	Correct drift vertically or horizontally
V-shaped bed bars	Stiff. Won't bend.
Front drive spindle	Easier tool change + motor protection
5 linked drill bar supports	Tool stays rigid
Full cooling system	Drum filter, oil cooler, chip conveyor
SIEMENS 828D	X, Z, C axes with encoder feedback

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Need a quote? Want layout drawings? Just ask.

This Eccentric hole Gun drilling machine runs all day, holds tight tolerances, and doesn't argue with you.

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