Twin-Spindle Deep Hole Gun Drilling Machine

Twin-spindle deep hole gun drilling machine is designed for efficient machining of coaxial holes in shaft-type components. With its dual-spindle configuration, it processes two workpieces at once, delivering exceptional productivity and consistent quality.

---

Deep Hole Gun Drilling Machine Key Specifications

Parameter	Value
Drill diameter range	Φ4 – Φ20 mm
Max drill depth	1500 mm
Max hole L/D ratio	100:1
Workpiece OD range	Φ15 – Φ70 mm
Spindle quantity	2
Spindle spacing	140 mm
Drill box max speed	5000 r/min
Drill box motor power	7.5 kW × 2
Headstock speed	117 r/min
Headstock motor power	1.5 kW × 2
Feed speed range	5 – 500 mm/min
Rapid move speed	4 m/min
Coolant max pressure	10 MPa
Coolant max flow	200 L/min
Filtration accuracy	20 μm
Machine total power	42 kW
Floor size	5.8 m × 3.1 m
Machine weight	7 T

---

Deep Hole Gun Drilling Machine Processing Accuracy

Parameter	Value
Hole accuracy	IT7 – IT10
Surface roughness	Ra1.6 – 6.3 μm
Hole deviation (workpiece rotation)	0.5 mm / 1000 mm
Reaming roughness	Ra0.4 – 0.8 μm
Reamed hole accuracy	IT7 – IT8

---

Deep Hole Gun Drilling Machine Key Features

Twin-spindle – processes two workpieces simultaneously

Gun drilling + reaming – two operations in one machine

Tool and workpiece rotate relative to each other

Automatic hydraulic cone disk clamping – self-centering, fast setup

5000 r/min spindle speed – high-speed precision drilling

Stepless feed speed regulation – 5–500 mm/min

10 MPa high-pressure coolant – efficient chip removal

20 μm filtration – clean cutting oil

Linear guideways – smooth, accurate motion

Fanuc CNC control – reliable and user-friendly

Two-stage aged castings – long-term stability

Full protection – optional oil mist collector

---

Deep Hole Gun Drilling Machine Components

Component	Description
Drill Box	7.5kW × 2 servo motors, 5000rpm, twin-spindle, one motor drives two spindles
Headstock	1.5kW × 2 motors, 117rpm, hydraulic axial movement for clamping
Feed System	Servo motor + ball screw, 5–500mm/min, 4m/min rapid
Coolant System	10MPa, 200L/min, 20μm filtration, chip conveyor, oil chiller
Guide Frame	Tool guidance, chip discharge, drill bar support
Drill Bar Support	3 sets, linked movement with drill box

---

Workpiece Clamping

Cone disks mounted on headstock and guide frame spindles

Hydraulic system controls axial movement

Cone disk engages chamfers on both workpiece ends

Automatic clamping and positioning

Optional: Manual or hydraulic chuck

---

Why Choose Deep Hole Gun Drilling Machine ?

Benefit	Reason
Double productivity	Twin-spindle processes two parts simultaneously
Deep hole capability	100:1 L/D ratio in single pass
Drilling + reaming	Two operations in one machine
Precision holes	IT7-IT10 accuracy
Good surface finish	Ra1.6–6.3μm (Ra0.4–0.8μm after reaming)
Efficient chip removal	10MPa high-pressure coolant
Clean operation	20μm filtration, oil return groove design
Easy setup	Automatic cone disk clamping
Reliable control	Fanuc CNC system
Long-term accuracy	Two-stage aged castings

---

Typical Applications

Shaft-type components with coaxial holes

Automotive transmission and camshafts

Hydraulic piston rods and valve spools

Aerospace actuator shafts

Precision engineering components

---

Contact Me

Hot Tags: twin-spindle deep hole gun drilling machine, China, suppliers, manufacturers, factory, customized, price, cheap, company, cost, for sale