Twin Head Machining Technology
Simultaneous machining from both sides for reduced cycle times.
CNC Duplex Boring Machines
DB SERIES
The DB Series CNC Duplex Boring Machines from Sahil Machines are twin-head CNC systems designed for simultaneous machining from both sides of a component. With synchronized CNC control and opposed spindle architecture, they deliver higher productivity, reduced cycle times, and excellent accuracy for heavy engineering applications across automotive, railways, energy, mining, and marine industries.
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Full Technical Specifications | Sahil Machines • Boring Division

| Description | Unit | DB 2000 | DB 3000 | DB 4000 |
|---|---|---|---|---|
| Machine Type | - | CNC Duplex Boring Machine | CNC Duplex Boring Machine | CNC Duplex Boring Machine |
| Structure | - | Twin Head Opposed Spindle Design | Twin Head Opposed Spindle Design | Twin Head Opposed Spindle Design |
| CNC Axes | - | X1/X2/Z1/Z2/Y + Optional C Axis | X1/X2/Z1/Z2/Y + Optional C Axis | X1/X2/Z1/Z2/Y + Optional C Axis |
| Description | Unit | DB 2000 | DB 3000 | DB 4000 |
|---|---|---|---|---|
| Maximum Workpiece Length | mm | 2000 | 3000 | 4000 |
| Maximum Workpiece Width | mm | 1200 | 1800 | 2200 |
| Maximum Workpiece Height | mm | 1000 | 1500 | 1800 |
| Maximum Job Weight | kg | 4000 | 8000 | 12000 |
| Description | Unit | DB 2000 | DB 3000 | DB 4000 |
|---|---|---|---|---|
| Number of Spindles | Nos | 2 | 2 | 2 |
| Spindle Diameter | mm | 110 | 130 | 160 |
| Spindle Taper | - | BT50 | BT50 | BT50 |
| Spindle Speed Range | rpm | 0–3000 | 0–2500 | 0–2200 |
| Main Motor Power (Each) | kW | 22 | 30 | 37 |
| Spindle Cooling | - | Oil Chiller | Oil Chiller | Oil Chiller |
| Description | Unit | DB 2000 | DB 3000 | DB 4000 |
|---|---|---|---|---|
| X1/X2 Axis Travel | mm | 1200 | 1600 | 2000 |
| Y Axis Travel | mm | 1000 | 1400 | 1800 |
| Z1/Z2 Axis Travel | mm | 800 | 1000 | 1200 |
| W Axis (Optional) | mm | 400 | 500 | 600 |
| Description | Unit | DB 2000 | DB 3000 | DB 4000 |
|---|---|---|---|---|
| Table Type | - | Fixed Hydraulic Clamping Table | Fixed Hydraulic Clamping Table | Fixed Hydraulic Clamping Table |
| Table Size | mm | 2200 × 1200 | 3200 × 1600 | 4200 × 2200 |
| Table Load Capacity | Ton | 5 | 10 | 15 |
| Rotary Table Option | - | Optional | Optional | Optional |
| Description | Unit | DB 2000 | DB 3000 | DB 4000 |
|---|---|---|---|---|
| Rapid Traverse | m/min | 12 | 10 | 8 |
| Cutting Feed | mm/min | 1–6000 | 1–5000 | 1–4000 |
| Feed Synchronization | - | Included | Included | Included |
| Description | Unit | DB 2000 | DB 3000 | DB 4000 |
|---|---|---|---|---|
| Tool Magazine Capacity | Nos | 30 × 2 | 40 × 2 | 60 × 2 |
| Tool Change Type | - | Automatic | Automatic | Automatic |
| Maximum Tool Weight | kg | 20 | 25 | 30 |
| Description | Unit | DB 2000 | DB 3000 | DB 4000 |
|---|---|---|---|---|
| Positioning Accuracy | mm | ±0.015 | ±0.020 | ±0.020 |
| Repeatability | mm | ±0.008 | ±0.010 | ±0.010 |
| Parallelism Between Heads | mm | 0.01 | 0.015 | 0.02 |
Simultaneous machining from both sides for reduced cycle times.
Twin-channel CNC control ensures repeatable accuracy.
Rigid machine design for continuous industrial operation.
Supports boring, drilling, milling, and facing applications.
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5000+
MACHINE INSTALLATIONS
350+
ENGINEERING EXPERTS
Standard delivery timelines generally range from 24 weeks, depending on configuration and optional accessories.