| Sl. No. | Parameter | Required Specification |
|---|---|---|
| 1 | Machine Type | Heavy-duty Geared Head Drilling cum Milling Machine |
| 2 | Machine Construction | Rigid close-grained cast iron body with ribbed structure |
| 3 | Drive Type | Hardened and ground box-type geared drive |
| 4 | Mounting | Floor mounted with rigid machine stand |
| 5 | Operations Possible | Drilling, face milling, end milling, tapping, boring, and reaming |
| 6 | Column Type | Dovetail column with precision machined guideways |
| 7 | Guide Way Surface | Hardened and precision ground |
| 8 | Table Movement System | Precision lead screw driven |
| 9 | Lubrication System | Centralized lubrication system |
| 10 | Coolant System | Integrated recirculating coolant system |
| 11 | Machine Illumination | Flexible LED/Halogen working lamp |
| 12 | Electrical Protection | MCB / Overload Protection / Emergency Stop |
| 13 | Noise Level | ≤ 80 dB during operation |
| 14 | Maximum Machine Vibration | ≤ 0.05 mm at spindle nose during no-load running |
| 1 | Spindle Type | Precision ground alloy steel spindle |
| 2 | Spindle Taper | MT-4 |
| 3 | Spindle Runout Accuracy | ≤ 0.02 mm at spindle nose |
| 4 | Maximum Drilling Capacity | Ø 45 mm or higher |
| 5 | Face Milling Capacity | Ø 80 mm or higher |
| 6 | End Milling Capacity | Ø 32 mm or higher |
| 7 | Tapping Capacity | Ø 4 to Ø 12 mm |
| 8 | Boring Capacity | Ø 30 to Ø 80 mm or higher |
| 9 | Reaming Capacity | Ø 25 mm |
| 10 | Spindle Stroke | 130 mm or higher |
| 11 | Spindle Sleeve Diameter | Ø 75 mm |
| 12 | Spindle Feed Type | Manual fine feed and rapid feed |
| 13 | Fine Feed Graduation | ≤ 0.02 mm per division |
| 14 | Number of Spindle Speeds | Minimum 6 with changeable knob |
| 15 | Spindle Speed Range | 80 – 1250 RPM or better |
| 16 | Spindle Bearing Type | Precision taper roller / angular contact bearings |
| 17 | Headstock Swivel | ±90° Vertically |
| 18 | Headstock Axial Travel | Minimum 400 mm |
| 19 | Distance: Spindle Nose to Table | Minimum 450 mm |
| 20 | Distance: Spindle Axis to Column | Maximum 260 mm |
| 1 | Table Size | Minimum 800 × 240 mm |
| 2 | Table Surface Finish | Precision ground |
| 3 | Number of T-Slots | Minimum 3 |
| 4 | T-Slot Size | 14 mm to 16 mm |
| 5 | Longitudinal Travel (X-axis) | Minimum 500 mm |
| 6 | Cross Travel (Y-axis) | Minimum 175 mm |
| 7 | Vertical Travel (Z-axis) | Minimum 350 mm |
| 8 | Table Feed Mechanism | Lead screw with graduated handwheel |
| 9 | Lead Screw Backlash | ≤ 0.20 mm |
| 10 | Table Flatness | ≤ 0.04 mm over full length |
| 11 | Table Parallelism | ≤ 0.03 mm |
| 12 | Table Load Capacity | Minimum 100 kg |
| 13 | Gib Type | Adjustable tapered gibs |
| 14 | Handwheel Graduation | Maximum 0.05 mm per division |
| 1 | Spindle Radial Runout | ≤ 0.02 mm |
| 2 | Spindle Axial Runout | ≤ 0.02 mm |
| 3 | Table Surface Flatness | ≤ 0.04 mm |
| 4 | Perpendicularity of Spindle Axis to Table | ≤ 0.05 mm / 300 mm |
| 5 | Parallelism of Longitudinal Movement | ≤ 0.03 mm / 300 mm |
| 6 | Cross Feed Accuracy | ≤ 0.03 mm |
| 7 | Repeat Positioning Accuracy | ≤ 0.02 mm |
| 8 | Surface Finish Achievable | Up to Ra 1.6 µm |
| 1 | Main Motor Power | Minimum 1.5 kW |
| 2 | Motor Duty | Continuous Duty S1 |
| 3 | Supply Voltage | 415V ±10%, 50 Hz, 3-Phase |
| 4 | Control Voltage | 24V / 110V as applicable |
| 5 | Motor Protection | Overload Relay Protection |
| 6 | Electrical Panel Standard | IP54 Minimum |
| 7 | Emergency Stop | Mushroom Type Push Button |
| 8 | Coolant Pump Motor | Minimum 0.09 kW |
| 9 | Wiring Standard | IS / IEC Compliant |
| 10 | Earthing Arrangement | Dedicated Earthing Terminal |
