Heavy milling spindle DGZX-32508/75BBT

motorizedHSK-A 100air-cooled

Product overview
The DGZX-32508/75BBT is the BBT50 version of Haozhi's 325 mm, 8,000 rpm spindle platform. It is built for heavy milling of large workpieces where established BBT50 tooling, cutting stability and high torque take precedence over extreme rotational speed.

Key performance table
Diameter: Φ325 mm
Maximum speed: 8,000 rpm
Torque (S1): 840 N·m
Torque (S6-40%): 1,260 N·m
Power (S1): 75 kW
Power (S6-40%): 112.5 kW

Technical data
Model: DGZX-32508/75-BBT / DGZX-32508/75-HSK
Tool interface: BBT50 / HSK-A100
Bearing lubrication: grease
Motor system: double-winding asynchronous
Voltage: 380 V
Maximum speed: 8,000 rpm
Spindle coolant: water (recommended)
Tool outer coolant (ring spray): water / oil / oil mist / air
Tool inner coolant (center cooling): water / oil / oil mist / dry air
Tool change: hydraulic
Sensors: motor temperature (KTY84-130, PTC), bearing temperature (PT100), encoder (Sin/cos 1VPP), tool-clamping monitor (24 V, PNP, NO); optional: vibration, displacement
Weight: 450 ± 15 kg

Characteristics / specifications

• Available models: DGZX-32508/75-BBT (BBT50) and DGZX-32508/75-HSK (HSK-A100)
• Body diameter: 325 mm
• Primary tool interface: BBT50 (option HSK-A100)
• Maximum rotational speed: 8,000 rpm
• Continuous power (S1): 75 kW
• Continuous torque (S1): 840 N·m
• High intermittent power (S6-40%): 112.5 kW; torque: 1,260 N·m
• Voltage: 380 V
• Bearing lubrication: grease
• Recommended spindle cooling: water
• Tool cooling (outer/inner): water, oil, oil mist or air (inner supports dry air)
• Tool change: hydraulic
• Encoder: Sin/Cos 1VPP
• Tool clamping monitor: 24 V, PNP, normally open
• Optional sensors: vibration, displacement
• Approx. net weight: 450 ± 15 kg