Machining motor spindle ES351

spindleAC motorelectric

Overview
The ES351 electrospindle, designed and manufactured by HSD, is intended for high-speed machining of a wide range of materials and metals. It features an asynchronous motor and liquid cooling to support continuous operation at 6.5 kW (S1) and a maximum speed of 40,000 rpm. The spindle accepts HSK tool interfaces and is adapted for industrial CNC integration.

Technical specifications

• Model: ES351
• Rated power (S1): 6.5 kW
• Peak power (S6 40%): 7.5 kW
• Rated torque (S1): 5.2 Nm
• Peak torque (S6 40%): 6 Nm
• Maximum speed: 40,000 rpm
• Body diameter: 110 x 111 mm
• Tool interfaces available: HSK E32, HSK E40
• Motor type: Asynchronous
• Cooling method: Liquid cooling
• Bearings lubrication: Grease
• Weight: 15 kg
• Coolant-through-shaft: No
• Air tool: No
• Vibration sensor: Not included
• Thermal sensor on front bearings: Not included
• Shaft kit: Not included
• Aggregate anti-rotation flange: Not included

Accessories

• Tool fork for toolholders ISO30 / ISO40 and HSK F63
• Toolholders ISO30 - ER32
• Toolholders HSK F63 - ER32
• Water chiller (refrigerator)
• Water/air heat exchanger

Trade shows and events

• INDIAWOOD 2026 — 26 February 2026 / 02 March 2026 — Bangalore International Exhibition Centre
• BIEMH 2026 — 02 March 2026 / 06 March 2026 — Bilbao Exhibition Centre

Technical characteristics

• Model: ES351
• Continuous power (S1): 6.5 kW
• Peak power (S6 40%): 7.5 kW
• Continuous torque (S1): 5.2 Nm
• Peak torque (S6 40%): 6 Nm
• Max speed: 40,000 rpm
• Body diameter: 110 x 111 mm
• Available tool interfaces: HSK E32, HSK E40
• Motor: Asynchronous
• Cooling: Liquid
• Bearings lubrication: Grease
• Weight: 15 kg
• Coolant-through-shaft: No
• Air tool: No
• Vibration sensor: Not included
• Thermal sensor on front bearings: Not included