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EPRA
CNC · Lateral

EPRA

EP 11-RA · ½" Tool Interface · Water cooled
2.2–3.3 kW
Power range
10,000 rpm
Max speed
5.5–7.5 Nm
Torque
Water cooled½"ManualIP55
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What it's built for

Where the EPRA fits

Continuous wet duty, fully liquid cooled
Water cooling gives the compact ½" body its highest continuous thermal capacity, for runs where even a servo-driven fan is not enough or the spindle sits in an enclosed, hot part of the machine.
Coolant through the tool, sealed and maintenance-light
The contactless rotating water joint delivers coolant through the bored shaft to the tool without contact seals to wear, suited to sustained wet cutting of hard materials at small scale.
Top of the EP cooling ladder, same mount
The water-cooled member of the EP family, on the same ½" compact body as the air-cooled EP and servo-ventilated EP S, so a head built for EP takes the full cooling range without rework.
Where a water circuit is not available, EP S holds sustained duty on servo air and EP runs lighter cuts air-cooled, both on the same ½" mount. Use the motor selector to compare.
Technical data · Catalogue ed. 2024.09

Full specifications

Technical specifications
Power (min / max)
2.2–3.3 kW
Torque
5.5–7.5 Nm
Max speed
10,000 rpm
Tool attachment
½"
Motor type
AC Induction
Cooling
Water cooled
Lubrication
Maintenance-free bearings
Tool change
Manual
IP rating
IP55
Mount type
Lateral
Standard features
Compact design · Water-cooled body · Bored shaft for through-tool water passage
Variant table
Ref.kWCvNmA @400Vrpm nomF nom Hzrpm maxF max HzPoleskg
EP11-RA (50Hz)2.237.55.22,7905010,000166220
EP11-RA (100Hz)3.34.55.57.55,78010010,000166220

Standard configurations shown. Other pole counts and power ratings available on request. Performance data obtained by numerical simulation.

Standard & Optional

Features & Options

Standard features
  • Compact design
  • Water-cooled body
  • Bored shaft for through-tool water passage
  • Contactless rotating water joint
  • Inverter-duty insulation system
Options & Accessories
  • High-speed bearings
  • Custom shaft (ER DIN6499 or Whistle notch)
Upgrade path

Same mount, more capability

EP
1–10.3 kW · 10,000 rpm · ½"
EPRA
2.2–3.3 kW · 10,000 rpm · ½"

All families in this path share the same mount geometry. Design the machine head for the highest capability you might ever need: start with the base family and upgrade without structural rework. Use the motor selector to compare families.

Full technical datasheet in the VEM library
Dimensional drawings and complete variant data, available on request. Documents are updated periodically.