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Pancake or Flat Motors are available from both maxon and Kollmorgen. Electromate supplies maxon brushless pancake motors throughout Canada’s four distinct industrial regions: the Atlantic Provinces, Central Canada, the Prairies, and the West Coast.
The electronically commutated maxon EC flat motors are particularly noteworthy for their excellent torque handling characteristics, high performance, extremely wide speed range and, of course, their unsurpassed service life.
These compact and extremely powerful EC flat motors are ideal if space is limited. With an operating range of 0.2 - 600 Watt, the EC Flat Motor Series are external rotor motors that run very quietly.
Pancake Motor Features:
Long service life
Flat design for when space is limited
Comparatively high inertia
Motor characteristics may vary from the strongly linear behavior
Hall sensor signals utilizable for simple speed and position control
Winding with iron core and several teeth per phase in the stator
Low detent torque
Good heat dissipation, high overload capacity
Multipole Neodymium permanent magnet
Smaller commutation steps
Simple operation with DC voltage (EC-i)
Fewer connections than with the EC motor (EC-i)
No additional electronics required (EC-i)
Output power reductions possible due to less space for power electronics (EC-i)
High-powered models are also available for the EC-I. Please inquire for more information
EC vs EC-i Comparission Chart
Ø 9.2, 14, 20, 32, 45, 60, and 90 mm
0.5 - 600 W
Attractive price/performance ratio
High torques due to external, multipole rotor
Excellent heat dissipation at higher speeds thanks to open design
Ø 30, 40, and 52 mm
20 - 200 W
Highly dynamic due to internal, multipole rotor
Mechanical time constants below 3 ms
High torque density
Speeds of up to 15 000 rpm
Kollmorgen ServoDisc™ Pancake Motors
ServoDisc™ Pancake Motors from Kollmorgen differ from conventional brush DC servomotors in their unique slotless disc armature.
This design delivers a concentrated level of performance in both incremental motion and continuous speed applications that conventional ironcore motor designs can’t achieve.
ServoDisc™ motor technology offers a slotless, ironless design with zero cogging for precision at all speed ranges, including single-digit rpms. The flat, thin armature provides for a compact form factor while enabling quick acceleration, deceleration and direction changes.
The low-voltage DC design allows operation with simple drive electronics and a basic, convenient power source including battery power.
Kollmorgen Pancake Motor Features:
Common modification options include application-specific mountings and connectors, gearboxes and feedback devices, sealing and ruggedization, materials and coatings, and electromagnetic configurations
Co-engineered modifications available to suit demanding applications such as life-critical medical devices, military equipment, semiconductor wafer manufacturing and delicate material handling
A broad torque range, from 0.12 N-m to 33 N-m, accommodates a wide variety of applications
Torque is nearly instantaneous from start of rotation, with a flat torque curve throughout the speed range
Long brush life, up to 1.2 billion revolutions or more
Absolutely zero cogging, even at very low rpms
High acceleration, from 0 to 4,000 rpm in under 60 degrees of rotation and as little as 10 milliseconds
Peak torque of up to 10 times continuous torque without risk of demagnetization
Small axial size is ideal for portable equipment and machines with tight clearances