Product information
GRAUPNER COMPACT BRUSHLESS motors.
A range of high-performance BRUSHLESS motors. The impressive feature of this series of power plants is their enormously high torque, and it is in direct-drive applications that they show their full power potential. GRAUPNER COMPACT motors are brushless external-rotor (out-runner) types, i.e. the outer motor jacket rotates and drives the motor shaft. This design principle resultsin ultra-compact electric motors capable of an outstanding performance without recourse to a gearbox. An additional advantage: the weight of GRAUPNER COMPACT motors is very low compared to that of conventional motors.
Ultra-light GRAUPNER COMPACT
Ultra-light GRAUPNER COMPACT motors with weights below 45 g, i.e. less than a SPEED 300 electric motor, and therefore an excellent choice for lightweight Depron or Styrofoam models. The preferred energy source is a 2-cell or 3-cell Li-Po pack.
Specification
Nominal voltage 7.2 V
Operating voltage range 7.2 ... 11.1 V
No-load speed 8600
Revs. / Volt 1200
No. of winds 30
Current drain at max. efficiency* 5 ... 8 A
Maximum efficiency 73%
Permissible direction R and L
No. of poles 10
Overall length approx. 40 mm
Case length, excl. shaft 23 mm
Diameter approx. 29 mm
Free shaft length approx. 14 mm
Shaft diameter 3.17 mm
Weight approx. 34 g
Recommended propellers 10x5.5--9x4
Recommended speedcontroller 10A
Tel:+30 210 5444 204 Fax: +30 210 5444 384
E-mail: info@diamond-models.gr
Working Hours: M-T-W-T-F from 9:30-20:30 Sat. from 9:30-15:00
Address: Korae 8 & Kapodestreou, Egaleo,Athens,Greece,Zip:122 41