Schubeler DS-51-DIA HST with DSM4335-950 Special Order


Item #: SCH-DS51HSTDSM4335-950
Manufacturer: Schubeler
Manufacturer’s Product Number: SCH-DS51HSTDSM4335-950
Condition: New

SKU: SCH-DS51HSTDSM4335-950 Categories: , , Tag:


Special Order the Schubeler DS-51 HST EDF with unparalleled performance and craftsmanship.  By purchasing this edf, please allow an estimated 5 weeks for delivery.  The edf units are custom made per order at the factory and tested.

With the DS-51-DIA HST Schubeler launches a completely new jet propulsion system. The system is based on a new 12-blade axial compressor wheel which is driven by the all new Schubeler electronic commutated motor.

The 90mm axial compressor generates a surpassing compression ratio and can therefore be integrated much more efficiently in huge jet models than classic ducted fans. The rotational speed level is only 28,000 rpm at an impressive exhaust speed of 75-90m/s and a thrust of 38-50N. This high thrust impulse is therefore generated by a high exhaust speed and a high inner efficiency of the axial fan stage. In figures that means you can integrate this fan in jets up to 90mm. The design of the 12-blade axial compressor wheel is based on speed ratios which are similar to the ratios of a full scale turbofan. That results besides a high efficiency in a perfect optical scale appearance and a sound which can only be compared to full scale jet engines. A silent whispering and fizzling of the axial compressor at idle rpm is predominated by an impressive jet stream noise coming from the exhaust at full throttle.

An extraordinary challenge was the development of an electronic commuted DC motor that perfectly fits to the axial fan. The 12-blade compressor demands an impressive torque of 2,2Nm at 28,000rpm which can only be generated by a high torque motor of high diameter and shorter length. Consequently the new DSM4335 Schubeler motor is fully integrated in the axial fan to assign a huge area for the main airflow. In addition to that the motor is perfectly aligned and balanced.

The motor is cooled and needs no efficiency decreasing internal ventilator. The motor is based on a two pole design to allow a flexible fit of the motor characteristics to the needs of the axial fan. Nevertheless the winding sit in a 12 slot stator to increase the torque and to avoid any winding deformation at high temperatures. The magnet is attached to a sheeted magnet holder and reinforced by a bandage made of IMS carbon fiber which allows a high rpm tolerance. The whole motor design was optimized in respect of excessive heat tolerance and of course a high efficiency even at high currents.

The mechanical design of the Schubeler DSM4335 motor is based on established mechanical engineering and distinguishes itself by a shaft mount consisting of a fixed bearing and a prestressed floating bearing. The result is a very high durability in combination with a low mechanical soundscape which allows the whispering of the axial fan to predominate even at idle rpm.

The conjunction between motor and axial fan is made by 4 handmade carbon stators which also guide the 3 motor phases through the UHM carbon sandwich shroud. The conversion of shaft power to stream power is accomplished by 12 handmade carbon rotor blades which sit form-closed in precision aluminum swivels.


OPTIONAL FULL COMBO: EDF UNIT, DSM BRUSH LESS MOTOR, YGE 90HV ESC.  The DS-51-DIA HST® comes with the DSM4335-950 brush less motor and a 90HV YGE esc programmed and wired. The combo comes programmed, wired and test run from the Schubeler factory.

Option 2: Carbon fiber bell shaped/ straight intake ring

DS-51-DIA HST with DSM4335-950 Technical data:

Inner shroud diameter: 93mm
Fan swept area: 51cm²
Weight incl. motor, wires, connectors
Secure Fan Fix: 540g
Thrust range: 38-50N/ 8.5-11lbs (Estimated)
Exhaust speed range: 75-90m/s
RPM range: 28.000-32.000rpm
Input power: 1,95-3,35kW
Allowed battery: 10-12S 4000mAh
Overall efficiency: 67-70%

OPTIONAL Brush less Speed Control: YGE 90HV wired and programmed from Schubeler.

WARNING: Operating the motor outside of the specifications listed above can either damage the motor, battery or esc. It is important that these components are set up properly. Failure to do so can void the warranty. It is strongly encouraged to use a Watt Meter to test the watt and amp performance when setting up a new system. If the output is above the factory recommended specs, then it needs to be adjusted by the esc. The timing and throttle settings on the esc can help to set the appropriate levels.

Insurance Note:  Fan Jets USA recommends the purchase of shipping insurance. If insurance is not purchased and the package is lost or damaged, the most that can be claimed with the USPS and awarded to the purchaser (shipment recipient) is $50.00.  Fan Jets USA is not responsible for reimbursing the purchaser the difference of an order of any amount.  Shipping charges are not included in an insurance claim per USPS guidelines.

CA Residents: WARNING: Cancer and Reproductive Harm –

Additional information

Weight 2.5 lbs
Dimensions 9 × 9 × 8 in
Schubeler Optional Parts

Intake Ring/YGE 90HV ESC, None, Schubeler Intake Ring, YGE 90HV ESC

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