H. Kuhnke Ltd, Andover, UK
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D Series Rotary Solenoid

Rotary Solenoids > D Series

This is a round design which is available in 6 standard body sizes, defined by diameter, The range is 25/35/50/60/75 & 100mm diameter.

Although any angle of travel up to 95° can be specified the range provides for 5 standard movements, 25°, 35°, 45°, 65° and 95°. Each is fixed by design.

The choice of body size will depend on the torque your application needs. D series can develop up to 195Ncm (D92, end stroke torque on 14% duty cycle). Mechanical options include through-shaft, or single-shaft, clockwise or anti-clockwise rotation, and the position of a return spring(if any).

. Any DC operating coil voltage is possible, althogh the most common is 24VDC. AC operation can be achieved using a silicon bridge rectifier. In the standard Kuhnke D series, a 205 voltage is shown, representing the performance expected when using 230VAC supply and a silicon bridge rectifier.

As a guide to body size needed to achieve a particular torque, select the appropriate data sheet for download from the list below.

Remember that rotary solenoids have a starting torque (shown in these tables as MA) and an end torque which is higher(ME). The available torque depends on duty cycle (please see our glossary for explanations) Expressed here as a percentage

D2: > 2.85Ncm end torque, 4% duty cycle
D2: > 0.5Ncm end torque, 100% duty cycle
D3: > 6.9cm end torque, 4% duty cycle
D3: > 2.1Ncm end torque, 100% duty cycle
D5: > 26Ncm end torque, 5% duty cycle
D5: > 11.5Ncm end torque, 100% duty cycle
D6: > 45Ncm end torque, 5% duty cycle
D6: > 25Ncm end torque, 100% duty cycle
D7: > 89Ncm end torque, 5% duty cycle
D7: > 48Ncm end torque, 100% duty cycle
D9: > 195Ncm end torque, 14% duty cycle
D9: > 125Ncm end torque, 100% duty cycle

The above illustrations are taken for 25° angular travel, end torque. Starting torques are less, and all torque ratings reduce, the greater the angular travel

PDF Datasheets
D2 Rotary Solenoids	79kb
D3 Rotary Solenoids	81kb
D5 Rotary Solenoids	78kb
D6 Rotary Solenoids	82kb
D7 Rotary Solenoids	79kb
D9 Rotary Solenoids	82kb

 

Kuhnke D series circular design. 5 standard body sizes. Please see the PDF links shown at the bottom of this page for the full technical data of each body size

Part number explanation. The different variations of D series solenoids are coded into the part number which is is made up of 9 components. We have shown these here in the headings A to I. Explanations are shown below the table.

A	B	C	D	E	F	G	H	I
D	2	2	L	O	L	F	24VDC	100%ED
	3	3	R	R	R	M	205	SP%ED
	5	4	B	L	B	N	SP
	6	6
	7	9
	9

A = Design Series, in this case all D
B = Defines body diameter: 2 = 25mm, 3 = 35mm, 5 = 50mm, 6 = 60mm, 7 = 75mm, and 9 = 100mm
C = Angular travel: 2 = 25°, 3 = 35°, 4 = 45°, 6 = 65°, 9 = 95°
D = Direction of rotation: L = Anti-clockwise, R = Clockwise, B = Through-shaft
E = Shoulder: O = Standard withough mounting ring, R = Optional, L = Optional
F = Return Spring: L = On anti-clockwise shaftend, R = On clockwise shaft end, O = No return spring fitted, B = Spring on both sides
G = Connections: F = Flying leads, standard 20cm, M = Solder terminal box, N = Plug for push on connectors
H = Nominal voltaage, usually 24VDC
I = Duty Cycle(ED is an abbreviation of the German Einschaltdauer)