SUNRISE - Magnetic clutch manufacturers for over 20 years in web guide control system industry.

PMC Magnetic Particle Clutch Micro Series Shaft 1

PMC Magnetic Particle Clutch Micro Series Shaft 2

PMC Magnetic Particle Clutch Micro Series Shaft 3

PMC Magnetic Particle Clutch Micro Series Shaft 4

PMC Magnetic Particle Clutch Micro Series Shaft 5

PMC Magnetic Particle Clutch Micro Series Shaft 6

PMC Magnetic Particle Clutch Micro Series Shaft 7

PMC Magnetic Particle Clutch Micro Series Shaft

The Magnetic powder clutches and brakes of Sunrise Group, which use magnetic iron powder for transmitting torque, offer advantages such as a smooth fluid clutch and high efficiency upon coupling of the friction plate clutches. Sunrise Group is one of the leader brands of magnetic particle clutches and magnetic particle brakes in China. The magnetic particle clutch and brakes are now indispensable for tension control as actuators for winding and unwinding long materials such as paper, thread, electric wire, various sheets, and tape. They are also suitable for buffer startup, power absorption, and overload safety devices (torque limiter).

Brand:

Sunrise Group

Rated Torque:

0.5 to 10 N∙m

Delivery Term:

EXW

Certification:

Place of Origin:

Dongguan

Packing:

Export Carton/Case

Delivery time:

1-3 days

Inquiry

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Fig.1 Magnetic particle clutch structure diagram (typical example)

Micro magnetic particle clutch structure and principle of operation

● The Micro magnetic particle clutch structure is shown in Fig. 1. The drive member linked to the input side and the driven member linked to the output side are disposed concentrically across a powder gap.

● The powder gap is filled with powder (magnetic iron powder), and the coil for passing a magnetic flux to the powder is built in the stator, and it is designed to feed direct current from outside through the lead wire.

● While the drive member is rotating, when a current flows in the coil, a magnetic flux is generated as indicated by broken line in the drawing, and the powder is linked like a chain along the magnetic flux, and its coupling force the driven member is driven, and the torque is transmitted to the output side.

● When the exciting current is cut off, the magnetic flux disappears, and the coupling force of the powder is eliminated, thereby cutting of transmission of powder to the driven member.

Magnetic particle clutch Feature

Easy control over a wide range

Transmission torque changes continuously in response to changes in the exciting current, and so can be easily controlled over a wide range.

Continuous slip operation

The powder enables continuous slip on the working surface as well as stable transmission torque regardless of the slip rotation speed.

Stable torque

Due to the shape of the operating surface and powder leakage prevention structure, the distribution of powder can be kept uniform and stable torque can be reproduced even if the current is repeatedly turned on and off.

Large heat capacity

The products using powder have excellent heat resistance and an ideal cooling structure, and so can be used even in harsh continuous slip operation.

Smooth connection and drive

With almost equal coefficients of static and dynamic friction, load-based acceleration/ deceleration can be obtained without shock at the time of complete connection.

Maintenance-free

Competitive advantage products will give you an edge over your competitors

Magnetic particle clutch

Model		PMC-5	PMC-10	PMC-20	PMC-50	PMC-100
Rated torque[kgf-m](N-m)		0.05(0.5)	0.1(1)	0.2(2)	0.5(5)	1(10)
Capacity DC24V (75°c)	Current(A)	0.35	0.47	0.55	0.8	1.0
	Power(W)	8.4	11.3	13	19	24
	No. of hours set(S)	0.02	0.03	0.055	0.055	0.09
Moment of inertia (kgcm²)	Input side	2.1*10^-1	3.45*10^-1	6.80*10^-1	1.83	5.3
Moment of inertia (kgcm²)	Output side	1.7*10^-2	4.6*10^-2	1.03*10^-1	4.0*10^-1	1.1
Weight(kg)		0.67	0.88	1.27	2.3	4.1
Area of heat release(cm)2		350
Maximum speed (r/min)		1800

Micro magnetic particle clutch dimension(unit:mm)

Model	PMC-5	PMC-10	PMC-20	PMC-50	PMC-100
L1	77	83	95	111	113
L2	16.5	18.5	22.5	25	32
L3	8.5	8.5	9.5	12	15
L4	4	4	4	4	5
L5	13.5	16	19.5	22	29
L6	28.5	29.5	34	37.5	46
L7	5.5	5.5	6.5	6	7
e1	10.5	12	15	18	24
e2	20	16	13	10	9
D1	70	76	85	100	128
D2	114	90	75	66	60
D3	50	56	65	80	98
D4(h7)	48	54	63	78	98
D5(h7)	40	42	48	60	80
D6	30	34	40	50	70
d(g6)	5	7	9	12	15
T	4.5	6.5	8.5	11.5	16.5

Magnetic Particle Clutch Mounting

(1) Fasten the fitting part of the mounting flange to the mounting plate and fix it.

(2) Always use an elastic coupling to connect the micro magnetic particle clutch and load shaft, and set the concentricity, perpendicularity, etc. of the shafts at this time within the allowable value of the elastic

coupling to be used.

(3) When mounting a pulley or the like, ensure it is within the range of allowable shaft load.

(4) The heat dissipation area of the mounting plate should be at least 350 cm2 or more.

(5) Pay attention to the length of the mounting screw on the input side (using a screw of the depth or more described in the external dimensions may damage the internal bearing).

Micro magnetic particle clutches exciting current VS torque

PMC Magnetic particle clutch exciting vs torque

Magnetic particle clutch application

PMC Magnetic Particle Clutch Micro Series Shaft 18

Textile machinery

Fiber twisters, treatment machines, weaving machines

PMC Magnetic Particle Clutch Micro Series Shaft 19

Metal fishing systems

Extruders, wire stretchers, presses, welders, steel wire retractors, cutters, pipe makers, wire winding machines

PMC Magnetic Particle Clutch Micro Series Shaft 20

Machine tool systems

Lathes, Millers, steel extruders, CNC lathes, specialized machinery

PMC Magnetic Particle Clutch Micro Series Shaft 21

Transportation equipment

Hoists, feeders, conveyors, rollers, winders

Paper- making systems

Bag-making machines, box-making machines, slitters, book-making machinery, cutters, copy paper machines

Magnetic powder clutch Exciting current VS torque

Other machinery

Printing mchinery, wood-working machinerylaminators,testing machinery,food processing machinery, Li-battery machinerytire machinery

Magnetic particle clutches idling torque

Even if the exciting current is interrupted completely, idling torque is generated due to mechanical losses arising from residual magnetism of the powder, grease of the bearing, and friction such as a seal.

Magnetic particle brakes cannot perform torque control below this idling torque.

In the case of magnetic particle clutches, idling torque refers to the torque caused by the output shaft when forced to rotate while being dragged by the input shaft (dragged torque). Magnetic particle clutches, like magnetic particle brakes, cannot perform torque control below this torque.

Since this idling torque depends on the model, refer to the specifications of each model.

Application scenarios

Web guide & tension control system testing machine

Others for magnetic particle clutch

(1) In the product (magnetic particle clutches and magnetic particle brakes) having a three-digit figure attached to the model’s name such as 001 in PMC-5-001, the mounting dimensions, voltage and other conditions are special, and may differ from the description herein, but the basic operation and handling cautions are common.

(2) The structural diagrams are representative examples, and may differ depending on the model and options including the specification. Inquire us for details.

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