Crane Safety Disc Brake

Working Principle of SBD-D Series Safety Brakes: When pressure oil from the hydraulic station is fed into the brake cylinder under the control of the solenoid valve, the oil further compresses the disc springs and simultaneously pushes the piston rod to actuate the two brake arms to expand outward, thereby releasing the braking torque.

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Description

SBD-D Series Safety Brakes

Model Designation

product-966-506

Installation and overall dimensions

product-1200-977

Installation diagram

product-1200-916

Braking torque: M=μ×d1×F (N·m)

In the formula: μ - friction coefficient calculation value μ=0.35

d1- Calculate the friction diameter of the brake disc, (mm)

F- total clamping force during braking (KN)

Note: 1) D-brake disc diameter D > 600 (mm)

2) d2- Maximum allowable outer diameter of the drum or connecting hub, (mm)

SBD-D series safety brakes technical parameters

Product model	Total clamping force	Braking force	Working pressure of oil cylinder	Open valve oil volume	Opening gap	Weight	A(mm)	C(mm)	d1(mm)	d2max (mm)	D(mm)
SBD120-D	120	86	8	150	0.75-1.5	193	Sin20(D/2-45)+320.5	Cos20(D/2-45)+16.5	ΦD-90	ΦD-180	≥600
SBD240-D	240	172	10	170	0.75-1.5	310	Sin20(D/2-75)+345	Cos20(D/2-75)+20	ΦD-150	ΦD-300	≥600

SBD-D series safety brakes Dimensions

Product model	B(mm)	L(mm)	h(mm)	e(mm)	n(mm)	k(mm)	F(mm)	P(mm)	H(mm)	m(mm)	w(mm)	L1(mm)	L2(mm)	L3(mm)	d(mm)
SBD120-D	80	320	320.5	16.5	45	240	330	170	485	75	240	190	220	115	32

SBD240-D	140	400	345	20	60	300	420	190	560	120	360	225	255	160	38

Note: Specific models and structural dimensions are subject to change without prior notice.

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