Disc brakes
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INDU S T R IA L DI S C B R AK E S > PRODUCT BROCHURE ADVAN C E D BRAKIN G T E C HNO L O G Y size="-2">

wiflex Limited, with headquarters inTwickenham, England, specialise in the design, manufacture and supply ofAdvanced Braking Technology for Industrial Applications. With extensive in-house design,engineering, manufacturing and assembly facilities,Twiflex have a well-deserved reputation for quality and precision.Founded in 1946, Twiflex have suppliedapproximately 500,000 brakes, frequently forcritical applications, around the World. From textile machines in Bolton to the World's deepestmine shaft in South Africa, Twiflex brakes enjoy a premier status amongst Engineers and Operatorsin every...

APPLICATIONSBRAKE SYSTEM OVERVIEW BRAKE CALIPER RANGE > 246811 15 20 25 28353637383940 DISC AND HUB ASSEMBLIESPNEUMATIC CONTROLLERS > INTENSIFIERSMONITOR UNITS HYDRAULIC POWER UNITSBRAKING CALCULATIONS > In accordance with our policy of continual product improvement we reserve the right to amend thespecification of any Twiflex product without prior notification.All dimensions are nominal 1 >

Disc brakes are used on conveyors for four mainreasons: An emergency stopFor normal stopping and parkingWhere one conveyor feeds another and there is a risk of over spillWherever there exists a risk of personal injury particularly under ground The brakes may be fitted to the tail drum, drivingdrum or motor shaft, but with long over groundconveyors, Twiflex recommend that the brake is fitted to the up stream end to prevent a catapulteffect due to reversal of belt tension.Twiflex has developed brake controllers rangingfrom simple on/off to the more sophisticated systemsthat interface with...

Marine main propulsion > Twiflex brakes are fitted to the mainpropulsion system for three mainreasons: Maintenance purposes,particularly while under wayTo assist and improve manoeuvrability Safety:the ability to stop the propellers turning in a very short time The brake is usually mounted on thegearbox output flange, particularly when reversing gears are fitted, often in conjunction with Twiflex air startclutches and flexible couplings. Twiflexbrakes are used on Naval ships around the world, in particular the Royal Navy,and by many tug and merchant fleetoperators.Twiflex disc brakes are...

Twiflex offer the largest range ofindustrial disc brake calipers in theworld. The majority of directacting brake calipers are fitted witha retraction device. The springapplied brakes are retracted bypneumatic or hydraulic pressure or electrically.In general, pneumatic brakes arebest suited for stopping duties inthe low to medium torque range and for tension control applications, whilst the hydraulicbrakes meet the high torquerequirements. Spring applied brakes are used where brakingmust be maintained in the event ofsupply system failure. Mechanically applied brakes areappropriate where no...

Twiflex offer several types ofelectro-hydraulic power units.These units require carefulselection since pressure andcapacity must be compatible withboth the type and number of calipers employed. For situations where the use of an electro-hydraulic powerunit is not appropriate, Twiflex offer the following: Foot pedal unitsAir hydraulic intensifiersCombination intensifiers The LC range of electro-hydraulicpower units has been designed to provide a basic on/off control fora range of Twiflex spring appliedand direct acting calipers.The MP range of electro-hydraulicpower units has been designed...

13720.5 to disc edge 7313512.7165 2 holes 14(M12-.87Nm) 121 > WIFLEX WIFLEX

from thehorizontal it should be fitted with an equalising link.This applies also to calipers used on vertical shaft installations. Ranges of standard discs are available from Twiflex, (see section 4). Minimum disc diameter for the MR caliper is 250mm and the MR2 is 300mm. The ratings shown on the graphs are based on fully bedded and conditioned brake pads with nominal friction coefficient ҵ= 0.4. Twiflex disc brakes must be used with Twiflex asbestos free brake pads. Effective Disc Radius = Actual Disc Radius (m) - 0.03m 137 233106.4106.4 36.5 to disc edge36.5 to disc edge >

The MXSE is suitable for most medium to heavy duty holding and emergency stop applications. The design ensures long life,with fully potted coils protecting against harsh environments. A wide range of coil voltages is available,from 12VDC to 250VDC the standard units being 100VDC.The thruster contains two electromagnet coils.A release coil (high current) and a holding coil (low current).Power is simultaneously applied to both coils in order to release the brake.After 1- 2 seconds the supply voltage to the release coil is removed.The holding coil remains energised,maintaining the brake in its...

Air Pressure ֖ bar T WIFLEX WIFLEX TYPE GMX TYPE GMX BRAKE CALIPER BRAKE CALIPER GMX GMX TWIFLEX TWIFLEX 610 710 810 91576 5 4 3 2 1 0 Disc Diameter mm > T WIFLEX WIFLEX Air Pressure ֖ bar TYPE GMX TYPE GMX BRAKE CALIPER BRAKE CALIPER GMX GMX TWIFLEX 610 710 810 91576 5 4 3 2 1 0 > Air Pressure ֖ bar T WIFLEX WIFLEX TYPE GMX TYPE GMX BRAKE CALIPER BRAKE CALIPER GMX GMX TWIFLEX TWIFLEX 0 50 100 150 200 250 300 >

610 710 810 91576 5 4 3 2 1 0 > 344 500340 T WIFLEX WIFLEX TYPE GMX TYPE GMX BRAKE CALIPER BRAKE CALIPER Disc Diameter mm > Air Pressure ֖ bar GMX GMX TWIFLEX TWIFLEX 0 100 200 300 400 500 600 700 800 > Force on Lever ֖ N Disc Diameter mm > T WIFLEX WIFLEX TYPE GMX TYPE GMX BRAKE CALIPER BRAKE CALIPER GMX 0 100 1000 1500 2000 2500 3000 3500 > TWIFLEX TWIFLEX

TYPE GMX TYPE GMX BRAKE CALIPER BRAKE CALIPER > GMX GMX TWIFLEX TWIFLEX

610 710 810 91501 2 3 4 5 6 Disc Diameter mm > 402374 Air Pressure ֖ bar T WIFLEX WIFLEX TYPE GMX TYPE GMX BRAKE CALIPER BRAKE CALIPER Disc Diameter mm > GMX GMX TWIFLEX TWIFLEX 0 1000 2000 3000 4000 5000 6000 > 610 710 810 9150102030 40 50 60 70 Disc Diameter mm > Oil Pressure ֖ bar Disc Diameter mm > T WIFLEX WIFLEX TYPE GMX TYPE GMX BRAKE CALIPER BRAKE CALIPER GMX GMX TWIFLEX TWIFLEX 0 1000 2000 3000 4000 5000 6000 >