SIMEM - Wetterhus

1 SIMEMVia Ronchi, 44 - 37046 MinerbeVerona - ItaliaTel. +39 0442-640014 Telefax +39 : SALES AND PARTS SERVICEC ustomer service is our priority!48 hours parts lead time to quality development and continuous improvements process, technical datas of this catalogue could result 06/99 GirardiCOMUNICAZIONE&STA M PATWIN SHAFTMIXERSTWIN SHAFTM ixing is the most critical phase ofall concrete production. By ensuring the most homogenousmix in the minimum mixing time, SIMEM Twin-Shaft Mixers provideeconomy, durability, and consi-stency unparalleled by any othermixer and the worldwide concre-te production community havelong recognized the Twin-Shaftsystem as being the most effectiveand versatile of all available SIMEM Twin-Shaft series ofmixers offers high efficiency andreliability with minimum mainte-nance due to a refined designdeveloped within our companysince the first prototype in 1972 TWIN SHAFT.

2 THE MIXERWith over 20 years experience, SIMEM has developed worldwidereferences from a wide cross sec-tion of construction, mining andenvironmental Producers, Precast, andProducts Producers, Pipe, Blockand Backfill Producers have allfound SIMEM Twin-Shaft Mixersadaptable to specific requirementswhere consistency, speed, and effi-ciency are mixing tank in the SIMEM twin shaft mixers is comple-tely protected with special anti-wear liners. The mixingaction is performed by cast iron paddles, shaped for opti-mising the flow and for minimising the material and supporting arms are bolted to the main shaftsfor easy maintenance and twin shaft mixers are avai-lable in a wide range of models,from 1 up to 6 cubic meters com-pacted output capacity.

3 A LAB ver-sion has been also designed forpreparing laboratory SIMEM mixers are manufactu-red at our factories in Italy accor-ding to UNI-ISO 9001 qualityassurance SIMEM we call it TQMT otal Quality Mixing!TWIN SHAFTTQMTOTAL QUALITY MIXINGMIXERSAble to handle 0 to high slumpmix designs and, with optionalconfigurations up to 180 mmaggregate, the twin synchronizedshafts of the SIMEM Twin-ShaftMixers forces a shear in the mixwhich: Allows for every particle of sandand aggregate to be coated withcement; Gives the most homogeneous mix possible in as little as 20 seconds for wet batch and 60 seconds for pipe and block; And in many cases, allows for areduction of cement up to 15%without sacrificing strength!

4 Owners benefit from being able toprovide a better quality product, ina shorter period of time, whilesaving on cement costs. This adds up to increased produc-tion and Twin-Shaft Mixers are notonly designed for maximum pro-ductivity, but also for long termreliability of service. Driven byelectric motors, the twin stage pla-netary gear boxes, rated at 94%efficiency, are connected to themain shafts with articulated joints, which virtually eliminates the tran-smission of any possible force fromthe mixing shafts to the reduceroutput for the mixing shafts areinstalled on separate flanges andisolated from the concrete seals,protecting the bearings in case ofseal mescolazione - Mixing time756050453015100 to DIN 1045100%IDEALO mogeniet impastoMixing homogeneity50%The material flow pattern in the SIMEM Twin-Shaft S Mixer.

5 The twin-shaft rotate towards each other while the padd-les force the mix in a circular forces a shearin the mix that is unparalleled by any other type of mixing chart show 95% optimum mixing in less than30 seconds! Such an homogenity is recognised accordingto DIN 1045 Twin Shaft Mixer is definitively the most efficientmixing system compared to any other high MSO TWIN SHAFT MIXER driven by twin stageplanetary gear boxes which are connected to the mainshaft with articulated joints, this virtually eliminates thetransmission of any force from the mixing shafts to thereducer outputs.

6 Twin Quad Belt drives insure %Time SecondsMixing Time vs. Deviation for Unit volume Mortar TimeTilting drum mixerPan type mixerTwin shaft mixerStandard steel hood with four service openings for normalmaintenance and inspection during mixing cycle. Rubber seals are installed on the covers for dust emissioncontrol. Water manifold in hood comes complete with aclosing ring for dispersion of water across the mixing body,assisting in dust self-lubricating systemConcrete seals are installed on themixing shafts with special metallicand rubber packings, and connec-ted to the main automatic greasingunit.

7 All four shaft seals are continuouslygreased by the self-lubricatingsystem, which comes standard onall self-lubricating system providesa positive flow of grease to the backside of the seals ensuring grout doesnot pass into the seals. The grease pump on the self-lubri-cating system is mechanically dri-ven by the mixing grease tank has a capacity of 4Kg., and a limit-switch level indi-cator is also SHAFTSIMEM FEATURINGTHE TWIN SHAFT MIXERSMIXERSHigh pressure greasing pump is directly driven through themixing shaft with a mechanical diagram of the shaft seals: a labyrinth is composedthrough several gaskets and seals, integrated with the greaseinjection greasing system provides the internal seals with a con-tinuous protection against concrete inspection gates are equipped with safety limit switchesto avoid danger during discharge gate is equipped with 2 or 3 (option) induc-tive limit-switches, adjustable within a rail, for proportio-ning the outlet flow rate.

8 The gate is protected with inter-changeable special steel wear hydraulic power unit is provided with aluminium tank,complete with level and temperature display. The electricmotor and the hydraulic pump provide the driving systemfor the discharge Power Unitfor Discharge GateThe discharge gate is driven by a singlehydraulic cylinder connected to ahydraulic power unit, with an oil tankof 20 lt. capacity. The unit comes com-plete with a hand pump for emergencydischarging in case of power arms positioningThe special design of the mixingarms allows their installation indifferent configurations dependingon the size of the aggregates.

9 Thisfeature ensures optimum perfor-mance by allowing mixer arms tobe installed at 45 deg. for finegrains, 90 deg. for standard con-crete or 180 deg. where largesized aggregates are specified. The picture above is showing theso called Dam Version arms lay-out, with positioning at 180 .65 Aggregates loading SkipThe smaller range of MSO twinshaft mixers (models from 1250 to3000) is also available with anaggregates loading skip. The newSimem skip has been designed witha foldable discharge gate whichallows very fast flow of the mate-rials into the mixing tank, through adust suppressing inlet panel.

10 Theskip is driven through an indepen-dent electric motor and an epicy-cloidal gearbox, integrated on topTWIN SHAFTTHE INTELLIGENT MIXER:AUTO-DIAGNOSTIC ANDAUTOMATIC WASHINGMIXERSM ixer Mind Electronic Check-control systemEspecially designed for auto-diagno-stic operation and service planning,the Mixer Mind monitors motors,gearboxes, and the automatic lubrica-tion system for temperature, pressure,and service. It also indicates the ampdraw. SIMEM extend the warranty onthe mechanical components of themixer, including shaft seals, to 2 years,when the Mixer Mind is installed. Automatic High Pressure Washdown SystemTo reduce operating costs and time, SIMEM offers a high pressure wash-down system.