Conveyor Chains wheels & sprockets

POWERFUL CHAINS IN A CHANGING WORLD

CONTENTSsedis GENERAL INFORMATION Components of conveyor chains - P 6 Technical information about conveyor chains- P 7 Symbols, units main formulas - P 18 sEdIS technical solutions- P 19 STANDARD CHAINS M 20 - general dimensions, attachments and wheels P 26 M 56 - general dimensions, attachments and wheels P 28 M80 - general dimensions, attachments and wheels P 30 M112 - general dimensions, attachments and wheels P 32 M160 - general dimensions, attachments and wheels P 34 M224 - general dimensions, attachments and wheels ...

CONTENTS HOLLOW PIN CONVEYOR CHAINS MC 27 (ZM28) - general dimensions, attachments and wheels _______________________________ P 76 MC 55 (ZM54) - general dimensions, attachments and wheels _______________________________ P 78 MC 110 - general dimensions, attachments and wheels _______________________________ P 80 - general dimensions, attachments and wheels _______________________________ P 82 - general dimensions, attachments and wheels _______________________________ P 84 BLOCK CHAINS BM Type ___________________________________________________________________________ B Type ___________________________________________________________________________...

CONTENTS URBAN Chains for escalators and moving walkways _________________________________________ Chains for automotive industry ______________________________________________________ Chains for water treatment ___________________________________________________________ Chains for waste treatment ___________________________________________________________ Chains for civil engineering __________________________________________________________ Chains for the brick and tile industry ________________________________________________ HEAVY INDUSTRY Chains for the cement industry ________________________________________________________...

GENERAL INFORMATION

Technical INFORMATION

GENERAL INFORMATION COMPONENTS OF A CONVEYOR CHAIN Plain Roller Outer Link Pin Bush Inner Link Inner Plate Outer Plate OTHER ATTACHMENTS Type G (bent or straight side plates)

sedis TECHNICAL INFORMATION Like all chains, conveyor chains consist of pins and bushes joined together by plates. Their main distinguishing feature is their ability to be equipped with various means of accessories suitable for the type of conveyor used and the nature of the load to be moved. Their pitch, which is generally considerable, is not unique but can be chosen from a wide range. 1.1- ISO STANDARD CONVEYOR CHAINS STANDARD CHAINS The SEDIS chains conform to ISO 1977 standard. This range is based on the minimum tensile strength, the pitch, the type of pin and roller and the features of...

GENERAL INFORMATION TECHNICAL INFORMATION CONNECTING LINKS There are three types of connecting links: ► with self-locking nuts: the two pins are riveted to one plate at one end, the other end receiving a connecting plate held by selflocking nuts ► with cottered pins: the outer plate is held on one side by cotters to facilitate dismantling. For some applications, we can deliver chains with plates cottered every pitch on one side. ► with riveted pins: the connecting plate is held by pins riveted both sides after assembly of the chain. DESIGNATION ISO solid pin conveyor chains are designated by...

TECHNICAL INFORMATION 1.5- GALLE CHAINS Galle chains are composed of waisted or straight side plates and of flanged pins.The flanges on the pins maintain the spacing between the plates and allow the chain to mesh on the sprocket. Chains are designated as single, double or triple link chains depending on the requested tensile strength. Galle chains can transmit forces varying from a few hundred Newtons to more than 1000 kilo Newton; on the other hand the speed should not exceed 20 m/min. Galle chains are used for low speed transmission (draw benches) or to handle oscillating movements (freight...

GENERAL INFORMATION TECHNICAL INFORMATION 2.2- TYPE OF LOAD The conveyed loads may be very different, what leads to a wide variety of conveyor installations. ► The load is continuous over the whole length of the conveyor, this load being: • bulk (coal, grain, etc...) • separate objects touching each other (boxes, cases...) ► The load is not continuous. These are objects spread more or less regularly along the conveyor. Regardless of the nature of the load, it can be supported during transport in various ways: ► The load is not supported by the chain which in this case only has a drive function....

sedis TECHNICAL INFORMATION 2.5- OTHER WORKING CONDITIONS Various working conditions can be added to the basic conditions described above. It is important to take them into account when describing the conditions of use of the chain (next paragraph). These are mainly mechanical parameters, but may also be the nature of the working environment. ► Drag : an extra force is applied to the chain when the transported load is exercised by excavation as it is often the case in bucket elevators. ► Shock loading : independently of jerks which can happen on starting up, the arrival of loads on the moving...

GENERAL INFORMATION TECHNICAL INFORMATION 3.2- CALCULATION OF FORCES GENERAL FORMULAS All the symbols and units in the following formulas are listed in the chapter " symbols, units and main formulas". Ft ► Maximum traction force in Newtons (at the entry to the drive chain wheel) : Pt ► Maximum normal force in Newton (pressure on the guiding surface) : With: • Pt and Pm : total loads (in N) supported by the tight strand and the slack strand respectively (see chapter 3.6) • f and f' : the coefficient of friction encountered on the tight strand and on the slack strand (see chapter 3.7) • a : the...

TECHNICAL INFORMATION 3.4- SELECTION FOR WEAR RESISTANCE OF THE ARTICULATIONS For the service life usually required in industrial applications (50,000 hours) and/or when the conditions are aggressive (e.g. abrasive dust), the risk of failure of a chain is in the wearing of rubbing parts, especially pins and bushes. To prevent wear in the articulations (with abnormal elongation of the chain disrupting its operation) and to avoid seizure causing an increase in the required power, it is necessary to limit the contact pressure in the articulations. ► Pressure in the articulations : Pa = Ft ► Articulation...