Look in a belt manufacturer's catalogue. Why would you want steel wire info. for belting without first looking for information about belting??

Good belt manufacturers are the core of conveying and you can do nothing without them. Read their books by all means. ■

Do you mean the wire mesh material used for the belts? It is like metal screening?

I know they use that stuff a whole lot in the conveyor belting systems, may be stuff like these guys sell:

Take a look here

http://www.bwire.com/index.html

This may be what you are talking about - possibilt stainless steel...? ■

Did you find out this in the end? ■

Wire rope is specified by the number of strands in the rope, the number of wires in each strand, and a description of the type of construction. For example, the notation 6x7 FC means that the rope has six strands, and there are 7 wires in each strand around a fiber core.

Dasy Smith,

CBC India.

http://www.cbc.in/ ■

Originally Posted by partha

HI,

I am trying to find out what are the different types of Wire Rope constructions used in the Conveyor Belt Systems. Can anyboudy guide me as to where I can find this on the net.

Dear Mr.Partha,

There are no standards used for steel cord belts. No relation between the belt ratings and the number of ropes used, their diameters and pitches. You need to get from belt manufacturers , when you order belt from them. The handings will be successive, if one is LH , the next will be RH.

Regards, ■

e

Originally Posted by sganesh

Dear Mr.Partha,

There are no standards used for steel cord belts. No relation between the belt ratings and the number of ropes used, their diameters and pitches. You need to get from belt manufacturers , when you order belt from them. The handings will be successive, if one is LH , the next will be RH.

Regards,

I say RUBISH. I offer the following comments to emphasize your misunderstanding.

There are standards among the manufacturers. You must first understand there is also Intellectual Property that certain suppliers practice. Some basic criteria are:

1. Wire rope drawing die limits: 50:1 and so on

2. Rubber penetration necessity: need to infuse rubber between wire strands to improve wire contact fatigue.

3. Contact fatigue limits with wire touching wire based on the construction method: a) 3+9+15 = 27 wires; b) 7x7 = 49 wires; c) 7x19=133 wires. Semi-Warrington and other constructions. Some wires have line contact, some have point contact. Patterns are developed to mimize point contact until it becomes impractical.

4. Belt strength for wire rope draw limits. For item 3, maximum wire size, give all wires are 1.0 mm diameter = 15 mm(+/-). This is about the limit of steel cord press pressures that is a function of cord placement and splice pattern. Largest wire rope and splice pattern with about 15 mm diameter = ST-10,000 N/mm and 5 step splice

Smaller wires can achieve a higher tensile strength based on the draw ratio. 27 wire can build steel cord wires to about 4 mm and stay with a single step splice pattern. 49 wire construction can build steel cord diameters to about 5 mm diameter and may have up to a two step splice pattern. 133 wire can go to +/- 15 mm diameter and up to a 5 step splice pattern.

There are non-conventional splice designs, such as varieties of finger splices using steel cord belts.

The belt constructions follow varieties of splices in 1-step, 2-steps, .... 5-steps and finger patterns. You must have reasonable knowledge of what advantages are achieved with each.

In conclusion, belt suppliers offer pulley diameters based on belt strength, belt strengths are based on number of cords, cord diameters, and cord breaking strength, which in turn sets the pulley diameters ) pulley diameters = 150X cord diameter (80-100% of belt tension rating); 100 x cord diameter (60-80% of belt tension rating); and so on. Thus, since each belt manufacturer does reasonable compare pulley diameter with belt strength, they must practice similare procedures. These above points are ball park values to make the point that a type of standard does exist if you are able to understand what factors are important in building a belt that is competitive. You will not find a 15 mm cord in a ST-1000 N/mm belt.

Without getting to detailed, most drawn wires will not exceed 1 mm.

You can become informed and read the available literature that has been published to give the lay designers and engineers insight. Please do not stand and pontificate on something you have not researched, read or heard about. ■

Dear Mr.Nordell,

By knowing only the belt rating ( embossed on the belt once in 10 meters by genuine belt manufacturers ) and belt width ( which can be obviously measured ) , would it be possible to purchase vulcanizing kit for that belt from any vulcanizing kit supplier ?

https://forum.bulk-online.com/showth...elts&highlight=

My reply was based on the answers I received from the above post.

The question is also related to numbers , pitches of the steel cord ropes used in the base belt and cross sectional details of the base belt.

If there is some thing else, sorry for my misunderstanding and Mr.Partha is requested to clarify.

Please note : There is also no relation between the rip protection cords which are given in steel cord belts ( if customer insists ) and the belt ratings in which those rip protection cords are used. I had earlier raised this point. But did not get any answer.

To make more clear :

For ST-1400, what are the rip protection cords are to be used ? What would be the pitch ?

For ST-1000, what are the rip protection cords are to be used ? What would be the pitch ?

Is there any standardization for RIP protection ? ( say to use nylon cords, steel cords , steel mesh or fabric plies ? ) But I had no answer so far.

Regards to all, ■