4B Polysur® Steel Web Core Elevator Belting

         
 

The 4B Polysur® steel web core belt is a rubber elevator belt with a special steel cord core. The cords provide low elongation with high elasticity in the length, and cross rigidity in the width. The built-in elasticity allows running over slightly crowned pulleys which greatly improves belt tracking, and helps to avoid belt wandering which is often the reason for elevators shutting down. The rigid weft cords act as a barrier to ripping and tearing which increases the holding ability for the bucket bolts. This produces a good cross rigid belt resulting in excellent straight tracking characteristics.

In contrast, most conventional steel cable belts lack elasticity and consequently have to run over truly flat, cylindrical pulleys which increases the risk of belts off-tracking.

The 4B Polysur® steel web core belt is designed for heavy duty/industrial bucket elevator applications with long centre distances that require stable running and reliable belts with high safety factors. All

4B Polysur® steel web core belts are manufactured in accordance with DIN 22102 and ISO norms.

 

Polysur Steel Web Core Elevator Belting

 

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Elevator Belt Installation Guide

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Features:

   
 

• Rubber Belt with Steel Web Core for Heavy Duty Applications

   
 

• Strength up to 2,280 PIW (4,000 N/mm)

   
 

• Minimum Stretch - Elongation at Maximum Working Load 0.35%

   
 

• Temperature Resistant up to 302°F Continuous (356°F - Short Peaks)

   
 

• Can Run Over Slightly Crowned Pulleys

     
  • Anti-Static      
         
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Strength
PIW  (N/mm)
Covers
in  (mm)
Belt Thickness
in  (mm)
Minimum Pulley Ø
in  (mm)
Approximate Weight
lbs. PIW  (kg/m²)
360  (630) 1/8 x 1/8  (3+3) 0.433  (11) 16  (400) 0.260  (15,21)
460  (800) 1/8 x 1/8  (3+3) 0.472  (12) 20  (500) 0.294  (17,20)
570  (1,000) 1/8 x 1/8  (3+3) 0.512  (13) 20  (500) 0.306  (17,93)
700  (1,250) 5/32 x 5/32  (4+4) 0.551  (14) 24  (630) 0.382  (22,37)
800  (1,400) 5/32 x 5/32  (4+4) 0.551  (14) 24  (630) 0.395  (23,12)
900  (1,600) 5/32 x 5/32  (4+4) 0.551  (14) 24  (630) 0.409  (23,97)
1,000  (1,800) 5/32 x 5/32  (4+4) 0.551  (14) 24  (630) 0.421  (24,67)
1,140  (2,000) 5/32 x 5/32  (4+4) 0.551  (14) 30  (800) 0.430  (25,17)
1,430  (2,500) 3/16 x 3/16  (5+5) 0.669  (17) 42  (1,000) 0.473  (27,71)
1,570 (2,750) 3/16 x 3/16  (5+5) 0.669  (17) 42  (1,000) 0.490 (28,67)
1,710 (3,000) 3/16 x 3/16  (5+5) 0.669  (17) 42  (1,000) 0.509 (29,83)
1,830 (3,200) 3/16 x 3/16  (5+5) 0.669  (17) 42  (1,000) 0.525 (30,77)
2,000 (3,500) 3/16 x 3/16  (5+5) 0.669  (17) 42  (1,000) 0.554 (32,45)
2,280 (4,000) 3/16 x 3/16  (5+5) 0.669  (17) 42  (1,000) 0.586 (34,32)
 
         
   4B Polysur® Steel Web Core Belts are Available in Six Types -  
     
 
T60  Very good abrasion resistant quality, based on SBR rubber for use with ambient temperatures
 of 140°F (60°C)
T100  Improved version of the T60 for product temperatures of 194°F - 212°F (90°C - 100°C)
T130  Based on EPDM rubber, suitable for product temperatures of up to 266°F (130°C) and
 short peaks up to 302°F (150°C)
T150  Based on EPM rubber, suitable for product temperatures up to 302°F (150°C)
 and short peaks up to 356°F (180°C)
G  Suitable for handling oily and fatty product at temperatures up to 176°F (80°C)
ALE  White rubber food quality suitable for non-fat food products at ambient temperature
 
         
 
Industrial Elevator Buckets
 

Industrial Elevator Buckets

4B Polysur® steel web core belting is compatible with all of our industrial elevator buckets and cups.  With over 400 different sizes and styles, 4B can supply the right belt and bucket for your application.

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Euro DIN 15237 Elevator Bolts

Euro DIN 15237 elevator bolts have a concave head and two lugs on the underside to help prevent rotation when tightening.  Euro DIN 15237 bolts are available with POSIDRIV® ends, which are recommended for use with 4B Polysur® steel web core belts.

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Braime Clamp Belt Splice
 

Braime Clamp Belt Splices

The Braime Clamp (BC) series of heavy-duty belt splices securely fastens belting on larger bucket elevators.  The BC2, BC3 and BC4 versions incorporate an additional three piece machined steel vise grip section designed to ride above the aluminum base clamp and secure the steel cords within a steel web core belt.

More Info

 
     
     
     
     
     
     
         
  Do I have to use the Braime Clamp (BC) splice with Polysur® steel web core belting?  
  Yes, the Braime Clamp (BC2, BC3 and BC4) was specifically designed for steel web core belting.  
     
  Can the BC1 version of the Braime Clamp be used with Polysur® steel web core belting?  
  No, the BC1 is for textile belts only.  The BC2, BC3 and BC4 versions incorporate an additional three piece vise grip  
  section designed to secure the steel cords.  
     
  Is there a specific type of elevator bolt to use with Polysur® steel web core belting?  
  4B recommends Euro DIN 15237 elevator bolts with hex keyed ends.   The hex keyed ends make installation much  
  easier when trying to get the bolt through the steel web core.  Using a hex or allen wrench allows you to "screw" the  
  bolt through the steel webbing.  
     
 
Polysur Steel Web Core Belting
Steel Web Belt on Bucket Elevator
Braime Clamp with Steel Web Belt
   
   
   
   
   
   
   
     
           
           
           
   
   
   
   
   
   
   
   
   
   
   
   
   
   
       
  At 4B we have designed hundreds of bucket elevators for many different industries from animal feed, grain storage and processing, flour milling, malting and brewing through to biomass, cement, coal, frac sand and other heavy industries. We  can provide preliminary design information for upgrading your existing elevator or help with designing a new elevator.

Take advantage of 4B’s FREE worldwide technical support from a team of engineers specializing in the design of bucket elevators.

Using your key technical data, our engineers will provide the preliminary design and component details so that your elevator performs as expected and achieves required capacities and discharge characteristics.

To get a recommendation from our engineers, CLICK HERE to fill out our online form.