THANKS FOR the reply.........much appreciated.

George ■

KASEY: Thanks for participating, now..........your thread brings up another topic of great interest in prolonging life of wirecloth, punch plate, rubber and urethane actually.

SKID RAILS: This is very old technology used for decades.

PUNCH PLATE: Typically used for PRIMARY or heavy abusive BANG CRASH applications ........say, scalping primary feed material being ROM run of mine scalping overs usually into a crusher.

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MOST people put on the perforated punch plate, say 1/2" thick staggered or straight lines and GIVE ER........Here is what happens, we are putting on this heavy duty media to take the abuse but, we are not thinking it right through carefully

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We find in reality, the plate gets GOUGED, RIPPED and PLUGGED with elongated carrot shaped ROCK. The plate becomes completely PLUGGED and plate becomes battered into submission, and the CROSS MEMBERS underneath that plate typically are damaged severly. Due to the long small ends of the carrots being allowed to stick, gouge into and be rubbed and bashed from rocks IMPACTING onto the rocks plugging the HOLE OPENING.

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SOLUTION: Change hole pattern to STRAIGHT LINE then install 2" high x 1" or 2" x 2" thick STEEL RISERS to the margins between the holes down the length of the PUNCH PLATE.

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What are we accomplishing? Let's say we are scalping at 6" opening for sake of argument. We now take the BIG BIG feed material above 6" size and SKID it down the rails into MR. CRUSHER .....This gets it on and off quicker, it keeps it off the punch plate opening (no abuse or damage), reduces plugging substantially, increases bearing life due to not carrying extra STATIC weight PLUGGED in the vibrating body, INCREASES PERF PLATE LIFE, severly reduces damage to the support deck below it, which reduces mtce downtime and mtce dollars....all pretty good things.

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WIRECLOTH: use a FLAT TOP WEAVE, which puts the KNUCKLES at the intersections of the weave on the underside, elimanating busted wires.

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RUBBER: use rubber skid rail risers same deal as punch plate order at time of new order, let factory supply

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URETHANE: use urethane skid rail risers, same as rubber

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SKID RAILS are used because we need to protect the media from ABUSE, SHORTENED LIFE, due to big materials jamming in them.

Kasey, thanks for getting me off onto another tangent....

Keep ROCKin' George Baker - Mr. Vibration....... ■

We want to make sure if we add the extra weight of the skid rails to double check the circle size or stroke....we need to maintain the full eccentricity that was there before the addition of extra weight to the vibrating device.

NORMALLY, there is no need for any adjustment but, If we lose a titch of energy or stroke.....we should add a small plate weight to each wheel to get back to the original circle size.....the speed or rpm will remain the SAME.

Keep Stroking.........George ■

I prefer RUBBER for impact areas........urethane generally fits in SLIDE WEAR areas or wet applications.

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DEMOS: I always told my customers, if the supplier is unwilling to guarantee the product works........or eat the demo section...do not buy it from him. GET STUFF IN WRITING.

When i sold urethane to replace wirecloth........yep.......this is tough selling......from the known to the UNKNOWN. I sold vibrating equipment also.......so my accounts would normally trust my suggestion that adding say...urethane vs wirecloth would not harm the vibrating screen. I would also clear with our engineers in house first.

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URETHANE or RUBBER demo trail test: I would basically suggest this...take off feed section of wirecloth...replace with one only feed section of URETHANE OR RUBBER....side tensioned like wirecloth. If it does not last as promised by your sales guy......take it out........get money back. COST IS ONE SECTION, credited under warranty guarantee, no modification to screen body....cutting, torching etc and put your wirecloth right back in the same spot.

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If the urethane or rubber works.......to your satisfaction....then look at more sections side tensioned down the rest of the deck OR if very comfy with what you saw........then, GO TO A DECK MODIFICATION to say accept 1'x2' square panels with a special snap receiving grid for example.

GO SLOW....WALK before you run....Make sure the supplier works with you VS sticks you with the cost of the test.

Keep Smiling.... George...... (Coke bottles - i like that !) ■