High Performance Grilles
Take a moment to compare the differences and find out why The LAWRENCE Model PG High Performance Grille is an ADVANTAGE!
The Model PG is a truly high performance grille – Designed to operate for 500,000 cycles… Plus an average operating speed of 24 inches per second to open, 12 inches per second to close
|Product Features||Traditional Rolling Grille1||LAWRENCE Model PG High Performance Grille||LAWRENCE Model PG ADVANTAGE!|
|Cycle Life||50,000 cycles||500,000 cycles||Designed to last 10 times longer|
|Warranty||2 years / 50,000 cycles||2 years / 500,000 cycles2||Superior performance… superior warranty|
|Barrel Design||Torsion springs||Spring-less design||No springs to wear out or break – eliminates cost of barrel repairs and resulting down time|
|Grille Curtain – Links||3-hole links
(single 1/8″ thick links alternating with double 1/16″ thick links)
|2-hole heavy links (all links 3/16″ thick)||Thicker links better withstand repeated coiling of the curtain on itself; Shorter links are more resistant to bending|
|Grille Curtain – Rods||Spaced on 2″ centers||Spaced on 1 1/2″ centers||Rods are closer together for greater strength and increased security|
|Grille Curtain – Rod Sleeves||Aluminum sleeves on every 6th rod, and on every other rod between end links||Aluminum sleeves on every 4th rod; Stainless steel sleeves on every rod between end links||Sleeves are closer together for more strength; Stainless steel sleeves provide superior wear surface where curtain travels in the guides|
|Grille Curtain – Rod Ends||Cotter pins on ends of sleeved rods; Retaining rings on ends of other rods||Cotter pins on ends of all rods||Ends of all rods are mechanically secured to better maintain curtain alignment|
|Guides||1/8″ thick extruded aluminum channels with HDPE wear strip inserts||1/4″ thick steel shapes with replaceable UHMW wear strips; Separately removable outer guide plate & inner guide angle||Steel guides are more durable than aluminum; UHMW wear strips won’t wear out; Unique guide design provides easy access for periodic inspection and maintenance|
|Guide Mounting||Steel wall angles||Steel wall tubes||Wall tubes provide more rigid mounting for very high frequency / high speed use|
|Motor Operator||1/2 HP in-line gear drive motor operator||2 HP (min.) high efficiency in-line gear drive motor operator; Variable speed controller with soft start/stop feature; Integral speed governor||Complete assembly is designed specifically for very high frequency / high speed use; Variable speed allows grille to open fast but close at slower, safer speed; Soft start/stop extends life by slowing grille before full open and close to reduce shock loads; Governor prevents curtain free-fall in unlikely event of operator component failure|
|Operating Speed||Approx. 6″ to 8″ per second to open and close||Approx. 24″ per second to open, 12″ per second to close||Opens 3 to 4 times faster and closes 1 1/2 to 2 times faster than traditional rolling grilles – plus enhanced safety features are included|
|Cost3||$$||$$$$$||Superb value – 10 times the life for about 2 1/2 times the price of a traditional rolling grille!|
1 Features listed are for a Lawrence HG Grille and may exceed what can be expected on many other types of traditional rolling grilles.
2 Additional warranty conditions apply.
3 Cost comparison based on estimated initial cost for a 20′ wide x 8′ high grille, clear anodized finish, galvanized steel hood, monitored sensing edge, reclose timer, cycle counter, sales tax, and installation (not including power or control wiring).
Lawrence Roll-Up Doors, Inc. reserves the right to change specifications without notice. Refer to Standard Specifications sheets (available upon request) for complete product information. © 2017 Lawrence Roll-Up Doors, Inc.