• Gravity Flow Rack

Gravity Flow Rack

High Density First In, First Out Management System

Gravity Flow Pallet Rack Systems are ideal for supplying pallet or carton loads of common SKUs in sorting and distribution operations. They also are a great option where high throughput is required or in a warehouse storage situation that calls for large volumes of each SKU.

Feeds pallets and cartons of product to processing, order picking and shipping.

Rid-u-Teir

Gravity flow pallet racks act like a conveyor within a rack structure. Pallets are deposited at the charge end and then flow down an incline to be picked at the opposite end. Systems can be 6 or more bays high and can run from a few to 15 positions deep. Using gravity to gently keep pallet loads staged for picking operations, flow racks are an economical first-in first-out storage rack solution.

Ridg-U-Rak conducts pallet flow tests using the client's actual pallet loads for a reliable, efficient and well-designed pallet rack solution. Our experienced engineering staff works directly with Ridg-U-Rak project managers to ensure that all specifications are met. Installation services are available and pallet rack projects are completed on time and on budget.

Columns Sizes:                   3x2-4, 3x3 and 4x3-inch

Beam Sizes:                    5-inch roll-formed

Standard Load:                  3,000 lbs

Features & Benefits:

  • Multiple heavy-duty roller options
  • Economical roll formed columns
  • Deeper systems
  • Pallet flow audits and testing
  • Available entry guides
  • First in – first out per lane

Applications:

  • Distribution centers
  • Pick modules and staging areas
  • Large value per SKU
  • High throughput

Upright Frames

capacity charts


Frame Capacities

Vertical
Beam
Spacing UF-S31I UF-S32I UF-S33I UF-R33I UF-M33I UF-Y33I UF-H33I UF-M43I UF-H43I
36" Static Load Capacities for component items are no longer published.
42"
48"
54"
60"
72"
84"
96"
108"

* Due to the system-based design approach of the current RMI Specification, the use of static load capacities are no longer appropriate. Load ratings can only be provided though a system analysis which accounts for configuration of the system, static loading, seismic parameters, stability requirements and the interaction characteristics of the various system components.

If your system was provided to you by Ridg-U-Rak, please contact your regional sales manager for the appropriate capacity rating.  If you purchased a Ridg-U-Rak system from a source other than Ridg-U-Rak, it is recommended that you work with an experienced rack design engineer to obtain the appropriate capacity rating.

Frame Capacities

Vertical
Beam
Spacing
36" Static Load Capacities for component items are no longer published.
42"
48"
54"
60"
72"
84"
96"
108"

* Due to the system-based design approach of the current RMI Specification, the use of static load capacities are no longer appropriate. Load ratings can only be provided though a system analysis which accounts for configuration of the system, static loading, seismic parameters, stability requirements and the interaction characteristics of the various system components.

If your system was provided to you by Ridg-U-Rak, please contact your regional sales manager for the appropriate capacity rating.  If you purchased a Ridg-U-Rak system from a source other than Ridg-U-Rak, it is recommended that you work with an experienced rack design engineer to obtain the appropriate capacity rating.

Frame capacity chart - Slotted Connection

Vertical Beam Spacing SSF-335
36" Static Load Capacities for component items are no longer published.
48"
60"
72"
84"
96"
108"

Frame capacity chart - Bolted Connection

Vertical Beam Spacing SBF-335 SBF-341 SBF-445
36" Static Load Capacities for component items are no longer published.
48"
60"
72"
84"
96"
108"

* Due to the system-based design approach of the current RMI Specification, the use of static load capacities are no longer appropriate. Load ratings can only be provided though a system analysis which accounts for configuration of the system, static loading, seismic parameters, stability requirements and the interaction characteristics of the various system components.

If your system was provided to you by Ridg-U-Rak, please contact your regional sales manager for the appropriate capacity rating.  If you purchased a Ridg-U-Rak system from a source other than Ridg-U-Rak, it is recommended that you work with an experienced rack design engineer to obtain the appropriate capacity rating.

Horizontal Beams

capacity charts



Beam Capacities

Tear Drop Pallet Rack
Beam
Profile
Beam Lengths
48" 60" 72" 84" 92" 96" 102" 108" 120" 144" 156"
250 S 5,700 4,530 3,130 2,300 1,910 1,750 1,550 1,380 1,120 770 660
300 S 7,500 5,980 4,820 3,530 2,940 2,690 2,380 2,120 1,720 1,190 1,010
355 S 9,760 7,770 6,460 5,330 4,440 4,070 3,600 3,210 2,590 1,790 1,520
410 L 10,810 8,620 7,150 6,110 5,570 5,200 4,600 4,100 3,310 2,290 1,940
410 S 12,000 9,780 8,120 6,930 6,320 5,830 5,160 4,600 3,710 2,570 2,180
465 S 12,000 11,970 9,940 8,490 7,740 7,410 6,960 6,320 5,110 3,530 3,000
500 S 12,000 12,000 11,170 9,540 8,700 8,330 7,830 7,380 6,140 4,250 3,610
550 S 18,000 18,000 18,000 11,150 10,160 9,720 9,140 8,620 7,740 5,420 4,610
600 S 18,000 18,000 18,000 12,850 11,710 11,210 10,540 9,940 8,920 6,790 5,770
650 S 18,000 18,000 18,000 14,660 13,360 12,790 12,020 11,340 10,180 8,360 7,110
650 R 18,000 18,000 18,000 18,000 15,160 14,520 13,640 12,870 11,550 9,370 7,970

• Capacities are based on uniformly distributed loads per pair of beams.
• Capacities listed are for non-seismic conditions. For seismic conditions consult with Ridg-U-Rak sales or engineering.

Beam Capacities

Slotted Pallet Rack
Beam
Profile
Beam Lengths
48" 60" 72" 84" 92" 96" 102" 108" 120" 144" 156"
250 S 5,700 4,530 3,130 2,300 1,910 1,750 1,550 1,380 1,120 770 660
300 S 7,500 5,980 4,820 3,530 2,940 2,690 2,380 2,120 1,720 1,190 1,010
355 S 9,760* 7,770 6,460 5,330 4,440 4,070 3,600 3,210 2,590 1,790 1,520
410 L 10,810* 8,620 7,150 6,110 5,570 5,200 4,600 4,100 3,310 2,290 1,940
410 S 12,270* 9,780* 8,120 6,930 6,320 5,830 5,160 4,600 3,710 2,570 2,180
465 S 15,020* 11,970* 9,940* 8,490 7,740 7,410 6,960 6,320 5,110 3,530 3,000
500 S 16,890* 13,460* 11,170* 9,540* 8,700 8,330 7,830 7,380 6,140 4,250 3,610
550 S 19,720* 15,710* 13,050* 11,150* 10,160* 9,720* 9,140* 8,620 7,740 5,420 4,610
600 S 22,500* 18,120* 15,050* 12,850* 11,710* 11,210* 10,540* 9,940* 8,920 6,790 5,770
650 S 22,500* 20,670* 17,160* 14,660* 13,360* 12,790* 12,020* 11,340* 10,180* 8,360 7,110
650 R 22,500* 22,500* 19,480* 16,640* 15,160* 14,520* 13,640* 12,870* 11,550* 9,370* 7,970

• Capacities marked with * indicate that the column connection capacity may be limited based on the hook option and/or frame model (see table below).
• Capacities listed are for non-seismic conditions. For seismic conditions consult with Ridg-U-Rak sales or engineering.
• Capacities are based on uniformly distributed loads per pair of beams.
• Capacities listed are for a 2-pallet wide condition.
• All beams over 114" in length should utilize at least one flanged, tek-screwed or lock-in cross bar located at mid length.

Beam Capacities - Slotted Connection

Tear Drop Pallet Rack
Beam Length
Un-braced Cap/pr Braced Cap/pr Un-braced Cap/pr Braced Cap/pr Un-braced Cap/pr Braced Cap/pr Un-braced Cap/pr Braced Cap/pr Un-braced Cap/pr Braced Cap/pr
48" 10,880 11,160 12,290 12,290 18,510 18,910
54" 9,350 9,920 10,640 10,930 15,860 16,810
72" 6,280 7,210 7,330 7,930 10,550 12,610 18,810
84" 4,970 5,300 5,830 5,830 8,060 10,810 14,840 18,960
92" 4,140 4,420 4,860 4,860 6,650 9,870 12,330 17,310
96" 3,800 4,060 4,460 4,460 6,080 9,320 11,280 16,590
102" 3,360 3,600 3,950 3,950 5,350 8,260 9,940 15,620 14,130
108" 2,990 3,210 3,530 3,530 4,750 7,370 8,830 14,750 12,520
120" 2,420 2,600 2,860 2,860 3,820 5,970 7,100 12,880 10,030
132" 2,000 2,150 2,360 2,360 3,140 4,930 5,840 10,640 8,220 17,640
144" 1,670 1,810 1,990 1,990 2,630 4,150 4,880 8,940 6,870 15,640
156" 1,430 1,540 1,690 1,690 2,230 3,530 4,150 7,620 5,820 13,330
180" 1,070 1,160 1,270 1,270 1,670 2,660 3,100 5,730 4,340 10,010

Note: Beams must be secured by beam locks against accidental upward forces. All capacities are per pair of beams based on uniformly distributed loads. Capacities are based on current RMI specifications.

Beam Capacities - Bolted Connection

Tear Drop Pallet Rack
Beam Length
Un-braced Cap/pr Braced Cap/pr Un-braced Cap/pr Braced Cap/pr Un-braced Cap/pr Braced Cap/pr Un-braced Cap/pr Braced Cap/pr Un-braced Cap/pr Braced Cap/pr
48" 10,880 11,160 12,290 12,290 18,510 18,910
54" 9,350 9,920 10,640 10,930 15,860 16,810
72" 6,280 7,210 7,330 7,930 10,550 12,610 18,810
84" 4,970 5,300 5,830 5,830 8,060 10,810 14,840 18,960
92" 4,140 4,420 4,860 4,860 6,650 9,870 12,330 17,310
96" 3,800 4,060 4,460 4,460 6,080 9,320 11,280 16,590
102" 3,360 3,600 3,950 3,950 5,350 8,260 9,940 15,620 14,130
108" 2,990 3,210 3,530 3,530 4,750 7,370 8,830 14,750 12,520
120" 2,420 2,600 2,860 2,860 3,820 5,970 7,100 12,880 10,030
132" 2,000 2,150 2,360 2,360 3,140 4,930 5,840 10,640 8,220 17,640
144" 1,670 1,810 1,990 1,990 2,630 4,150 4,880 8,940 6,870 15,640
156" 1,430 1,540 1,690 1,690 2,230 3,530 4,150 7,620 5,820 13,330
180" 1,070 1,160 1,270 1,270 1,670 2,660 3,100 5,730 4,340 10,010

Note: All capacities are per pair of beams based on uniformly distributed loads. Capacities are based on current RMI specifications.

Options (Frame & Beam)

Must be specified at the time of manufacturing

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Flow System - Virtual Showroom

Gravity Flow are high density "First In, First Out" rack systems. Rollers and brakes are commonly used to feed pallets down an incline to a staging or picking operation. Systems are multiple levels high, and multiple positions deep. Flow rack systems provide an effective storage option for applications involving a low number of SKUs and high inventory turns, and are useful when storing time sensitive products.

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