• Push Back Pallet Rack

Push Back Pallet Rack

High Density Cart-On-Rail Pallet Rack System

Ridg-U-Rak's Push Back Pallet Rack (Push-Bak) uses a dynamic cart-on-rail system in which deeper pallet loads automatically advance to the aisle when the front pallet load is retrieved

The ultimate in high density storage utilization and selectivity. Features jam-free cart-on-rail design.

Rid-u-Teir

Push back pallet rack systems offer similar storage density as drive-in pallet rack while improving selectivity and accessibility to a range of SKUs. Product stored in lanes rests on a system of carts-on-rails available in 2 to 6 pallets deep. From one aisle, pallets are stored by "pushing back" previously placed pallets with a new pallet on the next cart position. When the front pallet is retrieved, gravity causes the next pallet to move forward into a ready position. This "last-in, first-out" system (per lane) reduces picking time when a large number of picking faces are required.

Rid-u-Teir Ridg-U-Rak's patented design features large coated wheels with sealed bearings. The linked cart design provides smooth operation in the pallet rack system.

Push back pallet rack systems provide a very desirable combination of high density storage and pallet accessibility. Ridg-U-Rak's Push-Bak™ storage density equals that of drive-in pallet rack systems, yet every lane can be accessed at all times. Any lane can be filled from the aisle without affecting any other adjacent lanes above or below.

Ridg-U-Rak manufactures complete push back pallet rack systems for the peace of mind that comes with single source responsibility. Ridg-U-Rak quality is in the entire system.

Standard Load: up to 3,000 lbs.

Features:

  • Higher utilization of available pallet positions than most storage systems
  • Single aisle for more storage rack area
  • Patented design
  • Easy rolling carts with large coated wheels
  • Low maintenance sealed bearings
  • Linked carts
  • Cart anti-lift-out devices
  • Low cart stack height
  • Lift trucks never enter the rack

Applications & Options:

  • Universal product storage
  • Aisle access to each pick face
  • Large number of SKUs and pick faces

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

Accessories

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Push Back Rack - Virtual Showroom

Push back pallet rack systems store pallets of the same product on a system of carts-on-rails in lanes two to five positions deep. Pallets are loaded by "pushing back" previously placed pallets, setting the new pallet on the next cart position. Similarly, as a pallet is retrieved, the next pallet rolls forward to the aisle. Push-Back high density storage offers increased selectivity, as every lane can be accessed from the aisle without affecting the lanes above or below.

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