This B&B SUMNER Fold-A-Jack combines portability with power, offering a collapsible leg frame for easy transport. It adjusts between 28 – 49″ / 711 – 1,245 mm, supports pipes up to 12″ / 300 mm, and carries a load of 2,500 lbs / 1,135 kg. Its rugged steel build features oversized tubing, a 10″ V-head, and a 1.5″ ACME rod for fine adjustment. Weighing 22.30 lbs / 10.10 kg, it’s ideal for fabrication shops where compact storage is key. A locking washer system improves safety and setup speed. Available with multiple head styles for various applications.
HI HEAVY DUTY FOLD-A-JACK
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| New Part No. | Old SUMNER Part No. | Old BB Part No. | Description | Load Capacity |
| 3900 | 781300 | 3900 | Hi Heavy Duty Fold-A-Jack with V-head | 2,500 lbs / 1,135 kg |
| 3900GVH | n/a | n/a | Hi Heavy Duty Fold-A-Jack with gusset V-head | 2,500 lbs / 1,135 kg |
| 3900SWH | 781301 | 3905 | Hi Heavy Duty Fold-A-Jack with steel wheel head | 2,000 lbs / 910 kg |
| 3900PWH | 781306 | 3910 | Hi Heavy Duty Fold-A-Jack with phenolic wheel head | 1,000 lbs / 450 kg |
| 3900SSWH | 781303 | 3935 | Hi Heavy Duty Fold-A-Jack with stainless steel wheel head | 2,000 lbs / 910 kg |
| 3900SSH | 781304 | n/a | Hi Heavy Duty Fold-A-Jack with stainless steel V-head sleeves (pair) | 2,500 lbs / 1,135 kg |
| 3900BTH | 781305 | n/a | Hi Heavy Duty Fold-A-Jack with stainless steel ball transfer head (pair) | 1,000 lbs / 450 kg |
| 3900PCV | n/a | 90033 | Hi Heavy Duty Fold-A-Jack with pipe chain vice head | 550 lbs / 250 kg |
| 3900CRH | 781302 | 3915 | Hi Heavy Duty Fold-A-Jack with conveyor roller head | 550 lbs / 250 kg |
| 3900CVH | n/a | 3920 | Hi Heavy Duty Fold-A-Jack with conveyor V-head | 550 lbs / 250 kg |
- 2,500 lbs / 1,135 kg load capacity
- Third-party tested with at least a 2:1 safety ratio.
- Oversized 10″ V-head for increased safety.
- Oversized square tube legs and braces for increased durability.
- 11/2″ (1.5″) ACME rod is largest in the industry.
- Quick lock washer height adjustment for easy use.
- More head options than any other manufacturer.
- Increased width stance for better stability.
- Square tube bracing offers additional strength and rigidity.
- Safety washer can be locked on to base for increased operator safety.
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