Adjustable screw jack is one of the scaffold accessories, which gives stability to the structure with desired adjustments at the base.
Base Jacks are used at the base of the scaffolding system, to adjust the rough ground into the same level, and stablized the system.
ADTO Jack Base Advatanges:
（1） Length Adjustable
（2） Solid and Hollow types
（3） Safety Assured.
| Name | Steel Jack |
| Type | Solid/Hollow; U head/Fork Head/Base Head |
| Pipe Diameter | 30mm, 32mm, 38mm&48mm |
| Adjustment Length | From 225mm to 550mm |
| Main Material | Q235 for welded pipes and 20# for seamless steel pipes |
| Surface Treatment | High Protected Painted, Powder Coating, Electric Gavenized, Pre- Gavenized. |
| Certificate | SGS, EN12810. |
| Service | OEM Service available and samples are available. |
| MOQ | 500pcs |
| Payment | T/T, LC |
| Delivery Time | About 20-30 days after confirmation |
| Packing | In bulk or steel pallet or as your request |
| Production Capability | 100 tons per day |
Regular Sizes of Jack bases
| Name | Type | Size | |
| Screw rod(mm) | Base Plate(mm) | ||
| Adjustable Base Jack | Solid | M30 x 400 | 120 x 120 x 5 |
| M30 x 600 | 120 x 120 x 5 | ||
| M32 x 400 | 120 x 120 x 5 | ||
| M32 x 600 | 120 x 120 x 5 | ||
| M34 x 400 | 120 x 120 x 5 | ||
| M34 x 600 | 120 x 120 x 5 | ||
| M35 x 400 | 150 x 150 x 5 | ||
| M35 x 500 | 150 x 150 x 5 | ||
| M35 x 600 | 150 x 150 x 5 | ||
| M38 x 500 | 150 x 150 x 5 | ||
| M38 x 600 | 150 x 150 x 5 | ||
| Adjustable Base Jack | Hollow | M35 x 4 x 600 | 150 x 150 x 5 |
| M38 x 4 x 600 | 150 x 150 x 5 | ||
| M48 x 4 x 600 | 160 x 160 x 6 | ||
| M35 x 5 x 400 | 150 x 150 x 5 | ||
| M38 x 5 x 600 | 150 x 150 x 5 | ||
| M48 x 5 x 600 | 150 x 150 x 5 | ||
| M38 x 5 x 500 | 150 x 150 x 5 | ||
| M38 x 5 x 600 | 150 x 150 x 6 | ||
| M48 x 5 x 600 | 150 x 150 x 6 | ||
| M48 x 5 x 600 | 150 x 150 x 6 | ||
| M48 x 5 x 600 | 150 x 150 x 6 | ||
| Adjustable U-head Jack | Solid | M30 x 400 | 150 x 120 x 50 x 5 |
| M30 x 600 | 150 x 120 x 50 x 5 | ||
| M32 x 400 | 150 x 120 x 50 x 5 | ||
| M32 x 600 | 150 x 120 x 50 x 5 | ||
| M34 x 400 | 150 x 120 x 50 x 5 | ||
| M34 x 600 | 150 x 120 x 50 x 5 | ||
| M38 x 500 | 150 x 120 x 50 x 5 | ||
| M38 x 750 | 150 x 120 x 50 x 5 | ||
