Bass jack & U-head jack

Manufactured from both solid bar and tube, in mild steel and hi-tensile steel, Base Jack & U-Head jack are widely used in various scaffolding systems for adjusting working height.

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Description

Manufactured from both solid bar and tube, in mild steel and hi-tensile steel, Base Jack & U-Head jack are widely used in various scaffolding systems for adjusting working height.

Can fit all types of scaffold systems, such as frames, ringlock, or cuplock systems.

Base plate is welded to the tubular screw stem. The base plate has a hole in each corner for securing to mudsill.

The screw jack with swivel base plate allows your scaffold set to be leveled on uneven surfaces. Casting iron nut is used on the screw stem, high-strength and galvanized for durability.

ACME threads are used on the screw stem.

There is a notch / cut in the threads of the screw stem to prevent the nut from coming off and to keep the screw jack from being over-extended.

Provides up to 450mm of adjustability.

Galvanized to prevent / minimize rusting.

Base Jack

Screw /Tube size (mm)	Base plate (mm)	Nut (kg)	Weight (kg)
Ø30(solid) x 400 (600)	120 x 120 x 5	0.25	2.75 (3.72)
Ø32(solid) x 400 (600)	120 x 120 x 5	0.30	3.10 (4.20)
Ø34(solid) x 400 (600)	120 x 120 x 5	0.40	3.50 (4.76)
Ø34(hollow) x 4 x 400 (600)	150 x 150 x 6	0.55	2.80 (3.39)
Ø38(hollow) x 4 x 400 (600)	150 x 150 x 6	0.50	2.90 (3.60)
Ø48(hollow) x 4 (5) x 600	150 x 150 x 8	1.00	5.00 (5.60)
Ø48(hollow) x 4 (5) x 820	150 x 150 x 8	1.00	6.00 (6.80)

U-Head Jack

Screw / Tube size (mm)	Base plate (mm)	Nut (kg)	Weight (kg)
Ø30(solid) x 400 (600)	150 x 120 x 50 x 5	0.25	3.36 (4.33)
Ø32(solid) x 400 (600)	150 x 120 x 50 x 5	0.30	3.70 (4.81)
Ø34(solid) x 400 (600)	150 x 120 x 50 x 5	0.40	4.10 (5.37)
Ø34(hollow) x 4 x 400 (600)	150 x 120 x 50 x 6	0.55	2.91 (3.74)
Ø38(hollow) x 4 x 400 (600)	150 x 150 x 50 x 6	0.50	3.61 (4.28)
Ø48(hollow) x 4 (5) x 600	180 x 150 x 50 x 8	1.00	6.24 (6.82)
Ø48(hollow) x 4 (5) x 820	180 x 150 x 50 x 8	1.00	7.20 (8.00)

1. surface treatment: painted, galvanized, HDG.
2. Available size: 400mm, 600mm, 700mm, 800mm, or customized size
3. Diameter: 30mm, 32mm, 34mm, 38mm, or customized size
4. Base plate: 120*120*4mm, 140*140*4mm
5: Customized size are available.

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