KR-UZL Box Beam Assembly Machine (Wing Plate to 1000mm, 12m Long) | Kasry, Dezhou, China

The KR-UZL is a box beam assembly machine for building box girders used in construction and infrastructure. It aligns the components of a box beam (cover plates and internal reinforcing plates) so they can be joined into strong, accurate sections. It handles wing plates 200 to 1,000mm wide and 6 to 40mm thick, webs 300 to 1,000mm high and 6 to 40mm thick, and workpieces from 5 to 12m long.

Box beams are difficult to assemble because the four cover plates must fit tightly against the internal reinforcing plates, otherwise molten slag can leak out during electroslag welding. The internal reinforcing plates are also not continuous along the beam. Kasry developed this movable gantry design to handle both requirements.

The machine uses electromagnets to hold the plates and correct any inward curve (concavity) in the plate, and sensors to check the box beam dimensions. It has a mobile operating desk and a full sheet metal enclosure, which Kasry says makes it simple and safer to use.

Why Choose a Dedicated Box Beam Assembly Machine?

Box beam fit-up is slow and depends on skilled fitters, and small gaps at the diaphragms cause weld defects. A machine that holds the plates and diaphragms accurately reduces both problems.

• Accurate fit-up. Electromagnets and sensors keep plates flat and diaphragms tight against the cover plates.
• Higher productivity. Kasry claims more than three times the efficiency of traditional assembly.
• Handles heavy plate. Plates up to 40mm thick and beams up to 12m long.
• Purpose built. The movable gantry design is made for the discontinuous internal diaphragms of box beams.
• Safer and simpler. Full enclosure and a mobile operating desk.

Machine Specifications

• Model: KR-UZL
• Wing plate width: 200mm to 1,000mm
• Wing plate thickness: 6mm to 40mm
• Web height: 300mm to 1,000mm
• Web thickness: 6mm to 40mm
• Workpiece length: 5,000mm to 12,000mm
• Total power: 22kW
• Weight: 13 tonnes
• Equipment size: 28m × 3.5m × 3m

Condition Available: New

Key Features

• Movable gantry design for box beam assembly
• Electromagnets to clamp plates and correct concave plate distortion
• Sensors for checking box beam dimensions
• Handles plates from 6 to 40mm and beams from 5 to 12m
• Full sheet metal enclosure
• Mobile operating desk
• Claimed more than 3× the efficiency of traditional assembly

Applications

• Assembling box beams and box girders for buildings
• Bridge and infrastructure steel fabrication
• Preparing box beams for electroslag welding

Who This Machine Is For

• Steel structure fabricators producing box beams and box columns
• Bridge and heavy construction steelwork manufacturers
• Plants building or expanding a box beam production line

Frequently Asked Questions

What does this machine do?
It assembles box beams by aligning the cover plates and internal reinforcing plates so they can be welded.

What sizes can it handle?
Wing plates 200 to 1,000mm wide and 6 to 40mm thick, webs 300 to 1,000mm high and 6 to 40mm thick, and workpieces 5 to 12m long.

Why is a special machine needed for box beams?
The cover plates must fit tightly to the internal reinforcing plates to stop molten slag escaping during electroslag welding, and the internal plates are discontinuous along the beam.

How much space and power does it need?
It occupies 28m × 3.5m × 3m, weighs 13 tonnes, and has 22kW of total power.

How much faster is it than manual assembly?
Kasry says more than three times the efficiency of traditional assembly, though it doesn't state the baseline.

What else does Kasry offer for box beam production?
A face milling machine is listed as a related product for preparing the beam ends.

Is financing or staged payment available?
Yes. A deposit secures your order and begins production, with the remaining balance due only once your machine has been built, inspected, and is ready to ship.

Should I buy new or used?
This machine is available new, built to order.