1) Most majority models in the product family of XBJ and SXBJ series Edge Milling Machine are equipped with one or two sets of milling heads, which account for over 95% of total volume;
2) Meanwhile, there are a branch of special type Large Plate Edge Milling Machine, which has four to five sets of milling head and its moving carriages, in one set of such heavy duty Sheet Metal Plate Welding Auxiliary Equipment, as shown in the attached photos;
1) Position: Four or Five Heads Configuration FXBJ and GFXBJ Series Large Scale Edge Milling Machine is “Giant” in the product family of Edge Milling Machine;
2) Powerful Capability: These large Welding Auxiliary Equipment are usually applied for making welding grooves on both sides of large size workpiece metal plates in high efficiency:
1) All the Four to Five Heads Sheet Metal Plate Edge Beveling Machine belong to heavy duty Large Plate Edge Milling Machine;
2) The “Smallest” model has the longest effective edge milling stroke of 18,000mm; And the “largest” model has 23,000mm maximum valid stroke;
1) Milling Head Quantity: Four to five sets of milling heads in one set of the Edge Milling Machine;
2) Milling Head Power: Higher power 11kw are often adopted, compared with 7.5kW in conventional models Edge Milling Machine;
3) Thickness of Workpiece: Sheet metal plates to be edge beveled in Four to Five Heads Large Plate Edge Milling Machine are usually have max. thickness of 200mm, compared with 40mm~ 80mm up limit in “Ordinary” Edge Milling Machine;
4) Workpiece Loading and Unloading: Considering the huge size and heavy weight (Sometimes around 70Ton per piece of steel plate) in the Four to Five Heads Heavy duty Plate Edge Milling Machine, hydraulic driving supplementary loading system is often equipped in such large size Welding Auxiliary Equipment. See below photo:
1. Where Used: Four or Five Heads Heavy duty Plate Edge Beveling Machine is usually applied in the field of big Civil Project, the most often examples are Steel Structure, Bridge Construction, especially Bay Bridge;
2. Why Need: To be specific, in such big projects, there are huge amounts of large size and heavy weight metal plates used as raw materials, which need to have large plate beveling on its both edges and four corners in high productivity, and hence calls for application of Four or Five sets of milling heads configuration in these Heavy duty Plate Edge Milling Machine;
The sheet metal plates to be processed with such Welding Auxiliary Equipment Large Plate Edge Milling Machine have size range of:
1) Length Range: Max. 18,000mm to 23,000mm;
2) Width Range: Max. 3,000mm to 4,000mm;
3) Thickness Range: 6~ 200mm;
4) Weight: Up to 70~75 Ton, which are really colossuses;
1) Making welding groove on large plate into four corners of workpiece sheet metal plate, in the position of upper and lower chamfers, in the form of Straight and Slant and Blunt Edges, or even round shape grooves. See below photos:
1) The four sets of main milling heads are arranged in symmetry at both sides of the Sheet Metal Plate Welding Auxiliary Equipment working table. Shown in below photo:
3) This may remind you of the similar structure in “Conventional” size Edge Milling Machine, such as SXBJ-12 Edge Milling Machine. The difference is, in SXBJ-12 Edge Beveling Machine, there is 1 set of milling head carriage assembled at both sides of the Sheet Metal Plate Welding Auxiliary Equipment respectively;
These special points include but not limited to:
1) Moving style instead of fixed type pressing beam, in the Large Plate Edge Beveling Machine;
2) Side beam added with small stroke for accommodating movement of pressing beam in the Large Plate Edge Milling Machine.
Below is generalization on technical specifications of FXBJ and GFXBJ series Four to Five Heads Large Plate Edge Beveling Machine of different sizes:
Model Technical Parameter | Four to Five Heads Configuration FXBJ and GFXBJ Series Large Plate Edge Milling Machine |
Max. Sheet Metal Plate Edge Milling Stroke | 18,000 ~ 23,000 mm |
Max. Sheet Metal Plate Width | 3,000 ~ 4,000 mm |
Sheet Metal Plate Thickness Range | 6 ~ 200 mm |
Quantity of Milling Head | 4 to 5 pieces (4 for lengthways edge milling, 1 optional for facing) |
Milling Angle Range of Top Milling Units | 0° to +90° |
Milling Angle Range of Down Milling Units | -45° to 0° |
Power and rpm of Lengthways Milling Head | 11 kW, 715 rpm, MU-9S |
Specification of Lateral Facing Head (Optional) | 7.5 kW, fixed 0°, TX-40, 6 grades by handwheel |
Spindle rpm of Edge Milling Head | 65 ~ 715 r/min., 9 grades by handwheel |
Moving Stroke of Longitudinal Pressing Beam | 1000 ~ 1200 mm |
Moving Stroke of Lateral Pressing Beam (Optional) | 400 mm |
Hydraulic Power Motor | 7.5 kW |
Taper Hole of Milling Spindle End | ISO 50(7:24) |
Lengthways Edge Milling Speed | (150~ 1000) or (300∼3000) mm/min. VFD Inverter |
Lateral Facing Speed (Optional) | 130 ~ 800 mm/min. Stepless |
Idle High Speed of Edge Milling Carriages | 4000 mm/min. |
High Speed of Idle for Facing (Optional) | 3500 mm/min. |
Diameter of Longitudinal Facer Plate | Ø200mm or Ø315 mm |
Diameter of Lateral Facer Plate (Optional) | Ø200 mm |
Quantity of Hydraulic Jacks | 33 ~ 39 pieces |
Edge Milling Machine Overall Dimension | 30m Length x 9m Width x 4.2m Height |