A. Technology Process 
 5T Hydraulic feeding→Guiding→servo feeding system→ punching→forming  →leveling→cutting→output

B. Structure and features 
This kind of guardrail roll forming machine which can make scaffolding plate 
The machine is including 5T hydraulic decoiler, roll gang, leveling device, plate punching, cutting machine, hydraulic station, PLC system and output table, etc.

C.Main date 
a)Raw material mechanical property and Spec.:
Material：Q235
Steel strip thickness：   1.5～1.8mm
Steel coil bore：    φ508
Steel coil weight：    ≤5T

b)Product Spec.：
Product：According to the drawing
Width of the product：    320mm
Height of the product：   76.5mm
Length of the product：    1000-4000mm
Length tolerance：    ±2mm
Precision of the work piece：Length±1.0mm，hole distance±1.0mm，straightness 0.5mm/M，width tolerance±3mm，punching location degree tolerance：≤0.5mm；degree of symmetry±1.5mm;

c)Technology Spec.：
Forming mode：  cold roll forming   
Working speed：    5-10 m/min
Feeding direction：    Left feeding
Main voltage：    According to the customer demands
Main motor power：  About 37KW

D. Main parts data:
1. Decoiler：                                 
Cantilever type manual decoiler, the load capacity is 5T, Coil boreφ500-600，Coil max diameterφ1200.
Motor power: 4KW 
2.   Leveling and feeding：                               
Wall board type leveling machine, two roller feeding, 9 roller leveling. Leveling material is 40Cr，quenching treatment hardness HRC58º～62º。The leveling machine has guiding 
3.Servo feeding and punching machine
Function：feeding and punching 
Structure：Servo feeding machine and gantry type three groups punching die. It can meet the drawing requirement. Servo motor and brand: YASKAWA motor 4.5KW. 
Punching die material: Punch die use SKH51or DC53（equal to SKD11）die steel with forging and accurate grinding. HRC58-62.
4   Roll forming machine：                               
28 steps mail roller, individual open memorial archway type structure,the column structure material is HT200 with tempering.The stand column cross sectional dimension is 100×80， Shaft diameter is φ80 with thermal refining treatment.the roller material is GCr15, HRC58-62°. Single out shaft down drive gearbox has 28 pcs, bevel gear mod M=10，gearbox material is HT200。Main motor power 37 kw，common motor, using frequency converter to control the speed. We also match helical surface reduction gears, speed ratio 48.57. Using 1.5 inch double row chain to drive between the drive gearboxes.
5 Control system：                                
Using Siemens PLC control system, Yaskawa frequency conver, Siemens touch screen, it can control the all parts of the whole line.