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3-Wave Guardrail Roll Forming Machine Technical Parameter
| Raw material | Galvanized sheet, hot rolled plate |
| Yield strength (MPa) | 235 |
| Raw material thickness (mm) | 3 |
| Raw material (mm) | ≤ 800 |
| Coil ID (mm) | Φ508 \ Φ610 |
| Coil OD (mm) | ≤ φ1200 |
| Coil Weight (t) | ≤ 6 |
| Forming Speed (m/min) | About 10 (cutting time excluded) |
| Product Length Tolerance (mm) | ±3 |
| Power Source | 380V, 50Hz, 3Phase (as per actual design) |
3-Wave Guardrail Making Machine Working Flow
Loading material → decoiling → levelling → feeding material → punching hole → roll forming → cutting to length → conveying plates to the runout table
3-Wave Guardrail Roll Forming Machine Component List
| Item | Description | Quantity | Remarks |
| Decoiler | Hydraulic decoiler | 1 set | |
| Leveling device | 5 rolls leveler | 1 set | |
| Servo feeding device | Driven by servo motor | 1 set | |
| Punching device | Punching hole | 1 set | |
| Loop device | 2 pcs | ||
| Guide feeding device | Vertical roller guide | 1 pc | |
| Roll former | Separate roller station | 1 pc | |
| Post cutting device | Post-cutting | 1 1 set | With one mould |
| Runout table | Unpowered runout table | 1 pc | |
| Hydraulic system | Dedicated system | 2 pcs | |
| Electric control section | Control the production line | 1 pc |
Components Description & Parameter
1. Decoiler
Hydraulically expand mandrel, Electric Motor drives mandrel to decoil, with press arm.Operation Mode is Inching, the decoiler with a Brake Equipment.
2. Leveling device (shovel head excluded)
3. Servo feeding device: controlled by servo motor.
4. Punching device
(1) It is designed with multi-punching units to punch holes for 3-wave guardrails.
(2) Punching speed: 40times/min (the time for feeding materials is excluded).
5. Loop device
Carrier rolls surface with galvanized treatment.
6. Roll former
(1) Structure
a. This roll former adopts the separate column station structure.
b. Parameter
Number of roller stations: about 20 (as per actual design)
Shaft diameter: Ø90 - Ø100mm (as per actual design)
Roller station material: QT270
Shaft material: 40Cr with thermal refining treatment
Roll former motor power: about 55kW
(2) Roller material
a. Roller material: Cr12, after quenching the hardness reaches HRC 58 - 62.
b. Polished surface finish.
7. Post-cutting device
(1) Hydraulic cutting.
(2) Rated pressure of hydraulic system: 20MPa.
8. Runout table
This table consists of support and rollers. It can support 2 pieces of panels with each piece as long as 3 meters.
9. Hydraulic system
It consists of motor oil pump, hydraulic valve, manometer, filter and so on.
10. Electric control section
(1) Mitsubishi PLC.
(2) Language of PLC system: English.
(3) Omron encoder.
Safety Precautions & Transportation
1. Moving elements are covered with shield, and painted with caution marks.
2. Looping pit for guardrail should be set in the buyer’s factory.
3. Before loading container, each part should be coated with antirust oil (except that the surface is covered with paint).
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