by melinda
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2 waves 3 waves highway guardrail forming machine is a fully automated machine that processes coiled steel strips (usually made of Q235 or Q345 steel) into final guardrail through a series of continuous cold bending forming processes. The entire production line integrates multiple stages such as uncoiling, leveling, forming, length cutting, and punching.

This guardrail forming machine can produce both 2 waves and 3 waves profile. Only need change some rollers. The profile drawing of 2 waves and 3 waves guardrail refer to below drawing please.


The working flow of highway guardrail make machine

The main component of guardrail roll forming machine includes hydraulic uncoiler, leveling machine, punching and cutting machine, main roll forming machine, runout table. Let's introduce the W beam guardrail roll forming machines part by part.
- Hydraulic uncoiler capacity 10 tons
- Uncoiler: driven by electric motor , mandrel shrink and expand by hydraulic
Uncoiler capacity: 10T
Uncoiler mandrel suitable for coil ID: φ508mm/φ610mm
Uncoiler mandrel expand and shrink range: φ450-φ530mm/φ630mm
Main motor power: 5.5kw, Siemens Innomotics brand
Hydraulic motor power:3kw, Siemens Innomotics brand
Hydraulic oil pump: vane pump
Solenoid valve: Beijing Huade brand - Electric control system, inverter, low capacity electric parts adopt famous brand

2. Leveling machine
- Two set pinch rollers
- Leveling shaft : up 3 + down 4, total 7 leveling rollers
- Leveling shaft diameter: Φ90mm
- Leveling shaft material: 40Cr , tempering treatment, HRC 48-52
- Leveling shaft surface treament:high frequency quenched treament, fine griding machine processing
- The leveler is equipped with guide rollers at the front and rear, and two groups of 4 rollers on the left and right to control the up and down, left and right movement of the strip, and a pressing device is provided at the feed device.
- Leveler motor power: 7.5KW, frequency control, Siemens Innomotics brand
- Leveling steel strip width: 300-800mm

3. Servo feeder
- Servo motor power: 4KW, planetary reducer
- Feeding rollers diameter: 100mm
- Feeding rollers material is 40Cr , heat treatment, HRC 48-52

4. Pre punching and pre cutting
- Machine structure: 4 column hydraulic punching machine, the steel plate do tempering treatment after welding
- Punching mould: 2 set
- Pumching mould material: Cr12MoV, quenched treatmente, HRC 58-62
- Cutting blade material: Cr12MoV, quenched treatmente, HRC 58-62
- Oil cylinder diameter ¢230mm,¢100mm, stroke30mm
- Hydraulic valve:Beijing Huade brand
- Hydrualic pump: YUCI-YUKEN,YBI-10
- All the sealing rings of the hydraulic cylinder are made of Taiwanese brands
- Hydraulic motor power: 22KW , Siemens Innomotics brand

5. Fast transport table
- After the steel plate is cut, it is quickly feed into the main roll forming machine.
- Motor power 2.2KW, 4-pole ordinary motor, ZQ250 reducer, speed ratio 31.5;
- feed roller diameter ¢100mm, material is 40Cr, heat treated HRC48-52

6. Main roll forming machine for W beam 2 waves 3 waves
- Rolling station: 17 rolling station
- Vertical guide rollers: 5 stands
- Shaft diameter: 110mm
- Shaft material is 40Cr, quenched and tempered.
- 17 GY230 gearboxes for single-shaft underdrive
- Main motor power: 22KW x 2 set, Siemens Innomotics brand
- Connected to the rollers via universal joint couplings, the machine rolls at a speed of approximately 3-4 sheets per minute for a 4320 mm long finished product.


7. Automatic stacker
- Square tube welded, with movable rollers
- 4m length
- Up and down control by servo motor, power 3kw
- Side move control by servo motor, power 1.5kw
- Cylinder swing blanking

8. PLC control cabinet
- Inverter: Siemens brand
- PLC : Siemens
- Computer operating panel: Siemens
- Encoder: Koyo or Encoder
- Voltage: 380V,50HZ, 3Phase (customized according to customer requirements)
- Other electrical components: all domestic well-known brands

9.Equipment requirements for factory conditions
Power supply voltage 380V±10%, frequency 50Hz±10%.
Application environment: -10°C-50°C, humidity 20%-80%。
Protection level, electrical control cabinet, operating table, motor: IP40
The main power of the whole set is about 90KW
During equipment installation, the demander shall provide auxiliary facilities such as personnel, spreader, and supporting tools
Guardrail W beam Machine working video for your reference
Real feedback from different clients for our machines







