Crf for roof construction for Indian railway

Saibo Science & Technology Railway roll forming machine adopts cassette design, according to customer request, one machine has three cassette units, can produce about 22 kinds of profiles. The rolling material is SS 301, 304, and the thickness range is from 1.25mm to 1.7mm. The forming part is about 7 stations for a quick change, and the replace the cassette units about 1 hour.

Main technology

• Heavy duty uncoiler with coil car
• Full automatic set request length and quantity
• By cassette design one machine can make different profiles
• Non-stop high speed cutting
• Full automatic stacking and packing

Main spec. of line:

• Full line power: about 120KW
• Forming speed: 0-15m/min
• Forming station: about 15-37 stations
• Drive by gear box of each station
• Full line weight: about 80-90Tons
• Roller material: GCR15
• Punching die and cutting die material: D2
• Motor: Siemens
• Control system: Mitsubishi/ Siemens/Panasonic

1. Specification of the material

2. Machine Detailed Parameters

3. Profile drawing
The machine can make 22 profiles in one machine. Adopt cassette design.

Cassette 1 (product length 9440mm-13000mm, need punching)

Cassette 2(product length 18000mm-22000mm,need punching)

Cassette 3:

4. The Chart of Process Flow

Decoiler&coil car→feeding→leveler→pre-cutting→roll forming→cutting→product out


5. Specification of Components

(1) 10T Hydraulic Un-coiler

• Width of feeding: 1250mm
• Capability: 10 Ton
• Inter diameter: 470-520mm
• Maximal out diameter: 1500mm
• Working speed: 0--20m/min adjustable
• Main motor power: 7.5KW AC motor
• Hydraulic power: 5.5kw

(2)Roll forming pedestal
This frame include: feeding, leveler, pre-cutting basic frame, motor drive, gear box system, cutting device

• Feeding is adjustable, have two guide rollers in two side, feeding with the roller
• Leveler shaft 110mm, 40Cr material, 7 rollers for leveler and two station for feeding. Drive power by main forming section. Drive by gear box. Adjust by screw, manual.
• Basic frame: adopt steel plate welding structure
• Roll former has leveling bolts in the base
• Motor power: 45kw X2, total 90kw.
• Transmission: Gear box driving system for each station, include feeding and leveler
• Machine with pre-cutting by hydraulic for change coil only, two cylinder
• After cutting the sheet will come to guide roller in two stations then go to roll forming, guide roller table about 5 meters
• Post cutting: one set of cutting system, 14 sets of cutting blade to change the different profiles.
• Adopt non-stop track cutting system, when cutting the main machine is not stop.
• Servo motor: 4.4kw Yaskawa
• Cutter material: Cr12mov HRC58-62 degree

Sample photo for reference:


(3) Cassette main forming parts ---------3 units

• Iron cast stand, connect with base frame by key
• In feeding stations, the side, down and up need have rollers
• roll station: base on final design, about 7 stations as one unit
• Roll thickness: 1.25-1.7mm,max. Not more than 2mm
• Material: stainless steel, 301 and 304 as mentioned.
• Roller material: Gcr15, 58-62,HRC hardness and chrome plated surface
• Roller stations: cassette 1: 35 stations

• cassette 2: 28 stations
  cassette 3: 26 stations

• Shaft diameter: cassette 1: ￠130mm material: 40Cr with thermal refining

• cassette 2: ￠130mm material: 40Cr with thermal refining

  cassette 3: ￠130mm 40Cr with thermal refining

• Structure: wire-electrode cutting structure

(4) Auto stacker

• Run out motor power: 3KW
• Max speed: 20m/min
• Max stacking length : 11.5m.max can take 14000mm sheet
• Surface of the table with rubber
• The side move out width: 2.5m
• Max stacking thickness: 300mm
• Max stacking weight: about 4 tons
• Quantity: 1

(5) Computer Control Cabinet

• Programmable setting of profile length and quantity
• Operating system language: English and Chinese
• Computer used to control length & quantity. Machine will automatically cut to length and stop when required quantity is achieved