Leading the roll forming industry since1989, Zheng Liming, your best choice.


Our professional engineers have expertise in using technologies. It has a wide scope of range and is widely seen in the field(s) of Tile Making Machine. The research and development team is the core competence to YX29.5-285.5-1142 Cold Rolling Mills for Roof Profile. It enables us to become a leader in the PRODUCTS. XIAMEN ZHENG LIMING METALLURGICAL MACHINERY CO.,LTD will keep focusing on customers' needs and keep up with the industry trends so as to develop the products that better satisfy customers. Our wish is to cover a wide range of global markets and win wider recognition from customers all over the world.

Product Description

This Producing Process Sketch As Below Picture:
YX29.5-285.5-1142 Cold Rolling Mills for Roof Profile

This Profile Drawing As Below Picture:
YX29.5-285.5-1142 Cold Rolling Mills for Roof Profile
General Parameter
1 Item Parameters
2 Model NO. YX29.5-285.5-1142
3 Material Pre-painted galvanized sheet
4 Thickness 0.35-0.8 mm
5 Yield Strength 550 MPa
6 Feed Width 1335 mm
7 Effective width 1142 mm
8 Roll Stages 18 Stages
9 Shafts Diameter ∅95 mm
10 Main Motor Power 11 KW
11 Hydraulic Group Power 5.5 KW
12 Max Line speed of roll Former Approx. 20-25m/min
13 Electric Standard According to local voltage

Machine Components
Hydraulic system to expand coil inner hole, Pump motor: 5.5KW
Taper wedge expand type
Double level expanding palms with two coil bore variations of 480-530 and 580-63

Load Capacity: Max. 10 Tons; Coil Width Max. 1250mm
Coil Outer-diameter Max. 1500mm
Retarding Motor to turn the coil, Motor: 5.5KW
Maintain arm on the top, to avoid coil become loose when stop to be packed.
The arm to be driven by pneumatic cylinder, manual control
The air supplier should be provide by the user
With coil car
Up/Down stroke of Coil Car: Max. 450mm
Forward/backward stroke of Coil Car: Max. 2000mm

YX29.5-285.5-1142 Cold Rolling Mills for Roof Profile

B. Entry roller & Manual Pre-shearing device           Un-powered
Smart cut control, to cut off the end of the final piece of sheet only
Working thickness up to 0.8mm

C . Polythene Film-on Device
Un-powered film-on device to cover plastic film on the surface of sheet
YX29.5-285.5-1142 Cold Rolling Mills for Roof Profile

D. Cold Rolling Mills
Feeding section with guide
Gear/Sprocket driving;18-step to form;
New stand frame design
Rollers manufactured from 45#, CNC lathes, hard Chrome Coated
Shafts Diameter=ф95mm, Precision Machined
Main motor =11 KW, Frequency speed control
Max Line speed of roll Former: Approx. 20-25m/min
Protection Mesh Cover (full mesh type) Above Roll-former To Avoid Hands Go Inside
YX29.5-285.5-1142 Cold Rolling Mills for Roof Profile

E.  Hydraulic Cutting Device
Stop to cut, Post cut, No Blanking cut
Cutting tool material : Cr12, Heat treatment;
Pump motor =5.5KW

F. PLC Control System
Control the quantity & cutting length automatically;
Combined with: PLC, Touch Screen, Inverter (SIEMENS), Encoder (Omron), REMOTE CONTROL etc
Cut-to-length tolerance≤±2 mm
Control Voltage 24V
YX29.5-285.5-1142 Cold Rolling Mills for Roof Profile

Stacking Length Max. 10 meters
Pile up the sheet after cutting automatic.
Equipped with a bottom pallet to be pull out by motor driven
Support arm action in vertical direction, driven by pneumatic system
Action controlled by Pneumatic system.
The air supply provided by the user
YX29.5-285.5-1142 Cold Rolling Mills for Roof Profile

YX29.5-285.5-1142 Cold Rolling Mills for Roof Profile YX29.5-285.5-1142 Cold Rolling Mills for Roof Profile
After-Sale Service
In correct operation & maintaining, the machine is guaranteed for one year since leaving our factory excludes the electric elements.
If installation is needed, WE will dispatch a technician to the buyer's factory abroad to assist regulating the machine with charge free. The buyer should assist US to get the Chinese technician's visa and should pay for the roundtrip air ticket and the local accommodation.
If installation is needed, the buyer shall make the following preparation before arrival of technicians.

Terms Of Trade
1.Package & Shipment: Facility water-proof packing, Control cabinet packed in wooden packing.
2.Payment: 30%payment by T/T is required as deposit within a week since the contract signing date.70% payment by T/T is required before the machine be send out of factory.
Basic Information
  • Year Established
  • Business Type
  • Country / Region
  • Main Industry
  • Main Products
  • Enterprise Legal Person
  • Total Employees
  • Annual Output Value
  • Export Market
  • Cooperated Customers

contact US


The first thing we do is meeting with our clients and talk through their goals on a future project. During this meeting, feel free to communicate your ideas and ask lots of questions.


They are all manufactured according to the strictest international standards. Our products have received favor from both domestic and foreign markets.
They are now widely exporting to 200 countries.


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