This compact industrial roll forming machine converts flat metal coil into trapezoidal roofing and wall-cladding panels through a continuous multi-stage cold-forming process. The machine is suitable for manufacturers producing roof sheets for workshops, warehouses, agricultural buildings, prefabricated structures, garages and commercial construction projects.
The equipment shown features a rigid welded base, precision-machined forming rollers, a side-mounted electrical control cabinet and an operator-friendly touchscreen. Its progressive roller arrangement gradually forms each rib and side-lap edge, helping maintain panel geometry while reducing sudden material deformation and unnecessary coating damage.
Compact floor-space requirement for efficient workshop installation
Automatic PLC control for length, quantity and batch production
Touchscreen interface for quick parameter entry and machine monitoring
Precision forming rollers for consistent trapezoidal rib geometry
Continuous production with stable speed and repeatable panel dimensions
Custom profile engineering from a drawing, sample or required cover width
Suitable for galvanized, Galvalume, color-coated steel and aluminum coils
Expandable with decoiling, leveling, cutting, stacking and packaging equipment
Technical notice: The specifications below are typical reference values. Final machine parameters are confirmed according to the approved panel drawing, material grade, thickness range, target speed and local electrical standard.
| Attribute | Typical Specification / Description |
|---|---|
| 1. Product name | Compact PLC trapezoidal roofing sheet roll forming machine |
| 2. Equipment category | Automatic cold roll forming production equipment |
| 3. Main function | Producing trapezoidal roof and wall-cladding sheets |
| 4. Finished profile | Ribbed trapezoidal metal panel |
| 5. Forming principle | Continuous multi-pass cold roll forming |
| 6. Suitable materials | GI, GL, PPGI, PPGL and aluminum coil |
| 7. Typical material thickness | Approximately 0.30-0.80 mm; customized ranges available |
| 8. Material strength | Machine engineered for the specified yield and tensile strength |
| 9. Input coil width | Customized according to the finished panel profile |
| 10. Effective cover width | Produced according to the approved profile drawing |
| 11. Rib height | Customized for strength, drainage and appearance |
| 12. Rib pitch | Customized according to the required trapezoidal geometry |
| 13. Side-lap edge | Designed for overlap, alignment and weather resistance |
| 14. Typical forming speed | Approximately 10-25 m/min, depending on profile and cutting method |
| 15. High-speed option | Available with upgraded drive and servo tracking cut |
| 16. Forming stations | Typically 12-20 stations, determined by profile complexity |
| 17. Roller material | Precision-machined 45# steel or optional alloy steel |
| 18. Roller surface treatment | Hard chrome plating, polishing and corrosion protection |
| 19. Roller machining | CNC machined according to the approved forming sequence |
| 20. Main shaft material | Heat-treated high-strength steel |
| 21. Typical shaft diameter | Approximately 70-95 mm, selected according to forming load |
| 22. Bearing arrangement | Industrial bearing blocks for stable continuous operation |
| 23. Main frame | Heavy-duty welded steel base |
| 24. Frame treatment | Stress-relieved, machined and aligned before assembly |
| 25. Forming-stand structure | Steel plate or arch-style support structure |
| 26. Transmission type | Chain, gear or gearbox drive according to torque requirement |
| 27. Main drive power | Typically 5.5-11 kW, matched to material and speed |
| 28. Hydraulic power | Typically 4-7.5 kW when hydraulic cutting is included |
| 29. Control system | PLC automatic control |
| 30. Operator interface | Touchscreen HMI with production-data display |
| 31. Speed regulation | Variable-frequency inverter control |
| 32. Length measurement | Electronic encoder measuring system |
| 33. Length programming | Finished length entered through the HMI |
| 34. Batch setting | Automatic quantity entry, counting and batch stop |
| 35. Operating modes | Automatic, manual and jog modes |
| 36. Cutting method | Hydraulic post-cut, pre-cut or optional tracking cut |
| 37. Cutting blade material | Cr12, Cr12MoV or equivalent hardened tool steel |
| 38. Typical length accuracy | Approximately +/-1.5 mm under normal production conditions |
| 39. Blade profile | Matched to the finished trapezoidal sheet shape |
| 40. Feeding guide | Adjustable side guides for accurate strip centering |
| 41. Entry leveling | Optional multi-roll leveling unit |
| 42. Decoiler type | Manual, hydraulic or automatic loading decoiler |
| 43. Typical decoiler capacity | 3-5 tons; heavier capacities available |
| 44. Coil inner diameter | Typically 450-550 mm or customized |
| 45. Coil outer diameter | Selected according to coil weight and workshop layout |
| 46. Coil loading method | Crane-assisted, hydraulic expansion or coil-car loading |
| 47. Output support | Run-out tables or roller conveyor |
| 48. Stacking option | Manual, pneumatic, servo or vacuum stacking system |
| 49. Punching option | Optional pre-punching or inline hydraulic punching |
| 50. Marking option | Optional inkjet, laser or embossing identification |
| 51. Electrical voltage | 220 V, 380 V, 400 V, 415 V, 440 V or local standard |
| 52. Frequency | 50 Hz or 60 Hz |
| 53. Electrical phase | Three-phase industrial power supply |
| 54. Electrical components | International or customer-specified brands available |
| 55. Electrical cabinet | Independent ventilated cabinet with organized wiring |
| 56. Emergency protection | Emergency-stop buttons and motor overload protection |
| 57. Safety guarding | Protective covers and warning labels around moving sections |
| 58. Lubrication | Accessible lubrication points with optional centralized system |
| 59. Surface finish | Industrial primer and durable machine topcoat |
| 60. Machine color | TOPPO standard color or buyer-selected color |
| 61. Production direction | Left-to-right or right-to-left arrangement |
| 62. Machine footprint | Compact layout customized to station quantity and accessories |
| 63. Machine weight | Determined by frame design and final configuration |
| 64. Profile customization | Designed from customer drawing, sample or required cover width |
| 65. Profile-change option | Spacer, cassette, quick-change or double-layer solution |
| 66. Material utilization | Continuous forming helps reduce scrap and improve coil yield |
| 67. Surface protection | Progressive forming helps minimize scratches on coated sheet |
| 68. Noise and vibration control | Rigid frame and aligned transmission improve operating stability |
| 69. Quality inspection | Assembly inspection, no-load test and sample-panel trial |
| 70. Documentation | Operation manual, electrical diagram, foundation drawing and maintenance guide |
| 71. Standard accessories | Control cabinet, tooling, receiving tables and contracted auxiliary units |
| 72. Spare parts | Recommended wearing parts supplied according to order scope |
| 73. Installation support | Remote guidance or optional on-site commissioning |
| 74. Operator training | Operation, adjustment, maintenance and safety instruction |
| 75. Packaging | Export-standard protective packing for sea or land transport |
| 76. Custom manufacturing | OEM and ODM configurations supported |
Coil loading: The raw-material coil is installed on the decoiler and aligned with the line.
Guided feeding: Adjustable entry guides center the strip before the first forming station.
Progressive forming: Multiple roller stations gradually create the trapezoidal ribs and overlap edges.
Electronic measurement: The encoder measures panel travel and sends real-time length data to the PLC.
Automatic cutting: The cutting unit operates when the programmed length is reached.
Receiving and stacking: Finished panels move to support tables or an optional automatic stacker.
The finished panels are suitable for industrial workshop roofs, warehouse walls, logistics facilities, agricultural sheds, commercial buildings, garages, carports, prefabricated houses, modular buildings, temporary structures and general steel-building projects.
Manual decoiler, compact roll former, hydraulic cutter and receiving tables
Hydraulic decoiler with coil car and entry leveling unit
High-speed line with servo tracking or flying-cut technology
Inline punching, marking and production-data recording
Double-layer machine for two roof profiles on one frame
Automatic stacking, counting, strapping and packaging system
Please provide the finished-panel drawing, raw-material type, material grade, thickness range, input coil width, effective cover width, rib height, rib pitch, required line speed, preferred cutting method, local voltage and desired auxiliary equipment. These details allow the roller tooling, shaft load, motor power and control strategy to be matched to the actual production requirement.
Before shipment, the complete machine is assembled, aligned and test-run. The forming sequence, shaft alignment, transmission operation, cutting action, encoder measurement, PLC program and sample-panel dimensions are checked against the approved technical specification.
Clean forming rollers and remove metal particles after production.
Lubricate bearings, chains, gears and guide components regularly.
Check hydraulic oil, hoses, filters and pressure settings when applicable.
Verify cutting-blade clearance when changing material thickness or grade.
Keep the electrical cabinet clean, dry and properly ventilated.
Inspect fasteners, transmission alignment and safety devices periodically.
TOPPO provides remote installation guidance, commissioning assistance, operator training, maintenance recommendations and spare-parts support. Optional on-site engineering service can be arranged according to the project destination and contract terms.



