Production line and factory setup overview
A small cold-roll-forming line converting purchased GI, PPGI or PPGL coils into one corrugated roofing and wall-sheet profile through coil receiving and coating inspection, rated decoiling, entry guiding and optional leveling, progressive multi-stand roll forming, encoded length measurement, flying or stop hydraulic cutting, run-out support, sheet stacking, dimensional and coating inspection, bundling and dry dispatch. It does not galvanize, paint or manufacture steel coil.
Recommended lowest-entry line configuration Launch one locally accepted corrugated profile and one coil-width/thickness window, for example 0.35-0.60 mm GI/PPGI, after contractor confirmation. Specify a rated 5 t decoiler with hold-down and brake, entry guide, 16-18 forming stands, guarded chain/gear drive, PLC/encoder, hydraulic post-cut matched to the profile, 6-12 m run-out tables, sheet gauges and manual stacking. Add a hydraulic coil car, leveler and automatic stacker only when coil weights and volume justify them.
Production process and implementation sequence
- Coil receiving, grade/coating and damage inspection
- Rated coil loading and controlled decoiling
- Entry guiding and optional leveling
- Progressive corrugation through forming stands
- Encoder length measurement
- Hydraulic profile cutting
- Supported run-out and sheet stacking
- Profile, length, coating and bundle release
Products, capacity and market fit
- Afghan warehouses, shops, homes and factories consume corrugated roofing and cladding sheets.
- Imported coated coil can be converted locally to exact project lengths with less transport damage and scrap.
- One accepted profile avoids incompatible overlaps and excess roller-tooling inventory.
- Coil grade, coating, roll geometry and cut length determine roof watertightness and warranty.
- Corrugated galvanized roofing sheet - One profile drawing, coil grade/coating, base-metal thickness, effective cover width, length and tolerance - Homes, shops, warehouses and industrial buildings
- Prepainted roofing/cladding sheet - Separate colour, paint system, coating mass and handling/warranty approval - Commercial and architectural projects
Core production machinery and line specifications
| Machine / stage | Function / value | Production note |
|---|---|---|
| Rated decoiler with brake/hold-down | Safely supports and feeds heavy coil | 5 t entry basis |
| Entry guide and optional leveler | Centers strip and controls coil set | Coil-width window |
| Multi-stand roll former | Forms one corrugated profile progressively | 16-18 stand basis |
| PLC, encoder and hydraulic profile cutter | Controls quantity, length and cut geometry | Matched cutter die |
| Run-out tables and manual stack aids | Supports long thin sheets | 6-12 m product length |
| Sheet/profile inspection tools | Releases dimensions and coating | Template, micrometer and gauges |
Raw materials, utilities and factory requirements
- Certified GI, PPGI or PPGL coils by steel grade, BMT and coating system
- Straps, edge protectors, waterproof wrap and bundle labels
- Roller bearings, chains/gears, cutter blades and hydraulic spares
- Three-phase power and hydraulic oil management
- Rated crane/forklift or coil-loading system
- Long straight guarded line and supported run-out area
- Dry coil store with chocks and safe coil-rack design
- Covered finished-sheet stacking protected from water and abrasion
Indicative low-entry investment and implementation plan
These planning ranges prioritize economical machinery, local labor and local civil works. Final pricing follows confirmed capacity, product specification, delivery terms and site conditions.
| Scope | Indicative range | Entry-plan note |
|---|---|---|
| 5 t decoiler, guides and roll former | US$13k-32k | One profile |
| PLC, hydraulic cutter and run-out tables | US$6k-16k | Manual stacking entry |
| Coil handling, inspection and packing | US$4k-13k | Safe heavy-coil scope |
| Freight, installation, cutter and spares | US$5k-14k | Supplier trial with contracted coil |
| Indicative installed low-entry total | US$28k-75k | Coil coating, building and coil stock excluded |
Detailed proposal and next step
The proposal contains the complete line flow, machinery scope, raw-material and utility requirements, implementation stages and indicative entry planning. Final configuration follows confirmed products, capacity, site and budget.