A double layer roll forming machine is an industrial metal forming system that produces two different panel profiles on one machine. The two forming lines are stacked vertically. They share one decoiler, one cutting system, and one PLC control system.
Instead of buying two separate machines, operators can switch between profiles in under 5 minutes via PLC selection — compared to 2–4 hours for a full roll change on a single layer machine.
🏭 What Does This Dual Layer Roll Forming Machine Produce?
Our versatile Μηχανή σχηματισμού ρολού διπλής στρώσης manufactures two customizable panel types essential for various industries:
Trapezoidal Profiles (e.g., AG Panel/Trimdek): Often used for commercial structures and industrial roofing due to superior strength. If your focus is on a single heavy-duty profile, explore our specialized [AG Panel Roll Forming Machine] or our dedicated [Μηχανή σχηματισμού ρολού Trimdek] options.
Corrugated/Wavy Profiles (e.g., Custom Orb/Traditional Corrugated): Ideal for residential roofing, wall cladding, and agricultural applications. For traditional wave forms, see our [Corrugated Metal Panels Roll Forming Machine]. For unique designs like Spandek, check out the [Μηχανή σχηματισμού ρολού προσαρμοσμένης σφαίρας]
While this machine operates in a non-concurrent mode, its ability to quickly swap profiles makes it the most flexible and valuable asset for businesses managing diverse project requirements across construction, agriculture, and industrial sectors.
TL;DR: BELI Double Layer Roll Forming Machine
TL;DR — Double Layer Roll Forming Machine by BELI ROLLFORMING
- ✅ 2 profiles on 1 machine — trapezoidal + corrugated, IBR + step tile, etc.
- ✅ 40+ forming stations — 42CrMo chromed rollers, NSK bearings
- ✅ 12–15 m/min speed | ±2 mm cut accuracy
- ✅ 0.25–0.8 mm material thickness | galvanized, color-coated, aluminum
- ✅ Siemens PLC + Yaskawa inverter | 380V–480V customizable
- ✅ From USD 35,000 FOB Shanghai
- ✅ 24-month warranty (mechanical & hydraulic)
- ✅ 90 working days delivery after deposit
⚙️ Key Components: Built for Precision and Durability
Hydraulic Decoiler
- Ικανότητα: 3–10 tons (by configuration)
- Mandrel: Motor-driven expanding type (480–520 mm ID)
- Max coil OD: 1200–1500 mm
- Brake: Pneumatic — keeps steady tension to prevent coil overrunning
- Προαιρετικός: Coil car for safe loading
Feed & Guide Device
- Hand-wheel adjustable guides
- Keeps material centered and straight entering the forming stations
- Reduces material skew and improves profile accuracy
Double Layer Roll Forming Machine Main Unit
- Two stacked forming lines: typically 15–25 stations per layer
- Rollers: 42CrMo (4140) steel, hard chrome plated, runout ≤±0.03 mm
- Shafts: 40Cr steel, Ø75 mm, HB220–260
- Ρουλεμάν: NSK spherical roller bearings at every shaft support
- Drive: 1.0″ (16B) heavy-duty chain + gear, powered by 7.5 kW motor
- Έλεγχος ταχύτητας: Yaskawa frequency inverter
Hydraulic Cutting System
- Τύπος: Post-cut hydraulic shearing
- Εξουσία: 7.5 kW hydraulic pump, 12–16 MPa
- Blades: Cr12Mov, HRC 58–62°
- Accuracy: ±2 mm
- Trigger: Omron/Koyo encoder tracks material travel in real time
PLC Control System
- PLC: Siemens + touch screen HMI
- Inverter: Yaskawa for smooth speed control
- Modes: Automatic and manual
- Languages: English and Chinese
- Χαρακτηριστικά: Speed adjustment, length setting, cut count, fault diagnostics
Stacking System
- Πρότυπο: Two 3m manual collection tables (included)
- Προαιρετικός: 6m or 12m pneumatic auto stacker for automated stacking
📝 Technical Specifications for the Double Layer Roll Forming Machine
Machine Overview
| Παράμετρος | Προσδιορισμός |
|---|---|
| Τύπος Μηχανής | Double Layer Roll Forming Machine (non-simultaneous) |
| Profile Combination | Customizable (e.g., trapezoidal + corrugated, IBR + step tile, roof panel + wall panel) |
| Σταθμοί σχηματισμού | 16–24 stations per layer (varies by profile complexity) |
| Ταχύτητα σχηματισμού | 12–15 m/min (adjustable) |
| Cut-to-Length Accuracy | ±2 mm |
Material Specifications
| Παράμετρος | Προσδιορισμός |
|---|---|
| Τύπος υλικού | Galvanized steel, color-coated steel, ZINCALUME® steel, COLORBOND® steel, aluminum, stainless steel |
| Όριο απόδοσης | Min 550 MPa |
| Πάχος υλικού | 0.25–0.8 mm |
| Feed Width | 750–1250 mm (varies by profile design) |
Roller & Shaft Specifications
| Παράμετρος | Προσδιορισμός |
|---|---|
| Υλικό κυλίνδρου | 42CrMo (AISI 4140) steel, hard chrome plated |
| Roller Runout | ≤±0.03 mm (concentricity) |
| Υλικό άξονα | χάλυβας 40Cr |
| Διάμετρος άξονα | Ø75 mm |
| Shaft Hardness | HB220–260 |
Σύστημα κίνησης
| Παράμετρος | Προσδιορισμός |
|---|---|
| Main Motor | 7.5 -11 KW C motor |
| Τύπος μονάδας δίσκου | 1.0″ (16B) heavy-duty chain + gear transmission |
| Frequency Inverter | Yaskawa |
| Κωδικοποιητής | Omron / Koyo |
Σύστημα κοπής
| Παράμετρος | Προσδιορισμός |
|---|---|
| Μέθοδος κοπής | Hydraulic shearing (post-cut) |
| Cutting Motor | 7.5 kW hydraulic pump |
| Υλικό λεπίδας | Cr12Mov, HRC 58–62° |
| Hydraulic Pressure | 12–16 MPa |
Electrical & Control
| Παράμετρος | Προσδιορισμός |
|---|---|
| Σύστημα PLC | Siemens PLC + touch screen HMI |
| Frequency Inverter | Yaskawa |
| Κωδικοποιητής | Omron / Koyo |
| Operating Voltage | 380V–480V / 3Phase / 50Hz or 60Hz (customizable) |
| Operating Mode | Automatic / Manual |
| Language Interface | English / Chinese |
Αποκολλητής
| Παράμετρος | Προσδιορισμός |
|---|---|
| Τύπος | 3–10 Ton hydraulic decoiler (expanding mandrel type) |
| Max Coil Outer Diameter | 1200 χιλ. |
| Coil Inner Diameter Range | 480–520 mm |
| Drive | Motor-driven expansion + pneumatic brake |
| Loading Method | Optional 5 Ton coil car available |
Bearing
| Παράμετρος | Προσδιορισμός |
|---|---|
| Brand | NSK (spherical roller bearings) |
Stacker (Optional)
| Πρότυπο | 2 × 3m manual collection tables (included) |
| Option A | 6m pneumatic auto stacker — USD 10,000 |
| Option B | 12m pneumatic auto stacker — USD 18,000 |
Double Layer vs Single Layer Roll Forming Machine
| Χαρακτηριστικό | Single Layer Machine | BELI Double Layer Machine |
|---|---|---|
| Profiles per machine | 1 profile per machine | 2 profiles per machine (upper + lower layer) |
| Factory floor space | 2 machines needed for 2 profiles | 1 machine = ~50% space saving |
| Profile changeover time | Full roll change: 2–4 hours | PLC layer selection: under 5 minutes |
| Total forming stations | Typically 15–20 stations | 30–50 stations total (varies by profile) |
| Ταχύτητα σχηματισμού | 10–20 m/min | 12–15 m/min (single layer active) |
| Simultaneous operation | Δ/Υ | No — layers cannot run simultaneously |
| Investment cost | Cost of 2 separate machines | From USD 35,000 (30–40% less than 2 machines) |
| Best suited for | High-volume dedicated production | Mixed / seasonal production of 2 profile types |
| Υλικό κυλίνδρου | Varies by manufacturer | 42CrMo (4140), hard chrome plated |
| Σύστημα ελέγχου | Varies by manufacturer | Siemens PLC + Yaskawa inverter |
| Ρουλεμάν | Varies by manufacturer | NSK spherical roller bearings |
| Εγγύηση | Ποικίλλει | 24 months (mechanical & hydraulic) |
Applications of Double Layer Roll Forming Machine
BELI double layer machines produce two profile types on one machine — customizable combinations include trapezoidal roof panels, corrugated sheets, IBR profiles, step tiles, and wall cladding panels.
Common uses:
- 🔧 Roofing — warehouses, commercial buildings, houses, farm buildings
- 🏢 Wall Cladding — steel buildings, facades, insulated sandwich panels
- ❄️ Cold Storage — cold room walls and ceilings (corrosion-resistant cladding)
- 🏗️ Prefabricated Buildings — container houses, modular buildings, site offices
- 🌉 Infrastructure — airport hangars, station canopies, highway toll booths
- 🔨 Renovation — replacing old roofs (produce both wall + roof panels on one machine)
Why Choose BELI ROLLFORMING
Build Quality — Global Parts, Fair Price
BELI uses internationally recognized components throughout every machine:
- 🇩🇪 Siemens — PLC and touch screen
- 🇯🇵 Yaskawa — frequency inverter
- 🇯🇵 NSK — bearings
- 🇯🇵 Omron / Koyo — encoders
- 🔩 42CrMo (4140) — chromed rollers
Every machine runs for 48 hours non-stop at the factory before shipment. This catches problems early — so you don’t find them on your factory floor.
BELI vs Chinese Manufacturers
| Χαρακτηριστικό | Typical Chinese Maker | BELI ROLLFORMING |
|---|---|---|
| PLC | Domestic or unbranded | Siemens |
| Inverter | Domestic or generic | Yaskawa |
| Ρουλεμάν | Unbranded or domestic | NSK (Japan) |
| Υλικό κυλίνδρου | GCr15 or 45# steel | 42CrMo (4140) |
| Roller treatment | Chrome (variable) | CNC machined + hard chrome |
| Roller runout | ±0.05 mm or uncontrolled | ≤±0.03 mm |
| Shaft hardness | Not specified | HB220–260 |
| Cutting blade | Generic Cr12 | Cr12Mov, HRC 58–62° |
| Factory testing | None or brief | 48-hour run test |
| Κωδικοποιητής | Unbranded | Omron / Koyo |
| Ανταλλακτικά | Usually none | Full kit included |
| Εγγύηση | 12 months (limited) | 24 μήνες |
| Overseas install | Usually not available | Available (5–10 days) |
| After-sales | WhatsApp only | Dedicated manager + remote support |
Bottom line: Many Chinese makers cut costs with unbranded parts, cheaper steel, and no factory testing. BELI charges more because Siemens/Yaskawa/NSK components and 48-hour testing cost more — but they last longer and break down less.
BELI vs US / European Manufacturers
| Χαρακτηριστικό | US / European Maker | BELI ROLLFORMING |
|---|---|---|
| Machine price | USD 120,000–250,000 | USD 35,000–80,000 |
| PLC | Siemens / Allen-Bradley | Siemens |
| Ρουλεμάν | SKF / Timken / FAG | NSK (equivalent) |
| Υλικό κυλίνδρου | 4140 / D2 / tool steel | 42CrMo (4140 equivalent) |
| Χρόνος παράδοσης | 16–24 weeks | 90 working days |
| Custom profile design | $5,000–15,000 extra | Συμπεριλαμβανομένος |
| Δυναμικό | Standard (e.g., 480V/60Hz) | Προσαρμόσιμο |
| After-sales response | 1–4 weeks (parts) | 3–5 days (air freight) |
| Εκπαίδευση | Usually included | Included (up to 2 operators) |
| Spare parts cost | 2–4× higher | Standard pricing |
| 5-year total cost | USD 180,000–350,000+ | USD 55,000–110,000 |
Bottom line: US and European machines cost 3–5× more for similar specs. Same core brands (Siemens, NSK), a fraction of the price. BELI also provides overseas installation and a 24-month warranty that beats the Chinese 12-month standard.
What Makes BELI Different
80+ Engineers — Deep R&D and production expertise. Factory manager Peter Xu: 30+ years experience.
Global Component Brands — Siemens, Yaskawa, NSK, Omron. Parts available worldwide.
48-Hour Factory Run Test — Every machine tested non-stop before shipping. Problems caught early.
Custom Profile Design Included — No extra charge for roll tooling design. Send your drawing or sample.
Turnkey Service — Design → Build → Test → Ship → Install → Train → Support. Full cycle.
Transparent Pricing — Standard vs optional items clearly listed. No hidden fees.
Full Spare Parts Kit — Limit switches, encoder, NSK bearings, seals, fittings. Enough for the first year.
Working Video
Warranty & Delivery
Εγγύηση
- 🕐 24 μήνες from installation date
- ✅ Covers: mechanical and hydraulic parts (labor + replacement)
- ❌ Excludes: electrical components, wear parts, damage from misuse or poor maintenance
- ⏰ Based on single-shift (40 hrs/week) — pro-rata for multi-shift
Delivery
- 📦 90 working days after 30% deposit
- 🚢 FOB Shanghai, China
Payment
- 💳 30% deposit (non-refundable) + 70% before shipment
- 📋 Quote valid for 30 days (subject to exchange rate)
Installation & Training
- 👷 Overseas installation available (extra cost)
- ⏱️ 5–10 days on-site (setup, calibration, test runs, training)
- 👨🔧 Up to 2 operators trained
Spare Parts Included
- Limit switches ×3, encoder ×1, NSK bearings ×5
- Pneumatic fittings ×5, hydraulic fittings ×5
- O-ring seals, hydraulic hoses, and other consumables
❓Frequently Asked Questions (FAQ)
It is a machine that produces two different metal profiles on one base. Common combinations: trapezoidal + corrugated, IBR + step tile, roof panel + wall panel. The two layers share one decoiler, one cutter, and one PLC. They cannot run at the same time — you switch layers on the PLC in under 5 minutes.
Starting from USD 35,000 FOB Shanghai. Price depends on profile types, material thickness, and optional equipment. Popular add-ons: coil car (1,500–3,500),autostacker(1,500–3,500),autostackεεε(8,000–20,000). Contact BELI for a confirmed quote.
Galvanized steel, color-coated steel, ZINCALUME®, COLORBOND®, aluminum, and stainless steel. Thickness: 0.25–0.8 mm. Yield strength: up to 550 MPa. Feed width: 750–1250 mm (varies by profile). Custom configs available.
A single layer machine makes one profile. To switch, you need a full roll change (2–4 hours). A double layer has two stacked forming lines sharing one base. You switch profiles in under 5 minutes via PLC. It saves ~50% floor space και 30–40% investment vs buying two machines.
12–15 meters per minute. Driven by a 7.5 kW motor with Yaskawa inverter for speed control. Actual speed depends on material and profile type.
Siemens PLC and touch screen, Yaskawa inverter, Omron/Koyo encoder, NSK bearings. All CE certified. Supports automatic and manual modes. English and Chinese interface.
42CrMo (4140) steel, hard chrome plated. Runout: ≤±0.03 mm. Shafts: χάλυβας 40Cr, Ø75 mm, HB220–260. Sizing rollers at key stations for shape control.
24 μήνες from installation. Covers mechanical and hydraulic parts. Excludes electrical components and damage from misuse. Based on single-shift operation.
90 working days after deposit. Overseas installation available (5–10 days on-site: setup, calibration, testing, training). Payment: 30% deposit + 70% before shipment, FOB Shanghai.
Σύναψη
A BELI double layer roll forming machine is a smart investment when you need to produce two different profiles — without buying two machines, without doubling your floor space, and without spending hours on roll changes.
Here is what you get with BELI:
- ✅ 2 profiles on 1 machine — switch in under 5 minutes via Siemens PLC
- ✅ Built to last — 42CrMo chromed rollers, NSK bearings, Cr12Mov cutting blades
- ✅ Global brands — Siemens PLC, Yaskawa inverter, Omron/Koyo encoder
- ✅ Tested before shipping — 48-hour non-stop factory run test
- ✅ 24μηνη εγγύηση — double the standard Chinese 12-month warranty
- ✅ Full support — custom profile design, overseas installation, operator training, spare parts kit
- ✅ Fair price — from USD 35,000 FOB Shanghai (30–40% less than two single machines)
Not sure which profile combination suits your market? Contact our sales team with your profile drawings or reference samples. We will recommend the best configuration for your needs — at no extra cost.
📞 Get a free quote: enquiry@belirollforming.com | WhatsApp: +8618616927760
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