Channel Letter Bending Machine
High-precision automated CNC channel letter bending machine for stainless steel, iron, and aluminum coils up to 130 mm return height and 1.2 mm gauge. Features alternating double-blade servo bending, OMRON closed-loop photoelectric sensor angle-grinder slotting, and continuous roller feed yielding ±0.1 mm precision.
- check_circle Max Letter Return Height of 130 mm: Handles commercial signage depth requirements from mini letters up to 130 mm.
- check_circle Strip Thickness up to 1.2 mm: Reliably slots and bends stainless steel, galvanized sheet, iron, and extruded aluminum.
- check_circle Double-Blade Alternating Bending: Servo-driven alternating blades prevent collision on intricate, tight-radius letters.
- check_circle OMRON Closed-Loop Photoelectric Slotting: High-sensitivity real-time sensor ensures uniform slot depth on every notch.
- check_circle Tight 10 mm Minimum Bend Radius: Flawlessly forms sharp corners, serif fonts, and complex multi-node cursive letters.
- check_circle Continuous Traction Feeding: Rotary length encoder and closed-loop control eliminate coil slippage with ±0.1 mm accuracy.
- check_circle Material Spring-Back Compensation Software: Built-in ductility algorithms adjust bend angles for different alloys.
Industrial Applications
Target Production & Material Use CasesAutomated bending and slotting of mirror-polished and brushed 304/316 stainless steel returns for high-end retail logos.
Precision forming of aluminum profile returns designed for liquid acrylic and push-through face illuminated letters.
Bending deep 130 mm returns in heavy 1.2 mm galvanized sheet and aluminum coils for corporate high-rise signage.
Forming tight-radius, leak-proof metal contours with consistent slotting that seals perfectly against resin cast leakage.
Producing intricate brand emblems, crests, and stylized decorative metal shapes for indoor and outdoor branding.
Key Operational Advantages
Engineering ROI & ReliabilityAutomates the tedious manual processes of grooving, snipping, and pliers bending, slashing letter assembly from hours to minutes.
Precision encoder tracking ensures bent metal returns match laser-cut acrylic faces and CNC backings on the first fit.
Angle grinder slotter utilizes economical abrasive cutting discs rather than expensive custom carbide bits, saving operational costs.
Adjustable-pressure feed rollers and smooth servo-controlled bending arcs preserve protective film and mirror finishes.
Channel Letter Bending Machine — Industrial Summary
Automated CNC Channel Letter Bending Machine for Stainless Steel & Aluminum Returns
The XQL-130 Channel Letter Bending Machine is an automated industrial CNC metal forming system engineered specifically for commercial illuminated signage makers, metal craft fabricators, and LED letter manufacturers. Capable of handling strip return heights up to 130 mm and sheet thicknesses up to 1.2 mm, this horizontal fabrication machine automates the three most critical, labor-intensive phases of 3D channel letter construction: high-speed roller feeding, microscopic-depth slotting (notching), and dual-blade alternating radius bending in a continuous synchronized workflow.
At the mechanical core is an alternating double-blade bending mechanism driven by a high-torque closed-loop servo motor. Depending on the vector node contours (inside arc vs. outside arc), the machine automatically switches between the inside and outside bending blades, retracting the idle blade to prevent collision with tight finished letter corners. Slotting is performed by a dedicated angle-grinder spindle utilizing ultra-thin special cutting blades, guided by a closed-loop OMRON photoelectric sensor system that automatically monitors and compensates slot depth in real-time, eliminating tool-wear adjustments.
Advanced Mechanical, Slotting & Software Highlights:
- Double Blade Alternating Bending System: Dynamically switches bending blades according to the positive and negative contours of the letter stroke, easily forming acute angles and tight radii down to 10 mm without tool collision.
- OMRON Photoelectric Closed-Loop Slotting Device: Automatically detects strip positioning and adjusts slotting depth dynamically. High-sensitivity sensor placement prevents dust and spark interference for perfectly consistent notch depths.
- Continuous Roller Feed Device with Length Encoder: High-traction passive and active rollers are pneumatically adjusted to grip stainless steel, copper, or aluminum coils without surface scratching, achieving ±0.1 mm file matching accuracy.
- Tianjin Yuan Proprietary Signage Software: Developed over decades of sign-industry engineering feedback. Features built-in spring-back angle compensation and ductility tables for diverse metal alloys.
- Ultra-Thin Kerf Cutting Consumables: Slotting device uses ultra-thin stainless steel abrasive discs, drastically lowering tooling consumables costs compared to expensive solid carbide milling cutters.
- Seamless Vector File Integration: Directly accepts DXF, AI, and PLT vector files generated by CorelDraw, Adobe Illustrator, and AutoCAD with zero pre-processing overhead.
Technical Specifications & Machine Architecture
| Specification | Parameter / Value |
|---|---|
| Machine Model | XQL-130 Industrial Channel Letter Bender |
| Automation Grade | Fully Automated CNC (Computer Controlled) |
| Machine Layout & Structure | Horizontal Bed Configuration with Coil Unwinder |
| Brand & Manufacturer | XQL / Daksh CAD CAM |
| Maximum Letter Return Height | 130 mm (5.1 Inches) |
| Minimum Letter Return Height | 20 mm (0.78 Inches) |
| Maximum Material Thickness | Up to 1.2 mm (Stainless Steel & Iron), 1.5 mm (Aluminum) |
| Minimum Material Thickness | 0.4 mm Coil Stock |
| Compatible Material Types | Stainless Steel, Galvanized Sheet, Iron Strip, Aluminum Coil, Aluminum Profile |
| Bending System Technology | Dual-Blade Alternating Servo Bending System |
| Minimum Bending Radius | 10 mm (0.39 Inches) |
| Slotting Mechanism | High-Speed Angle Grinder Device with OMRON Sensor |
| Slotting Sensor Technology | OMRON High-Sensitivity Photoelectric Closed-Loop Sensor |
| Slot Angle Range | 45° to 135° Adjustable Notching |
| Media Feed Mechanism | Continuous Pressure-Regulated Feed Rollers with Length Encoder |
| File Matching Repeat Accuracy | ±0.1 mm |
| Supported File Formats | DXF, PLT, AI (Vector Graphic Files) |
| Electrical Power Supply | AC 220V ±10%, 50/60 Hz, Single Phase |
| Total Machine Power Rating | 2.0 kW Peak Power |
| Control Software Platform | Tianjin Yuan Industrial Channel Letter Controller |
| Required Air Supply Pressure | 0.6 – 0.8 MPa Compressed Clean Air |
| Minimum Order Quantity | 1 Unit |
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