Description
Umprotech Coil-Fed Fiber Laser – 48 in × 0.135 in, 3 kW, 5 t Decoiler
Compact coil-fed fiber laser blanking line engineered for high-throughput sheet blanking and part production directly from 48" coil. The Umprotech 48" × 0.135" line integrates coil handling, precision leveling, servo feeding, and a 3 kW fiber laser into a single automated system sized for job-shop and mid-volume OEM use.
Designed for US job shops, OEMs, and fabrication cells that process 36–48" coils in the ≈0.045–0.135" range, this line converts coil tonnage into consistent blanks with reduced manual handling, better material yield, and repeatable cycle times on recurring part families.
Maximum cutting / coil width: 48 in · Max thickness (rating): up to 0.135 in carbon steel* · Laser power: 3 kW fiber · Decoiler capacity: 5 t
*0.135" rating applies to low-carbon steel within a specified yield-strength and flatness range. Higher-strength, stainless, galvanized, and other alloys require derating and application-specific validation with Umprotech applications engineering.
Key advantages for US buyers
- Coil-to-part automation in a compact footprint: 48" line width and 5 t decoiler provide true coil-fed automation without the floor space or coil mass of large 60–72" / 10–15 t systems.
- 48" width sweet spot: Matches common 36–48" coil supply for HVAC, cabinet, appliance, and general fabrication, supporting single-row panels or multiple rows of smaller parts with efficient nesting.
- 0.135" carbon steel capability with 3 kW: Covers a practical range of light- to medium-gauge parts; at thinner thicknesses the process becomes motion/pierce-limited, while at 0.135" it is managed carefully via parameters and assist gas.
- Integrated straightener + servo feeder: Precision multi-roll leveling and encoder-based feed ensure flat, repeatably positioned strip, which is critical for bend consistency and weld-up at these gauges.
- High-mix friendly control: HMI with nesting and CAD import supports frequent program changes, recurring part families, and contract manufacturing where part mix changes shift to shift.
- Scalable automation path: Start with a base coil-to-sheet configuration and add automatic stacking, zone-based sorting, inline marking, and fume extraction as volumes and product families mature.
Key technical specifications
Maximum cutting / coil width: 48 in
Processes coil stock up to 48" wide, aligning with standard service-center coil sizes. Supports large panels, door skins, and multi-row nests of smaller parts without oversized machine footprint or coil-handling requirements.
Thickness rating (carbon steel): up to 0.135 in (≈3.4 mm)
Typical working window covers ≈0.045–0.135" material. Actual speeds and quality depend on steel grade, coating, flatness, and edge requirements; thicker and harder materials require conservative parameter sets and validation cuts.
Laser power: 3 kW fiber laser
Balanced power level for job-shop duty. Provides high speed on thinner gauges and adequate, parameter-managed performance on 0.135" carbon steel within the rated window. Supports process recipes for O₂, N₂, and (where supported) air cutting.
Laser cutting head: Autofocus fiber head with collision protection
Programmable focus position, pierce heights, and cut parameters. Collision protection / breakaway reduces risk of damage if strip movement, skeleton, or up-forms contact the head.
Decoiler capacity: up to 5 t
Sized for typical 48" coils and job-shop scale. Provides enough coil mass for extended runs, while keeping coil handling, coil car requirements, and structural demands manageable in mid-sized facilities.
Straightener / leveler: precision multi-roll leveler
Sized for ≈0.045–0.135" material. Reduces coil set, crossbow, and residual stress so that blanks exit the cutting cell flat enough for predictable bending and welding at these gauges. Exact roll count and diameter are configuration-dependent.
Servo feeder: closed-loop servo + encoder feedback
Controls strip indexing into the cutting zone with precise feed length control. Supports repeatable blank length tolerances and stable nest positioning over entire coil runs.
Material handling: coil handling + scrap removal
Typical line includes coil car (optional), decoiler with hold-down and brake, peeler, straightener, servo feeder, cutting cell, and conveyor-based scrap/skeleton removal. Scrap management is planned for coil-length continuous operation rather than per-sheet cycles.
Controls: HMI with nesting / CAD import
Unified interface for coil handling and laser cutting. Job queues, material libraries, and CAD (e.g. DXF) import reduce manual programming and support high-mix production with recurring nests and part families.
Extended line parameters (illustrative ranges)
The ranges below are typical values for a 48" × 0.135", 3 kW coil-fed fiber laser line and are provided for engineering discussion only. Final values must be taken from Umprotech GA drawings, electrical one-lines, and signed performance specifications for the configured system.
Coil thickness window (example): ≈ 0.045–0.135 in carbon steel
Below ≈0.045", the mechanical and process window becomes thin-gauge dominated and may favor a thin-sheet line; at ≈0.135", 3 kW operation is markedly power-limited and oriented toward structural and non-cosmetic workloads with tuned parameters.
Coil inner / outer diameter (example):
ID: ≈ 20–24" · OD: up to ≈ 60–72"
Exact range depends on decoiler mandrel design, brake system, and any coil car.
These values must be aligned with your service-center coil standards during specification.
Mechanical line speed (no cutting, example): on the order of ≈ 150–250 ft/min
Represents the upper limit of feeder and leveler mechanics. At 0.135", real cutting speeds will be significantly lower as the process is power-limited and quality-driven rather than mechanically constrained.
Feed length accuracy (example): on the order of ±0.003–0.010 in
Achievable over typical blank lengths when the line is properly installed, leveled, and tensioned. Exact tolerances depend on servo/encoder configuration and are documented at commissioning for each line serial number.
Laser positioning repeatability (example): ≈ ±0.001–0.003 in
Typical for modern 3 kW fiber motion systems using linear or rack-and-pinion drives. Exact numbers depend on drive design, feedback devices, frame stiffness, and calibration routines.
Assist gas options (typical): O₂, N₂, air (if enabled)
O₂ is frequently used at 0.135" for robust penetration and cut stability; N₂ is common where low oxidation and cosmetic edges are required and throughput targets permit; filtered air (if supported) can reduce per-part gas cost in selected edge-quality scenarios.
Fume extraction (example): zoned under-table extraction
Multiple extraction zones under the cutting table sequenced with head position. Filtration and ductwork are sized for expected particulate load on 0.045–0.135" duty cycles.
Note: These values support engineering/ROI conversations only. Binding performance, utility, and tolerance data must come from the signed Umprotech specification for your project.
Cutting performance & process window
With 3 kW at up to 0.135" carbon steel, the process transitions from motion-limited on thinner gauges to power-limited near the upper thickness boundary. Effective throughput is driven by a combination of cut parameters, assist gas choice, nest structure, and the reduction of non-cut time through coil-fed automation.
Simplified power / thickness relationship for continuous cutting:
Plaser ≈ q × t × v × wkerf × η
- Plaser – available laser power (3 kW nominal)
- q – specific energy per unit volume of the material
- t – thickness (up to 0.135")
- v – cutting speed along the path
- wkerf – kerf width
- η – overall process efficiency (optics, absorption, gas dynamics)
At 0.135", maintaining cut quality and stability may require reductions in v (cutting speed), adjustments in η via parameter tuning, and careful nozzle management. Umprotech provides parameter tables per material, thickness, and assist gas for this configuration.
Practical considerations at up to 0.135"
- Coil flatness and leveler setup are critical; thicker strip stores more residual energy and can up-form without proper leveling and tension control.
- For formed or welded parts, edge quality and HAZ at 0.135" must be validated with test blanks before standardizing cut parameters for production.
- Nest design should prioritize skeleton rigidity and part retention on heavier gauges to avoid strip motion during cutting, especially when common-line strategies are used.
- Pierce strategies, lead-ins, and micro-joints must be tuned for heavier material to prevent part movement or tip-up in the cutting zone.
Coil vs. sheet workflow impact
- Labor shifts from repetitive sheet loading/unloading to coil changes, pallet exchanges, and scheduled maintenance, improving ergonomics and reducing handling risk on heavier gauges.
- Repeating coil nests reduce partial-sheet remnants and standardize scrap handling through continuous skeleton evacuation.
- Combined with automatic stacking and sorting, the line approaches coil-in / palletized-blanks-out workflows for stable part families in the 48" width class.
Capabilities & typical applications
The Umprotech 48" × 0.135", 3 kW coil-fed line targets shops that want to convert 48" coil supply into consistent blanks for forming and welding, without stepping up to the size and cost of larger 60–72" / high-tonnage systems.
- Blanking for panels, enclosures, HVAC duct sections, and cabinet components from 48" coil.
- Structural brackets, frames, and weldments in light- to medium-gauge carbon steel.
- High-mix, repeat-part production for contract manufacturers using coil-based supply.
- Integration upstream of press brakes, panel benders, roll-form lines, and robotic weld cells.
- Prototype and short-run jobs where coil-fed nesting still provides yield and handling benefits.
Implementation & support for US shops
Umprotech partners with US job shops, OEMs, and contract fabricators to specify, install, and ramp coil-fed laser lines with minimal disruption to existing operations. Because coil-fed systems affect material supply, layout, and downstream processes, early technical engagement is essential.
- Pre-installation review: power, floor loading, access routes, coil storage and handling, safety zones, and integration with existing forming and welding equipment.
- Application engineering: part and coil review (width, thickness, grades, coatings), nesting strategies, and cycle-time estimates to support ROI and capacity planning.
- Commissioning & training: on-site installation, parameter tuning, and training for operators, programmers, and maintenance personnel on coil handling, safety, diagnostics, and preventive maintenance.
- Ongoing support: remote and on-site support, process optimization as part mix evolves, and assistance with integrating new part families or material grades into the line.
Next step: share your coil specifications (width, thickness range, ID/OD, grades) and representative part drawings or nests (DXF/STEP/PDF) with Umprotech. We will validate technical fit, estimate cycle times, and propose a configuration and layout aligned with your throughput, labor, and ROI objectives.
Engineering notes & technical FAQ
How should we interpret the 0.135" rating with a 3 kW laser?
The 0.135" maximum thickness is a nominal rating for carbon steel in this configuration. Practically:
- At 0.045–0.090", the process is often limited by motion dynamics and piercing, not power.
- Near 0.135", the process is power- and quality-limited; cut speed and gas strategy must be conservative, and edge/HAZ must be validated against forming and welding requirements.
- Higher-strength, HSLA, stainless, or heavy coatings at 0.135" may require derating of thickness or speed; these applications should always be supported by test cutting.
What information is needed to size and justify this 48" coil-fed line?
To configure and justify a 48" × 0.135", 3 kW line, Umprotech typically requests:
- Annual tonnage by thickness and grade on 36–48" coils.
- Representative part geometries, tolerances, and edge/cosmetic requirements.
- Current blanking methods (sheet-fed laser, turret, shear, outsourcing) and their cycle times / labor content.
- Throughput, labor, WIP, and lead-time targets for the new line.
- Layout constraints and integration requirements with forming, welding, and assembly operations.
When is a 48" × 0.135", 3 kW line the right choice?
This configuration is particularly attractive when:
- Most of your coil-fed work is within 36–48" width and ≈0.045–0.135" thickness, and 60–72" systems would be underutilized or too large for your facility.
- You want to move from manual sheet handling to coil-based blanking without stepping into the capital and footprint band of very large coil lines.
- Your downstream press brakes, weld cells, and assembly lines are often waiting on blanking capacity for medium-gauge parts from coil.
