Precision Laser Cutting Services for OEM Manufacturing

In an OEM sheet-metal environment, the true value of laser cutting has never been simply “what materials can be cut.”
Its real value lies in consistent, scalable, long-term production that reliably supports the entire supply chain.

That is why SR MFG focuses on industrial-grade consistency, automation, and repeatable processes rather than chasing the extreme limits of individual machines.

We operate 3kW–5kW automated fiber and CO₂ laser cutting technology, capable of delivering stable cutting speeds, fast piercing, and clean edge quality across a wide range of metals.
With automated loading and unloading, our lines support 24/7 continuous production, significantly reducing labor dependency and increasing overall throughput and schedule reliability.

With these three machines, SR MFG can support the full spectrum of laser-cutting needs—from ultrathin sheets to heavy plates, from high-reflective metals to hybrid-material components.

Whether you require rapid prototypes or stable, large-volume supply, we deliver consistent, high-precision, manufacturing-grade laser cutting you can rely on.

Material: 6 mm carbon steel · Production: continuous 24-hour, 3-shift operation

Total daily capacity: over 9,000 thin-sheet parts/day, enabling stable, high-frequency, large-volume manufacturing and delivery.

Note: Actual production will be affected by the following factors:

1. Part complexity (small holes or sharp-angle designs in metal parts may reduce production speed by 30%–50%);

2. Material changeover frequency (automatic loading and unloading can reduce auxiliary time by 20%);

3. Machine warm-up and maintenance, such as nitrogen refilling (reserve 10% of the time).

These are real production-line variables in factories, and SR MFG has minimized fluctuations as much as possible through standardized process management.

In the production of sheet-metal components such as industrial cabinets, electrical enclosures, and battery housings, fiber lasers are regarded as the “main force” of manufacturing. The key reason is that when cutting high-reflective materials (such as aluminum and copper), thin sheets, or structural parts, fiber lasers provide stable absorption rates and excellent edge control.

Our laser equipment features high power levels (primarily 3–5 kW) and is integrated with automated loading/unloading and racking systems. This combination enables our production line to maintain consistent cutting speed, repeatable trajectory accuracy, and beam density—even during nighttime or low-personnel operation. At SR MFG, we believe that “power does not determine everything; true yield improvement comes from stability.”

Although most of the sheet-metal industry has transitioned to fiber laser cutting, CO₂ laser systems are still required in certain scenarios—such as when material thickness varies significantly or when non-metallic sandwich structures demand smooth edge transitions. This capability allows us to handle mixed-material prototypes without requiring customers to redesign due to special material characteristics.

By having both fiber and CO₂ laser cutting equipment, we can cover the vast majority of sheet-metal applications without forcing customers to repeatedly adjust their designs due to equipment limitations.

Our equipment supports sheet metal cutting service for large-format laser cutting (commonly 1500 × 3000 mm sheets) and is equipped with automated loading/unloading systems to perform a full series of operations, such as picking, flipping, and positioning assistance.

This coordinated workflow is critical for high-volume laser-cut parts. It reduces manual positioning errors, improves cutting path consistency, and ensures that identical components maintain a unified quality baseline across different shifts. Essentially, this elevates laser cutting from a “single-machine capability” to a “systematic, process-driven capability.”

During discussions with customers, we’ve found that what most customers care about is not the nominal accuracy of the equipment, but rather the ability to produce stable, consistent quality in mass production.

From our experience, customers care most about “prototype speed + mass-production stability.” These two factors best represent a factory’s capability as a laser-cutting OEM.

Carbon Steel and Low Alloy Steel

Stainless Steel

Aluminum and Aluminum Alloys

Other Special Materials

Material Compatibility Notes

To ensure consistent metal laser cutting performance, edge quality, and stable mass production, we have developed a simple compatibility guide based on the thickness ranges of different materials, ensuring precise cutting results and high-quality manufacturing. All parameters are based on actual testing results and engineering experience from SR MFG’s current 3–5 kW fiber / CO₂ laser cutting equipment.

• Prefer material specifications within the batch-production thickness range;

• If the design includes small holes, sharp corners, long narrow slots, or other high-difficulty features, please communicate in advance;

• When the material approaches the maximum thickness limit, edge quality and processing speed may be reduced;

• Different materials require different gases and process windows;

• If you require bending, welding, painting, or other post-processing services, please provide a complete set of drawings so we can conduct a Design for Manufacturability (DFM) evaluation and ensure the process flows smoothly.

SR MFG can provide stable, mass-production-ready laser cutting processes for all mainstream metal materials. If you are not sure whether a material is suitable, feel free to communicate with our factory team, and we will provide the best recommendation for your product.

We consider laser cutting as a manufacturing process that can be adjusted, but must remain under control. While cutting parameters may vary, all variations are carefully managed to ensure consistent cutting quality across all production runs.

High-power fiber laser cutting machines support automatic adjustment of focal position, energy density, and speed curves. The SR MFG factory team establishes a “process window” according to material type, thickness, and contour so that the laser cutting equipment performs intelligent adjustments within this range.

In actual practice, our engineers establish bound parameters for different scenarios, such as:

• 1.2 mm 304 stainless steel: set focal offset to control heat input

• 2.0 mm aluminum plate: use higher travel speed to reduce dross

• 3.0 mm carbon steel: apply section-by-section deceleration for sharp-corner areas

These parameters help us build a stable production line.

Our assist-gas strategy is designed around the functional requirements of the materials.

• Nitrogen (N₂): Ideal for stainless steel and aluminum laser cutting. It produces cleaner edges and smaller Heat-Affected Zones (HAZ), making it perfect for parts that require further processing, such as cabinet door panels, battery housings, and items needing powder coating or electrophoresis.

• Oxygen (O₂): More efficient for carbon steel cutting. Utilizes oxidation heat to improve piercing speed, suitable for thick plates and load-bearing parts.

Kerf width determines whether metal structural parts can align during welding and whether root cleaning is needed. Through stabilizing the laser spot, compensating for speed-segment differences, and using micro-joint strategies at critical locations, we keep kerf width for most parts within 0.08–0.15 mm (actual values depend on material).

For OEM customers, the benefits include more accurate bending angles, consistent welding alignment, and controllable assembly gaps, ensuring that every component fits perfectly during assembly.

To ensure each batch meets the same high standard, SR MFG breaks laser cutting quality control into multiple stages, with traceable data points at each phase, ensuring consistent laser cutting precision and repeatable quality. This ensures that every laser-cut part, from the first to the last, remains consistent.

Executed at the start of every new order or new material batch, covering:

• Key dimensions: datum holes, locating edges, assembly surfaces

• Edge quality: dross, burrs, perpendicularity

• Plate-thickness consistency: matching the process window

The goal of FAI is to confirm whether the parameter combination under the current material and equipment state meets mass-production requirements.

Periodic sampling during production, focusing on:

• Whether dimensional trends show deviation

• Whether edges show signs of local overheating

• Whether nozzle and lens conditions affect edge quality

Inspection frequency is defined by part complexity and batch size, typically every 10–50 pieces.

Key checks include:

• Whether the flat-pattern dimensions satisfy bending requirements

• Whether welding hole positions are within assembly baselines

• Flatness and diagonal consistency for panel-type parts

The purpose of final QC is not to pick out good parts, but to verify the stability of the entire batch’s process.

For key characteristic dimensions such as mounting holes and locating slots, we record data and conduct Cp/Cpk analysis.

SPC is used to:

• Determine whether dimensions show systematic drift

• Schedule preventive maintenance for equipment

• Adjust the process-parameter library

The data-driven process makes accuracy predictable rather than dependent on experience.

Accuracy is not only ensured during cutting but also maintained during packaging.

To prevent micro-deformation or scratching during transportation, we:

• Design partitions or metal frames for thin sheets and large parts

• Apply protective film to surfaces prone to wear

• Define stacking direction and quantity limits for finished goods

• Perform random unpacking checks for each batch

This ensures that the parts received by customers can directly enter bending, welding, or final assembly without secondary processing.

The goal of this design guide is to ensure that structural parts possess a complete logical chain of “cuttable, bendable, weldable, and assemblable” before entering actual production. The core concept is: a small 1 mm adjustment during the design stage can often prevent costly rework in five subsequent manufacturing processes, saving both time and costs in mass production.

The following guidelines are summarized based on multiple material types and mass-production scenarios and can be directly applied to design optimization for industrial equipment, cabinets, electrical structural components, battery trays, and bracket-type parts.

Read the full Laser Cutting Design Guide

Before each CAD file enters production, the SR MFG engineering team conducts a DFM review, rather than only checking whether dimensions are complete and compliant.
During the review process, we focus on the following types of structures:

1. Checking the relationship between small hole size and sheet thickness.

2. Suggestions for bridging positions and structural stability.

3. Spacing, rib structures, stiffeners, and strength assessment.

4. Path-optimization suggestions for openings such as cooling slots and ventilation holes (mainly for cabinets, server panels, and electrical enclosures containing large numbers of vents).

5. Cutting-transition recommendations for assembly / bending / welding.

DFM review is not a one-time action, but a support system throughout the entire project.
When we receive CAD files, we perform the following tasks to ensure that the product does not encounter excessive unexpected issues during mass production.

1. CAD File Review

After receiving the CAD file, we check:

• Confirmation of thickness, material, and bending direction

• Functional surface identification (assembly surfaces, datum holes, sealing grooves, etc.)

• Manufacturability assessment of the structure (sharp corners, narrow slots, inner-corner radii)

• Dual confirmation through automatic unfolding and manual comparison

The goal of the review is to ensure that the drawing already conforms to manufacturable logic before entering production, rather than making emergency corrections right before cutting.

2. Prototype Verification

During the prototype stage, all DFM recommendations are verified again, producing a “process reference part” suitable for batch manufacturing.

• Compare key dimensions using a CNC measuring instrument

• Check whether bending angles meet expectations

• Verify whether the welded structure meets assembly requirements

• Record surface quality and edge quality

3. Process Risk Identification

During OEM mass production of products, identifying potential risks in advance and reducing costs is extremely important.
We establish a risk matrix according to part type, including:

• Warping risk caused by high heat input

• Structural instability risk caused by large-area slotting

• Process-compensation variation caused by differences between material batches

• Magnification of accumulated dimensional errors across multi-process chains

Before mass production, our engineering team provides corresponding solutions, such as:

• Re-arranging toolpaths

• Fixture-assisted positioning

• Reserving bending compensation

• Optimizing local thickness or adding transition zones

This type of pre-risk control can significantly reduce potential issues before the product enters mass production, ensuring a more stable and controllable production process, and reducing additional costs caused by rework or process abnormalities.