HALANSM® HLN-DE-D28H15M11 DE-type double-layer high-speed nozzle, D28 H15 M11, calibers D1.0E-D1.8E. For thick-plate oxygen cutting on RayTools WSX BOCI heads.
HLN-DE-D28H15M11
HALANSM®
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Technical Specifications
Product Description
Catalogue
Part Type
Laser Cutting Nozzle (E-Type / Double Layer)
Outer Diameter (OD)
28 mm
Height (H)
15 mm
Mounting Thread
M11 x 0.75
Bore Caliber
D1.0E / D1.2E / D1.4E / D1.6E / D1.8E
Default Caliber Shown
D1.8E (1.8 mm)
Material
High-Purity Copper, Hard Chrome Plated
Assist Gas
Oxygen (O2)
Applications
High-power oxygen cutting of thick carbon steel
HALANSM®
SILVER CUTTING
HLN-DE-D28H15M11
HALANSM® DE High-Speed Nozzle D28 H15 M11
E-Type Double-Layer Copper Nozzle for Thick-Plate High-Speed Fiber Laser Cutting
HALANSM® HLN-DE-D28H15M11 is an aftermarket DE-type (E-type) double-layer high-speed laser cutting nozzle sized OD 28 mm x H 15 mm x thread M11 x 0.75, built for RayTools, WSX, BOCI, Precitec, OSPRI and compatible M11-interface fiber laser cutting heads to deliver stable, high-speed oxygen cutting on thick carbon steel plates.
Product Overview
The HLN-DE-D28H15M11 is a precision-machined copper nozzle that mounts at the front of the cutting head and forms the final assist-gas channel before the workpiece. Its stepped internal cone and E-type dual-wall structure accelerate and stabilize the oxygen jet, driving the exothermic reaction and ejecting molten slag cleanly through deep kerfs.
Mounted against the ceramic ring, the nozzle also completes the capacitive sensing circuit. Concentricity, bore finish and thread accuracy directly affect standoff control, edge quality and protection of the focus optics. The HLN-DE-D28H15M11 is engineered for high-power, thick-plate oxygen cutting where gas volume and jet stability are the limiting factors.
HALANSM® manufactures this nozzle as an aftermarket replacement to the published D28 H15 M11 x 0.75 E-type form factor. Every batch is visually inspected and packaged in sealed anti-oxidation packaging to preserve the copper surface and bore finish.
Key Advantages
E-Type Enhanced Gas Flow
The stepped internal cone expands the three inner-core exit holes beyond the standard D-type. This sustains higher oxygen volume at low pressure, keeping the jet momentum deep in the kerf on thick carbon steel.
Double-Layer Thermal Protection
The dual-wall structure separates the high-velocity inner gas path from the outer cooling wall. The outer layer shields the laser head optics from heat, plasma flash and heavy spatter during sustained high-power runs.
High-Purity Copper with Chrome Plating
Machined from high-purity copper for excellent electrical and thermal conductivity, then hard-chrome plated. The plating improves surface hardness, wear resistance and corrosion protection while maintaining a smooth inner wall.
High Concentricity for Stable Standoff
Precision-bored and CNC-finished to tight concentricity tolerances. Stable standoff control reduces beam drift, edge oxidation and the risk of nozzle collision with the plate.
Specifications
Part Type: Laser Cutting Nozzle (E-Type / Double Layer)
Application: High-power oxygen cutting of thick carbon steel
Assist Gas: Oxygen (O2)
Nozzle Selection by Caliber
Within the E-type family, caliber scales with plate thickness. The values below are the standard E-type range; confirm exact caliber with your supplier before ordering.
D1.8E: Deep kerfs on thick carbon steel, high-power systems
Rule of thumb: 6 kW and above oxygen cutting requires E-type geometry rather than standard D-type, because the larger internal bore sustains the oxygen volume needed in deep kerfs. For plates beyond 20 mm, SP-type nozzles may be the primary choice on 12 kW and above systems.
Compatible Equipment and Application
Compatible with aftermarket replacement nozzles for the following head families using the D28 H15 M11 x 0.75 interface. HALANSM® is an independent aftermarket brand; no OEM authorization is claimed.
RayTools BM / BS series, including BM110 and BT240 (M11 ceramic ring interface)
WSX NC30, NC63, KC15 and compatible WSX cutting heads
BOCI BLT series (BLT421, BLT441, BLT461, BLT481, BLT641, BLT661 and variants)
Precitec ProCutter, LightCutter and HP 1.5 inch-compatible heads with M11 mount
OSPRI / OSPRI 305 series and compatible heads
Han's Laser, Bodor, Empower and other M11-interface heads. Provide your head model and original part number for fitment check.
Installation and Handling
1. Power off the laser source and release all assist-gas pressure from the cutting head.
2. Unscrew the worn nozzle and remove it from the ceramic ring mounting seat.
3. Clean the ceramic ring, sealing O-ring and mounting seat with a dry lint-free cloth. Inspect for cracks or deformation.
4. Thread the new HLN-DE-D28H15M11 by hand to confirm clean M11 x 0.75 engagement, then tighten with appropriate finger force. Do not over-tighten.
5. Recalibrate the capacitance sensing and perform a low-power test cut to verify standoff and beam centering.
Storage: keep nozzles in sealed anti-oxidation packaging in a dry environment. Handle only with clean gloves to avoid contaminating the bore and ceramic contact surfaces.
Frequently Asked Questions
What laser heads fit the HALANSM® HLN-DE-D28H15M11 nozzle?
It fits RayTools BM and BS, WSX NC and KC, BOCI BLT, Precitec-compatible and OSPRI 305 heads using a D28 H15 M11 x 0.75 interface. This aftermarket nozzle is manufactured to the published form factor, not as an OEM part. Provide your head model and original part number for a confirmed fitment check before ordering.
Is the HALANSM® HLN-DE-D28H15M11 an original RayTools or WSX nozzle?
No. It is an independent aftermarket replacement manufactured to the same D28 H15 M11 x 0.75 form factor for use on compatible heads. HALANSM® does not claim any OEM authorization or endorsement. RayTools, WSX, BOCI and Precitec are third-party trademarks used only for fitment reference.
What is the difference between DE and SP nozzles?
DE (E-type) nozzles use an enhanced stepped-cone internal geometry for high-power thick-plate oxygen cutting. SP nozzles are optimized for ultra-thick plate above 20 mm on 12 kW and above systems. Select by plate thickness and laser power.
Which caliber should I choose for thick carbon steel?
Use D1.0E to D1.2E for medium thickness, D1.4E to D1.6E for thicker plates, and D1.8E for deep kerfs on high-power machines. Pair the nozzle with oxygen assist gas for carbon steel. Confirm exact specs with us for your material grade, thickness and laser power combination.
Why must I recalibrate capacitance after nozzle replacement?
The nozzle completes the capacitive standoff sensing circuit, and a new bore and thread seat changes the reference point. Recalibrate after every replacement to prevent incorrect standoff height, edge oxidation and collision risk. This step applies to all M11-interface heads and takes only a few minutes.
How do I know when to replace the nozzle?
Replace it when the bore shows deformation or slag buildup, when cutting speed drops, when bottom-edge dross increases, or when the capacitive calibration drifts repeatedly. Inspect the nozzle after every shift under heavy spatter conditions, and keep spares on hand to avoid unplanned downtime during production runs.
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