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Scarfing Units and Torch Cutting Machine (TCM) Nozzles for Steel Mills

Oxy-Fuel Scarfing Units and Torch Scarfing Nozzles for Continuous Casting Lines

LPR Global specializes in developing, engineering, retrofitting, and manufacturing scarfing units, and torch cutting machine (TCM) nozzles or tips for the continuous casting lines of bloom, billet and slab production. Our scarfing units and TCM nozzles, manufactured in our ISO50001 and ISO9001-certified facility in Busan, South Korea, are made with forged Korean materials and high precision manufacturing standard. Compared to our competitors who use cast materials, our products are made with forged materials from Korean mills, designed and manufactured to minimize scraps and fuel consumption.

With 25 patents in design and manufacturing of scarfing units and torch cutting machine nozzles, we have been providing custom solutions for scarfing units and cutting tips to the global steel mills.

We can make replacement of your current scarfing units and torch cutting machine tips based on extensive in-house R&D capabilities, reverse engineering and retrofitting experiences.

Scarfing Units and Torch Cutting Machine Nozzles for Steel Mills

Oxy-Fuel Scarfing Unit and Hand-Scarfing Nozzles

Scarfing Unit, Flame Scarfing Unit, Nozzles for Hand-Scarfing

Our scarfing units are used to remove surface defects such as inclusions, pitting, cracks, and scale from steel slabs, billets, blooms and ingots during thermochemical oxy-fuel scarfing process. We offer solutions for scarfing machines as well as manifolds, edge manifolds and vertical slides. We use forged material from Korean mills, ensuring longer lifespan of the product compared to competitor products.

Preheating step takes about 50 seconds for the optimal temperature to perform uniform scarfing while the cutting speed of our scarfing unit for the slab is 11 meter per min. Our scarfing units and hard-scarfing nozzles allow for precise control and adjustment of scarfing depth during operations.

We choose forged copper and manganese as the headblock material for the scarfing unit for its superior oxygen combustion and fuel efficiency. We use copper chromium zirconium alloy (C18150) as the upper block, lower block and shoe block material due to its advantages in creep resistance at high operating temperatures.

Removing surface defects from steel slabs, billets and blooms by using thermochemical oxy-fuel process is based on our good understanding of the material mechanical and thermal properties, fuel flow rate and two decades of steel mill operational experience.

Scarfing Unit

Hand Scarfing Nozzle/ Torch Scarfing Nozzle

Scarfing Unit Model Examples

CM-58	CM -69	CM-90	CM-98	CM-98 (EDGE)


Components:	Components:	Components:	Components:	Components:
Head Block	Head Block	Head Block	Head Block	Head Block
Upper Block	Upper Block	Upper Block	Upper Block	Upper Block
Oxy Block	Lower Block	Base Block	Base Block	Base Block
Lower Block	Shoe Block	Lower Block	Lower Block	Lower Block
Shoe Block		Shoe Block	Shoe Block	Shoe Block

Torch Cutting Machine Divergent Cutting Tips

Oxy-Fuel Torch Cutting Machine Cutting Tips for Continuous Casting Lines

LPR Global’s torch cutting machine (TCM) tips are designed to optimize the cutting process in oxy-fuel cutting process for continuous casting lines, specifically for cutting slabs, billets, blooms, ingots, beam blanks and scraps. Designed to withstand extreme temperatures, high pressure, and corrosive conditions, TCM nozzles by LPR Global are optimized for cutting torch in steel casting, rolling, and other critical processes.

Our TCM nozzles reduces cutting kerf, improves cutting speed and reduce material consumption, all while ensuring consistent cut quality in the cut surface.

With extensive in-house machining capabilities, we produce high-grade tellurium copper TCM nozzles with smooth and accurate gas passages which allow precise control of gas shape for the oxy-fuel cutting process.

High-speed divergent bore-type nozzles are available in multiple models with a cutting thickness range from 50mm to 400 mm, and a minimal cutting kerf of 5mm to 7mm. Comparing to competitors, LPR Global’s TCM nozzles result in 2mm to 3mm reduction in material loss, achieving significant cost savings for steel mills.

Specifications	SDN-25KS	SDN-26F	SDN-30F	SDN-40F	SDN-300R	SDN-500	SDN-CU-2012#3	SDN-300N-PM	SDN-400N-PM
Product Photos
Materials	Tellurium Copper (C14500)	Tellurium Copper (C14500)	Tellurium Copper (C14500)	Tellurium Copper (C14500)	Tellurium Copper (C14500)	Tellurium Copper (C14500)	Tellurium Copper (C14500)	Tellurium Copper (C14500)	Tellurium Copper (C14500)
Weight	0.158 kg	0.157 kg	0.185 kg	0.185 kg	0.159 kg	0.183 kg	0.44 kg	0.3 kg	0.3 kg
A. Length	32 mm	30 mm	35.2 mm	35.2 mm	30 mm	32 mm	78.6 mm	80 mm	80 mm
B. High Pressure Oxygen Diameter	⌀2.5	⌀2.6	⌀3.0	⌀4.0	⌀2.5	⌀3.5	⌀4.2	⌀3.25	⌀3.65
C. Screw	M 32 X P2	M 30 X P2	M 30 X P2	M 30 X P2	M 30 X P2	M 32 X P2	M 40 X P2	-	-
D. Diameter	36 mm	32 mm	32 mm	32 mm	32 mm	36 mm	41 mm	32 mm	32 mm
Maximum Operation Temp	1,000 - 1,300 °C	1,000 - 1,300 °C	1,000 - 1,300 °C	1,000 - 1,300 °C	1,000 - 1,300 °C	1,000 - 1,300 °C	1,000 - 1,300 °C	1,000 - 1,300 °C	1,000 - 1,300 °C
Cut Thickness	50 - 400 mm	50 - 400 mm	50 - 500 mm	50 - 500 mm	50 - 300 mm	50 - 500 mm	200 - 500 mm	50 - 300 mm	50 - 400 mm
Nozzle - Slab	80 - 120 mm	80 - 120 mm	80 - 120 mm	80 - 120 mm	80 - 120 mm	80 - 120 mm	80 - 120 mm	80 - 120 mm	80 - 120 mm
Nozzle - Billet	120 - 150 mm	120 - 150 mm	120 - 150 mm	120 - 150 mm	120 - 150 mm	120 - 150 mm	120 - 150 mm	120 - 150 mm	120 - 150 mm
Low Pressure Gas (LPG) (Nm/h)	1.5 bar	1.5 bar	1.5 bar	1.5 bar	1.5 bar	1.5 bar	1.5 bar	1.5 bar	1.5 bar
Low Pressure Oxygen (Nm/h)	2.5 - 3 bar	2.5 - 3 bar	2.5 - 3 bar	2.5 - 3 bar	2.5 - 3 bar	2.5 - 3 bar	2.5 - 3 bar	2.5 - 3 bar	2.5 - 3 bar
High Pressure Oxygen (Nm/h)	10 - 15 bar	10 - 15 bar	10 - 15 bar	10 - 15 bar	10 - 15 bar	10 - 15 bar	10 - 15 bar	10 - 15 bar	10 - 15 bar
Cut Loss Width	5 - 7 mm	5 - 7 mm	5 - 7 mm	5 - 7 mm	5 - 7 mm	5 - 7 mm	5 - 7 mm	5 - 7 mm	5 - 7 mm
Life Span - Slab	10 - 20 Days	10 - 20 Days	10 - 20 Days	10 - 20 Days	10 - 20 Days	10 - 20 Days	10 - 20 Days	10 - 20 Days	10 - 20 Days
Application	Billet	Slab	Slab, B/B	Billet, B/B	Billet	Billet	Scrap	Slab	Billet
Interoperability	ALBA	GEGA	GEGA	GEGA	ALBA	ALBA	-	FRAMAG	FRAMAG

Patented Scarfing Unit and Hand-Scarfing Nozzle, TCM Nozzle Designs

No.	Item	Details
1	Inset Tip	Improved existing nozzle design from 4 holes to 6 holes. During cutting, nozzle holes are prone to be clogged by flying debris. This design prevents clogging, there by increasing cutting precision and ensuring longer torch cutting machine (TCM) nozzle life span.
2	Inset Tip	With 8 holes Defensive design for odd number addition design
3	Head cover, Head Dummy	A manifold cover device designed to prevent sparks from being generated at the scarfing nozzle and contamination of flying debris in the part where the slab does not pass through on a multiple-piece scarfing workbench/ machine.
4	Scarfing Unit	Reverse scarfing unit design to prevent skids from falling off. Skid is arranged in the opposite direction to the slab movement.
5	Scarfing Unit	Reverse scarfing unit design to prevent skids from falling off. Skid arranged in the opposite direction to the slab movement.
6	Insert Tip	I-shaped hole design. This design prevents sparks from occurring during the scarfing process.
7	Hand Scarfing Nozzle	Hand scarfing nozzle with 18 exiting holes design.
8	Hand Scarfing Nozzle	Hand scarfing nozzle with 18 exiting holes design.