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Application of Intelligent Ladle Slag Scraper (Skimming Tools) in steel mills and aluminum mills

The application of Intelligent ladle slag scraper (skimming tools) in steel mills and aluminum mills.

The intelligent ladle slag scraper is mainly used as a key equipment for the pretreatment of molten iron such as desulfurization, dephosphorization and desilization in steelmaking/aluminum smelting plants in order to improve steel quality and increase steel varieties. The equipment can pick up the slag with good fluidity and non-flowing flow in the molten pool, ladle or molten iron tank, so as to improve the pretreatment and metallurgical efficiency of iron and molten iron.
The equipment has four degrees of freedom: the whole machine rotates, the lifting frame rises/descends, the telescopic arm expands and contracts forward and backward, and the swing frame tilts up and down. Flexible action, high slag removal efficiency, large slag removal power and penetrating force, stable operation and convenient operation. It is mainly composed of mechanical and electronic control, which can be operated manually on site or remotely through 5G communication technology. The equipment is installed with protective plates close to the ladle, which can reduce the damage of high temperature to the equipment, and is safe and reliable.


El raspador inteligente de escoria de cuchara se utiliza principalmente como un equipo clave para el pretratamiento de hierro fundido, como desulfuración, desfosforación y desilización en plantas de fundición de acero / aluminio para mejorar la calidad del acero y aumentar las variedades de acero. El equipo puede recoger la escoria con buena fluidez y flujo sin flujo en el baño fundido, la cuchara o el tanque de hierro fundido, para mejorar el pretratamiento y la eficiencia metalúrgica del hierro y el hierro fundido.
El equipo tiene cuatro grados de libertad: toda la máquina gira, el bastidor de elevación sube/baja, el brazo telescópico se expande y se contrae hacia delante y hacia atrás, y el bastidor giratorio se inclina hacia arriba y hacia abajo. Acción flexible, alta eficiencia de eliminación de escoria, gran poder de eliminación de escoria y fuerza de penetración, operación estable y operación conveniente. Se compone principalmente de control mecánico y electrónico, que se puede operar manualmente en el sitio o de forma remota a través de la tecnología de comunicación 5G.
El equipo se instala con placas protectoras cerca de la cuchara, lo que puede reducir el daño de la alta temperatura al equipo, y es seguro y confiable.

Η έξυπνη ξύστρα σκωρίας κουτάλας χρησιμοποιείται κυρίως ως βασικός εξοπλισμός για την προεπεξεργασία του λιωμένου σιδήρου, όπως η αποθείωση, η αποφωσφορίωση και η αποσιλωμάτωση σε εγκαταστάσεις τήξης χάλυβα / αλουμινίου, προκειμένου να βελτιωθεί η ποιότητα του χάλυβα και να αυξηθούν οι ποικιλίες χάλυβα. Ο εξοπλισμός μπορεί να πάρει τη σκωρία με καλή ρευστότητα και μη ρέουσα ροή στη δεξαμενή τετηγμένης πισίνας, κουτάλας ή τετηγμένου σιδήρου, έτσι ώστε να βελτιωθεί η προεπεξεργασία και η μεταλλουργική απόδοση του σιδήρου και του τετηγμένου σιδήρου.
Ο εξοπλισμός έχει τέσσερις βαθμούς ελευθερίας: ολόκληρο το μηχάνημα περιστρέφεται, το πλαίσιο ανύψωσης ανεβαίνει / κατεβαίνει, ο τηλεσκοπικός βραχίονας επεκτείνεται και συστέλλεται προς τα εμπρός και προς τα πίσω και το πλαίσιο ταλάντευσης γέρνει πάνω και κάτω. Ευέλικτη δράση, υψηλή απόδοση αφαίρεσης σκωρίας, μεγάλη ισχύς αφαίρεσης σκωρίας και δύναμη διείσδυσης, σταθερή λειτουργία και βολική λειτουργία. Αποτελείται κυρίως από μηχανικό και ηλεκτρονικό έλεγχο, ο οποίος μπορεί να λειτουργήσει χειροκίνητα επί τόπου ή εξ αποστάσεως μέσω τεχνολογίας επικοινωνίας 5G.
Ο εξοπλισμός είναι εγκατεστημένος με προστατευτικές πλάκες κοντά στην κουτάλα, οι οποίες μπορούν να μειώσουν τη ζημιά της υψηλής θερμοκρασίας στον εξοπλισμό και είναι ασφαλής και αξιόπιστος.

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Nickel based High-temperature Alloy Forgings

Nickel based High-temperature Alloy Forgings

Typical products and materials：Superalloy materials for gas turbines, Inconel 718 forgings.

Inconel 718 Support Ring Chemical Composition:

Inconel 718 Support ring chemical composition
Inconel 718 Support ring chemical composition


Mechanical Properties of Inconel 718 Support Ring (ASME SB 637):

Mechanical properties ofInconel 718 support ring (ASME SB 637)
Mechanical properties ofInconel 718 support ring (ASME SB 637)

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Heavy Planetary Carrier and Transmission Components — Large Format Precision Machined to Drawing

Heavy Planetary Carrier and Large Format Transmission Components — Precision Machined to Customer Drawing

SMI manufactures heavy planetary carriers and large format transmission components to customer drawing and technical specification — covering planet carriers, ring gears, output flanges and gear shaft assemblies at weights and dimensions beyond the envelope of standard industrial reducer supply. The planet carrier shown below — Φ680 × 620mm, 810KG — is representative of the scale and precision machining capability SMI applies to heavy transmission component supply.

Every component in this category is produced to the customer’s own engineering drawing. Material grade, dimensional tolerances, heat treatment specification, surface finish and inspection requirements are all defined by the customer’s design — SMI’s role is to manufacture to that specification with the casting, forging and precision machining capability required to achieve it consistently.

SMI heavy planet carrier precision machined cast steel Phi 680 x 620mm 810KG to customer drawing specification for energy drilling mining and heavy industrial transmission systems
SMI heavy planet carrier — Φ680 × 620mm, 810KG, precision machined cast steel to customer drawing and specification

Representative Component — Planet Carrier Φ680 × 620mm, 810KG

The planet carrier is the most structurally demanding component in a planetary transmission system. It carries the full output torque of the reducer, supports the planet gear bearing loads on all pin positions simultaneously, and must maintain precise dimensional relationships between pin bores across its full service life under cyclic loading.

At Φ680 × 620mm and 810KG, the component shown represents a transmission system capable of handling several thousand kilowatts of input power — consistent with the drive system requirements of energy drilling equipment, large ball mills, tunnel boring machine cutter head drives and heavy marine lifting machinery. Key manufacturing requirements for a component at this scale include:

  • Casting integrity — at 810KG, internal soundness of the casting is critical. Any porosity or inclusion concentration at the hub or pin boss locations will initiate fatigue cracking under the cyclic torque loads of heavy drive service. SMI’s casting practice for heavy components includes controlled pouring, riser design and post-casting inspection to verify internal quality before machining begins
  • Pin bore positional accuracy — the angular and radial position of each planet pin bore determines the load sharing between planet gears. Positional error concentrates load on individual planets and reduces the effective torque capacity of the assembly. SMI machines pin bores to the positional tolerances specified in the customer’s drawing, verified by CMM inspection
  • Hub bore concentricity — the central hub bore carries the output shaft or sun gear shaft bearing. Concentricity relative to the pin bore pitch circle is machined and verified to drawing tolerance
  • Flange face flatness and bolt circle accuracy — the output flange face and bolt circle are machined to the assembly tolerances required for correct mating with the adjacent shaft or housing component

Heavy Transmission Component Range

Planet Carriers

Cast steel planet carriers from small industrial sizes up to 810KG and above — machined to customer drawing for single-stage and multi-stage planetary systems. Hub bore, pin bore positions, flange face and bolt circle all machined to drawing tolerance. CMM dimensional verification as standard on large format components.

Internal Ring Gears

Large format internal ring gears — cast or forged blanks, internal gear cut to specified module, tooth profile accuracy grade and face width. Heat treatment to specified surface hardness. Ring gear housing bore and mounting features machined to assembly drawing. Available in through-hardened and case-hardened configurations to customer specification.

Output Flanges and Carrier Flanges

Heavy output flanges and carrier flanges — precision machined bolt circle, mating face flatness and bore dimensions to assembly drawing tolerances. Flange face machining to the surface finish specified for the sealing or mating interface requirements of the customer’s application.

Planet Gear Shaft Assemblies

Planet gear shaft assemblies — external gear cutting to specified module and accuracy grade, shaft journal machining to bearing fit dimensions, spline features to customer profile specification. Heat treatment and surface finish to drawing. Available as individual components or as matched sets for a complete planet gear stage.

Sun Gears and Input Shaft Assemblies

Sun gear and input shaft assemblies — external gear cutting, journal machining and spline or coupling features to customer drawing. Case hardening or nitriding to specified surface hardness and case depth. Balanced to customer requirement for high-speed input shaft applications.

Application Sectors

Energy and Drilling Equipment

Heavy planetary transmission components for the drive systems of energy drilling and production equipment — including drawworks transmission systems, mud pump drives and rotary table drives for oil and gas drilling applications. These applications demand high torque density, resistance to shock loading and consistent dimensional accuracy across the full component set to ensure reliable operation under the demanding conditions of drilling service.

Mining and Mineral Processing

Large format planet carriers, ring gears and output flanges for ball mill drives, SAG mill drives, crusher drives and mine hoist transmission systems. Mill drive planetary systems operate continuously under high torque and are subject to the cyclic shock loads generated by the grinding charge — requiring casting integrity and dimensional accuracy that SMI’s heavy component manufacturing capability is designed to deliver.

Tunnelling and Construction Machinery

Heavy planetary transmission components for cutter head drive systems and large crawler crane travel drives. Cutter head planetary systems operate under extreme and variable load conditions — requiring robust casting design, controlled heat treatment and precise pin bore geometry to maintain load sharing across all planet positions throughout the service life of the drive.

Marine and Offshore Lifting

Planet carriers and ring gears for ship deck machinery, heavy lift crane slewing and hoisting drives, and offshore winch transmission systems. Marine applications require material certification to classification society standards — available on request from SMI.

Manufacturing Capability

Operation Capability
Casting Cast steel planet carriers and housings — weight from small industrial to 810KG and above
Forging Forged blanks for ring gears, sun gears and shaft components where mechanical property requirements exceed cast steel capability
Turning and boring Large format CNC turning and boring — hub bores, flange faces and journal diameters to drawing tolerance
Gear cutting Internal and external gear cutting — module, tooth profile and accuracy grade to customer specification
Pin bore machining Positional accuracy to customer drawing — CMM verification on large format planet carriers
Heat treatment Through hardening, case hardening and nitriding to specified surface hardness and case depth
Inspection CMM dimensional inspection, hardness verification, material certification — standard on heavy components

بالعربية — ناقلات الكواكب الثقيلة ومكونات نقل الحركة كبيرة الحجم

تقوم SMI بتصنيع ناقلات الكواكب الثقيلة ومكونات نقل الحركة كبيرة الحجم وفقاً لرسومات العملاء والمواصفات التقنية — تشمل ناقلات الكواكب، التروس الحلقية الداخلية، الشفاه الإخراجية، ومجموعات أعمدة التروس الكوكبية بأوزان وأبعاد تتجاوز النطاق المعياري. ناقل الكواكب الممثل: Φ680 × 620مم، 810 كجم. قطاعات التطبيق: معدات الحفر، مطاحن التعدين، آلات حفر الأنفاق، والرافعات البحرية الثقيلة. للاستفسار، تواصل مع فريق SMI →

En Español — Portasatélites Pesados y Componentes de Transmisión de Gran Formato

SMI fabrica portasatélites pesados y componentes de transmisión de gran formato según los planos y especificaciones técnicas del cliente — incluyendo portasatélites, coronas internas, bridas de salida y conjuntos de ejes de engranajes planetarios con pesos y dimensiones que superan el rango estándar. Portasatélite representativo: Φ680 × 620mm, 810KG. Sectores de aplicación: equipos de perforación energética, molinos de minería, maquinaria de tunelización y sistemas de elevación marina pesada. Para consultas, contacte al equipo de SMI →

Auf Deutsch — Schwere Planetenträger und Großformat-Getriebekomponenten

SMI fertigt schwere Planetenträger und Großformat-Getriebekomponenten nach Kundenzeichnung und technischer Spezifikation — einschließlich Planetenträger, Hohlräder, Ausgangsflansche und Planetenradwellenbaugruppen mit Gewichten und Abmessungen jenseits des Standardbereichs. Repräsentativer Planetenträger: Φ680 × 620mm, 810KG. Anwendungsbereiche: Energiebohrausrüstung, Bergbaumulühlen, Tunnelbohrmaschinen und schwere Marinehubsysteme. Für Anfragen, kontaktieren Sie das SMI-Team →

Related Products — SMI Transmission & Drive Systems

Request a Consultation

To discuss heavy planetary carrier or large format transmission component requirements, please provide the following at enquiry stage:

  • Component type — planet carrier, ring gear, output flange, gear shaft or complete stage
  • Key dimensions — outer diameter, height, hub bore diameter, approximate weight
  • Material specification — steel grade, heat treatment and mechanical property requirements
  • Gear data — module, number of teeth, accuracy grade (for ring gears and gear shafts)
  • Pin bore data — number of planets, pin bore diameter, positional tolerance (for planet carriers)
  • Application — equipment type and operating conditions
  • Inspection and certification requirements — CMM report, material cert, classification society if applicable
  • Drawing or 3D model if available

SMI will respond with a written technical assessment and commercial proposal. Contact SMI — Heavy Transmission Component Enquiry →

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5 Signs It’s Time to Replace Your Crusher Wear Parts

5 Warning Signs Your Crusher Wear Parts Need Replacing (Before They Fail)

Running crusher wear parts to complete failure is one of the most expensive maintenance habits in aggregate and mining operations. Yet it happens constantly — because wear is gradual, pressure to keep the plant running is constant, and the signs of imminent failure are easy to rationalise away.

Here are the five warning signs that indicate replacement is overdue.

1. Throughput Has Dropped Without a Change in Feed

If your crusher is processing fewer tonnes per hour than it was six months ago and nothing has changed in your feed material or feed rate, worn liners are the most likely cause.

As jaw plates, mantles, and concaves wear, the crushing chamber geometry changes. The effective nip angle decreases, material retention in the chamber increases, and throughput drops. Many operations attribute this to feed variability and never identify the actual cause.

What to do: Compare current throughput data against baseline performance from after the last liner change. A decline of more than 10–15% is a strong indicator that chamber geometry has deteriorated beyond the optimal range.

2. Product Gradation Has Shifted Coarser

Worn crushing chamber geometry produces a coarser, less consistent product. If your downstream screens are seeing more oversize material — or if product samples are consistently running coarser than your target gradation — worn liners are a primary suspect.

This matters commercially: oversize product may not meet customer specifications, requiring recirculation through the circuit at additional energy cost.

3. Power Draw Has Increased

A crusher working harder to achieve the same output draws more power. Worn liners increase the energy required per tonne of material crushed, as the machine compensates for lost geometry efficiency with increased mechanical effort.

Monitor your crusher’s amperage or kW draw against baseline. An increase of 8–12% or more, sustained over time rather than as a momentary spike from a large feed boulder, suggests the wear part is due for replacement.

4. Wear Indicators Have Disappeared — or Thickness Is Below Minimum

Most modern jaw plates and cone crusher liners have wear indicator grooves or studs cast into the wear surface. When these disappear, the liner is at or near minimum safe thickness.

If your liners do not have built-in indicators, establish a measurement protocol — measure liner thickness at defined points during planned maintenance stops and record the data. Trend analysis allows you to predict replacement intervals rather than react to failures.

Never operate a liner below the manufacturer’s minimum thickness specification. At this point, the backing material begins to take wear loads it was not designed for, and fracture risk increases significantly.

5. You Are Hearing Unusual Noise from the Crushing Chamber

Metallic clanging, irregular impact sounds, or a change in the crusher’s characteristic operating noise are warning signs that should never be ignored. These sounds can indicate:

  • A liner that has cracked internally and is moving within the crushing chamber
  • A liner that has lost its backing compound (epoxy or zinc alloy fill) and is no longer fully supported
  • A fastener or retention system that has loosened due to wear-related movement

Any of these conditions can escalate to catastrophic liner failure — including liner pieces entering the downstream circuit — within minutes of the first warning sound.

Stop the crusher and inspect immediately if you hear unexplained changes in operating noise.

The Case for Planned Replacement

The economics of planned replacement versus run-to-failure are consistently in favour of planned replacement:

  • Planned replacement allows scheduling during a maintenance window, uses parts that are in stock, and takes 2–4 hours of planned downtime
  • Unplanned failure causes immediate shutdown, often damages the crusher backing, mainframe, or downstream equipment, and can take 12–48 hours to recover from — with emergency parts freight on top

Establishing a liner replacement schedule based on actual wear rate data — rather than calendar time or intuition — is the foundation of cost-effective crusher maintenance.

SMI supplies replacement wear parts for all major crusher OEM models, with standard and enhanced-specification materials available. Full product range at minecomponents.com. Contact our team for a technical consultation.

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Aluminum Dross Recycling Systems

With unique design, our aluminum dross recycling system manage the hot dross very effectively , the oxidation and metal loss will be terminated in a very short time, in-house metal recovery could be 70-80%, much higher than any other solutions.

The Aluminum Dross Recycling System covers the following equipment.

Dross stirrer
Dross cooler
Crusher and screening machine
Dust collector
Conveyor

Aluminum Dross Recycling Systems (partial photographs)
Aluminum Dross Recycling Systems (partial photographs)

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Metal Ingot Molds

We offer Ingot molds with many sizes of standard, low-profile and high-profile, and with or without fork pockets as in the table below. Our molds are cast from a proprietary material, the material is developed by our own to provide a very good durability.

In addition to our proprietary material, we also supply other conventional steel molds and ductile iron molds, the material will be ASTM A27 Gr 70-40, ASTM A148 Gr 105-85, AISI 8630, GGG-40, GGG-50 and other materials that customers want, contact us to find the best solution for your company.

SMI - Ingot Molds
SMI – Ingot Molds