Foseco Foundry Consumables, Feeding Systems and Molten Metal Filters

Engineering selection and global supply of Foseco (Vesuvius plc) foundry solutions: FEEDEX exothermic sleeves, KALMIN insulating feeders, STELEX zirconia filters, and Salamander crucibles.

Foseco FEEDEX High-Exothermic Spot Feeder Sleeves

FEEDEX exothermic feeder sleeves are engineered for high-pressure moulding lines. FEEDEX K features a collapsible metal core for spot feeding. The self-centring FEEDEX VAK series withstands extreme moulding pressures. FEEDEX FEF ensures fluoride emission-free casting.

Exothermic spot feeder sleeves FEEDEX K, FEEDEX VAK, FEEDEX HD V, and FEEDEX FEF
Feeding ductile, grey and malleable iron castings as well as cast steels
Extreme compressive strength resisting modern automatic moulding ram-up pressures
Clean knock-off and reduced fettling costs due to compact neck contact geometry

Foseco KALMIN Insulating Feeder Sleeves

KALMIN insulating feeder sleeves eliminate shrinkage defects in steel and non-ferrous castings. KALMIN S features a 0.45 g/cm³ density extending solidification time over twofold. Highly refractory KALMIN 70 sleeves are designed for copper and high-alloy steel grades.

Insulating feeder sleeves KALMIN S, KALMIN 70, KALMIN 250NE, and KALMIN 50A
Feeding heavy section castings in carbon steel, alloy steel, copper, and aluminium
Controlled 0.45 g/cm³ density delivering 2 to 2.2 times solidification extension
Neutral metallurgical behaviour avoiding gas defect reactions and burn-on

Foseco KALPUR Direct Pour Technology Units

KALPUR direct pour technology combines a feeder sleeve and a ceramic foam filter into a single assembly. Molten metal is poured directly through the unit straight into the mold cavity. This completely eliminates running and gating systems. KALPUR increases casting yield.

Direct pour units KALPUR for Iron, KALPUR for Steel, and KALPUR for Non Ferrous
Factory integration of STELEX ZR, STELEX PRO, or SEDEX filters with KALMIN sleeves
Complete elimination of runners, gates, and sprues from the pattern plate
Enhanced directional solidification with reduced pouring weight and fettling costs

Foseco STELEX and SEDEX Ceramic Foam Filters

Foseco molten metal filters entrap non-metallic inclusions, slag, and reoxidation dross during pouring. STELEX zirconia filters withstand aggressive steel casting temperatures. SEDEX silicon carbide foam filters are optimized for iron alloys. Smooth laminar flow prevents mould erosion.

Ceramic foam filters STELEX ZR, STELEX PRO, SEDEX, SUPER SEDEX, and SIVEX FC
Filtration of carbon and alloy steels, ductile iron, grey iron, and copper alloys
High refractory performance for zirconia base and silicon carbide matrix
Laminar metal flow smoothing stream velocity and eliminating erosion defects

Foseco Salamander and Noltina Crucibles and Refractories

Molten Metal Systems manufactures silicon carbide and graphite crucibles under Salamander and Noltina brands. Products provide high thermal conductivity during melting. Foseco also supplies monolithic furnace linings and stoppers. Engineered refractories extend furnace campaign life.

Foundry crucibles Salamander Super, Noltina, degassing tubes, and thermocouple sheaths
Melting and holding aluminium, copper-based alloys, zinc, and precious metals
Monolithic ramming mixes, dry vibrating linings for coreless induction furnaces and ladles
Superior oxidation resistance, energy efficiency, and extended crucible operational life

Foseco Foundry Coatings and Melt Treatment Solutions

Refractory coatings RHEOTEC, TENO, and SEMCO protect sand moulds from metal penetration. Zircon and aluminosilicate formulations create a permeable barrier for heavy castings. COVERAL fluxes and degassing tablets provide chemical melt refining. Systems deliver superior casting surface finish.

Water-based and solvent-based foundry coatings RHEOTEC, TENO, BARRICAT, and SEMCO
Mould and core refractory protection for grey iron, ductile iron, and steel castings
COVERAL refining fluxes, degassing tablets, and master alloy modifiers
Complete prevention of burn-on, veining, and mould erosion defects

Engineering Solidification Modulus Calculation and FEEDEX Sleeve Selection

Feeding calculations for ductile iron and cast steel components depend directly on casting modulus geometry. High-exothermic FEEDEX K and VAK feeder sleeves deliver feeding moduli from 0.8 cm to 4.5 cm while cutting riser metal volume by 60% to 80% compared with sand risers.

On automatic greensand moulding lines, self-centring FEEDEX VAK /61 and /62 series sleeves withstand high squeeze pressures. The collapsible metal breaker core allows fast and clean knock-off without casting body damage.

Thermal Insulation Physics and Performance of KALMIN Feeder Sleeves

For heavy-section alloy steel, carbon steel, and non-ferrous castings, exothermic reactions can cause gas porosity and local metallurgical defects. Purely insulating KALMIN S and KALMIN 70 sleeves with 0.45 g/cm³ density physically slow heat dissipation from the molten feeder head.

Solidification time extends 2.0 to 2.2 times compared with uninsulated sand molds. The organic-free KALMIN 250NE formulation prevents carbon pickup and eliminates workplace smoke emissions during pouring.

KALPUR Direct Pour Technology: Running System Elimination and Laminar Filling

KALPUR direct pour units combine a ceramic foam filter and an insulating feeder sleeve into a single prefabricated assembly mounted directly on the casting cavity. Liquid metal flows through the ceramic filter straight into the mold, eliminating sprues, runner bars, and ingates.

The open-pore ceramic matrix calms incoming turbulent flow, preventing air entrainment and sand erosion. Overall running system yield improvement saves between 15% and 30% of total poured weight.

Ceramic Foam Filtration Practice with STELEX Zirconia and SEDEX SiC Filters

Effective molten metal cleanliness requires trapping non-metallic inclusions, deoxidation slag, and reoxidation dross. SEDEX silicon carbide filters are engineered for ductile and grey iron, while STELEX zirconia filters withstand aggressive steel pouring temperatures.

Filters must be positioned with at least 5 mm perimeter seating overlap in the runner or riser base. Standard 10 to 20 PPI pore ratings balance metal throughput and priming velocity.

Foseco / Foseco International and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Foseco / Foseco International and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.