Shell racks are generally used in tiny foundries or in R&D or educational institutes. Foundries where the no. of shells processed is so less that process control is easy.

Shell drying conveyors is essential shell room equipment used in medium and large commercial foundries, where more than 150 shells are processed each day. Process control is computerised. Drying times for each shell is tracked by the PC. Operational instructions are continuously displayed on the LCD for each shell. The humidity and temperature of the shell room, air circulation, devices to create lamellar air flow around the shells to ensure uniform and quick drying of shells are all monitored, controlled and recorded by the conveyor computer.

Applications : The Wax Melter is a wax-melting, conditioning and holding machine. Purchased solid slabs of IC Wax is melted, conditioned to a certain uniform temperature and transferred to the wax injection machines. The machine may also be used to blend various waxes for required properties or to add filler material in required proportions. The machine consists of 4 main functional assemblies the melting Chamber, the conditioning tank, the piston pump and the heated wax transfer hose.Melting Chamber :- The melting chamber is a wax melting device that can hold about 30Kgs of solid wax. Four strip heaters quickly heat up the Aluminium base to provide a melting rate of about 15Kgs/hr. The chamber is located at the top of the Conditioning tank. Wax slabs are stacked in the melting chamber. The molten wax flows into the SS Conditioning tank and is stirred continuously at a constant temperature to form a uniform blend.Conditioning Tank :- The SS Conditioning tank has an MS heated thermic fluid jacket to maintain constant & uniform temperature. A sturdy and well-designed full sweep stirrer mounted on thrust bearings is provided to ensure homogeneity of the wax blend in the conditioning tank ready to feed the piston pump on demand. A heated SS heavy-duty ball valve is provided for Wax drain. Piston Pump : (optional feature)The machine is optionally provided with a temperature controlled pneumatic actuated piston pump. The pump can provide a max. discharge of 6 lpm. The conditioned wax is pumped directly to the reservoir of the injection machine through a heated temperature controlled pipe provided for pump discharge.Control Panel :- The machine mounted control panel is provided with mains indicators, heater on/off indicators, Power switches, Fuses & control switches. The panel is designed with separate power circuit and control circuit and provided with emergency cut-off switch. All the 4 temperature zones are continuously monitored and controlled using 4 separate PID type Digital temperature Indicator Controllers. A level sensor with low level alarm is provided to control molten wax level in the conditioning tank.Available in 50Kgs, 100Kgs and 150Kgs capacities in standard design. Larger capacities are available subject to requirement.The entire machine is mounted on full swivel castor wheels, so that the machine is mobile and can be taken to injection machines to load wax. The entire exterior of the machine is powder coated.Safety :- All required safety’s for electrical and thermal protection are provided. The safety’s are incorporated in the design as well as additionally provided where required.

Wax Room

Applications : Runner bars and down sprues of different sizes and shapes are required for clustering of the wax patterns to form ‘trees’. Gravity casting is a preferred method to produce these in large numbers to support production. The ‘Sprue Maker’ is designed for gravity casting of runner bars and sprues – with or without metallic inserts. A sprue maker consists of a Wax melting chamber, Wax reservoir, Pneumatic Piston Pump, Set of sprue dies and Cooling water chamber.Melting Chamber :- The melting chamber is a wax melting device that can hold about 30Kgs of solid wax. Wax is continuously melted and flows into the wax reservoir where it is stirred continuously at a constant temperature to feed the piston pump on demand. The chamber is located at the top of the wax reservoir. Electrical strip heaters quickly heat up the Aluminium base to provide a melting rate of about 15Kgs/hr. Wax slabs are stacked in the melting chamber. Piston Pump :-The machine is provided with a temperature controlled pneumatic actuated piston pump. The pump can provide a max. discharge of 3 lpm. The molten wax is discharged from the pump outlet through a heated pipe. The delivery of the pump fills the carriage mounted dies by gravity. Dies Set :- Two sets of dies designed to carry an Aluminium metal insert for use with a Ceramic pouring cup and Plastic coated handle is supplied along with the machine as part of standard supply. Sprue moulds of client specific design can also be supplied instead on demand.Die cooling :-The dies are mounted on a rotary carriage for movement from wax filling point to immersion into cooling water chamber to stripping station. This enables quick movement and high productivity.

The Press :The LNC Injectors are available in a variety of models in 4 - Pillar and C-Frame press designs. The total clamping force of the precision engineered press is calculated to accurately off-set the forces created during injection at maximum pressures.The press is provided with several standard features. These features are built-in to enhance productivity of the machine. Optional features that take efficiency to new highs are also available. Standard Press Features :The die clamping press has several features that are aimed at higher productivity, consistency and minimising operator fatigue. These are standard features for all models of LNC wax Injectors.M8 holes in a 50mm X 50mm grid are provided on the bottom & moving platens of the press for die mounting.Provision for platen cooling is provided as standard. The moving and Bottom platens of the press are provided with paths for coolant circulation. A die aligning jig is provided. This jig enables the operator to align the die correctly with the nozzle quickly. The jig is normally used when the dies are manually handled during short runs.Optional Features available :-LNC Injectors are offered with several optional features that further enhance productivity to new high. These options are normally available for the automatic models only. Three ‘T’ slots perpendicular to the nozzle may be chosen as the preferred die mounting facility in place of the M8- hole grid. Or a “quick-change die mounting” feature with hydraulic die-clamp facility may be chosen. This facility will bring the tool or die change time down to a few minutes further increasing productivity.Temperature is one of the most important control parameter of the injection machine. Platen temperature display is provided. Platen temperature display & control along with apparatus for cooling only or heating + cooling.Accelerated Press approach & return with soft clamping feature is provided to minimise cycle time & increase productivity.

Shell Materials :(Premixed Slurries)Premixed primary coat slurries and secondary coat LNC-Slurries : slurries – possess the following properties to ensure smooth manufacturing :Long shelf lifeExcellent refractoriesHigh green strength.Easy collapsibility during knock-outHi-solubility for chemical deshelling are the of that Refractory sands and flours that are used in investable ceramic mixes such as Silliminite & Fused quartz are available. The materials are uniformly sized, dust free, impurities are within controlled levels, and possess good refractoriness. All the materials are calcined and tested to assure consistent results.LNC – slurries and refractories are reliable tested materials - an assurance of good, consistent cast components. Slurry additives that are periodically added to maintain properties of slurries under use, such as Colloidal silica, wetting agents and de-foamers are available.

Rain Type Stucco Applicater

Shell Room Equipment

Melting Area

Shell Room

Wax Room