Raga Engineers

New Industrial Township, Faridabad, Haryana

With over two decades experience, Raga has been innovating to provide value to die casting companies globally. In addition to manufacture molds, cooling units and vacuum Raga also delivers high end quality spare parts for Injection and Molds such as:

Spare Parts For Injection:

• Shot Sleeves
• Plunger Tips
• Sprue Bush
• Diffuser
• Plunger Rod Assembly
• Plunger Adopters

Spare Parts For Molds:

• Core Pins
• Jet Cooled Core Pins
• Jet Coolers
• Spot Coolers

jet cooled core pins

cooling of small diameter core pin was a major challenge for die caster. The developments in the last decade have made it possible now. Raga has specialized manufacturing these customized jet cooled core pins where they are made as per customer drawings.

core pin with slender holes inside them to create cooling channels and jet coolers are inserted inside these core pins to facilitate the cooling process.

advantages of core pin cooling:

during high pressure die casting of aluminum alloys, generally there are three defects that are confronted by die casters on or around core pins:

• soldering
• shrinkage porosity around core pins
• wash out

cooling of core pins results in minimization of the defects. This process also improves the life of a core pin used in casting process.here are some advantages of using core pin cooling technology:

• reduced die maintenance
• reduced downtimme of die casting machines
• imroved life of die components, such as core pins
• imorved casting surface quality
• reduced usage of lubricant
• distortion control
• reduced tool cost in manufacturing

RAGA brings permanent solution to the problem of Gas Porosity for the die casting with their latest VACMAX Series of Vacuum Units. Available in different sizes and fully automated with touch screen control panel makes them very easy to use and highly popular amongst the die casting manufacturers.

How it benefits the die casters:

• Minimizing gas porosities significantly
• Increased density of die cast parts
• Ideal filling for complex molds
• Improved surface quality
• Increased die life due to reduced shot speed

Features of latest VACMAX Series:

• Designed with twin stage vacuum process for both shot sleeve and mold cavities in one cycle
• Available in 250, 500, 800 and 1000 ltr or as per customer's requirement
• Integrates easily with any die casting machine
• Touch Screen control
• Graphical display of vacuum stages
• Low maintainence and service

jet cooler

core pins are subject to high thermal stress during the casting process as it comes in direct contact with the molten metal till the metal solidifies. This can introduce defects in the core pin region due to:

• shrinkage
• soldering or
• wash out

to overcome these defects raga manufactures high quality customized jet coolers which are inserted into the core pins for maintaining the temperature around core pins and hence, minimizing casting defects.

raga offers jet coolers in different variants:

• thread type
• o ring type
• sleeve type
• roto type

RAGA specialises in manufacturing customised and standard Shot Sleeves for Die Casting Machines to 32000 tons capacity. RAGA's Shot Sleeves comes in two variants:

• Shot Sleeves
• Shot Sleeves with Vacuum System (Provision to connect with Vacuum Unit)

RAGAs CAD/CAM Design with State of the art cnc/spm manufacturing and inspection equipments innovates into manufacturing world class shot sleeves.

Shot Sleeves are subjected to deformations, thermal shocks and erosion phenomenon. RAGAs R&D carries out continual research into improvements of materials, thermal treatments and technologies which reduce such impacts on shot sleeve.

Characteristics:

• Salt bath/Vacuum hardening and tempering
• Gaseous nitriding
• Orthogonality/Coaxiality/Parallelism/Roundness of hole (max. 0.02 mm)
• Hole roughness after grinding Ra 0.2-0.4
• Traceability records available
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Plunger Tip

RAGA Manufactures quality Die Casting Consumables amongst which Plunger Tips and Shot Sleeves are one of the favorites with the die casters all over the world.

RAGAs R&D & Design with State of the art CNC/SPM manufacturing and inspection facility carry out continual research into application of Plunger tips. The ongoing quest for optimizing Shots has lead RAGA to indigenous and innovative designs for Plunger Tips.

Raga manufactures core pins which are classified in two categories broadly:

• Core Pins

Core pin or hole forming pins are subjected to high thermal stresses during the die casting process. It comes in contact with molten alloy till it solidifies.

• Jet Cooled Core Pins

Core pin with slender holes inside them to create coolong channels and jet coolers are inserted inside these core pins to facilitate the cooling process.

Raga has specialised manufacturing these customised jet cooled core pins where they are made as per customer drawings.

Features:

• Raw Material AISI H-13/DIN 1.2344
• Precisely Machined and Ground
• Min Dia 4.8mm casting dia pin
• Nitriding and Coating for improved life

To produce defect free castings with intricate & complex profile is a challenge. Ragas team has been working since last two decades on developing newer techniques and technologies like high velocity cooling (jet cooling) & vacuum system. These technologies which when used, can minimize shrinkage porosity and gas porosity in castings. Core pins are coupled with jet coolers and are integrated to the, high velocity cooling (jet cooling) machine

our HVCU (HIGH VELOCITY COOLING UNIT) comes in two variants:

1. HVCU Pro series
2. HVCU Nex series

benefits of having HVCU:

• minimized rejections due to shrinkage porosities
• well maintained dimensional accuracy of holes
• cost savings due to lower mold maintainence
• better process control
• quick return on investment

features:

• integrate to any die casting machine
• injects water and air periodically at high pressure into core pins
• designed as per international electro technical commission (iec) and ce marked
• powered by fully automated plc control system
• touch screen hmi display
• plug and play
• customisation compatible

Raga with its continued practice of product improvements is able to deliver innovative products and equipments to global standards. The product line includes Shot Sleeve, Plunger Tips, Plunger Rod Assembly, CorePin Cool Unit, High Velocity Cooling Unit (Jet Cooling) for Core Pins, Jet Bubblers, Jet Cooled Core Pins, Die Cooling Parts, Sprue Bush & Diffusers for die casting machine and molds.