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	Aerospace Quality Cast Rotors

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Ramco's proprietary casting process RAMCAST, was developed especially for aerospace and other applications that demand ultra high quality rotor castings. We designed the process, designed a custom machine to carry out the process, and built the machine in-house. We are the only company in the world with this process.

The benefits of casting rotors with the RAMCAST process include:

Ultra low porosity (compared to conventionally-cast rotors) - dense castings
Tighter dimensional tolerances
Structurally sound cast end rings allow motors to run at higher speeds
Higher Efficiency Rotors
Lower Stray Load Losses

Rotor Secondary Operations

Rotor ID Honing
Rotor OD Machining or Grinding
Rotor Keyway Broaching - We broach keyways up to 12" long in 280 frame rotors in a single pass on our 90” Horizontal Colonial Broaching Machine.
Rotor Annealing - This process is commonly known to the industry - heating the rotor core up and water quenching it and breaking the rotor bars away from the steel. This process creates a more efficient rotor!

Contact Ramco for more information about achieving the highest quality rotor castings using RAMCAST.

Specifications

Materials		Aluminum Copper Various Alloys upon your request

Outside Diameter		Up to 20 Inch

Cast Alloy Weight		Up to 18 lbs of Copper Up to 50 lbs of Aluminum

Secondary Services		Annealing (Baking & Flame) Balancing ID Honing Keyway Broaching Welding

Part Quantities		Batches up to 1,000 pieces Samples are available for expected production runs

Lead Time		4-8 weeks

Equipment		Electric Crucible Furnace (600 Lb. Capacity) Induction Heater RAMCAST Rotor Casting Press

Quality Assurance		Casting density on samples measured using destructive testing and x-ray photography Conductivity verified as required Dimensional Verification using calipers, mics & indicators Process can be locked on a per part basis

Industries Served		Aerospace Commercial Generator Manufacturers Machine Manufacturers Military Motor Manufacturers Pump Manufacturers

Compliance		AS9100:2004 ISO9001:2000

Cross Section		X-ray of rotor end ring

DOWNLOADS


		RAMCAST PAPER (PDF, 1995KB)

Aerospace Quality Cast Rotors

Materials

Outside Diameter

Cast Alloy Weight

Secondary Services

Part Quantities

Lead Time

Equipment

Quality Assurance

Industries Served

Compliance

Cross Section