1. “Under-aeration” Shell core making machine, CDRX 1

2. 1. Specifications Sand fill Under Aeration Overall size
2700mm(L)×1270(B）×1450(H)mm
Core box size
Vertical parting:
(L) X (W): 500x500mm (Max)
Thickness: 150x150mm (Max)
Capacity
Dry cycle: 16 seconds
Sand charge time, curing time and core take-out time are NOT included.
Sand fill capacity
15kg (Max)
Hopper capacity
120kg
Die heating
Gas or electric
Core take-out
Manually taken out directly from core box from top
Air receiver tank
Optional

3. 2. Features 1. Greatly reduced size of machine
Machine volume 1/8 compared to conventional system
CDRX
Conventional Machine
1450mm
Over 3000mm
Hopper
Valve unit
Head
Hopper
Valve unit
Core box
Core box
Unloader
Head

4. 2. Features CDRX Conventional Machine 2. Simplified structure
Simple functions
Die – Open/Close
Head pressing
Sand fill
Core strip
 Reduced number of maintenance points
Head traverse
Head rotation
Unloader
Bucket elevator
Die rollover
Die cleaning
Minimum actuators
Cylinder: 2 systems, 3 units
Cylinder: 8 systems, 10 units
Motor: 3 units
Machine weight
Approximately 2 tons
Approximately 4 tons

5. 2. Features 3. Better filled core by aeration sand filling
　　■　By utilizing aeration sand filling technology, normally inferior sand filling from the bottom is improved or even better.
　　■　Thanks to aeration, sand becomes easier to move by fluidization, improving filling to small area and density of sand.
Air tank
Core box
Aeration
Sand

6. Compact Operation Panel
2. Features
4. Visualization of Quality
Compact Operation Panel
■ Improved visibility and better operation
■ Monitoring
Die temperature
Receiver tank pressure
Under-aeration head inner pressure (Optional)
Air flow volume (Optional)
Touch Panel
Sensor value display
Graph display

7. 2. Features 5. Effective capture of fume
　　■　Side suction without sacrificing workability and compact size
　　■　Can easily attached to deodorizer (Optional)
Deodorizer
Suction
Proposal example
Core box size 400~500 mm sq
Core weight 5kg
Air volume (assumption) 20m3/min
Deodorizer capacity varies depending on conditions and specifications

8. 2. Features 6. Utilization of existing die
　　■　As long as the core box size fit within the specified size, existing die can be used without special modification.
7. Easy accessibility to core
　　■　Core(s) can be easily accessible and are taken out manually off of core box from the top of the machine.

9. 2. Features 8. Hollow core making
　　■　By detaching the head before sand blow nozzle area is solidified, sand can be released, for possible making of hollow core
Hollow core
Die
Inside sand is dumped or released

10. 3. Structure Receiver Tank Core box Air supply valve Storage chamber
Aeration chamber
Aeration inlets
従来のトップブロー方式に比べ、静かで、砂の充填率も向上し、品質の安定に優れています。
新しい砂充填方法はアンダー方式とエアレーション方式を組み合わせたアンダーエアレーション充填方式を採用し、
これはヘッド形状をアルファベットのＪ型に似せた形状にし、内部に複数のエア噴出部を設け、そこからエアを供給する方式です。
金型下部の右側を吹込室、左側の遠い方を貯留室と呼びます。
Exhaust valve
Aeration inlets
Under-aeration head

11. 4. Operation sequence 1 Start 2 Head Pressed to die 3 Sand fill
Core box
Receiver tank
Head
4 Exhaust & Curing
5 Head Separation