Big Log
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Features
Extremely quiet fan with silencers on each end. You can practically converse next to this while running and have no problem hearing each other.
Tunnel ventilation is usually an exhaust system that places a fan outside of the tunnel to avoid noises from the fan to affect the tunnel’s working condition. The Big Log is quiet enough to offer an option to install it inside the tunnel.
The flowrate is easy to manage and adjust with variable pitch blades and a pitot tube flowmeter. The flowrate is displayed digitally, and it can be accessed from an external interface.
Pressure meter allows an operator to manage the optimum flowrate throughout the project. It will also stop the fan if it detects abnormal pressure that can stall the fan.
Unlike the standard models, the model CB is suitable for ventilating methane gas, as its fan is powered by a belt and it is structured to contain flammable gas. Consider using this with an explosion proof motor and an air curtain.
The pitch of the blades are manially adjustable as well.
The Mechanism and Performance of Variable Pitch Blade
The mechanism allows a single fan to cover a wide range of flowrate.
Sample Images
Big Log
Big Log
Big Log
(Explosion Proof)
Layout
Specifications
(1)Twin
| Product Code | BDJ 0300W 001 |
BDJ 0550W 001 |
BDJ 0800W 001 |
BDJ 1100W 001 |
BDJ 1500W 001 |
|---|---|---|---|---|---|
| Maker | Taniyama | ||||
| Model | CDH900- 21-30(4) W |
CDH1000- 26-55(4) W |
CDH1250- 26-80(4) W |
CDH1250- 26-110(4) W |
CDH1400- 30-150(4) W |
| Voltage (V) | 200/220 | 400/440 | 400/440 | 400/440 | 400/440 |
| Output (kW) | 30kW ×4P×2 |
55kW ×4P×2 |
80kW ×4P×2 |
110kW ×4P×2 |
150kW ×4P×2 |
| Air Volume(m3/min) | 800 | 1,000 | 1,500 | 2,000 | 3,000 |
| Pressure(kPa) | 2.54/3.53 | 3.62/4.7 | 3.92/4.9 | 4.11/4.9 | 3.92 |
| Layout Length(mm) | 6,000 | 6,600 | 9,250 | 9,250 | 11,800 |
| Mass(kg) | 2,900 | 3,600 | 5,600 | 5,600 | 8,600 |
| Noise Level(dB) | 80 | 83 | 85 | 85 | 88 |
(2)Single
| Product Code | BDJ 0300S 001 | BDJ 0550S 001 | BDJ 0800S 001 |
|---|---|---|---|
| Maker | Taniyama | ||
| Model | CDH900-21-30(4) | CDH1000-26-55(4) | CDH1250-26-80(4) |
| Voltage (V) | 200/220 | 400/440 | 400/440 |
| Output (kW) | 30kW×4P | 55kW×4P | 80kW×4P |
| Air Volume(m3/min) | 800 | 1,000 | 2,000 |
| Pressure(kPa) | 1.27/1.56 | 1.77/2.35 | 1.77/1.77 |
| Layout Length(mm) | 4,800 | 5,300 | 6,500 |
| Mass(kg) | 2,000 | 2,500 | 3,700 |
| Noise Level(dB) | 80 | 82 | 83 |
(3)Twin (Explosion Proof)
| Product Code | BDL 1100W 002 |
|---|---|
| Maker | Taniyama |
| Model | CDX1250-26-110(4)W |
| Voltage | 400/440 |
| Output (kW) | 110kW×4P×2 |
| Air Volume(m3/min) | 2,000 |
| Pressure(kPa) | 3.92/4.9 |
| Layout Length(mm) | 9,450 |
| Mass(kg) | 8,200 |
| Noise Level(dB) | 88 |
Resources (JP)
(1)Twin
| Product Code | BDJ 0300W 001 |
BDJ 0550W 001 |
BDJ 0800W 001 |
BDJ 1100W 001 |
BDJ 1500W 001 |
|---|---|---|---|---|---|
| Representative Models | CDH900- 21-30(4)w |
CDH1000- 26-55(4)w |
CDH1250- 26-80(4)w |
CDH1250- 26-110(4)w |
CDH1400- 30-150(4)w |
| Manual | |||||
| Layout(PDF) |  |
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| Engineering Department Catalogue | |
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English version under preparation
FAQ
Contact Us
AKTIO Corporation – Engineering Department: 
Address: Tokyo DL Center 4F, 3-6-41 Shinsuna, Koto-ku, Tokyo, 136-0075
