1)  Resort World Sentosa - Universal Studio
( 12 sets of wheels  in various Primary 
AHU from 800mm diameter to 2600 mm diameter).
2) Marina Bay Sand Convention Centre  North Podium  ( 16 sets of wheels from 
1500 mm to  3500 mm diameter for high fresh air AHU )


Heat Exchanger "Hi-Panex"
The development for rotary type total heat exchanger at Seibu Giken started in 1970. 
Since that time, receiving the special subsidy for technological developments from MITI 
(Ministry of Int'l Trade & Industry) 6 times in total, we have succeeded in realizing 
several important improvements such as selection of the most suitable material,
increasing efficiency, polishing rotor surface, increasing rotor's physical strength 
and prevention of rotor deflection.

As a result, total heat exchanger rotors, which are ideal and reliable, have been released 
as Hi-Panex series. The production machinery for honeycomb rotors such as aluminum 
sheet hygroscopic treatment machines, corrugation machines, winding machines, surface 
polishing machines and so on have also been developed and assembled by us. Therefore, 
any honeycomb rotors using a variety of material can be manufactured according to the 
customer's requirements.

Then, as adsorbent for latent heat (moisture) exchange, ion exchange resin, which adsorbs
little odor, has been adopted for the first time in the world. Odor transfer and accumulation 
is extremely little compared with a former type using silica gel. In 1998, we developed 
and commercialized
"Ion Power Total Heat Exchanger".

Hi-Panex, total heat exchanger cassette is illustrated in the above figure. Hi-Panex rotor 
is rotated slowly at about 16 r.p.m. in the direction of the arrow. The separator divided 
the rotor into the exhaust (R>EA) and the supply (OA>SA)-zones. In other words, 
supply and exhaust air flow alternately through the rotor in opposite direction. Almost 
all the total heat passing through the exhaust zone is absorbed into the rotor element. 
The rotor accumulated with heat is rotated half a turn to transfer the total-energy to 
the air of the supply zone on the other side. Thus, the outdoor air (OA) is taken to 
the supply air (SA) and the return air (RA) is exhausted to the exhaust air (EA) while 
the total heat (temperature and humidity) energy is fully transferred to the fresh 
outdoor air (OA). It can be said, therefore, that the function of this heat exchanger 
is to supply the fresh air after bringing it close to the room air condition when there 
is a difference in temperature and/or humidity, and thus save energy.

download catalog


Characteristics of Hi-Panex
  1. Excellent corrosion resistance
    Ceramic fiber paper as basic materials is prepared for anticorrosive and anti-salt 
    application. Aluminum set is also treated to be anticorrosive.
  2. Washable rotor
  3. Easy connection & assembling even for the large type cassette.
  4. Simple & easy maintenance
    Hi-Panex is constructed with thoughtful consideration for easy periodic checking.
  5. Prevention of ammonia gas transfer
    When the total heat exchanger is operated, a very small quantity of ammonia gas 
    in the building (from toilet, etc.) passes through the rotor and could be adsorbed 
    with the rotor, and cross-contaminates. In order to prevent this, we are employing 
    a special adsorbent which can only adsorb moisture and pass alkaline gas through
    into the atmosphere. So the cross-contamination of ammonia gas in the rotor can 
    be completely prevented.


General Application
Type Material Heat Exchange Main Application Examples Application
PA Aluminum sheet Total General air conditioning
Against corrosion
Office bldg, Institute, 
School, Theater, 
Hospital, Hotel
-20 to +80 degrees
PC Ceramic sheet Total Against corrosion
Against salt damage
Animal laboratory, 
Vessel,  Swimming
 pool, Factory
-30 to +80 degrees


Aluminum total heat exchanger
New adsorption material + anti-bacterial, anti-mold material
We first commercialized the honeycomb rotor for total heat exchangers
using aluminum sheet in 1980 as a pioneer.


Hygroscopic treatment for aluminum sheet
First, the anticorrosive treatment is applied to the aluminum sheet. Then, 
the fine powder of inorganic adsorbent is strongly coated by baking 
without obstruction the adsorbent's "respiration". Furthermore, to 
prevent shedding the inorganic adsorbent powder, it is also fixed with 
porous coating materials. Therefore, the inorganic adsorbent can 
sufficiently effect adsorbent and desorption. And thus can provide 
the rotors with high efficiency.


Ceramic total heat exchanger
This rotor is suitable for and actually used at the places such as seashore, indoor 
swimming pool and factory where anti-corrosiveness is required. Ceramic fiber 
paper is adopted for this rotor and metal silicate is synthesized into the paper 
by chemical reactions. We applied a very similar method to SSCR dehumidifier
rotor which is also developed by us. As a result, it has high efficiency for 
exchanging latent heat, superiority in anti-corrosiveness and salt-resistance, 
and it can be washed by water. We have had many installations in Japan 
as well as in overseas countries.

Cross Flow Element Total Heat Exchange Cassette
Material : Plastic Sheet (Polypropylene) Material : Ceramic Paper, Flame-Proofed Paper, Aluminium



HI-PANEX-Ion Power Total Heat Exchanger-

Odor cross contamination can be solved with
On top of energy saving, reduction of CO2, the 
new adsorption type total heat exchanger is an 
epoch making solution for enhancement of real 
I.A.Q .(Indoor Air Quality).


Total Heat Exchanger, in which the silica gel adsorption material is firmly affixed to 
aluminum sheets by means of high temperature, is being conventionally unitized. 
In this case, at conditions of low humidity the adsorbent of the rotor element has 
additional adsorption capacity, and therefore adsorbs various kinds of odors.
However, when there is a high humidity condition in contrast to the above - 
displacement adsorption takes place and the adsorbed odor substances are 
displaced with moisture in the air by means of high hydrophilic characteristic 
of silica gel. This is a mechanism of odor emission from silica gel when used 
as the adsorbent for the total heat exchanger.
Although we at Seibu Giken have been preventing the odor problem with total 
heat exchangers by using a special silica gel, which relatively speaking, does not 
emit as much as other types, the odor problem could not be resolved.
Since 1993, we changed our approach to the problem and commenced the 
development of a new adsorbent type total heat exchanger and have succeeded 
in solving the odor cross contamination problem. (iPatent applied.)
Adsorption by silica gel Adsorption by Ion

Mold is not grown in the total heat exchanger by itself because its material of the heat 
exchanger is completely inorganic. However, there is a possibility that mold may be grown in 
the total heat exchanger due to the organic substances flowing from the outside.
Since we at Seibu Giken have utilized not only new adsorption material but also anti-bacterial, 
anti-mold material, we have successfully countered the odor problem and have achieved real
 enhancement of indoor air quality (I.A.Q.) with this new adsorption type total heat exchanger.  
New adsorption material?  anti-bacterial, anti-mold material.




email: info@way-technovation.com             How to find our address ?
Tel: 65-68410060    Opens on  9 am to 6 pm  Monday to Friday ( Except holidays).  
Address:  52 Ubi Avenue 3, #01-47 Frontier, Singapore 408867