Specifications
Table of history of Oil Cooling Unit for cooling main shaft （Circulation type）
'05.3
Inverter typeＯＮ−ＯＦＦ type
△
□
☆
◇
■
□
☆
◎◎
◇
◇◇◇
☆☆
☆☆
□□ □□
△△△△
○○
○○○
※
□□
'02∼
Current model
'10∼ '12∼
10,000
9,5 0 0
9,000
8,500
8,000
7, 5 0 0
7,000
6,500
6,000
5,500
5,000
4,500
4,000
3,500
3,000
2,500
2,000
1,500
1,000
500
0
3.0
2.0
1.5
1.2
1.0
0.5
0.3
AKS
→
AKZ
− '8 7.5 '86 '87
'88.1∼10
'98.12 '88
'96.8∼10
'01.10 ∼'02.2
'87.5 '02.3 '88 '88 '93.3 '02.3 '97.3 '02.9
AKS33K
AKS53K
AKS103K
AKS203K
AKS303K AKS303AK
AKS203AK
AKS103AK
AKS54K
AKS35K
AKS54AK
AKS104K
AKS35AK
AKS55K AKS55AK
AKS105K AKS105AK
AKS205K
AKS100Z
AK Z106
AK Z206
AKZ306 AKZ(S)907
AK Z908
◇
AK Z909
AKZ(S)567 AKZ568
☆
AK Z569
AKZ(S)437 AKZ 438
AKZ(S)147 AKZ148
AKZ(S)257
AK Z328
◎
○
□
AK Z439
AK Z149
AK Z329AKZ(S)327
29
Supporting
information
Supporting information
Table of history
Old New
Horsepower
HP
Cooling capacity
W
Note）1. The larger the last number of a model name, the newer the series（For instance, AKS35K is newer than AKS33K）.
In addition, a model having the last alphabetic characters “AK” is newer than a model ending with “K” only.（For instance, AKS35AK is newer
than AKS35K）.
2. The cooling capacity is represented by the value at the standard point and at 60 Hz for all models.
3. The dimensions of the equipment may be changed on a newer type and older type on some models. Please check the dimensions on the
brochure and specification sheet （outline drawing） for selecting your equipment.
When you are about to buy new equipment due to a failure of the equipment or for other reasons, please check the conditions of new equipment
and select an appropriate type.
4. All the models have been changed to the inverter type since 2002.
5. AKSZ（S）“7” series uses new refrigerant R407C, AKZ “8”, AKZ “9” series uses new refrigerant R410A, and all other models use R22.
6. Existing units of 1HP class （AKS105AK, AKZ（S） 257 class） were integrated into AKZ328 of 1.2HP class.
AKS-Z
AKZ 6 series AKZ 7 series AKZ 8 series
AKS 3 series AKS 4 series AKS 5 series AKZ 9 series
Sales starting time
Discontinuation time
Series name
Conventional type