CENA-The Resistance Type Oil Electric Lubricator (Model CENA) is a timer-controlled centralized lubrication system offering flexible operation and reliable performance. The electrical control box features a built-in buzzer for low-oil level alerts and displays operation(ACT), alarm(ALM), immediate lubrication(RUN), and interval(INT) indicators. CENA can store operation and interval time settings, and incorporates a pressure gauge for easy pressure monitoring and an NC contact float switch for automatic low-oil level detection. A pressure-regulating valve allows for precise pressure adjustment. For manual lubrication, a feed-oil button is provided. CENA models with 3L or larger tanks can be equipped with an optional 1kgf/cm2 socket pressure switch for automatic pressure detection. The gear pump, constructed from special aluminum alloy and coupled with an induction motor, delivers stable output pressure, low noise, and extended service life, making CENA suitable for larger machinery.
◆ Dimensional Data
Motor
Power
Tank Capacity
Tank Material
Length (mm)
Width (mm)
Height (mm)
Fixed Hole
Distance (mm)
N.W. (kg)
25W
2L
Aluminum
222
162
245
95x200
5.70
3L
Resin
230
165
254
205
4.80
4L
Resin
277
162
266
250
5.20
4L
Aluminum
297
170
264
95x280
6.10
8L
Iron
355
201
285
95x338
9.40
60W
4L
Aluminum
297
170
311
95x280
7.70
8L
Iron
355
201
331
95x338
10.45
◆ Technical Data
Operation
Time
1-999
sec
Interval Time
1-999 sec, 1-999 min
Motor Power
25W
60W
Voltage
110V
220V
110V
220V
Ampere
0.6A
0.3A
1.2A
0.6A
Max. Discharge Volume
250cc/min
500cc/min
Max. Operating Pressure
15kgf/c㎡
30kgf/c㎡
Hertz
50/60Hz
Compatible
Discharge Bore
Ø4 ,
Ø6
Float Switch
NC
Contact
Pressure Switch
Optional
(NC Contact)
Suitable Viscosity
Oil, 32-68 cSt@40oC
◆ Wiring Diagram
Abnormal
Output
Ground
Power
NO(A)
NC(B)
COM
GND(P.E)
POWER
⊕
⊕
⊕
⊕
⊕
⊕
◆ Order Code
Model
Tank
Capacity(Material)
ACT x INT
Voltage
Motor Power
Discharge Bore
Special Request
CENA
03
2
C
25
3
※
02
2L (Alum.)
1
sec x sec
A
110V
25
25W
0
Ø4
B
Add
a Larger Buzzer
03
3L (Resin)
2
sec x min
C
220V
60
60W (Available for 4L
metal tank and above only)
1
Ø6
PC
Add
a NC Contact Pressure Switch (Available for 3L and above tanks only)
04
4L (Resin)
90
90W (Available for 4L
metal tank and above only)
2
Ø4 W/Pressure Gauge
05
4L (Alum.)
3
Ø6 W/Pressure Gauge
08
8L (Iron)