1. An oil-return system recirculates lubricating oil, reducing oil consumption.
2. A magnetic strainer at the return port prevents iron particles and other contaminants entering the reservoir, keeping circulating oil clean.
3. A timer controls lubrication and interval times. The controller has operation (ACT), alarm (ALM), lubrication (RUN) and interval (INT) indicators.
4. A small buzzer inside the controller sounds when an abnormal oil level is detected.
5. A special-alloy steel gear pump paired with an induction motor provides stable output pressure, quiet operation and a long service life.
6. A pressure-regulating valve allows discharge pressure to be adjusted as needed.
7. Includes a float switch for oil level detection and automatic signaling.
8. Includes a forced-feed button (F button) for manual lubrication.
9. After installation and piping, run continuous forced lubrication to prime the system. Begin normal operation only after the oil lines are completely filled.
10. Refer to the float / float switch specifications for contact information.
◆ Dimensions
| Motor Output Power | Tank Capacity | Tank Material | Length L (mm) | Width W (mm) | Height H (mm) | Mounting hole pitch F (mm) | Weight (kg) |
| 25W | 4L | Aluminum alloy | 309 | 170 | 265 | 95x280 | 7.50 |
| 8L | Sheet metal | 355 | 201 | 283 | 95x338 | 10.10 | |
| 12L | Sheet metal | 495 | 225 | 265 | 95x478 | 12.40 | |
| 60W | 8L | Sheet metal | 355 | 201 | 333 | 95x338 | 11.15 |
| 12L | Sheet metal | 495 | 225 | 311 | 95x478 | 13.45 |
◆ Specifications
| Operation Time | 1–999 seconds | |||
| Interval Time | 1–999 seconds / 1–999 minutes | |||
| Motor Output Power | 25W | 60W | ||
| Voltage | 110V | 220V | 110V | 220V |
| Current | 0.6A | 0.3A | 1.2A | 0.6A |
| Maximum Discharge Rate | 250cc/min | 500cc/min | ||
| Maximum Discharge Pressure | 15kgf/c㎡ | 30kgf/c㎡ | ||
| Frequency | Compatible with 50 Hz and 60 Hz. | |||
| Oil Outlet Size | Ø4, Ø6 | |||
| Oil return port size. | PT1/2, PT3/4 | |||
| Float Switch | NC contact | |||
| Applicable Oil Viscosity | 32–68 cSt at 40°C. Contact customer service about special oil viscosities. | |||
◆ Wiring Diagram
| Fault Output | Ground | Power Supply | |||
| NO(A) | NC(B) | COM | GND(P.E) | POWER | |
| ⊕ | ⊕ | ⊕ | ⊕ | ⊕ | ⊕ |
◆ Ordering Code
| Model | Tank Capacity (Material) | Operating Cycle (Operation × Interval) | Voltage | Motor Output Power | Oil Outlet Size | Oil return port size. | ||||||
| CEF | 05 | 2 | C | 25 | 3 | A | ||||||
| 05 | 4 L (aluminum alloy) | 1 | Seconds × Seconds | A | 110V | 25 | 25W | 0 | Ø4 | A | PT1/2 | |
| 08 | 8 L (sheet metal) | 2 | Seconds × Minutes | C | 220V | 60 | 60 W (only for tanks of 8 L or more). | 1 | Ø6 | B | PT3/4 | |
| 12 | 12 L (sheet metal) | 90 | 90 W (only for tanks of 8 L or more). | 2 | Ø4 (with pressure gauge) | |||||||
| 20 | 20 L (sheet metal) | 3 | Ø6 (with pressure gauge) | |||||||||
| 30 | 30 L (sheet metal) | |||||||||||
| 36 | 36 L (sheet metal) | |||||||||||
| 40 | 40 L (sheet metal) | |||||||||||
| 60 | 60 L (sheet metal) | |||||||||||
| 64 | 64 L (sheet metal) | |||||||||||
| 77 | 77 L (sheet metal) | |||||||||||
Recommended Compatible Products


Related Products
Related Services / service
Regional Products / city
- Anhui — CEF Electric Oil-return Lubricator
- Beijing — CEF Electric Oil-return Lubricator
- Chongqing — CEF Electric Oil-return Lubricator
- Fujian — CEF Electric Oil-return Lubricator
- Gansu — CEF Electric Oil-return Lubricator
- Guangdong — CEF Electric Oil-return Lubricator
- Guangxi — CEF Electric Oil-return Lubricator
- Guizhou — CEF Electric Oil-return Lubricator
- Hainan — CEF Electric Oil-return Lubricator
- Hebei — CEF Electric Oil-return Lubricator




