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 PLC can control lubrication and interval times, or the unit can run continuously for long periods without PLC control.
4. A special alloy-steel gear pump paired with an induction motor provides stable discharge pressure, quiet operation and long service life.
5. A pressure-regulating valve allows discharge pressure to be adjusted as needed.
6. Includes a float switch for oil level detection and automatic signaling.
7. After installation and piping, run continuous forced lubrication to prime the system. Begin normal operation only after the oil lines are completely filled.
8. 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 | 297 | 170 | 251 | 95x280 | 6.85 |
| 8L | Sheet metal | 355 | 201 | 271 | 95x338 | 9.85 | |
| 12L | Sheet metal | 495 | 225 | 251 | 95x478 | 12.60 | |
| 60W | 8L | Sheet metal | 355 | 201 | 333 | 95x338 | 11.35 |
| 12L | Sheet metal | 495 | 225 | 311 | 95x478 | 13.65 |
◆ Specifications
| Motor Output Power | 25W | 60W | ||||
| Voltage | Single-phase 110 V | Single-phase 220 V | Three-phase Voltage | Single-phase 110 V | Single-phase 220 V | Three-phase Voltage |
| Current | 0.6A | 0.3A | 0.3A | 1.2A | 0.6A | 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 (NO contact available) | |||||
| Applicable Oil Viscosity | 32–68 cSt at 40°C. Contact customer service about special oil viscosities. | |||||
◆ Wiring Diagram
| Single-phase Voltage | Three-phase Voltage | M: Motor Power: Power Supply WS: Float Switch |
 |  | |
When wiring a three-phase supply, check whether motor rotation is reversed (the motor shaft is marked with a red dot). If rotation is incorrect, interchange any two supply wires.
◆ Ordering Code
| Model | Tank Capacity (Material) | Voltage | Motor Output Power | Oil Outlet Size | Oil return port size. | Special Requirements | ||||||
| CEH | 05 | C | 25 | 3 | A | ※ | ||||||
| 05 | 4 L (aluminum alloy) | A | Single-phase 110 V | 25 | 25W | 0 | Ø4 | A | PT1/2 | SO | Float switch changed to NO contact | |
| 08 | 8 L (sheet metal) | C | Single-phase 220 V | 60 | 60 W (only for tanks of 8 L or more). | 1 | Ø6 | B | PT3/4 | |||
| 12 | 12 L (sheet metal) | D | Three-phase 220/380 V | 90 | 90 W (only for tanks of 8 L or more). | 2 | Ø4 (with pressure gauge) | |||||
| 20 | 20 L (sheet metal) | E | Three-phase 220/440 V | 3 | Ø6 (with pressure gauge) | |||||||
| 30 | 30 L (sheet metal) | F | Three-phase 208/415 V | |||||||||
| 36 | 36 L (sheet metal) | G | Three-phase 230/460 V | |||||||||
| 40 | 40 L (sheet metal) | H | Three-phase 240/480 V | |||||||||
| 60 | 60 L (sheet metal) | M | Three-phase 220 V | |||||||||
| 64 | 64 L (sheet metal) | N | Three-phase 380 V | |||||||||
| 77 | 77 L (sheet metal) | X | Special Voltage | |||||||||
Note: Voltage codes D–H are three-phase dual-voltage models, wired for low voltage as standard. Specify high-voltage wiring when ordering if required.
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