Description
Central Scientific Cenco-Hypervac 25 Belt-Drive Vacuum Pump 93020 3/4 HP
The Cenco-Hypervac 25 is a rotary vane vacuum pump designed for laboratory and scientific applications requiring moderate to high vacuum levels. This belt-drive model couples a direct-drive rotary vane pump head with a 3/4 horsepower General Electric induction motor, connected by a flexible belt that allows independent motor and pump speed optimization. The pump achieves an ultimate vacuum of 0.1 micron according to its nameplate rating.
Specifications & What's Included
- Make & Model: Central Scientific Cenco-Hypervac 25 (Catalog No. 93020)
- Motor: General Electric model 5KC65AB553X, 3/4 HP, 1725 RPM, single-phase induction motor
- Voltage: 115/230V AC, single phase, switchable (dual-voltage)
- Current Rating: 10A at 115V / 5A at 230V
- Frequency: 60 Hz
- Pump Operating Speed: 990 RPM (belt-drive reduction from motor)
- Ultimate Vacuum: 0.1 micron (0.0001 mm Hg) per nameplate specification
- Lubrication: Oil-lubricated rotary vane pump design
- Drive Type: Belt drive with pulley coupling
- Dimensions: approximately 26 inches long × 19 inches wide × 24 inches high
- Form Factor: Benchtop or base-mounted installation
- Oil: Not included; pump oil must be added before operation
Applications
Cenco-Hypervac pumps are classical laboratory vacuum pumps used for vacuum distillation, solvent degassing, vacuum filtration, and general laboratory vacuum systems. These belt-drive models were widely deployed in educational institutions, research facilities, and industrial laboratories requiring reliable mid-range vacuum down to approximately 0.1 micron. The rotary vane design is robust and tolerant of light moisture, making these pumps suitable for applications involving solvents and volatile compounds. Cenco-Hypervac 25 units are compatible with standard laboratory vacuum manifolds, chamber setups, and glassware, and can serve both as primary vacuum sources and as backing pumps for higher-vacuum systems. The external belt drive allows the motor and pump to be sized and operated independently, a common design feature in laboratory equipment from the mid-20th century through the 1980s.
This Central Scientific Cenco-Hypervac 25 Belt-Drive Vacuum Pump (Model 93020) is being sold AS-IS for parts or repair. The unit shows surface rust on the housing and pulley consistent with age and storage. It has not been tested and is not guaranteed to be functional. To reach manufacturer specifications, this pump will require professional servicing and oil addition before operation. Oil is not included. Freight shipping is required for this item. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
Central Scientific |
Model: |
Cenco-Hypervac 25 |
MPN: |
93020 |
Type: |
Belt-Drive Rotary Vane Vacuum Pump |
SKU: |
46941 |
Seller Notes: |
Sold as-is for parts or repair. Oil not included. Freight shipping required. |
Country/Region of Manufacture: |
United States |
Form Factor: |
Benchtop / Base-Mounted |
Motor Brand: |
General Electric |
Motor Model: |
5KC65AB553X |
Motor Type: |
KC |
Horsepower: |
3/4 HP |
Voltage: |
115/230V AC |
Current Rating: |
10A / 5A |
Phase: |
Single Phase |
Frequency: |
60 Hz |
Motor RPM: |
1725 RPM |
Drive Type: |
Belt Drive |
Ultimate Vacuum: |
0.1 Micron (0.0001 mm Hg) |
Pump Dimensions: |
26 x 19 x 24 in (L x W x H approx) |
Application: |
Laboratory, Scientific, Vacuum Systems |
Lubrication: |
Oil-lubricated (oil not included) |
Review Status: |
Auto-Approved (needs review) 2026-07-04 |
Condition Notes: |
Central Scientific Cenco-Hypervac 25 rotary vane vacuum pump (Model 93020) sold as-is for parts or repair. Shows surface rust on housing and pulley. Oil not included. Requires servicing to reach manufacturer specifications. Freight shipping required. |
Dimensions: |
26 x 19 x 24 inches (L x W x H) |
Applications: |
Laboratory, Scientific, Vacuum Systems, Distillation, Degassing |
