Description
ULVAC D-950 Oil Rotary Vacuum Pump Rebuilt No Motor 1200 RPM 1.5 kW Japan
The ULVAC D-950 is an oil rotary vacuum pump manufactured by ULVAC Corporation of Tokyo, Japan. Oil rotary pumps of this type use a rotating vane mechanism submerged in oil to progressively compress and exhaust gas, achieving rough to medium vacuum levels suitable for a wide range of industrial and scientific applications. This unit has been rebuilt and is offered without a motor — the buyer is responsible for sourcing and fitting an appropriate motor to the drive pulley.
Specifications & What's Included
- Manufacturer: ULVAC Corporation, Tokyo, Japan
- Model: D-950
- Pump Type: Oil Rotary (Rotary Vane)
- Speed: 1200 RPM
- Motor Power: 1.5 kW
- Oil Capacity: 2.2 L
- Drive: Belt drive via external pulley (motor not included)
- Two cylindrical oil reservoir/separator columns mounted on top of pump body
- Cast iron pump body with mounting base feet
- Rating plate present and legible
- Rebuilt pump — motor is NOT included
Applications
ULVAC oil rotary vacuum pumps are used as primary (roughing) pumps in a broad range of vacuum systems, including thin-film deposition equipment, semiconductor processing, electron microscopy, freeze drying, vacuum furnaces, and general laboratory vacuum lines. The D-950 class pump is suited for use as a standalone roughing pump or as the backing pump for a high-vacuum system such as a diffusion or turbomolecular pump. ULVAC is a well-established Japanese manufacturer with a long history supplying vacuum equipment to research institutions, universities, and industrial facilities worldwide. A rebuilt unit such as this is commonly acquired for spare-parts inventory, system upgrades, or as a cost-effective replacement in an existing vacuum line.
This ULVAC D-950 Oil Rotary Vacuum Pump has been rebuilt and is being sold without a motor. The pump body, oil reservoirs, and mechanical assembly appear intact and complete based on inspection. The cast iron housing shows typical surface darkening and minor wear consistent with prior use and the rebuild process. The rating plate is present and legible. No motor is included — the buyer will need to supply or source a motor separately. Please view our photo set and contact us if you have any questions.
Warranty Information
Additional Information
Brand: |
ULVAC |
Model: |
D-950 |
MPN: |
D-950 |
Type: |
Oil Rotary Vacuum Pump |
SKU: |
18385 |
Condition: |
Used – Rebuilt, No Motor Included |
Seller Notes: |
Rebuilt pump body only — motor is not included |
Country/Region of Manufacture: |
Japan |
Speed (RPM): |
1200 RPM |
Motor Power: |
1.5 kW |
Oil Capacity: |
2.2 L |
Pump Mechanism: |
Oil Rotary (Rotary Vane) |
Motor Included: |
No |
Rebuilt: |
Yes |
Manufacturer Location: |
ULVAC Corporation, Tokyo, Japan |
Form Factor: |
Benchtop / Freestanding |
Review Status: |
Auto-Approved (needs review) 2026-07-03 |
Condition Notes: |
Rebuilt ULVAC D-950 Oil Rotary Vacuum Pump — no motor included. Pump body and mechanical assembly are intact. Housing shows typical wear. Buyer must supply motor. Please contact us with questions. |
