
OMNI® – 900WL
Replace Your Legacy Cryo Pumps with Superior-performing Marathon® Cryogenic Pumps
See the OMNI® 900 in Action
A hands-on look at the OMNI® 900 helium compressor, set up and connected to a cryopump.
A Straightforward CTI 9600 Replacement
The OMNI® 900WL takes over from a water-cooled CTI 9600 by moving the power, cooling water, and helium connections to the new compressor.
Up to Three Pumps on One Compressor
A single OMNI® 900 can support up to three pumps at once, including classic cryopumps and On-Board pumps at the same time.
More Pump and Service Options
A 2-phase/3-phase output switch lets the OMNI® drive higher-performing pumps that the 9600 can’t power, so you aren’t tied to one repair center or source of parts.
A Water-Cooled Helium Compressor Replacement for the CTI 9600
The OMNI® 900WL replaces legacy water-cooled compressors, drives the cryopumps you already have, and opens the door to higher-performing pumps from other manufacturers.
The OMNI® 900WL is an Edwards – CTI SC water-cooled alternative and allows you to replace legacy cryopumps with superior-performing Marathon® cryogenic pumps.

What the OMNI® 900WL Helium Compressor Replaces
The OMNI® 900WL is a replacement for the Edwards – CTI Water-Cooled Compressor and the legacy models below.
Why Choose the OMNI® 900WL?
OMNI® 900WL Helium Compressors replace your existing compressors and drive your cryopumps.
Multiple Pump Brands, One Tool
Drive multiple cryogenic pumps, made by different manufacturers, at the same time, on the same tool.
Standard and Auto-Regen Pumps
Runs Standard and Auto-Regen pumps, including both types at the same time.
2-Phase or 3-Phase Motors
Drives 2-phase or 3-phase cryopump motors, so it can power pumps your 9600 cannot.
Upgrade One Pump at a Time
Replace pumps as your operational needs require, without changing a complete multi-pump set at once.
Made and Serviced in the USA
OMNI® Helium Compressors are built and serviced in the USA.
Supported and Serviced Globally
See USA and North America support and global support options.
How a CTI 9600 Replacement Works
The video above shows these steps on a live test setup.
Shut Down the 9600
Turn off the cooling water and power to the existing compressor.
Move the Pump Connection
Connect the pump to one of the outputs on the OMNI®.
Set the Motor Output
Use the 2-phase/3-phase output switch to match your cryopump motors.
Connect the Utilities
Connect power, cooling water, and the helium lines to the OMNI®.
Start the OMNI®
Start the compressor, restart the pump, and monitor supply and return pressure.
Cryopumps the OMNI® 900 Can Drive
OMNI® Helium Compressors are designed to operate On-Board®, Cryo-Torr®, Marathon®, Cryo-Plex®, and GENCRYO® pumps. Quantities below are for one pump type on one compressor.
| Cryopump | OMNI® 900 Quantity |
|---|---|
| On-Board® and Cryo-Torr® 8, 8F | 3 |
| On-Board® and Cryo-Torr® 250F | 1-2 |
| On-Board® and Cryo-Torr® 10, 10F | 1-2 |
| On-Board® and Cryo-Torr® 400 | 1 |
| On-Board® and Cryo-Torr® 500 | 1 |
| Cryo-Torr® 20HP | 1 |
| Marathon® CP8 | 2 |
| Marathon® CP250 | 2 |
| Marathon® CP12 | 1 |
| Marathon® CP16 | 1 |
| Marathon® CP-20 | 1 |
| Cryo-Plex® 8 | 3 |
| Cryo-Plex® 10 | 1-2 |
| Cryo-Plex® 16 | 1 |
Running a mix of pump types? SynSysCo can confirm the right configuration for your tool. On-Board and Cryo-Torr are registered trademarks of Edwards Vacuum Inc., Marathon is a registered trademark of Sumitomo (SHI) Cryogenics of America, Inc., and Cryo-Plex is a registered trademark of Trillium US Inc.
OMNI® 900WL Specifications
| Electrical Supply | 3 Phase- 30 AMP 200 V, 50/60 Hz |
| Power Consumption | 6.6-6.9 kW at 50 Hz 7.5-7.8 kW at 60 Hz |
| Ambient Temp | 4 to 40 ºC (40 to 104 ºF) |
| Dimensions | 532 x 443 x 493 mm (20.9 x 17.4 x 19.4 in) |
| Weight | 100 kg (225 lbs) |
| Adsorber | 30,000 hrs. (~ 42 mo.) |
Benefits of Water-Cooled Compressors
Water-cooled compressors use water as a cooling medium to maintain optimal operating conditions.
Superior Cooling Efficiency
Water-cooled compressors are highly effective in maintaining lower operating temperatures, which supports performance in high-demand applications.
Quiet Operation
Effective heat dissipation through water reduces the need for large cooling fans, contributing to a quieter working environment.
Reduced Energy Consumption
Running cooler and more efficiently can lead to lower overall energy costs and reduced air conditioning demand in the facility.
Longevity and Reliability
Effective cooling helps prevent overheating and reduces wear, extending equipment life and minimizing maintenance and repairs.
Consistent Performance
A steady supply of water maintains heat dissipation under heavy load, supporting applications where continuous operation is critical.
Environmental Considerations
Managing and reusing water through closed-loop systems or cooling towers can minimize environmental impact.
Where the OMNI® 900 Series Fits
The OMNI® 900 Series supports multi-pump platforms and provides robust performance in these environments.
Semiconductor Device Manufacturing
Run multiple cryopumps on one tool from a single compressor, on networked or non-networked tools.
- Process chambers
- Transfer chambers
- Load locks
Coating and Thin Film
Keep legacy cryopumps in service while you upgrade one pump at a time.
- PVD systems
- Thin film coating
- Optical coating
Space Simulation
Support large vacuum systems with one compressor sized for multi-pump operation.
- Multi-pump platforms
- Cryopumps up to 20 inches
- Standard and Auto-Regen pumps
Research and Industrial Vacuum
Step up from smaller compressors when your system needs more capacity.
- R&D labs
- Accelerators and high-energy physics
- Industrial vacuum systems
OMNI® 900WL Helium Compressor FAQs
Answers to the questions engineers, maintenance teams, and buyers ask when a legacy compressor needs replacing.
Explore the OMNI® Line
Request a Quote
Need help confirming the right replacement for your compressor and pumps? Our team can review your current equipment, pump mix, and facility requirements.
For pricing and answers to your questions,
please call our Sales Department at 866-DRY-PUMP (866-379-7867)
