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Designed for high-demand food processing facilities, cold storage distribution centers, and commercial rack installations, the 06TTM301 screw refrigeration compressor delivers continuous mid-temperature performance.
High-Volume Refrigeration for Commercial Cold Chains
Powered by a heavy-duty 150 HP motor, this semi-hermetic twin-screw compressor handles a volumetric displacement of 504 m³/h (301 CFM) at 60Hz and 418 m³/h (250 CFM) at 50Hz. Optimized for R22, R404A, and R507 refrigerants, the unit features an integrated 1-3/8 in. economizer subcooling circuit that boosts liquid subcooling before the expansion valve, significantly improving system capacity and operating efficiency during peak thermal demand.
Dynamic Part-Load Unloading & Power Savings
To handle variable thermal loads caused by shifting product inventory, the 06TTM301 features a high-response stepless capacity adjustment system ranging from 25% to 100%. Dual solenoid valves modulate gas volume continuously to match real-time cooling needs. By eliminating sudden motor start-stop cycles, the compressor prevents line voltage spikes, maintains steady suction pressures, and minimizes facility power consumption during off-peak duty hours.
Heavy-Duty Mechanical Construction & Built-in Safeguards
Weighing 630 kg, the high-rigidity housing absorbs mechanical shock and dampens sound levels in industrial engine rooms. Operating through an internal pressure differential oiling network, the screw refrigeration compressor eliminates external mechanical oil pumps and their associated service wear.
Generous Line Porting: Oversized 4-1/8 in. suction and 3-1/8 in. discharge connections keep gas friction low and prevent pressure drop across line manifolds.
Internal Check Valve: Prevents high-pressure gas backflow from spinning the twin rotors in reverse during system shutoff.
Thermal Protection Electronics: Motor winding-embedded thermistors continuously monitor operating temperatures to protect against thermal overloads and electrical phase imbalances.
Included & Optional Component Setup
Standard Factory Assembly: Electrical Junction Box, Solenoid Control Valve Group, Internal Lubrication Piping, Motor Thermal Protection Module, Suction & Discharge Shutoff Valves.
Ruifujie brings over two decades of manufacturing excellence to the global HVAC and commercial refrigeration industry. We supply high-efficiency screw, semi-hermetic reciprocating, scroll, and rotary compressors, as well as complete cold storage systems and process cooling liquid chillers. Supported by full OEM/ODM customization capabilities and rigorous multi-stage quality verification, Ruifujie serves engineering contractors, equipment builders, and wholesalers across North America, Europe, the Middle East, and Asia-Pacific. We focus on building long-term commercial partnerships by combining direct factory pricing with reliable technical service.
Frequently Asked Questions
What makes the 06TTM301 compressor suitable for large-scale cold distribution centers?
With a high displacement of 504 m³/h at 60Hz driven by a 150 HP motor, a single 06TTM301 provides high mass-flow compression for medium-temperature cold rooms. It reduces total compressor count on compressor racks, simplifying electrical controls and piping layouts.
How does the economizer line improve subcooling in R404A and R507 systems?
Injecting vapor through the 1-3/8 in. economizer port subcools the main liquid refrigerant stream entering the evaporator expansion valve. This increases total refrigeration effect per kilogram of refrigerant circulated without placing additional strain on the motor.
Why is continuous stepless capacity control preferred over stepped unloading?
Stepless 25% to 100% modulation smoothly matches compressor capacity to real-time room heat loads. This prevents cycling, eliminates sudden temperature fluctuations, and improves long-term electrical efficiency.
Does the internal differential pressure lubrication system require routine pump servicing?
No. Lubricant flows naturally through internal differential pressure channels to lubricate the bearings. Eliminating a mechanical oil pump removes a common wear component and reduces routine system maintenance.
What measures ensure the 630 kg unit is protected during overseas shipping?
Each compressor undergoes complete pressure testing, vacuum dehydration, and a holding charge of dry nitrogen before being sealed in moisture-proof wrapping and secured inside a heavy-duty export plywood enclosure.
Contact Us for Engineering Quotations
Need CAD drawings, performance curves, or a commercial quote for the 06TTM301? Contact the Ruifujie technical team today to receive a comprehensive proposal within 8 business hours.
Please include the following details in your inquiry:
Model Code:
Target Quantity:
Application (e.g., Cold Storage Rack, Process Cooling):
System Refrigerant:
On-Site Voltage / Frequency:
Design Evaporating & Condensing Temperatures:
Company Details
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