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Refcomp SP4LF0600 SP4LF060E R134a Semi-Hermetic Piston Compressor for Air Conditioning
Product Overview
Engineered specifically for low-temperature refrigeration applications, this semi-hermetic piston compressor features advanced energy regulation and motor protection systems.
Key Features
Two-Step Energy Regulation: Solenoid-controlled system offering 100% and 50% capacity steps to match compressor displacement with cooling demands
Advanced Motor Architecture & Gas Cooling: Internal flow channels pass cool suction gas across motor housing to prevent overheating
Dynamically Balanced Crankshaft: Heavy-duty 4-cylinder layout with optimized mechanical geometry to minimize friction and vibration
Integrated Motor Protection: INT6902 electronic module guards against phase loss and thermal overload
Pressure Safety: Internal high-to-low pressure relief valve for operational safety during pressure anomalies
Applications
Low-Temperature Commercial Freezers
Blast Freezing & Quick-Freezing Tunnels
Cold Storage Logistics Facilities
Industrial Low-Temperature Process Cooling
Product Image
Technical Parameters
Model
SP4LF0600/SP4LF060E
Rated Power
6HP/4.5KW
Exhaust Volume (50/60Hz)
35/42 m³/hr
Standard Motor
400V/3/50Hz, 460V/3/60Hz PW
Weight
134KG
Oil Charge
2.6L
Starting Current PW/DOL
43/70A
Max Operating Current
16A
Oil Lubrication Method
Pressure Lubrication
Manufacturer Profile
Coolstart is a modern, large-scale refrigeration enterprise with over 20 years of industry experience. We specialize in supplying semi-hermetic compressors, scroll compressors, screw compressors, reciprocating compressors, rotary compressors, cold storage equipment, quick-freezing systems, and ice-making machinery.
Supporting full-category OEM and ODM customization, Coolstart delivers reliable refrigeration products to clients across the United States, Russia, the United Kingdom, the United Arab Emirates, Saudi Arabia, and other global markets through technical innovation and dedicated service.
Frequently Asked Questions
How does the 100% / 50% energy regulation help in low-temperature cold room storage?
The two-stage capacity control enables operators to reduce compressor output during holding periods when full cooling capacity is not required, avoiding rapid cycling and maintaining steady relative humidity inside the cold room.
What piping sizes should be verified before installing the SP4LF0600 compressor?
Pipe lines should align with the 28 mm (1-1/8") suction line and 22 mm (7/8") exhaust line connections. The rotatable stop valves allow multi-angle piping, but rigid suction line support is recommended to reduce stress on the connection flanges.
What routine maintenance should be performed to protect the drive mechanical components?
Service technicians should routinely verify crankcase oil level through the sight glass, monitor suction superheat to prevent liquid floodback, and inspect the suction filter screen during routine overhaul intervals.
What is the MOQ and production delivery time?
We maintain zero MOQ for in-stock sample orders, which can be dispatched within 3 business days. Standard factory batch production orders are typically completed within 10 to 15 working days.
How are Coolstart compressors packaged and prepared for export shipping?
Compressors are securely mounted in heavy-duty export wooden crates. Orders transported via ocean freight are shipped with a factory holding gas charge, while air freight shipments are depressurized to strictly comply with aviation safety standard guidelines.
Request a Technical Quotation
Our technical engineering team provides custom model selection and system matching support for commercial and industrial refrigeration projects. Send us your project details to receive a complete solution and formal commercial quotation within 8 hours.
Please include the following details in your inquiry:
Model & Quantity
Refrigerant Type
Power Supply
Operating Conditions
Specific Application
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Trading Company
Year Established:
2001
Total Annual:
50000000-10000000
Employee Number:
80~100
Ecer Certification：
Verified Supplier
Shenzhen Coolstart Refrigeration Equipment Co., Ltd. is a modern, professional refrigeration manufacturer with over 20 years of industry experience. We focus on the professional production and global sales of high-performance refrigeration equipment, serving as a reliable and cost-effective suppl...
Shenzhen Coolstart Refrigeration Equipment Co., Ltd. is a modern, professional refrigeration manufacturer with over 20 years of industry experience. We focus on the professional production and global sales of high-performance refrigeration equipment, serving as a reliable and cost-effective suppl...
