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Dynamic Capacity Control & Load Matching: Engineered for demanding commercial refrigeration systems, this reciprocating semi-hermetic compressor incorporates a solenoid-driven 3-stage energy regulation system (100%, 66%, and 33%). By matching the compressor displacement directly to fluctuating system cooling loads, it reduces start-stop frequency, minimizes electrical stress, and optimizes power consumption under part-load operating conditions.
Advanced Motor & Gas Flow Architecture: Built with internal flow channels that pass cold suction gas across the motor before compression, the reciprocating semi-hermetic compressor maintains lower operating motor temperatures. This multi-refrigerant motor configuration supports dual-frequency operation (400V/50Hz and 460V/60Hz PW) and operates stably with R22, R407C, R134a, R404A, and R507.
Heavy-Duty Mechanical Drive Train: The 6-cylinder layout utilizes a dynamically balanced crankshaft, wear-resistant journal bearings, and optimized piston-connecting rod linkages. This rugged mechanical construction minimizes gas pulsation, absorbs operational vibration, and extends the mechanical service life of the reciprocating semi-hermetic compressor during continuous duty.
Integrated Suction Filtration & Safety Protection: To protect internal moving parts from system debris, the compressor includes an externally accessible high-density suction filter screen designed for easy inspection and replacement. An internal safety relief valve balances high and low suction pressures during sudden overpressure conditions, complemented by an INT6902 electronic protection module that continuously monitors motor thermal status.
Applications
Commercial HVAC & Fluid Chillers: Suitable for central commercial air conditioning plants and fluid chilling systems requiring flexible multi-step power control.
Medium/High-Temperature Cold Rooms: Ideal for fresh food storage facilities, agricultural holding rooms, and temperature-controlled distribution centers.
Industrial Process Cooling: Designed for industrial cooling loops requiring continuous operation, stable oil lubrication, and low vibration output.
Supermarket Parallel Compressor Racks: Well-suited for multi-compressor rack configurations subjected to frequent daily cooling demand swings.
Product Image
Technical Parameters
Model
SP6H4000/SP6H400E
Rated power
40HP/29.9KW
Exhaust volume(50/60Hz)
129.1/154.9 m³/hr
Standard motor
400V/3/50Hz,460V/3/60Hz PW
Weight
246KG
Oil Charge
4.2L
Starting current PW/DOL
201/330A
Max operating current
75A
Company Introduction
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
Q1: How does the 6-cylinder capacity regulation system benefit parallel rack operations?
A1: The three-step capacity output (100%, 66%, 33%) allows rack controllers to adjust displacement finely without cycling the compressor on and off, preventing suction pressure fluctuations and electrical spikes.
Q2: What piping considerations should be checked during the installation of SP6H4000?
A2: Piping should match the 54 mm (2-1/8") suction and 35 mm (1-3/8") discharge line sizes. The 360° rotatable stop valves simplify connection alignment, but lines must be properly clamped to avoid mechanical stress on the valve flanges.
Q3: What routine maintenance practices help protect internal mechanical parts?
A3: Operators should regularly inspect oil levels through the sight glass, verify operating superheat, and clean or replace the outer-accessible suction filter screen during scheduled system maintenance.
Q4: What is the standard MOQ and production lead time?
A4: In-stock sample orders have no MOQ requirement and can be dispatched in as fast as 3 days. Standard factory production orders are generally completed within 10 to 15 working days.
Q5: How are Coolstart compressors packaged and prepared for export transportation?
A5: Compressors are packed in heavy-duty export wooden cases. Sea freight orders are shipped with holding gas/refrigerant pressure, while air freight shipments are depressurized to comply with international aviation safety regulations.
Request a Technical Quotation
Our technical team provides customized selection support and system integration guidance for commercial and industrial refrigeration projects. Send us your project requirements to receive complete product recommendations and a formal quotation within 8 hours.
Please include the following details in your inquiry:
Model & Quantity
Preferred Refrigerant
Power Supply
Operating Conditions
Specific Project
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...
