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The SP4LF1000 reciprocating chiller compressor delivers reliable performance for demanding commercial and industrial cooling applications with advanced energy regulation and robust construction.
Key Features
Flexible Energy Regulation & Load Adaptation: Solenoid-driven 2-step capacity control system (100% and 50% steps) minimizes motor cycling, maintains steady suction pressure, and optimizes electrical efficiency during partial-load conditions.
Suction Gas-Cooled Motor Architecture: Internal flow channels pass cool returning suction gas across motor windings, maintaining low operational temperatures. Supports dual-frequency power supplies (400V/50Hz and 460V/60Hz PW) and multiple refrigerants including R22, R407C, R134a, R404A, and R507.
Robust 4-Cylinder Drive Assembly: Heavy-duty 4-cylinder platform with dynamically balanced crankshaft, wear-resistant journal bearings, and precision-machined connecting rods reduces radial wear, dampens gas pulsation, and lowers operating vibration.
Integrated Filtration & Safety Safeguards: High-density suction filter screen traps debris before reaching compression chamber. Internal pressure relief valve and INT6902 electronic motor protection module guard against overpressure, thermal overload, and phase faults.
Applications
Commercial Liquid & Water Chillers: Modular central chillers and commercial air conditioning loops requiring step capacity control
Industrial Process Chilling: Plastic injection cooling, chemical processing, and pharmaceutical temperature maintenance
Low-Temperature Cold Storage: Walk-in freezers, cold chain distribution hubs, and food storage facilities
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 SP4LF1000 handle part-load operations in chiller applications?
A1: The 100% and 50% energy regulation system adjusts displacement to match reduced cooling demand, avoiding motor restart spikes and maintaining precise chiller outlet liquid temperatures.
Q2: What suction and discharge line dimensions are required during system piping layout?
A2: The unit is equipped with a 35 mm (1-3/8") suction connection and a 28 mm (1-1/8") discharge connection, with rotatable stop valves to simplify line positioning in compact chiller skids.
Q3: What operational safeguards are recommended for low-evaporating temperature conditions?
A3: Ensure the 230V/220W crankcase heater is energized during standbys to prevent oil dilution, and verify suction superheat to avoid liquid slugging during rapid load changes.
Q4: Can Coolstart customize nameplates and product branding for OEM chiller manufacturers?
A4: Yes, we provide full OEM customization including multi-language nameplates, custom logo placement, and modified technical labeling for volume production orders.
Q5: What are the available payment terms and sample lead times?
A5: Sample orders are dispatched within 3 business days, with payment supported via T/T and Western Union. Standard production orders are completed within 10 to 15 working days.
Request a Technical Quotation
Our engineering team provides comprehensive product selection, technical validation, and OEM support for commercial and industrial chilling projects. Contact us today to receive customized technical recommendations and a commercial quotation within 8 hours.
Please include the following details in your inquiry:
Model & Quantity
Refrigerant Type
Power Supply
Operating Conditions
Specific Chiller Skid
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...
