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Integrated Suction Gas Filtration System - Externally accessible high-density suction filter screen intercepts contaminants before gas reaches cylinder valves, enabling routine inspection without dismantling suction piping.
Suction Gas-Cooled Multi-Refrigerant Motor - Internal flow channels pass cool returning suction gas across motor windings to prevent thermal overload. Supports dual-frequency power supplies (400V/50Hz and 460V/60Hz PW) and compatible with R22, R407C, R134a, R404A, and R507 refrigerants.
Dynamically Balanced 4-Cylinder Drive Assembly - Heavy-duty 4-cylinder platform with balanced crankshaft, precision piston pins, and wear-resistant connecting rods minimizes pressure pulsations, dampens vibration, and reduces mechanical friction.
Internal High-to-Low Pressure Safety Relief - Internal differential safety valve automatically relieves excess pressure from discharge to suction side during pressure spikes, protecting compressor casing and preventing mechanical failure.
Applications
Commercial Walk-In Freezers & Cold Rooms - Supermarket cold rooms, commercial frozen storage, and walk-in freezer systems
Cold Chain Distribution Logistics - Central cold storage logistics, refrigerated distribution centers, and holding facilities
Industrial Process Temperature Control - Pharmaceutical, chemical, and industrial process chilling requiring consistent low-temperature output
Product Image
Technical Parameters
Model
SP4LN1000/SP4LN100E
Rated power
10HP/7.5KW
Exhaust volume (50/60Hz)
49/58.8 m³/hr
Standard motor
400V/3/50Hz, 460V/3/60Hz PW
Weight
144KG
Oil Charge
2.6L
Starting current PW/DOL
71/110A
Max operating current
24A
Oil lubrication method
Splash lubrication
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 internal pressure relief valve function during system overpressure?
A1: When discharge pressure exceeds safe operational limits, the internal relief valve opens to bypass gas directly back to the suction side, protecting the compressor casing before high-pressure cut-out switches respond.
Q2: What benefit does the 100% / 50% capacity regulation offer during reduced cooling demand?
A2: Capacity modulation allows the compressor to match lower cooling loads without starting and stopping the motor frequently, maintaining steady suction pressure and reducing electrical demand peaks.
Q3: What role does the outer-accessible suction filter play during routine servicing?
A3: Because the filter is mounted externally on the end casing, technicians can extract, inspect, and clean the filter screen without disturbing connected suction line pipes or flanges.
Q4: Can Coolstart provide custom technical nameplates and OEM branding for volume orders?
A4: Yes, we offer full OEM and ODM customization services, including customized nameplates, private labeling, special packaging, and voltage configurations for qualified volume orders.
Q5: What are the typical lead times for sample and batch production orders?
A5: In-stock sample orders are prepared for dispatch within 3 business days, while standard factory production orders are completed within 10 to 15 working days.
Request a Technical Quotation
Our engineering sales team provides custom model selection, system matching support, and factory-direct quotations within 8 hours. Contact us today with your project parameters to receive detailed technical evaluation.
Please include the following details in your inquiry:
Target Model & Quantity
Refrigerant Type
System Power Supply
Target 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...
