Refcomp SP4LN0600 SP4LN060E Low-Temperature Chiller Reciprocating Compressor
Product Features
Two-Step Solenoid Capacity Regulation
The SP4LN0600/SP4LN060E semi-hermetic refrigeration compressor features solenoid-activated 2-step energy regulation delivering 100% and 50% capacity steps. This system dynamically balances compressor displacement against partial cooling loads, eliminating unnecessary motor cycling while maintaining consistent evaporator temperatures and significantly reducing energy consumption during reduced-load cycles.
Suction Gas-Cooled Motor Architecture
Engineered with internal flow channels that direct returning suction gas across the motor housing, this compressor keeps motor winding temperatures within optimal operating limits during low-evaporating-temperature duty. The versatile multi-refrigerant motor supports dual-frequency power supplies (400V/50Hz and 460V/60Hz PW) and ensures reliable compatibility with R22, R407C, R134a, R404A, and R507.
Heavy-Duty 4-Cylinder Reciprocating Assembly
Built around a rugged 4-cylinder casing, this semi-hermetic refrigeration compressor incorporates a dynamically balanced crankshaft paired with wear-resistant journal bearings and precision-machined piston linkages. The optimized drive train design dampens gas pressure pulsations and minimizes structural vibration during continuous commercial freezing operations.
Integrated System Protection & Filtration
To safeguard internal moving parts against system debris, this compressor includes an outer-accessible high-density suction filter screen that simplifies routine maintenance and filter cleaning. Operational safety is reinforced by an internal pressure relief valve that equalizes casing pressure during system anomalies, along with an INT6902 electronic protection module that monitors motor thermal status.
Applications
- Low-Temperature Commercial Freezers: Suitable for commercial walk-in freezers, supermarket frozen food cabinets, and holding rooms
- Cold Storage Distribution Logistics: Designed for refrigerated warehouse skids, distribution hubs, and cold chain preservation equipment
- Blast Freezing & Fast Chilling Equipment: Ideal for quick-freezing tunnels and flash-chilling units requiring steady low-temperature suction pressures
- Industrial Low-Temperature Process Cooling: Well-suited for pharmaceutical, chemical, and laboratory process chilling requiring reliable low-evaporating operation
Product Image
Technical Parameters
| Parameter |
Specification |
| Model |
SP4LN0600/SP4LN060E |
| 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 |
Splash 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
Q1: What system precautions prevent oil dilution and liquid slugging during low-temp defrost cycles?
A1: Installers should ensure proper suction line accumulators and suction heat exchangers are incorporated, and verify that the 230V/220W crankcase heater remains energized during compressor standby periods.
Q2: What vibration isolation measures are recommended when mounting the SP4LN0600 on a rack skid?
A2: The compressor base should be secured using resilient rubber vibration damping grommets, and flexible metal vibration eliminators should be installed on both suction and discharge lines.
Q3: How should electrical protection components be sized for the SP4LN0600 motor?
A3: Overload relays and circuit breakers must be calibrated to accommodate the 16 A max operating current, taking into account the 43 A Part-Winding or 70 A Direct-On-Line starting current requirements.
Q4: What technical details are required to confirm a formal proforma invoice (PI)?
A4: Buyers should confirm the exact operational power supply (voltage/frequency), intended refrigerant, valve positioning preferences, and order quantity.
Q5: What is the lead time for sample orders versus standard container shipments?
A5: In-stock sample units can be dispatched within 3 business days, while standard batch production orders are completed and dispatched within 10 to 15 working days.
Request a Technical Quotation
Our engineering sales team provides complete selection validation, system matching, and factory-direct pricing for commercial and industrial refrigeration projects. Send us your project parameters to receive a technical quote within 8 hours.
Please include the following details in your inquiry:
- Model & Quantity
- Refrigerant Type
- Power Supply
- Operating Conditions
- Specific System Requirements
