Refcomp SP4HN1200 SP4HN120E R134a Semi Hermitic Chiller Reciprocating Compressor
Product Overview
The chiller reciprocating compressor (SP4HN1200/SP4HN120E) is built for medium-to-high temperature commercial liquid chillers, HVAC climate control systems, and process cooling operations. Featuring a 4-cylinder design, it delivers a displacement of 42 m³/h at 50Hz (50.4 m³/h at 60Hz) driven by a 12 HP (8.9 kW) motor, ensuring consistent volumetric efficiency and structural reliability under continuous cooling loads.
Key Features
Precision Crankshaft, Connecting Rod & Piston Assembly
Engineered with a custom-balanced crankshaft incorporating integrated counterweights, this chiller reciprocating compressor minimizes rotational inertia and mechanical vibration. High-strength connecting rods paired with wear-resistant piston pin bushings maximize power transmission efficiency and operational longevity during demanding chiller operating cycles.
Hydrodynamic Sliding Bearings for Extended Lifespan
Utilizing babbitt-lined hydrodynamic sliding bearings paired with axial thrust washers, the internal drive layout distributes load stresses evenly across all dynamic friction points. Designed with specialized lubrication channels and wear-resistant bearing materials, the assembly delivers a service lifespan of 50,000 to 80,000 operating hours.
Internal Safety Valve Overpressure Protection
To prevent structural damage under sudden overpressure conditions, an internal safety relief valve bridges the high-pressure and low-pressure chambers within the casing. Engineered to open accurately at preset pressure thresholds and reset reliably, it ensures safe internal system pressure relief without discharging refrigerant to the environment.
Applications
- Commercial Air-Cooled & Water-Cooled Chillers: Designed for modular and packaged liquid chillers supplying commercial building HVAC systems and central cooling loops.
- Cold Storage & Supermarket Systems: Delivers reliable temperature management for medium-temperature cold rooms, food distribution hubs, and display cases.
- Industrial Process Fluid Cooling: Provides consistent thermal control for plastics manufacturing, beverage production, and pharmaceutical processing lines.
Product Image
Technical Parameters
| Model |
SP4HN1200/SP4HN120E |
| Rated power |
12HP/8.9KW |
| Exhaust volume(50/60Hz) |
42/50.4 m³/hr |
| Standard motor |
400V/3/50Hz,460V/3/60Hz PW |
| Oil lubrication method |
Splash lubrication (without oil pump) |
| Cylinders |
4 |
| Oil Charge |
2.6L |
| Weight |
146KG |
Company Introduction
Coolstart is an international manufacturer and supplier of commercial and industrial refrigeration equipment, specializing in high-performance reciprocating, scroll, and screw compressor technologies. Built to meet international standards for energy efficiency and operational reliability, our products feature automated precision manufacturing and flexible OEM/ODM capabilities. Coolstart serves engineering contractors, equipment manufacturers, and distributor networks across Europe, North America, the Middle East, and Asia-Pacific.
Frequently Asked Questions
Q1: What is the exact displacement and motor output rating of the SP4HN1200/SP4HN120E compressor?
A1: At 50Hz, it delivers 42 m³/h displacement with a 12 HP (8.9 kW) motor; at 60Hz, it provides 50.4 m³/h displacement.
Q2: What capacity regulation options are available on the SP4HN1200/SP4HN120E?
A2: The 4-cylinder compressor supports 2-stage step capacity regulation at 50% and 100%.
Q3: Which motor starting options and protection modules are integrated into this model?
A3: The compressor supports Part-Winding (PW) starting (75 A starting current) and Direct-On-Line (DOL) starting (125 A starting current), protected by an electronic INT69B2 module and PTC thermistors.
Q4: What is the standard lead time for sample and volume production orders?
A4: Stock sample units ship within 3 business days, while standard mass production orders take 10 to 15 working days.
Q5: What commercial terms and warranty does Coolstart offer?
A5: All compressors include a 1-year standard factory warranty. Orders are fulfilled under FOB Shenzhen or EXW terms, with payment accepted via TT or Western Union in USD.
Request a Technical Quote for SP4HN1200
Our application engineering team provides custom technical proposals and direct factory quotes within 8 hours of receiving your inquiry. Contact Coolstart today to optimize your system performance and receive a competitive quotation.
