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Featuring 100% and 50% step-wise energy control, the SP4HN1200 reciprocating chiller compressor allows HVAC systems to match fluctuating thermal demand seamlessly. This dynamic modulation reduces short-cycling and cuts power consumption during off-peak chiller operation.
Integrated Suction Filter & INT6982 Protection
Equipped with an external crankcase-mounted high-density suction strainer, the unit captures foreign debris before gas enters the compression chamber. An integrated INT6982 protection module safeguards the internal motor windings against overheating and phase failure.
Precision Dynamic Bearings & Low-Vibration Drive
Built with floating dynamic sleeve bearings and a counterweighted crankshaft, this 4-cylinder reciprocating semi-hermetic mechanism minimizes friction and mechanical noise, ensuring stable running during continuous high-load cooling.
Applications
Commercial Water Chillers: Serves as a primary reciprocating chiller compressor in modular air-cooled and water-cooled liquid chillers for office complexes.
Industrial Process Cooling: Provides reliable fluid cooling for plastic injection molding and chemical jacket cooling lines.
Supermarket Centralized Racks: Integrates into parallel rack systems managing multiple medium-temperature refrigeration cases.
Cold Storage Warehousing: Ideal for medium-temperature agricultural holding facilities requiring long duty cycles and dependable load response.
Product Images
Technical Specifications
Parameter
Value
Model
SP4HN1200, SP4HN120E
Rated power
12 HP / 8.9 KW
Exhaust volume 50/60Hz
42 / 50.4 m³/hr
Cylinders
4
Weight
146 Kg
Oil Charge
2.6 L
Energy regulation
100%, 50%
Standard motor
400V/3/50Hz, 460V/3/60Hz PW
Starting current PW/DOL
75 / 125A
Max operating current
27A
Company Profile
Ruifujie brings over 20 years of expertise to the refrigeration industry as a modern, large-scale manufacturer and supplier. We specialize in scroll, reciprocating, rotary, semi-hermetic, and screw compressors, along with cold storage equipment, quick-freezing systems, and ice-making machinery. Supporting comprehensive OEM and ODM customization, Ruifujie exports reliable cooling solutions globally across Russia, the United States, the United Kingdom, the United Arab Emirates, Saudi Arabia, and other key international markets.
Packaging and Shipping
Frequently Asked Questions
How does the SP4HN1200 reciprocating chiller compressor handle partial thermal load changes in commercial HVAC chillers?
During periods of reduced heat load, the unit switches from 100% to 50% capacity step control, maintaining stable chilled water output without unnecessary motor restarts or excessive energy draw.
Is this compressor model suitable for continuous industrial liquid chilling applications with high vibration risks?
Yes, its precision-balanced crankshaft with counterweights and floating dynamic bearings absorb mechanical stress, allowing smooth, low-noise operation during 24/7 process cooling.
How does the internal motor cooling system perform when operating in high ambient temperature environments?
The cold suction gas passes directly around the motor windings before entering the compression cylinders, effectively dissipating winding heat even under continuous heavy-duty cooling cycles.
What are the minimum order quantities and delivery lead times for commercial shipments?
In-stock sample orders have no strict MOQ and ship within 3 days, while standard bulk production orders take 10 to 15 working days.
What warranty terms does Ruifujie provide for overseas buyers?
All compressor units supplied by Ruifujie are backed by a standard 1-year product warranty.
Request Direct Wholesale Pricing
Partner with our technical team to configure the ideal compressor setup for your commercial HVAC or industrial cooling project. Inquire today to receive a detailed technical offer within 8 hours.
Please specify your required Model, Quantity, Refrigerant, Voltage, Operating Conditions, and Project Requirements in your inquiry.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Year Established:
2006
Total Annual:
44000000-60000000
Employee Number:
110~115
Ecer Certification：
Verified Supplier
Shenzhen Ruifujie Technology Co., Ltd is a leading supplier of high-quality compressors for a wide range of industries and applications. With over 14 years of experience in the industry, we have built a reputation for
providing exceptional products and services to our customers.
&nb... Shenzhen Ruifujie Technology Co., Ltd is a leading supplier of high-quality compressors for a wide range of industries and applications. With over 14 years of experience in the industry, we have built a reputation for
providing exceptional products and services to our customers.
&nb...
