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Medium-Duty Four-Cylinder Refrigeration Compressor

Blait is the leading industrial compressor manufacturer and supplier in China. As a premium producer, we provide a comprehensive range of industrial compressors for specialized applications. We proudly present the YBF4VCS-6.2Z~YBF4NCS-20.2G MEDIUM FOUR-CYLINDER PISTON COMPRESSOR, engineered with state-of-the-art technology and uncompromising reliability. Experience industrial-grade performance - contact us today for technical specifications and pricing solutions.

Availability:
Quantity:
  • YBF4VCS-6.2Z~YBF4NCS-20.2G

  • Blait


Product Overview

Blait, a leading industrial refrigeration solution provider in China, presents the YBF4VCS-6.2Z~YBF4NCS-20.2G Medium Four-Cylinder Piston Refrigeration Compressor—a high-performance, reliable unit engineered for medium-duty cooling needs. Equipped with an 8HP/5.5kW motor, this compressor delivers consistent refrigeration output for cold storage, industrial cooling setups, and HVAC systems. It supports multiple refrigerants (R22, R404A, R507A) and integrates state-of-the-art technologies like forced lubrication and pre-installed crankcase heaters, ensuring stable operation across condensing temperatures of 30–50℃.


Four-Cylinder Piston Compressor YBF4TCS-8.2ZR


Core Features

Compact & Lightweight Design: Weighing only 122kg (including oil), the compressor simplifies installation and transportation, saving space in tight industrial environments.

High Energy Efficiency: Optimized valve plates, minimized dead space, and a heavy-duty motor reduce power consumption (≤9.4kW for R22) while boosting the Coefficient of Performance (COP).

Two-Stage Capacity Control: Allows 50% or 100% load adjustment to match real-time cooling demands, cutting unnecessary energy use.

Forced-Lubrication System: A 2.6L oil volume ensures uniform lubrication of critical components, reducing friction and extending service life.

Low Vibration & Noise: A honeycomb exhaust silencer and circular structural design minimize mechanical oscillation, ideal for noise-sensitive areas.

Electronic Motor Protection: PTC sensors monitor motor windings and exhaust temperatures, preventing overheating and equipment damage.


Why Choose Blait

Certified Quality: Blait adheres to ISO 9001 (quality), ISO 14001 (environmental), and ISO 45001 (safety) standards, with a National Industrial Product Production License.

R&D Excellence: Its Hangzhou-based R&D center employs 100+ staff (24 engineers) and collaborates with Xi’an Jiaotong University to optimize compressor efficiency.

Precision Manufacturing: Advanced CNC equipment achieves ±0.01mm tolerance for components like cylinder blocks, ensuring consistent performance.

Rigorous Testing: Compressors undergo strict validation in temperature-controlled test stations, guaranteeing compliance with global industry benchmarks.


Technical Specifications

Detailed Parameters Table

Compressor model

YBF4VCS-6.2Z~YBF4NCS-20.2G

Nominal motor power

6/4.4~20/15

Displacement

(50Hz)m³/h

34.73~56.25

Number of Cylinder x Diameter x Stroke

mm

4×φ55×42~4×φ70×42

Oil injection volume

L

2.6

Power supply

V / Φ / Hz

380 ~ 420YY/3/50

440 ~ 480YY/3/60

Max. operating current

A

14~37

Starting current / rotor

locked current. operating current

A

39/68~97/158

Crankcase Heater (220V)

W

120

Oil supply method

Centrifgal lubrcation

Weight (including freezing oil)

Kg

127~142


Application limits Diagram

relating to 20℃ suction gas temperature

微信图片_2026-05-11_093552_999


Performance Parameter

微信图片_2026-05-11_081829_473

微信图片_2026-05-11_093859_024

微信图片_2026-05-11_094144_359


微信图片_2026-05-11_082149_794

微信图片_2026-05-11_094409_895

微信图片_2026-05-11_094516_704


Boundary Dimension And Location Dimension

Of Bore Diameter Suction Gas Port And Discharge Gas Port

微信图片_2026-05-11_094714_271



Key Applications

Cold Storage Facilities: Ideal for medium-temperature warehouses storing fruits, vegetables, and dairy products.

Industrial Cooling: Suitable for cooling equipment in food processing (e.g., beverage bottling) and small-scale manufacturing.

HVAC Systems: Complements commercial HVAC setups requiring reliable medium-duty refrigeration.



Maintenance & Warranty

Daily Maintenance: Check oil levels and drain condensate from tanks.

Monthly Maintenance: Inspect belts, tighten bolts, and clean air filters.

Annual Maintenance: Replace piston rings/seals and lubricate moving parts.

Warranty: 12-month limited warranty on the compressor body; 12-month coverage for wear parts (e.g., filters). Blait offers technical support via email/phone within 4 business hours.


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Zhejiang Briliant Refrigeration Equipment Co., Ltd. is a professional manufacturing enterprise that specializes in compressor design, research and development, production, and sales.
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