Introduction to Bitzer Compressor and Company History
Germany’s Bitzer Company is a leading manufacturer specializing in refrigeration and air conditioning compressors, renowned for its extensive product line and expertise in the global refrigeration industry. Established in 1934, Bitzer has solidified its reputation as a dependable compressor manufacturer worldwide. The company offers a diverse array of refrigeration compressors tailored to various refrigeration and air conditioning requirements. These include Reciprocating, Screw and Scroll types, each meticulously engineered to deliver efficient performance across a broad spectrum of applications. Bitzer compressors are celebrated for their reliability, durability, and strict adherence to quality standards, making them the preferred choice for customers seeking dependable cooling solutions.
Choosing a Bitzer Compressor
To select a Bitzer compressor, determine the required power using the data below and the Bitzer Compressor catalog or utilize the Bitzer Compressor selection software online:
– Refrigeration capacity (kW)
– Evaporator temperature (degrees Celsius)
– Condenser temperature (degrees Celsius)
– Refrigerant type
It’s advisable to consult with an expert in the refrigeration industry to avoid inaccuracies in compressor sizing. Choosing a compressor with too much or too little power can compromise system performance, increase depreciation, and significantly reduce equipment lifespan.
Bitzer Compressors Types
Bitzer Semi-Hermetic Piston Compressor
Bitzer semi-hermetic piston compressors are versatile solutions suitable for cold storage, ice machines, ice banks, air conditioning, and various refrigeration systems. These compressors excel in performance and efficiency due to their precise design and advanced technologies.
Features such as compact design, high efficiency, low noise, and extended lifespan make Bitzer semi-hermetic piston compressors ideal for diverse applications in the refrigeration industry.
– Very low noise and vibration levels
– High cooling capacity with minimal energy consumption
– Redesigned cylinder head, valve plates, piston, and connecting rod for enhanced performance
– Optimized gas flow to minimize pressure drop
– Compatible with common refrigerants like R-22, R134a, R404A, R407C, R507A
– Expanded operating temperature range, up to 85 degrees Celsius for R134a and 62 degrees Celsius for R507A and R404A refrigerants
Bitzer semi-hermetic piston compressors are widely used models where the electric motor and compressor are integrated within the same housing. These compressors regulate motor temperature using return suction gas, with additional head cooling fan options available for precise cylinder temperature control. Refer below for detailed technical specifications of Bitzer semi-hermetic piston compressors.
Bitzer Semi-hermetic Reciprocating Technical Specifications Table
| Electrical Data | Pipe Connections | Weight(kg) | Oli Charge (dm3) | Number Of Cylinders | Displacement at 1450 min-1 (m3/h) | Motor Power (HP) | Compressor Type | ||
| Max power consumption (KW) | Max operating current (A) | SL(inch) | DL(inch) | ||||||
| 2.7 | 8.7 | 5/8 | 1/2 | 45 | 1.0 | 2 | 7.58 | 1.5 | 2GES-2-40S |
| 2.9 | 9.2 | 5/8 | 1/2 | 45 | 1.0 | 2 | 9.54 | 2 | 2FES-2-40S |
| 3.4 | 10.7 | 5/8 | 1/2 | 45 | 1.0 | 2 | 9.54 | 2 | 2FESP-3-40S |
| 4.0 | 13.4 | 7/8 | 5/8 | 68 | 1.5 | 2 | 13.4 | 2 | 2DES-2-40S |
| 4.6 | 15.0 | 7/8 | 5/8 | 71 | 1.5 | 2 | 13.4 | 3 | 2DES-3-40S |
| 5.0 | 15.8 | 7/8 | 5/8 | 70 | 1.5 | 2 | 16.2 | 3 | 2CES-3-40S |
| 5.6 | 17.4 | 7/8 | 5/8 | 70 | 1.5 | 2 | 16.2 | 4 | 2CES-4-40S |
| 5.3 | 16.5 | 7/8 | 5/8 | 82 | 2.0 | 4 | 18.1 | 3 | 4FES-3-40S |
| 5.8 | 18.8 | 7/8 | 5/8 | 86 | 2.0 | 4 | 18.1 | 5.5 | 4FES-5-40S |
| 6.9 | 21.2 | 1/8 1 | 5/8 | 84 | 2.0 | 4 | 22.7 | 4 | 4EES-4-40S |
| 7.6 | 23.7 | 1/8 1 | 7/8 | 86 | 2.0 | 4 | 22.7 | 5.5 | 4EES-6-40S |
| 18.1 | 25.2 | 1/8 1 | 7/8 | 86 | 2.0 | 4 | 26.8 | 5.5 | 4DES-5-40S |
| 8.9 | 28.7 | 1/8 1 | 7/8 | 89 | 2.0 | 4 | 26.8 | 7.5 | 4DES-7-40S |
| 9.7 | 30.8 | 1/8 1 | 7/8 | 91 | 2.0 | 4 | 32.5 | 7.5 | 4CES-6-40S |
| 11.3 | 35.1 | 1/8 1 | 7/8 | 91 | 2.0 | 4 | 32.5 | 9 | 4CES-9-40S |
| 11 | 16.5 | 1/8 1 | 7/8 | 129 | 2.6 | 4 | 34.7 | 7.5 | 4VES-7-40P |
| 12 | 199 | 1/8 1 | 7/8 | 139 | 2.6 | 4 | 34.7 | 10 | 4VES-10-40P |
| 13 | 19.9 | 3/8 1 | 1/8 1 | 134 | 2.6 | 4 | 41.3 | 9 | 4TES-9-40P |
| 14 | 22.7 | 3/8 1 | 1/8 1 | 139 | 2.6 | 4 | 48.5 | 10 | 4PES-12-40P |
| 16 | 28.2 | 5/8 1 | 1/8 1 | 147 | 2.6 | 4 | 48.5 | 15 | 4PES-15-40P |
| 19 | 33.2 | 5/8 1 | 1/8 1 | 150 | 2.6 | 4 | 56.2 | 20 | 4NES-20-40P |
| 22 | 36.7 | 5/8 1 | 1/8 1 | 190 | 4.0 | 4 | 73.7 | 15 | 4HEP-18-40P |
| 25 | 44.0 | 1/8 2 | 1/8 1 | 194 | 4.0 | 4 | 73.7 | 25 | 4HEP-25-40P |
| 27 | 43.9 | 1/8 2 | 1/8 1 | 192 | 4.5 | 4 | 84.6 | 20 | 4GEP-23-40P |
| 28 | 51.2 | 1/8 2 | 1/8 1 | 206 | 4.5 | 4 | 84.6 | 30 | 4GEP-30-40P |
| 33 | 53.2 | 1/8 2 | 3/8 1 | 228 | 4.75 | 6 | 110.5 | 25 | 4HEP-28-40P |
| 36 | 64.4 | 1/8 2 | 3/8 1 | 235 | 4.75 | 6 | 110.5 | 35 | 4HEP-35-40P |
| 40 | 65.5 | 1/8 2 | 3/8 1 | 228 | 4.75 | 6 | 126.8 | 30 | 6GEP-34-40P |
| 42 | 73.9 | 1/8 2 | 3/8 1 | 238 | 4.75 | 6 | 126.8 | 40 | 6GEP-40-40P |
| 46 | 83.2 | 1/8 2 | 5/8 1 | 241 | 4.75 | 6 | 151.6 | 40 | 6FEP-44-40P |
| 51 | 96.2 | 1/8 2 | 5/8 1 | 241 | 4.75 | 6 | 151.6 | 50 | 6FEP-50-40P |
| 63 | 113.0 | 1/8 3 | 5/8 1 | 350 | 5.0 | 8 | 185 | 60 | 8GEP-60-40P |
| 78 | 139.0 | 1/8 3 | 1/8 2 | 374 | 5.0 | 8 | 221 | 70 | 8FHE-70-40P |
Bitzer Two-Stage Semi-Hermetic Piston Compressor
Bitzer two-stage semi-hermetic piston compressors are designed for achieving ultra-low temperatures (as low as -65 degrees Celsius), making them ideal for applications like freezing tunnels and Individual Quick Freezing (IQF) processes. These compressors utilize two compression stages and higher pressures to generate extremely low temperatures, crucial for preserving food quality in industries requiring precise temperature control.
– Optimized suction and discharge valves ensure efficient performance
– Equipped with a CIC liquid injection system for enhanced reliability
– Terminal box with IP54 degree of protection for durability in diverse environments
– Large motor volume with optimized rotor and stator to achieve optimal power factor (cos Φ)
– Electric motor temperature protection system featuring PTC sensor technology
– Compatible with refrigerants R-22, R134a, R404A, R407C, R507A
Bitzer two-stage piston compressors can achieve evaporator temperatures as low as -70 degrees Celsius and condenser temperatures up to +55 degrees Celsius. Available in power ranges from 5 to 60 horsepower, these compressors are tailored for systems requiring both high compression ratios and low operating temperatures. Refer below for detailed technical specifications of Bitzer double-stage semi-hermetic piston compressors.
| Electrical Data | Pipe Connections | Weight(kg) | Oli Charge (dm3) | Number Of Cylinders | Displacement at 1450 min-1 (m3/h) | 9.2Compressor Type | |||
| Max power consumption (KW) | Max operating current (A) | SL(inch) | DL(inch) | HP(m3/h) | LP(m3/h) | ||||
| 6.9 | 14 | 1/8 1 | 7/8 | 136 | 3 | 4 | 12.6 | 19.7 | S4T-5.2-40P |
| 9.7 | 17 | 1/8 1 | 7/8 | 141 | 3 | 4 | 17.9 | 28.0 | S4N-8.2-40P |
| 13.8 | 24 | 3/8 1 | 1/8 1 | 180 | 4.5 | 4 | 27.0 | 42.3 | S4G-12.2-40P |
| 18.1 | 31 | 5/8 1 | 3/8 1 | 209 | 4.75 | 6 | 31.8 | 63.5 | S6J-16.2-40P |
| 21.5 | 37 | 5/8 1 | 3/8 1 | 220 | 4.75 | 6 | 36.9 | 73.6 | S6H-20.2-40P |
| 24.9 | 45 | 5/8 1 | 3/8 1 | 233 | 4.75 | 6 | 42.3 | 84.5 | S6G-25.2-40P |
| 30.1 | 53 | 5/8 1 | 3/8 1 | 234 | 4.75 | 6 | 50.5 | 101.1 | S6F-30.2-40P |
| 18.1 * 2 | 31 * 2 | 5/8 1 | 3/8 1 | 411 | 9.5 | 6 * 2 | 31.8 * 2 | 63.5 * 2 | S66J-32.2-40P |
| 21.5 * 2 | 37 * 2 | 5/8 1 | 3/8 1 | 433 | 9.5 | 6 * 2 | 36.9 * 2 | 73.6 * 2 | S66H-40.2-40P |
| 24.9 * 2 | 45 * 2 | 5/8 1 | 3/8 1 | 459 | 9.5 | 6 * 2 | 42.3 * 2 | 84.5 * 2 | S66G-50.2-40P |
| 30.1 * 2 | 53 * 2 | 5/8 1 | 3/8 1 | 461 | 9.5 | 6 * 2 | 50.5 * 2 | 101.1 * 2 | S66F-60.2-40P |
Bitzer Semi-Hermetic Compact Screw Compressor
Bitzer semi-hermetic compact screw compressors are designed for applications requiring temperatures above zero, such as air conditioning systems, dehumidification, and chemical processes. These compressors feature a compact design that allows for installation in constrained spaces while delivering the necessary pressure and temperatures for various air conditioning and industrial processes. Their robust performance under high pressure and temperature conditions makes them suitable for demanding environments.
– Suitable for use with DX and gravity evaporators
– Excellent performance and efficiency across a wide temperature range
– Superior performance in both full load and seasonal efficiency modes
– Equipped with an external frequency inverter and compatible with variable speed drive technology
– Low maintenance costs due to a serviceable design
– Extended service life thanks to efficient bearings and low vibration design
– Compact design with integrated oil separator and gas-cooled motor housed within the compressor shell
Bitzer semi-hermetic compact screw compressors are distinguished by their internal oil separator, which is integral to their compact series designation. Refer to the table below for detailed specifications of Bitzer compact semi-hermetic screw compressors.
| Max power consumption | Max operating current | Pipe Connections | Weight(kg) | Oli Charge (dm3) | Displacement 50Hz (m3/h) | Compressor Type | |
| SL(inch) | DL(inch) | ||||||
| 34 | 56 | 1/8 2 | 5/8 1 | 317 | 9.5 | 137 | CSH6551-35 |
| 52 | 86 | 1/8 2 | 5/8 1 | 325 | 9.5 | 137 | CSH6551-50 |
| 41 | 65 | 1/8 2 | 5/8 1 | 317 | 9.5 | 170 | CSH6561-40 |
| 65 | 108 | 1/8 2 | 5/8 1 | 325 | 9.5 | 170 | CSH6561-60 |
| 52 | 79 | 1/8 3 | 1/8 2 | 505 | 15 | 197 | CSH755 -50 |
| 78 | 128 | 1/8 3 | 1/8 2 | 520 | 15 | 197 | CSH7551-70 |
| 65 | 98 | 1/8 3 | 1/8 2 | 515 | 15 | 227 | CSH7561-60 |
| 88 | 144 | 1/8 3 | 1/8 2 | 525 | 15 | 227 | CSH7561-80 |
| 78 | 124 | 1/8 3 | 1/8 2 | 520 | 15 | 258 | CSH7571-70 |
| 96 | 162 | 1/8 3 | 1/8 2 | 535 | 15 | 258 | CSH7571-90 |
| 88 | 144 | 1/8 3 | 1/8 2 | 530 | 15 | 295 | CSH7581-80Y |
| 96 | 162 | 1/8 3 | 1/8 2 | 535 | 15 | 336 | CSH7591-90Y |
| 88 | 144 | DN 100 | 1/8 3 | 840 | 22 | 315 | CSH8551-80 |
| 110 | 180 | DN 100 | 1/8 3 | 850 | 22 | 315 | CSH8551-110 |
| 96 | 155 | DN 100 | 1/8 3 | 840 | 22 | 359 | CSH8561-90 |
| 132 | 216 | DN 100 | 1/8 3 | 860 | 22 | 359 | CSH8561-125 |
| 110 | 182 | DN 100 | 1/8 3 | 850 | 22 | 410 | CSH8571-110 |
| 150 | 246 | DN 100 | 1/8 3 | 870 | 22 | 410 | CSH8571-140 |
| 120 | 196 | DN 100 | 1/8 3 | 860 | 19 | 470 | CSH8581-125 |
Bitzer Semi-Hermetic Screw Compressor
Bitzer semi-hermetic screw compressors are engineered to achieve temperatures both above and below zero (down to at least -45 degrees Celsius). Widely employed in large-scale commercial and industrial refrigeration systems, chemical processes, and refrigeration aboard fishing vessels, these compressors excel in applications like freezing tunnels, IQF processes, cold rooms, and ice makers. Their capability to maintain precise pressures and temperatures under demanding conditions makes them ideal for industries requiring stable performance, such as cryogenic processes and food preservation.
– Excellent performance across a wide temperature range
– Very high efficiency in medium and full load modes
– Equipped with a discharge check valve for efficient operation
– Easily paralleled to enhance capacity by combining multiple compressors
Bitzer semi-hermetic screw compressors offer a displacement volume ranging from 84 to 1050 cubic meters per hour, expandable up to 4060 cubic meters per hour through parallel operation of multiple units. Detailed specifications can be found in Bitzer’s semi-hermetic screw compressor specification table.
| Pipe Connections | Weight(kg) | Allowed speed range min-1 | Displacement at 3500 min1- (m3/h) | Displacement at 2900 min1- (m3/h) | Compressor Type | |
| SL(inch) | DL(inch) | |||||
| DN 100 | 1/8 3 | 330 | 4000 ... 1450 | 380 | 315 | OSK8551-K |
| DN 100 | 1/8 3 | 340 | 433 | 359 | OSK8561-K | |
| DN 100 | 1/8 3 | 350 | 495 | 410 | OSK8571-K | |
| DN 100 | 1/8 3 | 350 | 495 | 410 | OSN8571-K | |
| DN 100 | 1/8 3 | 360 | 567 | 470 | OSK8581-K | |
| DN 100 | 1/8 3 | 360 | 640 | 535 | OSN8581-K | |
| DN 100 | 1/8 3 | 360 | 640 | 535 | OSN8591-K | |
Bitzer Open-Type Screw Compressor
Bitzer open-type screw compressors are engineered to achieve temperatures both above and below zero (down to at least -50 degrees Celsius). These compressors find application in large-scale commercial and industrial refrigeration systems, chemical processes, and marine refrigeration aboard vessels such as freezing tunnels, IQF processes, cold rooms, and ice makers. A notable feature of these compressors is their compatibility with ammonia refrigerant, which enhances their suitability for systems utilizing this type of refrigerant, ensuring optimal performance and efficiency.
– Integrated oil management system: includes automatic oil stop valve, oil filter, and control of oil flow and filter status
– Compatible with various refrigerants including R134a, R404A, R507A, R407C, R22, and Ammonia (R717)
– Coupling housing design facilitates easy installation with shaft flange and direct motor installation
– High efficiency with optimal economizer performance for increased energy efficiency
– Startup mode available in unloaded condition
– High-quality mechanical seal shaft ensures durability and longevity
Bitzer open-type screw compressors feature a step and linear capacity control system that adjusts to meet the required refrigeration load. Detailed technical specifications can be found in the table outlining Bitzer open-type screw compressor specifications.
| Max power consumption | Max operating current | Pipe Connections | Weight(kg) | Displacement 50Hz (m3/h) | Compressor Type | |
| SL(inch) | DL(inch) | |||||
| 88 | 144 | DN 100 | 1/8 3 | 550 | 315 | HSK8551-80 |
| 110 | 180 | DN 100 | 1/8 3 | 565 | 315 | HSK8551-110 |
| 96 | 155 | DN 100 | 1/8 3 | 560 | 359 | HSK8561-90 |
| 130 | 216 | DN 100 | 1/8 3 | 575 | 359 | HSK8561-125 |
| 110 | 182 | DN 100 | 1/8 3 | 665 | 410 | HSK8571-110 |
| 150 | 246 | DN 100 | 1/8 3 | 580 | 410 | HSK8571-140 |
| 130 | 216 | DN 100 | 1/8 3 | 575 | 410 | HSN8571-125 |
| 170 | 260 | DN 100 | 1/8 3 | 605 | 535 | HSN8591-160 |
Atlas Refrigeration Company is a trusted distributor of Bitzer products in Iran, offering competitive prices and prompt nationwide delivery.
For procurement of products like OSKA, OSNA, and OSHA series of open-type screw compressors tailored for Bitzer’s ammonia refrigerant, as well as spare parts not readily accessible in the Iranian market for Bitzer screw compressors, please get in touch with us.
Special orders from Bitzer are accommodated by Atlas Refrigeration Company, ensuring rapid delivery directly from Bitzer or its authorized global representatives.
Bitzer Compressor Troubleshooting and Technical Documents
Access a comprehensive collection of Bitzer compressor technical documents in PDF format available for download below. These documents offer detailed insights into Bitzer compressors, including specifications, features, and applications. They are invaluable resources for engineers, technicians, and industry professionals seeking to integrate Bitzer compressors effectively into refrigeration and air conditioning systems. Whether you need product catalogs, technical manuals, installation guides, or performance data, these documents provide essential information to support informed decision-making.
Bitzer Compressor Pricing
For information on the pricing of Bitzer compressors, please reach out to the sales experts at Atlas Refrigeration Company during business hours.
Ordering and Purchasing a Bitzer Compressor
To purchase a Bitzer compressor, it’s essential to have the model number, technical specifications, operating temperature range, and power requirements in mind beforehand. Determining the appropriate compressor power should ideally be done by experienced professionals based on the thermal load of your system. Our experts can assist you by asking relevant questions to estimate and advise on the required compressor power. For immediate delivery and further inquiries about purchasing a Bitzer compressor, please feel free to contact us.
Atlas Refrigeration Company Services
Atlas Refrigeration Company is your trusted supplier of Bitzer products in Iran, offering competitive prices and immediate delivery across the country. We specialize in supplying open-type screw compressors suitable for Bitzer’s ammonia refrigerant from the OSKA, OSNA, and OSHA series. For inquiries or to place an order, please contact us directly. Additionally, when you choose Atlas Refrigeration Company for installation and operation of your Bitzer compressor, you’ll benefit from our comprehensive one-year warranty.
Bitzer compressors stand out from other brands due to their extensive range of piston (semi-hermetic and open-type) and screw (semi-hermetic and open-type) compressors, which cater to diverse requirements in refrigeration and air conditioning systems. Renowned for their robust manufacturing quality, Bitzer compressors ensure reliable performance and durability across various applications.
Bitzer compressors are produced in two types, semi-hermetic and open type, in which freon gases such as R-22, R-134a, R-404a, etc. can be used in the semi-hermetic models. In open-type models, in addition to Freon refrigerants, it is also possible to use R-717 ammonia refrigerant.
Related posts
Bitzer Compressor
Refrigeration Compressors from Leading American, European, and Asian Brands Refrigeration compressors are essential components of cold room systems, available in
Refcamp compressor Refcamp was founded in 1991 as a refrigeration compressor manufacturer in Italy. Refcamp’s production facilities are equipped with
Danfoss Compressors: A Legacy of Excellence The renowned Danfoss compressors, originally pioneered by Maneurop, have been at the forefront of
What Is Ammonia Screw Compressor? An ammonia screw compressor is a type of compressor used in industrial refrigeration systems to