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Blast Freezer Bitzer Screw Compressor Rack with PLC controller

Shandong Ourfuture Energy Technology Co., Ltd.
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Shandong Ourfuture Energy Technology Co., Ltd.
Country/Region: China
Tel: 86-531-86550406
Contact Person:
Mr Mike

Blast Freezer Bitzer Screw Compressor Rack with PLC controller

Brand Name : Ourfuture
Model Number : OBBL4-20M
Certification : CE, 3C, ISO9001:2008
Place of Origin : China
MOQ : 1 unit
Supply Ability : 60 units per months on average
Delivery Time : 10~15 days
Packaging Details : plastic film with plywood case
Compressor brand : Bitzer, Carlyle, Danfoss, Copeland, Bock, Hanbell, Fusheng, etc.
Refrigerant : R404a, R22
Voltage : 380V/3P/50Hz, 220V/1P/60Hz
Evaporating Temperature : 10~-15℃, -15~-35℃, -30~-50℃
Condensing Temperature : 35℃, 40℃
Use : Cold room, blast freezer, cold chain logistic, pharacy, refrigeration
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Blast Freezer Bitzer Screw Compressor Rack with PLC controller

High Temperature Parallel Screw Compressor Unit

Ourfuture compressor rack include:

Electrical switchgear, Screw type compressor, Exhaust temperature protection, Motor protection, Oil level

switch, Liquid spray connector, Suction stop valve, Exhaust stop valve, External oil separator, Horizontal

rotary valve, Oil heater, Oil temperature controller, Photoelectric level switch, Oil filter, Oil circuit ball valve,

Oil line sight glass, Oil line solenoid valve, Liquid spray ball valve, Liquid spray solenoid valve, Liquid spray

filter, Liquid spray sight glass, Liquid feeding sight glass, High/low pressure controller, Pressure sensor,

reservoir, Safety valve, Liquid drop off valve, Liquid outlet stop valve, Total feed valve, Total suction stop

valve, Total exhaust non-return stop valve, Liquid filter barrel, Suction filter barrel, Oil filter barrel, Angle

valve, Exhaust pipe, Oil high/low pressure gauge, Pressure gauge connection hose, Oil filter core, Liquid

feeding filter core, Suction filter core, Pressure gauge board, etc.

Wide Range of Options

Compressor Unit

Refrigeration Capacity

Evaporating temperature

Piston type single-stage parallel unit



Piston type Two-stage parallel unit



Screw type single stage parallel unit



Screw type double-stage parallel unit



Adopted to multiple refrigerant R404a, R507, R407C, R22.

Stable & Reliable Performance

The units are equipped with world famous brand high quality compressor and components,

following the latest design, the perfect combination provides a safe and reliable system.

The unit comes standard with a controller that can effectively avoid turning on/off the motor

frequently as well as safety protection modules including the following: Phase loss protector,

Inverted sequence, overvoltage protector, undervoltage protector, oil pressure, high pressure,

low pressure, motor overload.

High efficiency oil separating system. When power is on, there is no need to add lubricating oil,

the standard provided oil heater (for screw unit), oil temperature controller (for screw unit) and

oil level switch (for screw unit), etc. can protect the function.

The PLC controller is a standard provided component. It can automatically decide the compressor

quantity to be used based on actual need of refrigerant capacity, average the running time

between each compressor, save the power. All of these will guarantee an over 30% longer

usage than single compressor condensing unit.

It has a unique low environment condensing pressure monitor system which guarantees a stable

functioning when there is a low ambient temperature, lack of oil feeding or oil flow warnin

High efficiency gas liquid separator is used, with a unique pipeline design, it can effectively

minimize the possibility of liquid strike.

The “Pressure Vessel Certificate” approved reservoir is provided as well as the safety relief valve.

Fault isolation device is served so that when a certain compressor breaks down, the rest of the

unit can keep running appropriately, making sure that client has enough time for repair and


High efficiency & energy saving

Because of a huge demand difference between seasons for refrigerating capacity, the unit must

have a high level control for capacity, so that the unit can keep running under high efficiency

mode. The average parallel unit efficiency, according to different refrigeration system is 30%

higher than single compressor unit.

Using multiple compressor parallel units can provide a multiple energy level control, the

refrigeration output can be dynamically allocated more smoothly according to actual situation.

With high efficiency oil separator, only a small amount of lubricating oil enters the system,

this largely brings up the heat exchanging efficiency.

The PLC controller monitors running compressors quantity, it maintains a maximum use rate

even when only parts of the compressors are functioning.

PLC controller can be set with the best running curve (maximum & minimum power comsuption),

to same as much electricity as possible.

With “modularized design” the risk during construction can be largely reduced, construction

period can be shortened, improve the product quality controllability.

Compact & Nimble Structure

Components such as compressor, reservoir, gas-liquid separator, oil separator, economizer,

intake manifold, fluid supply manifold, electrical control equipment are all centralized, making

sure every inch of the space is fully used.

The unit has a compact structure, the space saved during assembly can provide more space for

commercial use, benefiting the end user with extra profit.

Easy operation & convenience

With PLC safety auto control, client can program with touch screen, the graphical control

interface can intently show the running status, recording data, parameter settings and false

alarming, easy for operation.

The reserved remote communication interface can help customer to monitor remotely.

Thanks to the print output interface, customer can print the running history data of the unit and

the system.

Product Tags:

refrigeration racks


parallel compressor system

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