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Oil-free screw compressor 2-stage DSP-NEXTⅢ series 132~240kW Class water-cooled inverter machine-DSP-160VW5N3
Oil-free screw compressor 2-stage DSP-NEXTⅢ series 132~240kW Class water-cooled inverter machine-Fuji Electrode Industry Co., Ltd.

Oil-free screw compressor 2-stage DSP-NEXTⅢ series 132~240kW Class water-cooled inverter machine
Fuji Electrode Industry Co., Ltd.

Fuji Electrode Industry Co., Ltd.'s Response Status

Response Rate

100.0%

Response Time

6.9hours

Fast Response


About This Product

■Stainless steel fine rotor

The rotor, which is processed with high-precision tooth surface grinding, is made of special stainless steel with excellent corrosion resistance and durability. Furthermore, to reduce internal leakage, we have applied a mirror finish that takes into account thermal expansion during operation to ensure optimal clearance.

■High performance rotor profile

The rotor, which is exposed to discharge temperatures of over 300℃ in a single-stage machine and over 200℃ in a two-stage machine, undergoes significant thermal expansion. Hitachi's unique three-dimensional correction technology is applied to anticipate this thermal expansion and ensure the optimal clearance during operation.

■High performance solid lubricant coating

The rotor is coated with a solid lubricant coating to further reduce the gap between metals and improve performance. This solid lubricant film has sufficient performance even in harsh environments exceeding 300℃, and Hitachi's unique technology is applied.

■Shaft seal to prevent oil leakage

Visco Seal, designed by Hitachi for oil-free screw compressors, actively pumps oil back out with internal spiral grooves. A combination of air seal and visco seal prevents oil from entering the compression chamber.

■Bearings, timing gears

The bearings are dedicated ball bearings and roller bearings, and jet lubrication is used for lubrication. In addition, the precisely finished timing gear ensures optimal rotor clearance.

■ Constant pressure control supplies the required amount of air at the required pressure.

Highly accurate constant pressure control with a pressure fluctuation range of ±0.01MPa or less is possible, so air at the optimum pressure required for the machine in use can be efficiently supplied. Additionally, the set pressure can be set in 0.01MPa increments, resulting in significant energy savings.

■Achieve energy savings with variable speed + unique intermediate stage air release control

During unloading (no load), in addition to releasing air from the high-pressure stage, air is also released from the intermediate stage to reduce power during unloading and ensure stable shaft seal reliability. Additionally, since there is no unloader, maintenance of the unloader (suction throttle valve) is not required.

■Peak cut function standard equipment

By turning on the peak cut function, the maximum rotation speed of the compressor will be lower than the set value, making it possible to keep the power consumption of the compressor low.

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    Oil-free screw compressor 2-stage DSP-NEXTⅢ series 132~240kW Class water-cooled inverter machine

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1 Models of Oil-free screw compressor 2-stage DSP-NEXTⅢ series 132~240kW Class water-cooled inverter machine

Image Part Number Price (excluding tax) Noise level (front 1.5m) (dB (A) ) Drive method Power supply voltage (50/60Hz) (V) Lubricating oil filling amount (L) Approximate mass (kg) Starting method External dimensions (width x depth x height) (mm) Suction pressure/temperature (℃) Discharge pipe diameter (B) Discharge air volume (㎥/min) Discharge air temperature (℃) Discharge pressure (MPa) Cooling water amount (L/min) Cooling water pipe diameter (B) Cooling water temperature (℃) Nominal output (kW) Main motor model Fan motor output (kW)
Oil-free screw compressor 2-stage DSP-NEXTⅢ series 132~240kW Class water-cooled inverter machine-Part Number-DSP-160VW5N3

DSP-160VW5N3

Available upon quote

70

Motor direct connection + gear speed increase

400/440

40 (unfilled)

3,960

Inverter

2,500×1,600×1,925

Atmospheric pressure/0~45

2・1/2 (flange)

28.5, 24.8, 23.2

Cooling water temperature +13 or less

0.75, 0.93, 1.0

240

2

35 or less

160

4-pole fully enclosed external fan flange motor

0.4

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About Company Handling This Product

Response Rate

100.0%


Response Time

6.9hrs


Company Review

5.0
  • Japan

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