Oil-free screw compressor single stage DSP-NEXTⅢ series 22~55kW
Fuji Electrode Industry Co., Ltd.
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.
■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.
■Ensuring reliability at high temperatures All models are specified at a temperature of 45℃ (can be operated up to 50℃)
With a new unit structure that keeps the compressor's internal temperature rise to a minimum, the NEXT series has achieved both continuous operation at an ambient temperature of 45°C and long maintenance cycles. The NEXTⅢ series can operate without abnormal stop even at 50℃.
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Product
Oil-free screw compressor single stage DSP-NEXTⅢ series 22~55kW
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Handling Company
Fuji Electrode Industry Co., Ltd.
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Categories
1 Models of Oil-free screw compressor single stage DSP-NEXTⅢ series 22~55kW
| Product Image | Part Number | Price (excluding tax) | Approximate mass (kg) | Cooling water amount (L/min) | Cooling water pipe diameter (B) | Cooling water temperature (℃) | Discharge air temperature (℃) | Discharge air volume (㎥/min) | Discharge pipe diameter (B) | Discharge pressure (MPa) | Drive method | External dimensions (width x depth x height) (mm) | Fan motor output (kW) | Lubricating oil filling amount (L) | Main motor model | Noise level (front 1.5m) (dB (A) ) | Nominal output (kW) | PQ wide mode operating range (MPa) | Power supply voltage (50/60Hz) (V) | Starting method | Suction pressure/temperature (℃) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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DSP-37VWN3 |
Available upon quote | 1,110 | 80 | Rc1 | 35 or less | Cooling water temperature +13 or less | 5.0, 6.7 | Rc1-1/2 | 0.7, 0.3 | Belt hook + gear speed increase | 1,830×980×1,580 | 0.2 | 14 (unfilled) | 4-pole fully enclosed external fan type | 6466 | 37 | 0.4~0.7 | 200/200・220 | Inverter | Atmospheric pressure/0~45 |
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