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High quality screw air compressor two-stage compression for industry for sand blasting

High quality screw air compressor two-stage compression for industry for sand blasting

Brand Name:ROYAL
Certification:CE
Minimum Order Quantity:1unit
Delivery Time:20days
Payment Terms:L/C, T/T, Western Union
Place of Origin:CHINA
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Location: Shanghai Shanghai China
Address: No.1661 Jialuo road, Shengchuang Technology Park, jiading district, shanghai, China.
Supplier`s last login times: within 29 hours
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Product Details Company Profile
Product Details

Advantages of two-stage screw air compressors:

∎This latest generation of energy efficient air compressors
can SAVE 15 – 20% on your power bills.Our ground-breaking range
of DD Series ‘2 Stage’ rotary screw air compressors offer outstanding
energy savings when compared to conventional single-stage compressors.
∎Our extensive range covers capacities from 15.8m³/min@6bar (55kW) up to
65m³/min@8bar (315kW) and with pressures ranging up to 13 barg.
∎This is by far the widest range of two-stage rotary screw air
compressors available!

How two-stage screw air compressor saveing energy:

Sample compressor 250kw 2-stage:
∎Air capacity: 250kw single stage compressor 40m3/min @8bar;
while 250kw two-stage compressor 50m3/min @8bar.
∎Power consumption: single stage compressor 250kw + 75kw can make
50m3/min @8bar, so that 250kw two-stage compressor can save power 75kw,
and one compressor can work for many years,75kw will save quite a lot.
∎Electric motor and inverter, 250kw two-stage compressor, with permanent
magnet motor, it's high frequency 150hz, it work quite good when compressor
not work at full load, and normally compressors will not work at full load all the
time, this way, permanent magnent motor will make no extra consumption as
fixed speed motors.
Price, 250kw two-stage PM & VSD compressor,
it's price is less than 250kw+75kw single stage
VSD compressors, while make 50m3/min @8bar.

  • Big air capacity 2-stage screw air end
  • IP55 electric motor

Full detail technical parameters:

MODEL No.Air flow (m3/min)Power(KW)Noise(Db)Outlet sizeDimension(mm)Weight(KG)
0.6Mpa0.7Mpa0.8Mpa1.0MpaLengthWidthHeight
DDM-224.84.64.53.82268G11/4"148411261578840
DDM-307.46.636.54.53068G11/4"1630121416601050
DDM-3787.657.56.03768G11/4"1630121416601050
DDM-4511.210.510.37.34570G2"1834129018101353
DDM-5515.813.612.39.55570G2"2300130018301534
DDM-7516.51615.512.87572G2"2300130018301700
DDM-902120.719.5159072DN652400163019802080
DDM-11025.524.82419.311072DN652400163019802120
DDM-1323029282313278DN802800182821504850
DDM-160353433.527.516078DN802800182821505000
DDM-18540393832.518578DN1003000190019305900
DDM-200444342.53720078DN1003000190019306200
DDM-22052.351.5474222080DN1253860213023808500
DDM-25055.3545145.525080DN1253860213023808650

More detail photos of our 2-stage screw air compressors:


Our Services

Long interval maintenance periods:

Nearly ideal isothermal compression, direct driven method, smart configuration and precision component design and machining, long bearing service life, all of the above essentially extends interval between regular periodical maintenance.


Company Information

Shanghai Royal Machinery Co.,Ltd is a high-tech enterprise which specialized in sales and service of compressed air system equipment, and after-treatment equipment, booster compressor, diesel generator and drying equipment, etc.


We have an experienced team. It not only provide high-quality and high-efficiency compressors for users but also provide the best solution for air system equipment during before-sale, selling and after-sale.


Welcome to contact us for inquires and quotation.


Packaging & Shipping

All of our screw air compressors are packed by export standard plywood case:


Because of screw air compressor package volume and weight, most of our screw air compressors are shipped by sea.


Wecome to contact us for more details, we will offer compressor details, oil free screw air compressor use manual, oil free screw air compressor configuration list, oil free screw air compressor instruction drawings, spare parts list, installation drawings, technical support and maintenance training.

China High quality screw air compressor two-stage compression for industry for sand blasting supplier

High quality screw air compressor two-stage compression for industry for sand blasting

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