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D-Series

OLD-Series

Oil-free reciprocating air compressor

Introduction | Features | Product lineup | Specifications

IntroductionOLD-Series cutaway

Oil-free compressed air is vital to the industry, especially in production processes where product quality must not be contaminated by oil. Applications of the oil free air are found in the textile, food and beverages, chemicals, electronics, pharmaceutical and other process industries.

Even when its application is not critical to product quality, oil free air can improve the process and help your company keep required productivity levels. At Fu Sheng, we understand your requirements for compressed air and have what you need.

Features 

 

Cylinder

The inside surface of the cylinder is coated with chromium and machined with numerical control (NC) machining centers, resulting in a long service life.

The heat generated during the compression process is completely removed by the large water cooling ducts, thus increasing the service life of the compressor.

Piston, Piston Rod, Compression Ring, Guide Ring

Pistons are made of aluminum to reduce weight. The piston rod is coated with chromium to increase its service life. Self-lubricating compression rings and guide rings from U.K. are designed to resist wear and high temperature.

Crankshaft, Crankshaft Pin Metal, Bearings

Made of high strength forged alloy steel, the crankshaft can operate under extreme heavy duty. Through hardening process, the crankshaft journal is made with high degree of wear resistance. The precise calculation of crankshaft minimizes the vibration of the compressor. Bearings have been designed for operation under heavy duty conditions. The Babbitt pin metal is good at wear resistance.

Intercooler

Since cooling water goes through the tube side of the cooler, while compressed air goes through the shell side, it is easy to clean up the shell-tube type cooler. Stainless steel made shell and baffles will not rust to damage the compression rings and cylinder. Copper tubes have been proved of high cooling efficiency. Therefore the discharge temperature can be reduced from 170șC to 40șC.

Cylinder Head

Due to the large cooling area of cylinder head, the temperature of inlet and outlet valves can be kept low. Thus the service life increases.

Inlet and Outlet Valves

Receivers and seats of inlet and outlet valves made of stainless alloy steel thru lost wax casting method will not rust. This is important because rust can cause the surface of cylinder, compression rings or guide rings to be damaged. The material of the valve plate comes from ASSAB Sweden which provides the feature of high temperature resistance.

Piston Rod Wiper Assembly, Scrape Ring Assembly

The teflon made self-lubricated wipers from U.K. can resist wear, chemical corrosion, and high temperature. Copper scrape rings can reliably prevent oil from splashing out of the crankcase.

Crosshead Pin, Crosshead, Crosshead Guide

Crosshead pin has been carbonized on the surface to increase its service life. Crosshead and crosshead guide are precisely processed to make sure that piston is perpendicular to crankshaft.

After Cooler

Cooling water run through the tube side of cooler, while compressed air passes through the shell side. Due to this feature, it is easy to clean up the shell-tube type cooler. Carbon steel shell as well as baffles and copper tubes lead to high cooling efficiency, reducing temperature from 180șC to 45șC.

OLD-Series Produdct Lineup (partial)

Single-stage

OLD1-250

OLD2-250
Two-stage

HOLD2-152

HOLD2-370

Specifications

Single-Stage Compressor Specifications
Model HP # Cyl. Piston Disp. Actual Air Delivery Working Pressure
m3/Min CFM m3/Min CFM kg/cm2G PSIG
OLD1-133 10 1 1.53 54 0.84 29.6 7 100
OLD1-152 15 1 2.56 90.2 1.3 46 7 100
OLD2-152 30 2 5.11 181 2.6 92.1 7 100
OLD1-250 50 1 9 318 5.2 183.7 7 100
OLD2-250 100 2 18 636 10.4 367.5 7 100
Note:
1. For other working pressures, please contact us.

Single-Stage Compressor Dimensions
Model Air Receiver Height Length Depth Weight
liter gal mm in. mm in. mm in. kg lbs.
OLD1-133 304 80.3 2,100 82.7 2,030 79.9 880 34.6 622 1,371
OLD1-152 304 80.3 2,100 82.7 2,470 97.2 800 31.5 719 1,585
OLD2-152 660 174.4 1,964 77.3 2,940 115.7 1,340 52.8 1,152 2,540
OLD1-250 660 174.4 1,980 78.0 4,000 157.5 1,878 73.9 2,406 5,304
OLD2-250 1,300 343.4 2,300 90.6 4,740 186.6 1,800 70.9 4,373 9,641
Note:
1. Net weight includes air compressor, after cooler, intercooler, water separator and air receiver. Weight of motor is not included.
2. Please refer to dimension diagram.

Two-Stage Compressor Specifications
Model HP # Cyl. Piston Disp. Actual Air Delivery Working Pressure Air Receiver
m3/Min CFM m3/Min CFM kg/cm2G PSIG liter gal
HOLD2-152 30 L1 (H1) 2.3 80.9 1.63 57.6 10 140 304 80.3
HOLD2-300 100 L1 (H1) 13.9 491 11.56 408.5 7 100 1,300 343.4
HOLD2-370 150 L1 (H1) 20.62 728 16.5 582.9 7 100 2,283 603.1
HOLD4-370 300 L2 (H2) 41.24 1456 33 1165 7 100 2,880 760.8
HOLD2-300A 100 L1 (H1) 12.3 434 9.5 335.4 10 140 1,300 343.4
Note:
1. For other working pressures, please contact us.

Two-Stage Compressor Dimensions
Model Air Receiver Height Length Depth Weight
liter gal mm in. mm in. mm in. kg lbs.
HOLD2-152 304 80.3 2,100 82.7 2,743 108.0 1,550 61.0 1,152 2,540
HOLD2-300 1,300 343.4 2,300 90.6 5,760 226.8 2,360 92.9 5,250 11,574
HOLD2-370 2,283 603.1 2,880 113.4 6,330 249.2 3,697 145.6 8,100 17,857
HOLD4-370 2,880 760.8 3,460 136.2 7,600 299.2 3,700 145.7 12,000 26,455
HOLD2-300A 1,300 343.4 2,300 90.6 5,760 226.8 2,360 92.9 5,250 11,574
Note:
1. Net weight includes air compressor, after cooler, intercooler, water separator and air receiver. Weight of motor is not included.
2. Please refer to dimension diagram.

Booster Specifications
Model HP # Cyl. Piston Disp. Suction Pressure Working Pressure Actual Delivery (at 1 atm) Weight
m3/Min CFM kg/cm2G PSIG kg/cm2G PSIG m3/Min CFM kg lbs.
OLD2-152B 40 2 3.38 119 3.5 50 6 85 13.4 473.3 1,152 2,540
OLD1-250B 50 1 0.8 28.3 16 225 45 630 10.8 381.5 2,700 5,952
OLD2-250B 60 2 1.26 44.5 7.2 100 26 365 8.0 282.6 4,370 9,634
OLD1-250B 60 1 5.1 180 6 85 12 170 25.0 882.5 2,700 5,952
OLD1-250B 75 1 7.94 280 6 85 9 125 45.0 1,588.5 2,700 5,952
OLD2-250B 100 2 5.6 198 4 55 14 195 22.4 790.8 4,370 9,634
OLD2-300B 125 2 6.61 233 7 100 15 210 38.2 1,350.0 5,250 11,574
Note:
1. Net weight includes the compressor, after cooler and water separater. Weight of motor is not included.
2. For other suction and discharge pressure, or for actual delivery, please contact us.

Note: Fu Sheng has a policy of continuous product improvement and reserves the right to change specifications and designs without notice

Contact us? Please see our contacts page.
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