This series is currently the largest of the Knox Western compressors built in both two-throw and four-throw models in 3” and 4-1/2” strokes with a frame load rating of 30,000 pounds Tension and Compression.
Number of throws
4
Horsepower
1,350
RPM (min - max)
1,800
Frame lubrication
-
Stroke
3
Piston speed (fpm)
900
Crankshaft Centerline (inches)
13
Overall length, (max.) (inches)
140
Overall length, (max.) (inches)
84
Approx. weight (frame only) (lbs)
6,500
Rod Loads, (tension) (lbs)
30,000
Rod Loads, (compression) (lbs)
30,000
Rod Loads, (combined) (lbs)
60,000
Oil pump capacity (gpm)
55
Crankcase oil capacity (gal)
-
Oil Pressure (min - max) (psig)
-
Crankpin diameter (in)
5.250
Main bearing diameter (in)
9.84
Piston rod diameter (in)
2.5
Number of throws
4
Horsepower
1,400
RPM (min - max)
1,200
Frame lubrication
-
Stroke
4.5
Piston speed (fpm)
900
Crankshaft Centerline (inches)
13
Overall length, (max.) (inches)
140
Overall length, (max.) (inches)
84
Approx. weight (frame only) (lbs)
6,500
Rod Loads, (tension) (lbs)
30,000
Rod Loads, (compression) (lbs)
30,000
Rod Loads, (combined) (lbs)
60,000
Oil pump capacity (gpm)
55
Crankcase oil capacity (gal)
-
Oil Pressure (min - max) (psig)
-
Crankpin diameter (in)
5.250
Main bearing diameter (in)
9.84
Piston rod diameter (in)
2.5
COMPONENT
MATERIAL
Crankcase
Grey iron
Bearing housing
-
Flywheel
-
Crankshaft
Ductile iron
Main bearings
Double row spherical roller
Connecting rods
Ductile iron Class 60/40/18
Wrist pin
-
Wrist pin bearings
-
Crossheads
Ductile iron 60/40/18 babbitt faced
Crossheads guides
Grey iron
Piston rods (rolled threads)
Alloy steel AISI 4140
Cylinders, low pressure
STL / DI
Cylinders, medium pressure
STL / DI
Cylinders, high pressure
STL / DI
Pressure packing
-
Pistons, low pressure
STL / Grey CI / AL
Pistons, medium pressure
STL / Grey CI / AL
Pistons, high pressure
STL / Grey CI / AL
Valve seats and guards
Carbon steel
Valve springs
-
Note specific TFE blend to be determined per application. Our management system of standards is designed and reinforced to assure the quality of all operations and processes. Our continuous improvements apply to both quality and environmental requirements.
The Eagle series is a mid range line of compressors, designed to be coupled with today’s high speed drivers. Rod load ratings to 60,000 pounds combined with MAWP to 7200 PSIG give this series of compressors the flexibility to by applied in a variety of services.
Eagle series frame is available in both 2 and 4 throw configurations and the heavy duty frames are designed with internal and external ribbing. Full pressure lubrication to the frame running gear is accomplished by a crank mounted oil pump. Single piece babbit-faced crossheads have full pressure lubrication top and bottom assuring minimal wear and long life.
