Compressors, Oil Free Piston Laboratory Model 320, Model 420 and the Model 440 Air Supply System
Overview
The Rocker 320, Rocker 420 and Rocker 440 oil free air compressors use piston pumps that require no lubricant, regular oil changes or other routine maintenance. The oil free design means that no oil mist pollution is added to the air. An output filter traps moisture and filters particles.
A direct drive motor eliminates the noise and complications of a belt drive and together with careful vibration lowering assembly results in a low 50.0 or 52.0 dB noise level.
The Rocker Model 440 Air Supply System has a built in stainless steel 2.5 liter air tank and uses quick coupling fittings.
Whatever the laboratory application, be it aeration, pressure filtration, supplying a bioreactor or a gas chromatograph, the Rocker oil free compressors are ready to give dependable long term service.
Features of the Rocker 320, Rocker 420 and Rocker 440 Oil Free Compressors:
No oil pollution in the air
Piston pumps need no lubricant, regular oil changes or other routine maintenance
Direct drive motor with no transmission means lower noise
Thermal protection in case of overheating
Equipped with moisture trap in air outlet to filter particles and moisture
Model 440 has a built in 2.5 liter air tank
Specifications (Click here):
Compressors, Oil Free Piston Laboratory Model 320, Model 420 and the Model 440 Air Supply System
Specifications
Model:
Rocker 320
Rocker 420
Rocker 440
Maximum power: (W)
90
147
147
Maximum current: (A)
0.9
1.5
1.5
Maximum pressure: (psi)
80
80
-
Maximum pressure with no moisture trap: (psi)
100
100
-
Pressure range: (psi)
-
-
40 – 60, 60 – 80 optional
Motor rotation: (rpm)
1700
1700
1700
Maximum flow rate: (L/min)
14
27
-
Maximum flow rate without air tank: (L/min)
-
-
27
Maximum flow rate with 2.5L air tank, at 20 psi, 0-15 seconds, after 25 seconds: (L/min, L/min)
-
-
40, 27
Maximum flow rate with 2.5L air tank, at 40 psi, 0-15 seconds, after 25 seconds: (L/min, L/min)
-
-
52, 27
Maximum flow rate with 2.5L air tank, at 60 psi, 0-15 seconds, after 25 seconds: (L/min, L/min)
-
-
65, 27
Noise level: (dB)
50.0
52.0
50.0
Horse power: (HP)
1/8
1/6
1/6
Port thread: (inch, mm)
5/16, 8
5/16, 8
Quick coupling
Power: (V,Hz)
110, 60
110, 60
110, 60
Dimensions: W×D×H (mm)
272×136×165
298×143×172
293×311×251
Weight: (kg)
4.1
5.2
5.2
Number
Description
Price $
167320-11(22)
Rocker 320 Oil Free Piston Air Compressor, 110V, 60 Hz
880.00
167420-11(22)
Rocker 420 Oil Free Piston Air Compressor, 110V, 60 Hz
1,160.00
167440-11(22)
Rocker 440 Oil Free Piston Compressor Air Supply System with 2.5 liter stainless steel air tank, 110V, 60 Hz
