Holtec HOB Series Oxygen Generator

Holtec HOB Series Oxygen Generators are engineered to deliver high-purity oxygen at your own facility, eliminating the risks, costs, and delays of bulk supply. Built in North America to The American Society of Mechanical Engineers (ASME) standards, these systems offer scalable performance, advanced controls, and long-term reliability. Whether you're operating in biogas, mining, aquaculture, water treatment, or manufacturing, Holtec delivers the on-site oxygen generation when and where you need it.

On-Site Oxygen Generation for Industrial Efficiency and Safety

• 120V – 1ph – 50/60 Hz power compatibility

• ASME VIII Div 1 adsorbers for proven pressure vessel integrity

• 20-year design life adsorbers for long-term reliability

• 5 million cycle switching valves for extended service life

• 7” full-color HMI with PLC for intuitive system control

• Automatic standby mode based on user-defined pressure setpoints

• UL-listed control panel with integrated oxygen analyzer

Model	90% Purity O2 SCFM (70ºF)	93% Purity O2 SCFM (70ºF)	95% Purity O2 SCFM (70ºF)	Inlet Air	Outlet O2 to Buffer Tank	Inlet O2 Flow Control	Outlet Oxygen to User	Length (inches)	Width (inches)	Height (inches)	Weight (lbs)
HOBS-30	1.3	1.3	1.2	¾	½	½	½	35	26	81.5	711
HOBS-40	1.7	1.7	1.5	¾	½	½	½	35	26	101.5	751
HOBS-50	2.2	2.2	2	¾	½	½	½	35	26	81.5	1004
HOBS-60	2.7	2.7	2.5	¾	½	½	½	35	26	97.5	1021
HOBS-75	3.4	3.3	3.1	¾	½	½	½	35	30	81.5	1085
HOBS-90	4.1	4	3.7	¾	½	½	½	35	30	101.5	1225
HOBS-110	4.8	4.7	4.3	1	¾	½	½	35	30	81.5	1327
HOBS-125	5.6	5.5	5.1	1	¾	½	½	35	30	92.5	1485
HOBS-145	6.2	6.1	5.7	1	¾	½	½	35	37	90	1547
HOBS-165	7.3	7.2	6.7	1	¾	½	½	35	37	97.5	1685
HOBS-195	8.6	8.4	7.8	1	¾	½	½	35	39	91.5	1916
HOBS-220	9.7	9.6	8.8	1	¾	½	½	35	39	100.5	2099

Notes:
1.      Height and Weight are estimates
2.      Electrical Requirements: 120V / 1PH / 60Hz
3.      Consult factory for performance at other temperatures, pressures, & purities
4.      Printed Copies are not revision controlled

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