10 Year Pump Warranty With Annual Purchase of Maintenance Kit
75 HP 3 Phase Dual Volt (208/230/460/480) Rotary Screw Air Compressor
Model HT 402 Dryer, 3 Phase, 220V
660 Gallon Vertical Tank
T-350-DG Coalescing Filter, Auto Drain & Hydraulic Hoses
75HP Three Phase Dual Voltage
SCFM @ 100 PSI MAX 145
Air End Model
CANADIAN 380V AND 575V AVAILABLE AT ADDITIONAL COST
$600 Feature Included - Name Brand Motor - Low RPM 1750 RPM TEFC Electric Motor - Not 3450 High Speed - This Low 1750 RPM Will Increase Bearing Life- Faster Start Up Less Power In Start Up Procedure And Makes Entire Unit Much Quieter In Running Operation - All Cast Iron Frame - This Motor Is Standard NEMA Frame That Can Be Replaced Locally If Needed After Warranty Period - It Is Not A Special Hard To Find Motor Type - UL/ CSA Approved.
Name Brand Rotary Screw German Built Air Compressor Pump - This Rotary Screw Pump Has Been Made Since 1953- We Have These In Service In All 50 States
Name Brand Electrical Componets - UL/CSA Approval With Approval Code Numbers - Square D/ TEL - These Can Be Purchased Locally And Not A No Name Brand - No Name Brands Can Be Hard To Find Locally
$400 Feature Included - ASME Code Air/Oil Separator Tank With ASME Code Saftey Valve - Many Brands Do Not Have This Code Which Is Not Legal In Many States, Especially California
$400 Feature Included - Single Bar Oil Cooler/Air Cooled After Cooler - This Makes It Easy Maintenace When Cleaning Your Coolers - Top Air exhaust Air Flow
$1400 Option Included - User Friendly, Larger Metal Cabinet For Plenty Of Room When Maintenancing Machine - Not Small Compact Design - Compact Design Is Much Cheaper To Build - Compact Design Is Much Harder To Work On When Maintenacing And Will Cause Higher Maintenance Cost - With Ribbed Sound Proof Material - Ribbed Sound Proof Material Will Absorb More Sound Than A Straight Flat Insulation
$800 Option Included - Online/Offline And Regulator Modulation Control - Online/Offline Is A More Expensive option Included - This Will Allow On/Offline Air Demand For Lower Duty Cycles For High Duty Cycles This Will Maintain A Constant Pressure Instead of Increasing With a 20 or 30 Pound Differential - This Will Save Huge On Electric Cost - Under High Demands Running a Constant Pressure Is Better For Energy Consumpstion - Many Units Do Not Have This, They Are Straight Online/Offline And You Do Not Get The Benefit Of This Option
$1500 Option Included - Programmable Controller - UL Approved With Many Features Listed Below
$1500 Option Included -Direct Driven - No Belts To Maintain
This is our Eaton Compressor TRUE 75 HP, 3-PHASE twin screw compressor. We have 31 Years experience in the air compressor industry and in providing QUALITY air compressors. Power supply is 208/220/460V, 3-Phase – must specify when ordering what voltage is needed. BUYER BEWARE - You will see many rotary screws on the market claiming a high CFM and over rating their machine so the customer thinks they are getting more than they really are. The customer is very vulnerable and has no way of knowing the CFM they are claiming is true or not. The best way for you as the customer to compare units from different manufacturers is to get the pump-up time in writing from 0-145 PSI on a 120-gallon tank. By getting the pump-up time from 0-145 PSI on a 120-gallon tank you can compare the pump-up times to our Eaton Unit and if the CFM that they are claiming is much higher than ours, their pump-up time should be much faster. For example, you see Rotary Screw companies (smaller names) claiming 400 CFM on a 75 HP unit. This is not true. All rotary screws are in the 1% +/- what our CFM is on our screw. It takes so much brake HP on a screw per HP to make the CFM and when you see screw companies of different names claiming a higher CFM per brake HP, the customer is getting cheated. With Eaton Compressor, you can count on our CFM's to be exact and true - WE PUT THEM IN WRITING. If you look at the brand name compressors, they are basically pretty close to the truth and you will see that our unit will stay with any unit on the market when you compare HP to HP. With Eaton Compressor, we are a 30-year company that has been building compressors with a name you can trust and we back it in writing. Please send us the pump-up time from the competition and we will give you our pump-up time to compare. This unit has a Free Air CFM of 353.2 @ 100 PSI.SUPER quiet – 78 dba.- sound comparison to a hair dryer. Unit has NPT 2” ball valve outlet. Don't be tricked by companies offering "free freight". They are really stripping a lot of features off of the unit and in real terms, you ARE paying for the freight and getting less for your money. This unit is recommended hooking into a 660-gallon tank or larger. This unit features hundreds and hundreds of dollars in options that you will not find on a unit at this price. The Eaton Compressor Rotary Screw is good for 70,000 running hours as long as the unit is maintenanced properly. Many of our customers that call us ask us about Rotary Screw Compressors and do not understand what makes them different from other units – piston type. Our low RPM piston-type compressor is good for many thousands of hours, but must maintain a maximum duty cycle range – maximum duty cycle on a low RPM piston machine is 80/20. We see our name-brand competitors offering 100% duty cycle on a high RPM piston pump. This is not possible for many years of use. With a piston-type machine (low RPM of 600-800), you can run up to 80% duty cycle. With the high RPM machines, 1,000 RPM’s and faster are not possible for 100% duty cycle because they are air cooled machines. The valves get very hot from lots of friction in combination with high RPM. Since most piston machines are air cooled, the valves on the intake and exhaust do not cool out properly. Most of the machines that advertise 100% duty cycle might make it out of the warranty if used hard every day. The only piston machine that can be ran 100% duty cycle is a water-cooled machine-not air cooled. With the Rotary Screw, it is a totally different story because the Rotary screw compressor does not use intake and exhaust valves. It has 2 helical-cut rotors that fit together in very close tolerances. They are flooded with oil injection. The oil injection sprays oil directly onto the rotors and roller bearings. This cools the screw very efficiently. The air and oil are mixed together. Then they are ran through the oil separation process. There is a coalescing filter built into the small air tank. This filter separates the oil and air mixture down to 3 ppm (parts per million). The oil separated air is then ran through an air-cooled aluminum aftercooler. This aluminum aftercooler pulls a tremendous amount of heat off the air on the output side. The air coming off of this is made to go directly into any refrigerant dryer or desiccant dryer without having an air cooled intercooler.This is because this unit has extra large aftercooler for high moisture surroundings. This unit has a high volume exhaust fan that not only cools the exhaust air, but puts air through the oil cooler. The oil cooler is a separate radiator that cools the synthetic oil and recirculates it back to the air oil tank.
This unit has a built-in thermostatic oil valve. This controls the heat in the oil. It is very important that the oil is not cooled down too much because of condensation build up. This thermostat will control the air temperature between 150-180o helping to prevent water condensation in the synthetic oil. What makes this machine 100% duty cycle is that the oil that is injected into the screw for lubrication is also helping to cool it down because the oil is getting into every nook and cranny and pulling the heat off of the screw rotors and then the oil is cooled through an oil cooler. This oil after oil separation is then returned back to the oil sump and repeats this process thousands and thousands of times in a 24-hour period. With a screw machine, it is made for 24 hours/day, 7 days/week operation.
This unit is controlled by a PLC (Programmable Logistic Controller). This controller makes this unit bullet proof. It has a low-oil shutdown. If the controller senses that the unit is going into high temperature, it will shut it down. The controller will also shut the unit down if it runs low in oil. This controller will control when the unit is wired up if it is running backwards, it will sense a reverse rotation fault and shut the unit down. This unit also has a high voltage fault. If the voltage is 15% over the power supply voltage rated on the Eaton Compressor Data Plate, the unit will shut down. Also, if the voltage is 15% under, it will shut it down also. This Eaton Controller also has an over-amp shutdown if the motor is pulling too many amps. This set up is very nice because you can go into the menu and check the amp draw on the electric motor as it is running and also on the exhaust fan motor. This amperage can be set by you, the customer, on the controller PLC board. This unit has a shutdown in case the unit goes over pressure.This unit has a maximum pressure setting – the computer will sense that it is going over pressure and will shut it down.
This unit will save you hundreds on your electric bill because under start up the modulator valve is completely closed. This closes the air off to the screw intake making low load under start up. After the unit gets started, it has a 12-second time delay. This allows the unit to get running for 12 seconds before it starts pumping air. This makes no load starting and will save your magnetic starter contactor and motor because of low amp draw. This unit has a Y Delta Starting capability. This makes the unit start in segments. The motor will start with only part of the motor being started. After 4 seconds time delay, then another segment of the motor comes in. This will also save you big on your electric bill because you are not getting the peak amperage all at once because the motor is started in segments. This PLC has a built-in clock with the date and time. This makes it nice when you maintenance your machine. You can keep track of the PM (preventative maintenance) of the time and day that you serviced it. This PLC also has a built-in light for dark locations. This PLC has a maintenance parameter. This machine has a built-in hour meter keeping track of the running hours on this machine.This PLC controls and keeps track of the maintenance time for each maintenance service that is needed on this unit such as it will keep track of when to change the air filter on the maintenance menu. It will keep track of when the oil filter needs changed and also keep track of when the coalescing filter needs changed. When the unit needs greased, it will track of that also. When each item needs changed when the service hours come up, the PLC will sound an alarm and on the digital screen it will tell you what needs changed. After changing it, you will go back into the PLC and put the time of the particular item that you changed back to zero. This will start a new maintenance time and keep track of when your filter needs changed the next time.
This unit has a wide range of air differential between pressure controlled by the PLC.You can take the kick-in pressure all the way down to 100 PSI and all the way up to 145 PSI. You can adjust this range in where in between. You can also set the high end down to a lower pressure where ever the customer unit pressure is desired. The Eaton Factory setting is 120 kick in and 145 kick out. The lower the pressure, the higher the CFM and the more hours you will get on your screw compressor air end. The higher the pressure, the more wear you will put on your screw compressor, so keep the pressure as low as possible. This unit has a built-in timer. This will sense when the unit is not being used for a period of 20 minutes under no load. This will shut down the machine automatically so it will restart as air pressure goes down to the kick-in set point. This unit has an on-line demand setting. This setting is made for high air volume and will bypass the automatic kick-off timed mode. It will keep the unit running on continuous run mode for high air demand. This is also controlled by the PLC.
This unit features: all cast iron oil-flooded rotary screw pump good for up to 70,000 running hours, hardened steel rotors and roller bearings for long compressor life, high quality shaft seal to seal the front shaft from oil leakage, high quality, long-life modulation valve, built-in aluminum after cooler and oil cooler combined with a TEFC cooling fan motor, 4 pre-mounted rubber mounts under the screw pump to absorb any vibration, all brass 1” ball valve, high quality pressure lube spin-on oil filter (easy to change), 4,000 hour synthetic oil (no start-up kit required), TEFC (totally enclosed external fan cooled- NOT open drip proof – this motor is made for dusty conditions-it is totally enclosed so dirt particals will not get into the inner windings of the motor making it easy to maintenance your motor-this motor is 1.25 service factor, the best in the business), all Internal stainless steel braided air and oil lines, heavy-duty all metal frame, heavy-duty all easy-to-remove access doors with a push of your finger-easy latch, each door has sound proof material for ultra quiet operation, very heavy-duty oil and air tank with ASME code safety valve, all UL/CSA compliant on electrical components, push-button emergency stop, and Eaton PLC controlled micro processor.
This unit is made for heavy-industrial use and even in a light-duty use. If you want the best of the best with the unit being so quiet, it sounds about like a hair dryer running, the Eaton Compressor Screw unit will serve your needs. We have 24 hour support. THIS UNIT HAS A 5-YEAR PARTS WARRANTY on the complete unit and a 10 YEAR WARRANTY on the Airend with annual purchase of original Eaton Maintenance kit.When you price a unit with all these features from the name brand companies, you will see we are hundreds and even thousands under our competition. Please contact us for a freight quote. If you have any questions please feel free to call us at 877-283-7614
$500 Feature Included - Adjustable Dual Volt Feature - This Feature Is A Necessity - If You Ever Decided To Move Your Business The Voltage Might Change - Many Rotary Screws On The Market Advertise 208/220/460, But It Only Comes Wired In One Voltage And The Motor Is Not Compatible - It Can Only Be Wired For One Voltage - It is Not Adjustable Voltage Without Replacing The Electric Motor ,Magnetic Starters, Control Transformers, Etc. - This Can Be Very Expensive To Change Your Voltage In Many Units - This Machine Has a Dual Voltage Motor Which Can Be Rewired For The Voltage Of Your Preference 208/220/460 - Also All Control Components Magnetic Starter Contactor, Control Transformer And Cooling Fan Are Adjustable Voltage Components Without Any Expense Of Changing Any Electrical Components - After Changing The Motor Voltages To Your Preference You Can Go Into The Computer Controller And Change The Voltage For Example: From 230V To 460V And Change The AMP Setting To The AMP Range Of The Voltage You Are Running - This Will Save You From Buying Heater Over Loads For Different AMP Ranges - Compressors With This Dual Voltage Option Can Cost Thousands Of Dollars To Change Over To The Voltage You Need.
Free 5 year oil analysis kit with every rotary screw purchase
Every quarter you will need to send us an Oil Sample , once the sample is received we do an oil analysis and email you back with the results.
402CFM High Temp Dryer
Pipe Size: Inlet & Outlet (inches)
Phase (Neutral Wire Required)
Drain- CALL OUT/SIDE BAR
Cabinet Type CALL OUT OR FEATURES & BENEFITS
Refrigerant Pressure Gauge CALL OUT
Outlet Air Baffle Heater CALL OUT
Dew Point (degrees F)
Max Working PSI
Max Rated Inlet Temperature (degrees F)
Amount of Refrigerant(oz)
Max Ambient Temperature (degrees F)
47" x 28"x 52"
Shipping Weight (Lbs)
This is ourEaton Dry Air Model 402 Dry Air. This unit will dry up to 402 CFM very effeciently with very dry air. This dryer is used in body shops, machine shops, all businesses that need dry air. Water is a bad part of a compressor without a dryer. It will ruin your air tools and air motors on machines or anything that needs dry air. We have many customers that ask us “do you have a compressor with water-free air?” The only way to achieve this is to cool your air down to dew point. For example, humidity is in the air and you cannot see it. It is as a gas form. The only way to remove this water from the air is to cool the air down to dew point. Everybody knows when a low front comes through that it rains. The reason for this is the moisture that is in a gas form is cooled down and this is how you get rain. Another example is your air conditioner in the summer has water dripping off of the condenser. This is the same principle as our air dryer. It is cooling the air through a heat exchanger by circulating refrigerant (404A). After the water is evaporated out of the air, it is collected in an accumulator or water trap. This water trap has a built-in auto drain which drains the accumulated water from the heat exchanger. After your air goes through this process, it gets all of the water out of your air system.
This refrigerated air dryer system is very low maintenance. This dryer is very easy to wire. It is 220V, 3 Phase only. Then just connect your air lines from the compressor to the IN marked “air port” and connect your shop air to the OUT marked “air port”. On the IN marked “air port”, I do recommend a coalescer filter system. This will remove all particulate from your air system down to 1 micron. A coalescer filter will also remove any oil that the compressor might use and keep it from getting into your air dryer. An air compressor oil-type will use 1-5 parts per million in oil carry over. It is just like your car motor, it will use “some” oil. The oil that is uses gets into your air lines in a millionth amount, but over a period of time, can plug your dryer up. This filter system will stop that from happening.
We use high quality refrigeration units in our dryers and high quality heat exchangers for maximum durability in industrial applications. This dryer also cycles the fan motor on and off as the air temperature goes up and down. It is very energy efficient. This dryer also has a temperature gauge on the outlet air line that tells the air temperature. This dryer has a lighted ON/OFF switch that you can turn your dryer on and off manually at the beginning or end of the day. This dryer has a very high quality auto drain for draining your air dryer. It also has a ball valve to turn the air off to the auto drain when maintenancing it and you do not have to shut your shop down when doing so. You can drain it manually when doing this. This dryer has an easy-access panel on the right side of it as you are facing the front of the dryer. This has 2-hand tightened screws so you can quickly remove it for maintenancing it. This dryer has NO plastic—it is all HEAVY gauge material. This dryer has a 2” inlet port and a 2” outlet port.
You do not need any intercoolers with this dryer. It will handle your air system with great efficiency and QUIET operation.
Here at Eaton Compressor & Fabrication we cover our air dryers 100%. We have been covering our warranties for 31 years and have had many, many SATISFIED customers that can depend on us 100%. This dryer is covered by a 5-Year Warranty on the heat exchanger and a 2-Year Warranty on the rest of the dryer unit and includes an Owner’s/Operator’s Manual. This warranty is NOT a PRO-RATED warranty! A pro-rated warranty means the older and longer the warranty period is, the more you, as the customer, will pay out of YOUR pocket to get it fixed which means the liability is on the customer. At Eaton Compressor, our Eaton Dry Air Dryers are VERY HIGH quality and backed by us. With most of the competition when you have a problem, you have to go to the dealer and then they go to the manufacturer which takes lots of time and causes longer downtime. With Eaton Compressor, we can help you with an air technician to fix any problem you would have very quickly.
Email us with your city, state, and zip for freight quote. We give some of the most competitive shipping rates---but we do not "bump up" the unit cost and then claim "free shipping"! You can also pick the unit up here at our factory to save on freight. If you come to the factory to pick up your unit and you are not FULLY satisfied, you will not be obligated to take the unit with you. We are confident that you will be 100% satisfied!! We accept Visa, MasterCard, Discover, money orders, certified checks, or business checks and personal checks. However, if paying by business or personal check, unit will ship 10 days after. Thanks for taking the time to view our product
Please Note: Shipping costs are not included in the prices shown on our site.
We do not currently use the freight calculator feature on our site because it does not automatically give our customers the lowest discounted freight rate. We have recently expanded our National network of freight carriers to provide coverage across the country and into Canada & Mexico. This ensures our customers the lowest cost freight solutions available - every day!