Metal Mountain Equipment

RIX 4VX SERIES 40HP Helium compressor 60 scfm 50 psi to 3300 psi -( 2 out of 2)

RIX 4VX SERIES 40HP Helium compressor 60 scfm 50 psi to 3300 psi -( 2 out of 2)Used

Specifications

ManufacturerRIX
Model4VX4BG - 17.5
ConditionUsed
Capacity60 SCFM
Pressure Rating3,300 PSIG
Gas ServiceHelium, Argon, Hydrogen, Oxygen, Nitrogen, CNG
Previous ServicePrevious helium service
LocationWaxahachie, TX, United States
Stock #GE4S-1077

Description

RIX Industries 4VX4BG-17.5 four-stage oil-free helium compressor, 40 HP, rated 50 psi inlet to 3300 psi discharge at 60 SCFM. Control panel shows 9,500 hours. This is the second of two identical units available, and it is missing the second and third compression stages (cylinders, heads, and valves), making it suitable as a parts unit or for rebuild. This is 2nd of the 2 identical units we have. The price if for this unit described and shown in this listing. There are 2 compression stages are missing - 2nd and 3rd stages ( please see pictures). Also please be advised that we have identical unit with no parts missing so this one could be great addition or "PARTS" unit if needed. ( Will make a deal on 2 units) This unit is designed for efficient and reliable operation around the clock, even for the most demanding of applications. FEATURES: Modular Design - Flexible cylinder configurations for up to 4 stages of oil-free compression to meet a wide range of applications• Air-cooled heat exchangers, compression cylinders, and crankcase - Compact/light weight package that is easy to transport and service for years to come• Pressure lubricated crankcase - Durability and simplicity (uses standard automotive engine oil)• Rated for 100% Continuous Duty RIX 4VX SERIES UNITS PERFORMANCE SPECIFICATIONS: PRESSURE RANGE: 50-5000 PSIG TYPICAL FLOW CAPACITY: 30-200 SCFM POWER: Up to 50 HP GAS TYPE: Ar, He, H2, O2, N2, CNG & other gas compositions THIS COMPRESSOR SPECIFICATIONS: PRESSURE RANGE: Inlet 50 psi - outlet 3300 psi FLOW CAPACITY: 60 SCFM POWER: 40 HP GAS TYPE: He Cylinder 0.5-5.5"D Stroke 4" Speed Range: 250-750 RPM NORMAL OPERATING PRESSURE RANGE: Suction 50PSIG 1st Stage 140 PSIG 2nd Stage 400 PSIG 3rd Stage 1300 PSIG 4th Stage 3300 PSIG BPR Setting 500 PSI (Approximate) RELIEF VALVE SETTINGS Stage Symbol Set Point Suction 75 PSIG 1st Stage RV1 250 PSIG 2nd Stage RV2 600 PSIG 3rd Stage RV3 1500 PSIG 4th Stage RV4 3500 PSIG OPERATING TEMPERATURES Location Normal Range 1st Stage Discharge Gas 320 degrees Fahrenheit 1st Stage Discharge After Cooler 20 degrees above ambient 2nd Stage Discharge Gas 330 degrees Fahrenheit 2nd Stage Discharge After Cooler 20 degrees above ambient 3rd Stage Discharge Gas 340 degrees Fahrenheit 3rd Stage Discharge After Cooler 20 degrees above ambient 4th Stage Discharge Gas 320 degrees Fahrenheit 4th Stage Discharge After Cooler 20 degrees above ambient The above operating temperatures are based on an ambient temperature of 100 degrees Fahrenheit. SAFETY SWITCH SETTINGS Switches Symbol Function Set Point Oil Pressure PSO Shutdown 25 PSI falling Discharge Gas Pressure PSR Stop 3300 PSI Start 3000 PSI Suction Gas Pressure Stop 35PSI Failing Start High Gas Temp, 3rd stage* Stop 450 Degrees Fahrenheit High Gas Temp, 4th stage* Stop 390 Degrees Fahrenheit High Vibration Shutdown Hammer blow The compressor has 2 cylinders, 2 heads, 2 valves missing (Stage 2 and 3) Please see pictures. The motor turns with no problems. Dimensions: Bare Unit Dimensions: 41”W x 54”L x 36”H¹ Weight: 750 lbs. (with flywheel)¹ Typical Pkg. Dimensions: 46”W x 88”L x 43”H¹

Questions buyers ask

What capacity and discharge pressure does it actually deliver?

This unit is incomplete and cannot deliver rated capacity. It is missing the second and third compression stages (cylinders, heads, and valves), leaving only stages 1 and 4 installed. As configured, it is suitable as a parts donor or rebuild project, not for operation.

What drive, power and cooling does it require?

The compressor is driven by a 40 HP motor and uses air-cooled heat exchangers for interstage cooling and crankcase cooling. The crankcase is pressure-lubricated with standard automotive engine oil. Four-stage RIX compressors in this series typically run at 250-750 RPM through a belt or direct drive, though the specific motor voltage and phase are not stated in the listing.

What are the running hours and what has been rebuilt?

The control panel shows 9,500 hours. No rebuild history or component replacement information is provided in the listing. The seller notes the motor turns with no problems, but with two complete stages missing, a full inspection of remaining components and service records should be requested.

What should I inspect on a used compressor before buying?

On oil-free helium compressors, check piston ring and rider band wear, valve condition, and interstage pressure ratios during operation to assess remaining seal life. Verify crankcase oil pressure, listen for bearing noise, and check vibration levels at operating speed. Since this unit is missing stages 2 and 3, confirm the condition of the remaining first and fourth stage components, flywheel, crankshaft, and control panel before purchasing as parts or for rebuild.

General guidance for this type of equipment. Ask about this specific unit in your inquiry — the seller answers directly.

Inspection, shipping & payment

Inspection Pre-purchase inspections are welcome during normal business hours by appointment arranged in advance. We can provide complimentary transportation from DFW Airport and back if you would like to send someone to see the equipment in person. We can also walk through the item over a video call for domestic or international buyers. We are on US Central Time. Shipping and loading The equipment is located at our yard south of Dallas, Texas. We can assist with shipping arrangements. Loading is provided at no charge for equipment under 15,000 lb when scheduled in advance. Equipment over 15,000 lb requires a crane, which is arranged and paid for by the buyer. Payment Payment in full is required FOB our yard in South Dallas. A verifiable cashier's check is accepted for collection in person. For release to a third-party shipper we require a wire transfer cleared in our account before the equipment leaves the yard.

Terms set by Gas Equipment 4 Sale.

ManufacturerRIX
TypeCompressors
LocationWaxahachie, TX, United States
Stock #GE4S-1077

Seller

Gas Equipment 4 Sale

Waxahachie, TX, United States

Verified

Business and location confirmed by Metal Mountain.

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