RIX Industries 4VX4BG-17.5 4-Stage Oil-Free Helium/Air Mix Compressor – 60 SCFM – 3,300 PSIG – 40 HP – Parts Unit( 2 out of 2)

RIX Industries 4VX4BG-17.5 4-Stage Oil-Free Helium/Air Mix Compressor – 60 SCFM – 3,300 PSIG – 40 HP – Parts Unit

This used RIX Industries 4VX4BG-17.5 is a 4-stage oil-free compressor configured for a helium/air mixture and is not configured for pure helium service. The unit is rated for 60 SCFM with a 50 PSIG inlet pressure and 3,300 PSIG discharge pressure, and the control panel shows approximately 9,500 hours. The compressor is powered by a 40 HP motor, with the 2nd and 3rd compression stages missing components, including two cylinders, two heads, and two valves; an identical complete unit is also available. This unit is not recommended for pure helium use according to the manufacturer.

Technical Specifications

Manufacturer: RIX Industries

Model: 4VX4BG-17.5

Condition: Used – Parts Missing

Control Panel Hours: Approximately 9,500 Hours

Gas Service: Helium (He)

Compression Configuration: 4-Stage

Compression Type: Oil-Free

Flow Capacity: 60 SCFM

Inlet Pressure: 50 PSIG

Discharge Pressure: 3,300 PSIG

Motor: 40 HP

Operating Speed: 250–750 RPM

Cylinder Diameter Range: 0.5”–5.5”

Stroke: 4”

Heat Exchangers: Air-Cooled

Compression Cylinders: Air-Cooled

Crankcase: Air-Cooled, Pressure-Lubricated

Crankcase Lubricant: Standard Automotive Engine Oil

Cylinder Configuration: Modular

Control Panel: Included

Motor Condition: Motor Turns with No Problems

Missing Components

Missing Compression Stages: 2nd and 3rd Stages

Missing Cylinders: 2

Missing Heads: 2

Missing Valves: 2

2nd Stage: Cylinder, Head, and Valve Missing

3rd Stage: Cylinder, Head, and Valve Missing

Other Unit Available: One Identical Unit with No Parts Missing

RIX 4VX Series Performance Specifications

Series Pressure Range: 50–5,000 PSIG

Typical Series Flow Capacity: 30–200 SCFM

Series Power: Up to 50 HP

Listed Series Gas Types: Argon (Ar), Helium (He), Hydrogen (H₂), Oxygen (O₂), Nitrogen (N₂), CNG, and Other Gas Compositions

Series Compression Configuration: Up to 4 Stages of Oil-Free Compression

Normal Operating Pressure Range

Suction: 50 PSIG

1st Stage: 140 PSIG

2nd Stage: 400 PSIG

3rd Stage: 1,300 PSIG

4th Stage: 3,300 PSIG

Back Pressure Regulator (BPR): Approximately 500 PSI

Relief Valve Settings

Suction: 75 PSIG

1st Stage – RV1: 250 PSIG

2nd Stage – RV2: 600 PSIG

3rd Stage – RV3: 1,500 PSIG

4th Stage – RV4: 3,500 PSIG

Operating Temperatures

Ambient Temperature Basis: 100°F

1st Stage Discharge Gas: 320°F

1st Stage Discharge After-Cooler: Approximately 20°F Above Ambient

2nd Stage Discharge Gas: 330°F

2nd Stage Discharge After-Cooler: Approximately 20°F Above Ambient

3rd Stage Discharge Gas: 340°F

3rd Stage Discharge After-Cooler: Approximately 20°F Above Ambient

4th Stage Discharge Gas: 320°F

4th Stage Discharge After-Cooler: Approximately 20°F Above Ambient

Safety Switch Settings

Oil Pressure – PSO: Shutdown at 25 PSI Falling

Discharge Gas Pressure – PSR Stop: 3,300 PSI

Discharge Gas Pressure – PSR Start: 3,000 PSI

Suction Gas Pressure Stop: 35 PSI Falling

3rd Stage High Gas Temperature Stop: 450°F

4th Stage High Gas Temperature Stop: 390°F

High Vibration: Shutdown – Hammer Blow

Dimensions & Weight

Bare Unit Dimensions: 41” W × 54” L × 36” H

Bare Unit Weight: Approximately 750 Lbs with Flywheel

Typical Packaged Dimensions: 46” W × 88” L × 43” H

Typical Packaged Weight: Approximately 2,000–3,000 Lbs

Skid Dimensions per Drawings: Approximately 142” L × 96” W × 83” H

Skid Weight per Drawings: 8,700 Lbs

Pre-Purchase Inspections

We welcome pre-purchase inspections during normal business hours, by appointment only. If you’re planning to fly in to view or inspect the equipment in person, we are happy to arrange that with proper notice.

Shipping Arrangements

This unit is sold EXW (Ex Works) our Waxahachie, TX yard. The buyer is responsible for arranging and paying for all shipping and freight. We provide yard access for your carrier by appointment and will load units up to 15,000 lbs at no charge when scheduled in advance.

Payment Terms

Full payment is required before the release of any equipment. Lease and lease-to-own options are available.

A verifiable cashier’s check is required if paying in person. If you plan to use a third-party shipping company, a wire transfer must be completed and cleared in full before we release the equipment.

We always prefer to meet our customers in person, go over equipment features, discuss project needs, and answer any questions. Ensuring you receive the right support for your success is the key to a long-term relationship.

Contact Us

If you have any questions, please don’t hesitate to reach out. We’re happy to answer online inquiries or jump on a call to explore how any of our available equipment at GasEquipment4Sale can help support your project needs.