120R 2HP ROCKING PISTON COMPRESSOR & SYSTEMS

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OUR COMMITMENT

Gast has driven industrial progress for over a century, embedding our innovative solutions in systems and equipment vital to everyday life.

From our origins in 1921 in Bridgman, Michigan, as manufacturers of rotary vane technologies used in insecticide sprayers, Gast has grown and evolved through generations of family leadership and pivotal moments.

In 1998, Gast joined IDEX, shifting from a private company to a public one after 77 years.

• 1921 – Founding Year

• 300+ Employees Worldwide

• 200,000 Products Shipped in 2023

• 140+ Applications

• 40+ Markets & Segments Served

Since then, we’ve established ourselves as leaders in pneumatic solutions such as air motors, vacuum pumps, compressors, and systems catering to sectors from medical and industrial to transportation and food and beverage.

The acquisition of Jun-Air in 2006 marked another milestone. It further enhanced our offerings with pneumatic systems for critical instrument air applications, cementing our role as innovators in the global market.

Today, with robust international operations in Europe and Asia, Gast’s impact continues to expand. At the heart of our identity is a commitment to innovation, service, and an integrated role in powering the world.

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QUALITY

Our products stand at the forefront of advanced performance and durability, earning the trust of users in critical applications. Designed to be both rugged and serviceable, they are engineered to maximize uptime, ensuring continued operation when it matters most.

Our commitment to versatility shines through in our:

• Flexible mounting and porting options

• Broad selection of voltages and frequencies

This makes our offerings the most adaptable and comprehensive solutions in the pneumatic industry.

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SINGLE-SOURCE PARTNER

We are your one-stop shop, boasting a comprehensive range of pumps and compressed air systems tailored for various applications.

Features include:

• Fully enclosed cabinet systems

• Sleek and clean design

• Plug-and-play operation

• Quieter performance for customer comfort

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INTEGRATION ASSISTANCE AND CRITICAL CUSTOMER SUPPORT

• Custom solutions to fit system requirements

• Dedicated technical support team for all inquiries

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LABORATORY AND TESTING PARTNERSHIP

• Share drawings or visit our lab for optimization

• Lab testing, regulatory certification, efficiency validation

• Saves time, labor, and enhances customer products

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ROCKING PISTON TECHNOLOGY

ENGINEERED FROM THE GROUND UP

With an innovative design, low sound and vibration, rocking piston compressors feature:

• Industry-leading life and reliability

• Oil-less operation requiring minimal maintenance

• Ensured air purity

KEY BENEFITS

• Smaller Footprint & Versatility: Ideal for compact applications

• Quiet Operation: Suitable for medical, lab, and residential use

• Continuous Duty: Energy-efficient and long-lasting

• Redundancy Capabilities: Parallel units ensure system reliability

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TECHNICAL HIGHLIGHTS

• Advanced bearings

• 5,000+ hour piston cup life @ 125 psi

• Improved cooling & new seal blend

• Bearing life: 20,000+ hours

• 100% duty cycle

• Max pressure: 145 psi

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INDUSTRY LEADER IN SOUND & VIBRATION MEASUREMENT

• Utilizes real-time data acquisition for temp, gas purity, duty cycle

• Lab testing for compliance (UL, CSA, CE, ATEX, etc.)

• Validates: Sound levels (40 dBA), power metrics, vibration

• Testing Capabilities:

  • Up to 1500 CFM

  • Pressures up to 200 psi

  • Voltage up to 480V

  • Temperature: -30°F to 185°F

  • Humidity: 0–100%

  • Torque: up to 30 HP

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120R SERIES OVERVIEW

2HP ROCKING PISTON: A POWERFUL WORKHORSE

• Small footprint

• Rugged, reliable, long-life

• Lower total cost of ownership

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DESIGN FEATURES

• Most powerful twin cylinder rocking piston on the market

• Optimized connecting rod and valve design

• Easy serviceability

• Flexible mounting (horizontal or vertical)

• Oil-free, quiet, and efficient

• Up to 145 psi and 12 CFM

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REGULATORY COMPLIANCE

• UL 1450 and UL 60601-1 compliant

• CE Approved: Machinery, EMC, and RoHS2 Directives

• UL Recognized and UL Listed

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PRODUCT CONFIGURATION CHART

Model Feature	120R689	120R665	Others (e.g., PSP101-N800NX)
Max Pressure (PSI)	145	135	145
Flow @ 60 Hz (CFM)	12	10	12
Sound dB(A)	79	74	71–79
Weight (lbs)	59–65
Dimensions (in)	6.7 x 12.7 x 15.4

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SOUND SHIELD TECHNOLOGY

• Up to 17% noise reduction

• Maintains 95% airflow and performance

• Retains product life

• Field or factory retrofit with kit SSP-120R6-01

Kit includes:

• Head

• Valve plate

• Sound shield inserts

• O-rings

• Fasteners

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JUN-AIR CLEAN AIR SYSTEMS

PORTABLE, CLEAN, QUIET

• For dental, medical, lab use

• Lightweight, mobile with casters

• 2-year warranty

TECHNICAL SPECS

• 100% oil-free

• 100% duty cycle receiver

• -40°C dew point

• 4,000-hour maintenance interval

• 5-year dryer warranty

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JUN-AIR CONFIGURATIONS

Model	Flow (CFM)	Sound dB(A)	Weight (lbs)	Dimensions (in)
40B	10	79	120	18.1 x 27.5 x 22
40M	8.5	69	245	25 x 33.7 x 26.6
90BQ3	12	80	270	22.3 x 35.3 x 40.4

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MODULAR SYSTEMS: SCALABILITY BY DESIGN

UP TO 12 HP / 64 CFM

• Modular Power: 2–12 HP

• Flow Range: 11–64 CFM

• Redundancy: Keeps running even if one module fails

• Flexible Mounting

• Sequential Starting minimizes power surge

Build Your Own System

• Frame, Base, Tee

• Check Valve

• Aftercooler

• Start Timer

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APPLICATIONS

FOOD & BEVERAGE

• Nitrogen generation

• Beverage dispensing

• Milking, packaging, misting systems

MEDICAL, DENTAL & LABORATORY

• Dental hand tools

• Lab gas/air systems

• Operating room & point-of-care (POC) equipment

OIL & GAS

• Methane abatement

• Gas compression pre-lube systems

• Valve actuators, pipeline tools, hoists, chromatography